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I2C has mainly cleanups this time and a few driver improvements. Because

Browse Source 
a lot of developers were on holidays (including myself) it was a good
 timing to apply lots of cleanups which would normally cause merge
 conflicts with other floating patches. Extra thanks go to Andi Shyti who
 backed me up when I was on a four week hiatus. This is also the reason
 that some patches were commited later than ideal.
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Merge tag 'i2c-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "I2C has mainly cleanups this time and a few driver improvements.

  Because a lot of developers were on holidays (including myself) it was
  a good timing to apply lots of cleanups which would normally cause
  merge conflicts with other floating patches. Extra thanks go to Andi
  Shyti who backed me up when I was on a four week hiatus. This is also
  the reason that some patches were commited later than ideal"

* tag 'i2c-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (67 commits)
  i2c: at91: Use dev_err_probe() instead of dev_err()
  I2C: ali15x3: Do PCI error checks on own line
  i2c: Make return value check more accurate and explicit for devm_pinctrl_get()
  i2c: designware: Add support for recovery when GPIO need pinctrl
  i2c: mlxcpld: Add support for extended transaction length
  i2c: mlxcpld: Allow driver to run on ARM64 architecture
  i2c: nforce2: Do PCI error check on own line
  i2c: sis5595: Do PCI error checks on own line
  i2c: qcom-cci: Fix error checking in cci_probe()
  i2c: muxes: pca954x: Add regulator support
  i2c: muxes: pca954x: Add MAX735x/MAX736x support
  dt-bindings: i2c: Add Maxim MAX735x/MAX736x variants
  dt-bindings: i2c: pca954x: Correct interrupt support
  i2c: pnx: Use devm_platform_get_and_ioremap_resource()
  i2c: pxa: Use devm_platform_get_and_ioremap_resource()
  i2c: s3c2410: Use devm_platform_get_and_ioremap_resource()
  i2c: sh_mobile: Use devm_platform_get_and_ioremap_resource()
  i2c: st: Use devm_platform_get_and_ioremap_resource()
  i2c: qcom-geni: Convert to devm_platform_ioremap_resource()
  i2c: stm32f4: Use devm_platform_get_and_ioremap_resource()
  ...
This commit is contained in:
Linus Torvalds 2023-09-04 13:44:11 -07:00
commit e3b85b0765
73 changed files with 562 additions and 565 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
View File

@ -48,6 +48,9 @@ properties:
default: 16
enum: [2, 4, 8, 16, 32, 64, 128, 256]
power-domains:
maxItems: 1
required:
- compatible
- reg

82
Documentation/devicetree/bindings/i2c/i2c-arb-gpio-challenge.txt
View File

@ -1,82 +0,0 @@
GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
=================================================================
This uses GPIO lines and a challenge & response mechanism to arbitrate who is
the master of an I2C bus in a multimaster situation.
In many cases using GPIOs to arbitrate is not needed and a design can use
the standard I2C multi-master rules. Using GPIOs is generally useful in
the case where there is a device on the bus that has errata and/or bugs
that makes standard multimaster mode not feasible.
Note that this scheme works well enough but has some downsides:
* It is nonstandard (not using standard I2C multimaster)
* Having two masters on a bus in general makes it relatively hard to debug
problems (hard to tell if i2c issues were caused by one master, another, or
some device on the bus).
Algorithm:
All masters on the bus have a 'bus claim' line which is an output that the
others can see. These are all active low with pull-ups enabled. We'll
describe these lines as:
- OUR_CLAIM: output from us signaling to other hosts that we want the bus
- THEIR_CLAIMS: output from others signaling that they want the bus
The basic algorithm is to assert your line when you want the bus, then make
sure that the other side doesn't want it also. A detailed explanation is best
done with an example.
Let's say we want to claim the bus. We:
1. Assert OUR_CLAIM.
2. Waits a little bit for the other sides to notice (slew time, say 10
microseconds).
3. Check THEIR_CLAIMS. If none are asserted then the we have the bus and we are
done.
4. Otherwise, wait for a few milliseconds and see if THEIR_CLAIMS are released.
5. If not, back off, release the claim and wait for a few more milliseconds.
6. Go back to 1 (until retry time has expired).
Required properties:
- compatible: i2c-arb-gpio-challenge
- our-claim-gpio: The GPIO that we use to claim the bus.
- their-claim-gpios: The GPIOs that the other sides use to claim the bus.
Note that some implementations may only support a single other master.
- I2C arbitration bus node. See i2c-arb.txt in this directory.
Optional properties:
- slew-delay-us: microseconds to wait for a GPIO to go high. Default is 10 us.
- wait-retry-us: we'll attempt another claim after this many microseconds.
Default is 3000 us.
- wait-free-us: we'll give up after this many microseconds. Default is 50000 us.
Example:
i2c@12ca0000 {
compatible = "acme,some-i2c-device";
#address-cells = <1>;
#size-cells = <0>;
};
i2c-arbitrator {
compatible = "i2c-arb-gpio-challenge";
i2c-parent = <&{/i2c@12CA0000}>;
our-claim-gpio = <&gpf0 3 1>;
their-claim-gpios = <&gpe0 4 1>;
slew-delay-us = <10>;
wait-retry-us = <3000>;
wait-free-us = <50000>;
i2c-arb {
#address-cells = <1>;
#size-cells = <0>;
i2c@52 {
// Normal I2C device
};
};
};

135
Documentation/devicetree/bindings/i2c/i2c-arb-gpio-challenge.yaml Normal file
View File

@ -0,0 +1,135 @@
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/i2c-arb-gpio-challenge.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
maintainers:
- Doug Anderson <dianders@chromium.org>
- Peter Rosin <peda@axentia.se>
description: |
This uses GPIO lines and a challenge & response mechanism to arbitrate who is
the master of an I2C bus in a multimaster situation.
In many cases using GPIOs to arbitrate is not needed and a design can use the
standard I2C multi-master rules. Using GPIOs is generally useful in the case
where there is a device on the bus that has errata and/or bugs that makes
standard multimaster mode not feasible.
Note that this scheme works well enough but has some downsides:
* It is nonstandard (not using standard I2C multimaster)
* Having two masters on a bus in general makes it relatively hard to debug
problems (hard to tell if i2c issues were caused by one master, another,
or some device on the bus).
Algorithm:
All masters on the bus have a 'bus claim' line which is an output that the
others can see. These are all active low with pull-ups enabled. We'll
describe these lines as:
* OUR_CLAIM: output from us signaling to other hosts that we want the bus
* THEIR_CLAIMS: output from others signaling that they want the bus
The basic algorithm is to assert your line when you want the bus, then make
sure that the other side doesn't want it also. A detailed explanation is
best done with an example.
Let's say we want to claim the bus. We:
1. Assert OUR_CLAIM.
2. Waits a little bit for the other sides to notice (slew time, say 10
microseconds).
3. Check THEIR_CLAIMS. If none are asserted then the we have the bus and we
are done.
4. Otherwise, wait for a few milliseconds and see if THEIR_CLAIMS are released.
5. If not, back off, release the claim and wait for a few more milliseconds.
6. Go back to 1 (until retry time has expired).
properties:
compatible:
const: i2c-arb-gpio-challenge
i2c-parent:
$ref: /schemas/types.yaml#/definitions/phandle
description:
The I2C bus that this multiplexer's master-side port is connected to.
our-claim-gpios:
maxItems: 1
description:
The GPIO that we use to claim the bus.
slew-delay-us:
default: 10
description:
Time to wait for a GPIO to go high.
their-claim-gpios:
minItems: 1
maxItems: 8
description:
The GPIOs that the other sides use to claim the bus. Note that some
implementations may only support a single other master.
wait-free-us:
default: 50000
description:
We'll give up after this many microseconds.
wait-retry-us:
default: 3000
description:
We'll attempt another claim after this many microseconds.
i2c-arb:
type: object
$ref: /schemas/i2c/i2c-controller.yaml
unevaluatedProperties: false
description:
I2C arbitration bus node.
required:
- compatible
- i2c-arb
- our-claim-gpios
- their-claim-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c-arbitrator {
compatible = "i2c-arb-gpio-challenge";
i2c-parent = <&i2c_4>;
our-claim-gpios = <&gpf0 3 GPIO_ACTIVE_LOW>;
their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
slew-delay-us = <10>;
wait-retry-us = <3000>;
wait-free-us = <50000>;
i2c-arb {
#address-cells = <1>;
#size-cells = <0>;
sbs-battery@b {
compatible = "sbs,sbs-battery";
reg = <0xb>;
sbs,poll-retry-count = <1>;
};
embedded-controller@1e {
compatible = "google,cros-ec-i2c";
reg = <0x1e>;
interrupts = <6 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gpx1>;
pinctrl-names = "default";
pinctrl-0 = <&ec_irq>;
wakeup-source;
};
};
};

35
Documentation/devicetree/bindings/i2c/i2c-arb.txt
View File

@ -1,35 +0,0 @@
Common i2c arbitration bus properties.
- i2c-arb child node
Required properties for the i2c-arb child node:
- #address-cells = <1>;
- #size-cells = <0>;
Optional properties for i2c-arb child node:
- Child nodes conforming to i2c bus binding
Example :
/*
An NXP pca9541 I2C bus master selector at address 0x74
with a NXP pca8574 GPIO expander attached.
*/
arb@74 {
compatible = "nxp,pca9541";
reg = <0x74>;
i2c-arb {
#address-cells = <1>;
#size-cells = <0>;
gpio@38 {
compatible = "nxp,pca8574";
reg = <0x38>;
#gpio-cells = <2>;
gpio-controller;
};
};
};

46
Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
View File

@ -4,21 +4,29 @@
$id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP PCA954x I2C bus switch
title: NXP PCA954x I2C and compatible bus switches
maintainers:
- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
description:
The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
allOf:
- $ref: /schemas/i2c/i2c-mux.yaml#
The NXP PCA954x and compatible devices are I2C bus
multiplexer/switches that share the same functionality
and register layout.
The devices usually have 4 or 8 child buses, which are
attached to the parent bus by using the SMBus "Send Byte"
command.
properties:
compatible:
oneOf:
- enum:
- maxim,max7356
- maxim,max7357
- maxim,max7358
- maxim,max7367
- maxim,max7368
- maxim,max7369
- nxp,pca9540
- nxp,pca9542
- nxp,pca9543
@ -59,10 +67,34 @@ properties:
description: if present, overrides i2c-mux-idle-disconnect
$ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
vdd-supply:
description: A voltage regulator supplying power to the chip. On PCA9846
the regulator supplies power to VDD2 (core logic) and optionally to VDD1.
required:
- compatible
- reg
allOf:
- $ref: /schemas/i2c/i2c-mux.yaml#
- if:
not:
properties:
compatible:
contains:
enum:
- maxim,max7367
- maxim,max7369
- nxp,pca9542
- nxp,pca9543
- nxp,pca9544
- nxp,pca9545
then:
properties:
interrupts: false
"#interrupt-cells": false
interrupt-controller: false
unevaluatedProperties: false
examples:
@ -74,11 +106,13 @@ examples:
#size-cells = <0>;
i2c-mux@74 {
compatible = "nxp,pca9548";
compatible = "nxp,pca9545";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x74>;
vdd-supply = <&p3v3>;
interrupt-parent = <&ipic>;
interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;

29
Documentation/devicetree/bindings/i2c/nxp,pca9541.txt
View File

@ -1,29 +0,0 @@
* NXP PCA9541 I2C bus master selector
Required Properties:
- compatible: Must be "nxp,pca9541"
- reg: The I2C address of the device.
The following required properties are defined externally:
- I2C arbitration bus node. See i2c-arb.txt in this directory.
Example:
i2c-arbitrator@74 {
compatible = "nxp,pca9541";
reg = <0x74>;
i2c-arb {
#address-cells = <1>;
#size-cells = <0>;
eeprom@54 {
compatible = "atmel,24c08";
reg = <0x54>;
};
};
};

56
Documentation/devicetree/bindings/i2c/nxp,pca9541.yaml Normal file
View File

@ -0,0 +1,56 @@
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/nxp,pca9541.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP PCA9541 I2C bus master selector
maintainers:
- Peter Rosin <peda@axentia.se>
properties:
compatible:
const: nxp,pca9541
reg:
maxItems: 1
i2c-arb:
type: object
$ref: /schemas/i2c/i2c-controller.yaml
unevaluatedProperties: false
description:
I2C arbitration bus node.
required:
- compatible
- reg
- i2c-arb
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
i2c-arbitrator@74 {
compatible = "nxp,pca9541";
reg = <0x74>;
i2c-arb {
#address-cells = <1>;
#size-cells = <0>;
eeprom@54 {
compatible = "atmel,24c08";
reg = <0x54>;
};
};
};
};

2
drivers/i2c/busses/Kconfig
View File

@ -1384,7 +1384,7 @@ config I2C_ICY
config I2C_MLXCPLD
tristate "Mellanox I2C driver"
depends on X86_64 || COMPILE_TEST
depends on X86_64 || ARM64 || COMPILE_TEST
help
This exposes the Mellanox platform I2C busses to the linux I2C layer
for X86 based systems.

11
drivers/i2c/busses/i2c-ali15x3.c
View File

@ -165,14 +165,15 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev)
}
if(force_addr) {
int ret;
dev_info(&ALI15X3_dev->dev, "forcing ISA address 0x%04X\n",
ali15x3_smba);
if (PCIBIOS_SUCCESSFUL != pci_write_config_word(ALI15X3_dev,
SMBBA,
ali15x3_smba))
ret = pci_write_config_word(ALI15X3_dev, SMBBA, ali15x3_smba);
if (ret != PCIBIOS_SUCCESSFUL)
goto error;
if (PCIBIOS_SUCCESSFUL != pci_read_config_word(ALI15X3_dev,
SMBBA, &a))
ret = pci_read_config_word(ALI15X3_dev, SMBBA, &a);
if (ret != PCIBIOS_SUCCESSFUL)
goto error;
if ((a & ~(ALI15X3_SMB_IOSIZE - 1)) != ali15x3_smba) {
/* make sure it works */

18
drivers/i2c/busses/i2c-at91-core.c
View File

@ -19,7 +19,6 @@
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/pinctrl/consumer.h>
@ -207,19 +206,15 @@ static int at91_twi_probe(struct platform_device *pdev)
dev->dev = &pdev->dev;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -ENODEV;
dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
if (IS_ERR(dev->base))
return PTR_ERR(dev->base);
phy_addr = mem->start;
dev->pdata = at91_twi_get_driver_data(pdev);
if (!dev->pdata)
return -ENODEV;
dev->base = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(dev->base))
return PTR_ERR(dev->base);
dev->irq = platform_get_irq(pdev, 0);
if (dev->irq < 0)
return dev->irq;
@ -227,10 +222,9 @@ static int at91_twi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dev);
dev->clk = devm_clk_get(dev->dev, NULL);
if (IS_ERR(dev->clk)) {
dev_err(dev->dev, "no clock defined\n");
return -ENODEV;
}
if (IS_ERR(dev->clk))
return dev_err_probe(dev->dev, PTR_ERR(dev->clk), "no clock defined\n");
clk_prepare_enable(dev->clk);
snprintf(dev->adapter.name, sizeof(dev->adapter.name), "AT91");

7
drivers/i2c/busses/i2c-at91-master.c
View File

@ -23,7 +23,6 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@ -832,7 +831,11 @@ static int at91_init_twi_recovery_gpio(struct platform_device *pdev,
struct i2c_bus_recovery_info *rinfo = &dev->rinfo;
rinfo->pinctrl = devm_pinctrl_get(&pdev->dev);
if (!rinfo->pinctrl || IS_ERR(rinfo->pinctrl)) {
if (!rinfo->pinctrl) {
dev_info(dev->dev, "pinctrl unavailable, bus recovery not supported\n");
return 0;
}
if (IS_ERR(rinfo->pinctrl)) {
dev_info(dev->dev, "can't get pinctrl, bus recovery not supported\n");
return PTR_ERR(rinfo->pinctrl);
}

15
drivers/i2c/busses/i2c-au1550.c
View File

@ -342,7 +342,6 @@ static void i2c_au1550_remove(struct platform_device *pdev)
i2c_au1550_disable(priv);
}
#ifdef CONFIG_PM
static int i2c_au1550_suspend(struct device *dev)
{
struct i2c_au1550_data *priv = dev_get_drvdata(dev);
@ -361,21 +360,13 @@ static int i2c_au1550_resume(struct device *dev)
return 0;
}
static const struct dev_pm_ops i2c_au1550_pmops = {
.suspend = i2c_au1550_suspend,
.resume = i2c_au1550_resume,
};
#define AU1XPSC_SMBUS_PMOPS (&i2c_au1550_pmops)
#else
#define AU1XPSC_SMBUS_PMOPS NULL
#endif
static DEFINE_SIMPLE_DEV_PM_OPS(i2c_au1550_pmops,
i2c_au1550_suspend, i2c_au1550_resume);
static struct platform_driver au1xpsc_smbus_driver = {
.driver = {
.name = "au1xpsc_smbus",
.pm = AU1XPSC_SMBUS_PMOPS,
.pm = pm_sleep_ptr(&i2c_au1550_pmops),
},
.probe = i2c_au1550_probe,
.remove_new = i2c_au1550_remove,

20
drivers/i2c/busses/i2c-bcm-iproc.c
View File

@ -7,7 +7,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@ -1029,7 +1029,6 @@ static int bcm_iproc_i2c_probe(struct platform_device *pdev)
int irq, ret = 0;
struct bcm_iproc_i2c_dev *iproc_i2c;
struct i2c_adapter *adap;
struct resource *res;
iproc_i2c = devm_kzalloc(&pdev->dev, sizeof(*iproc_i2c),
GFP_KERNEL);
@ -1042,15 +1041,12 @@ static int bcm_iproc_i2c_probe(struct platform_device *pdev)
(enum bcm_iproc_i2c_type)of_device_get_match_data(&pdev->dev);
init_completion(&iproc_i2c->done);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
iproc_i2c->base = devm_ioremap_resource(iproc_i2c->device, res);
iproc_i2c->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(iproc_i2c->base))
return PTR_ERR(iproc_i2c->base);
if (iproc_i2c->type == IPROC_I2C_NIC) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
iproc_i2c->idm_base = devm_ioremap_resource(iproc_i2c->device,
res);
iproc_i2c->idm_base = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(iproc_i2c->idm_base))
return PTR_ERR(iproc_i2c->idm_base);
@ -1128,8 +1124,6 @@ static void bcm_iproc_i2c_remove(struct platform_device *pdev)
bcm_iproc_i2c_enable_disable(iproc_i2c, false);
}
#ifdef CONFIG_PM_SLEEP
static int bcm_iproc_i2c_suspend(struct device *dev)
{
struct bcm_iproc_i2c_dev *iproc_i2c = dev_get_drvdata(dev);
@ -1180,12 +1174,6 @@ static const struct dev_pm_ops bcm_iproc_i2c_pm_ops = {
.resume_early = &bcm_iproc_i2c_resume
};
#define BCM_IPROC_I2C_PM_OPS (&bcm_iproc_i2c_pm_ops)
#else
#define BCM_IPROC_I2C_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static int bcm_iproc_i2c_reg_slave(struct i2c_client *slave)
{
struct bcm_iproc_i2c_dev *iproc_i2c = i2c_get_adapdata(slave->adapter);
@ -1258,7 +1246,7 @@ static struct platform_driver bcm_iproc_i2c_driver = {
.driver = {
.name = "bcm-iproc-i2c",
.of_match_table = bcm_iproc_i2c_of_match,
.pm = BCM_IPROC_I2C_PM_OPS,
.pm = pm_sleep_ptr(&bcm_iproc_i2c_pm_ops),
},
.probe = bcm_iproc_i2c_probe,
.remove_new = bcm_iproc_i2c_remove,

16
drivers/i2c/busses/i2c-bcm2835.c
View File

@ -12,7 +12,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@ -430,10 +430,9 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
i2c_dev->bus_clk = bcm2835_i2c_register_div(&pdev->dev, mclk, i2c_dev);
if (IS_ERR(i2c_dev->bus_clk)) {
dev_err(&pdev->dev, "Could not register clock\n");
return PTR_ERR(i2c_dev->bus_clk);
}
if (IS_ERR(i2c_dev->bus_clk))
return dev_err_probe(&pdev->dev, PTR_ERR(i2c_dev->bus_clk),
"Could not register clock\n");
ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency",
&bus_clk_rate);
@ -444,10 +443,9 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
}
ret = clk_set_rate_exclusive(i2c_dev->bus_clk, bus_clk_rate);
if (ret < 0) {
dev_err(&pdev->dev, "Could not set clock frequency\n");
return ret;
}
if (ret < 0)
return dev_err_probe(&pdev->dev, ret,
"Could not set clock frequency\n");
ret = clk_prepare_enable(i2c_dev->bus_clk);
if (ret) {

27
drivers/i2c/busses/i2c-brcmstb.c
View File

@ -594,11 +594,10 @@ static int bcm2711_release_bsc(struct brcmstb_i2c_dev *dev)
static int brcmstb_i2c_probe(struct platform_device *pdev)
{
int rc = 0;
struct brcmstb_i2c_dev *dev;
struct i2c_adapter *adap;
struct resource *iomem;
const char *int_name;
int rc;
/* Allocate memory for private data structure */
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
@ -614,18 +613,15 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
init_completion(&dev->done);
/* Map hardware registers */
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dev->base = devm_ioremap_resource(dev->device, iomem);
if (IS_ERR(dev->base)) {
rc = -ENOMEM;
goto probe_errorout;
}
dev->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(dev->base))
return PTR_ERR(dev->base);
if (of_device_is_compatible(dev->device->of_node,
"brcm,bcm2711-hdmi-i2c")) {
rc = bcm2711_release_bsc(dev);
if (rc)
goto probe_errorout;
return rc;
}
rc = of_property_read_string(dev->device->of_node, "interrupt-names",
@ -678,16 +674,13 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
adap->dev.of_node = pdev->dev.of_node;
rc = i2c_add_adapter(adap);
if (rc)
goto probe_errorout;
return rc;
dev_info(dev->device, "%s@%dhz registered in %s mode\n",
int_name ? int_name : " ", dev->clk_freq_hz,
(dev->irq >= 0) ? "interrupt" : "polling");
return 0;
probe_errorout:
return rc;
}
static void brcmstb_i2c_remove(struct platform_device *pdev)
@ -697,7 +690,6 @@ static void brcmstb_i2c_remove(struct platform_device *pdev)
i2c_del_adapter(&dev->adapter);
}
#ifdef CONFIG_PM_SLEEP
static int brcmstb_i2c_suspend(struct device *dev)
{
struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
@ -715,10 +707,9 @@ static int brcmstb_i2c_resume(struct device *dev)
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend,
brcmstb_i2c_resume);
static DEFINE_SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend,
brcmstb_i2c_resume);
static const struct of_device_id brcmstb_i2c_of_match[] = {
{.compatible = "brcm,brcmstb-i2c"},
@ -732,7 +723,7 @@ static struct platform_driver brcmstb_i2c_driver = {
.driver = {
.name = "brcmstb-i2c",
.of_match_table = brcmstb_i2c_of_match,
.pm = &brcmstb_i2c_pm,
.pm = pm_sleep_ptr(&brcmstb_i2c_pm),
},
.probe = brcmstb_i2c_probe,
.remove_new = brcmstb_i2c_remove,

4
drivers/i2c/busses/i2c-cpm.c
View File

@ -26,10 +26,10 @@
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <sysdev/fsl_soc.h>
#include <asm/cpm.h>

16
drivers/i2c/busses/i2c-davinci.c
View File

@ -25,7 +25,7 @@
#include <linux/slab.h>
#include <linux/cpufreq.h>
#include <linux/gpio/consumer.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_data/i2c-davinci.h>
#include <linux/pm_runtime.h>
@ -765,7 +765,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return dev_err_probe(&pdev->dev, irq, "can't get irq resource\n");
return irq;
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
@ -902,7 +902,6 @@ static void davinci_i2c_remove(struct platform_device *pdev)
pm_runtime_disable(dev->dev);
}
#ifdef CONFIG_PM
static int davinci_i2c_suspend(struct device *dev)
{
struct davinci_i2c_dev *i2c_dev = dev_get_drvdata(dev);
@ -926,15 +925,10 @@ static int davinci_i2c_resume(struct device *dev)
static const struct dev_pm_ops davinci_i2c_pm = {
.suspend = davinci_i2c_suspend,
.resume = davinci_i2c_resume,
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
#define davinci_i2c_pm_ops (&davinci_i2c_pm)
#else
#define davinci_i2c_pm_ops NULL
#endif
static const struct platform_device_id davinci_i2c_driver_ids[] = {
{ .name = "i2c_davinci", },
{ /* sentinel */ }
@ -947,7 +941,7 @@ static struct platform_driver davinci_i2c_driver = {
.id_table = davinci_i2c_driver_ids,
.driver = {
.name = "i2c_davinci",
.pm = davinci_i2c_pm_ops,
.pm = pm_sleep_ptr(&davinci_i2c_pm),
.of_match_table = davinci_i2c_of_match,
},
};

12
drivers/i2c/busses/i2c-designware-master.c
View File

@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>
@ -917,6 +918,17 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
return PTR_ERR(gpio);
rinfo->sda_gpiod = gpio;
rinfo->pinctrl = devm_pinctrl_get(dev->dev);
if (IS_ERR(rinfo->pinctrl)) {
if (PTR_ERR(rinfo->pinctrl) == -EPROBE_DEFER)
return PTR_ERR(rinfo->pinctrl);
rinfo->pinctrl = NULL;
dev_err(dev->dev, "getting pinctrl info failed: bus recovery might not work\n");
} else if (!rinfo->pinctrl) {
dev_dbg(dev->dev, "pinctrl is disabled, bus recovery might not work\n");
}
rinfo->recover_bus = i2c_generic_scl_recovery;
rinfo->prepare_recovery = i2c_dw_prepare_recovery;
rinfo->unprepare_recovery = i2c_dw_unprepare_recovery;

22
drivers/i2c/busses/i2c-designware-platdrv.c
View File

@ -418,7 +418,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev)
reset_control_assert(dev->rst);
}
#ifdef CONFIG_PM_SLEEP
static int dw_i2c_plat_prepare(struct device *dev)
{
/*
@ -429,11 +428,7 @@ static int dw_i2c_plat_prepare(struct device *dev)
*/
return !has_acpi_companion(dev);
}
#else
#define dw_i2c_plat_prepare NULL
#endif
#ifdef CONFIG_PM
static int dw_i2c_plat_runtime_suspend(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
@ -447,7 +442,7 @@ static int dw_i2c_plat_runtime_suspend(struct device *dev)
return 0;
}
static int __maybe_unused dw_i2c_plat_suspend(struct device *dev)
static int dw_i2c_plat_suspend(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
@ -468,7 +463,7 @@ static int dw_i2c_plat_runtime_resume(struct device *dev)
return 0;
}
static int __maybe_unused dw_i2c_plat_resume(struct device *dev)
static int dw_i2c_plat_resume(struct device *dev)
{
struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
@ -479,16 +474,11 @@ static int __maybe_unused dw_i2c_plat_resume(struct device *dev)
}
static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
.prepare = dw_i2c_plat_prepare,
SET_LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL)
.prepare = pm_sleep_ptr(dw_i2c_plat_prepare),
LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL)
};
#define DW_I2C_DEV_PMOPS (&dw_i2c_dev_pm_ops)
#else
#define DW_I2C_DEV_PMOPS NULL
#endif
/* Work with hotplug and coldplug */
MODULE_ALIAS("platform:i2c_designware");
@ -499,7 +489,7 @@ static struct platform_driver dw_i2c_driver = {
.name = "i2c_designware",
.of_match_table = of_match_ptr(dw_i2c_of_match),
.acpi_match_table = ACPI_PTR(dw_i2c_acpi_match),
.pm = DW_I2C_DEV_PMOPS,
.pm = pm_ptr(&dw_i2c_dev_pm_ops),
},
};

6
drivers/i2c/busses/i2c-dln2.c
View File

@ -218,10 +218,8 @@ static int dln2_i2c_probe(struct platform_device *pdev)
/* initialize the i2c interface */
ret = dln2_i2c_enable(dln2, true);
if (ret < 0) {
dev_err(dev, "failed to initialize adapter: %d\n", ret);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "failed to initialize adapter\n");
/* and finally attach to i2c layer */
ret = i2c_add_adapter(&dln2->adapter);

2
drivers/i2c/busses/i2c-emev2.c
View File

@ -16,7 +16,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/sched.h>

12
drivers/i2c/busses/i2c-exynos5.c
View File

@ -18,9 +18,7 @@
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of.h>
#include <linux/spinlock.h>
/*
@ -892,7 +890,6 @@ static void exynos5_i2c_remove(struct platform_device *pdev)
clk_unprepare(i2c->pclk);
}
#ifdef CONFIG_PM_SLEEP
static int exynos5_i2c_suspend_noirq(struct device *dev)
{
struct exynos5_i2c *i2c = dev_get_drvdata(dev);
@ -934,11 +931,10 @@ static int exynos5_i2c_resume_noirq(struct device *dev)
clk_disable_unprepare(i2c->pclk);
return ret;
}
#endif
static const struct dev_pm_ops exynos5_i2c_dev_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
exynos5_i2c_resume_noirq)
NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
exynos5_i2c_resume_noirq)
};
static struct platform_driver exynos5_i2c_driver = {
@ -946,7 +942,7 @@ static struct platform_driver exynos5_i2c_driver = {
.remove_new = exynos5_i2c_remove,
.driver = {
.name = "exynos5-hsi2c",
.pm = &exynos5_i2c_dev_pm_ops,
.pm = pm_sleep_ptr(&exynos5_i2c_dev_pm_ops),
.of_match_table = exynos5_i2c_match,
},
};

3
drivers/i2c/busses/i2c-gxp.c
View File

@ -4,8 +4,9 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>

12
drivers/i2c/busses/i2c-hisi.c
View File

@ -470,18 +470,14 @@ static int hisi_i2c_probe(struct platform_device *pdev)
hisi_i2c_disable_int(ctlr, HISI_I2C_INT_ALL);
ret = devm_request_irq(dev, ctlr->irq, hisi_i2c_irq, 0, "hisi-i2c", ctlr);
if (ret) {
dev_err(dev, "failed to request irq handler, ret = %d\n", ret);
return ret;
}
if (ret)
return dev_err_probe(dev, ret, "failed to request irq handler\n");
ctlr->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
if (IS_ERR_OR_NULL(ctlr->clk)) {
ret = device_property_read_u64(dev, "clk_rate", &clk_rate_hz);
if (ret) {
dev_err(dev, "failed to get clock frequency, ret = %d\n", ret);
return ret;
}
if (ret)
return dev_err_probe(dev, ret, "failed to get clock frequency\n");
} else {
clk_rate_hz = clk_get_rate(ctlr->clk);
}

10
drivers/i2c/busses/i2c-hix5hd2.c
View File

@ -475,7 +475,6 @@ static void hix5hd2_i2c_remove(struct platform_device *pdev)
pm_runtime_set_suspended(priv->dev);
}
#ifdef CONFIG_PM
static int hix5hd2_i2c_runtime_suspend(struct device *dev)
{
struct hix5hd2_i2c_priv *priv = dev_get_drvdata(dev);
@ -494,12 +493,11 @@ static int hix5hd2_i2c_runtime_resume(struct device *dev)
return 0;
}
#endif
static const struct dev_pm_ops hix5hd2_i2c_pm_ops = {
SET_RUNTIME_PM_OPS(hix5hd2_i2c_runtime_suspend,
hix5hd2_i2c_runtime_resume,
NULL)
RUNTIME_PM_OPS(hix5hd2_i2c_runtime_suspend,
hix5hd2_i2c_runtime_resume,
NULL)
};
static const struct of_device_id hix5hd2_i2c_match[] = {
@ -513,7 +511,7 @@ static struct platform_driver hix5hd2_i2c_driver = {
.remove_new = hix5hd2_i2c_remove,
.driver = {
.name = "hix5hd2-i2c",
.pm = &hix5hd2_i2c_pm_ops,
.pm = pm_ptr(&hix5hd2_i2c_pm_ops),
.of_match_table = hix5hd2_i2c_match,
},
};

6
drivers/i2c/busses/i2c-i801.c
View File

@ -1808,7 +1808,6 @@ static void i801_shutdown(struct pci_dev *dev)
pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
}
#ifdef CONFIG_PM_SLEEP
static int i801_suspend(struct device *dev)
{
struct i801_priv *priv = dev_get_drvdata(dev);
@ -1827,9 +1826,8 @@ static int i801_resume(struct device *dev)
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(i801_pm_ops, i801_suspend, i801_resume);
static DEFINE_SIMPLE_DEV_PM_OPS(i801_pm_ops, i801_suspend, i801_resume);
static struct pci_driver i801_driver = {
.name = DRV_NAME,
@ -1838,7 +1836,7 @@ static struct pci_driver i801_driver = {
.remove = i801_remove,
.shutdown = i801_shutdown,
.driver = {
.pm = &i801_pm_ops,
.pm = pm_sleep_ptr(&i801_pm_ops),
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};

3
drivers/i2c/busses/i2c-ibm_iic.c
View File

@ -37,9 +37,10 @@
#include <asm/irq.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include "i2c-ibm_iic.h"

10
drivers/i2c/busses/i2c-img-scb.c
View File

@ -1454,7 +1454,6 @@ static int img_i2c_runtime_resume(struct device *dev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int img_i2c_suspend(struct device *dev)
{
struct img_i2c *i2c = dev_get_drvdata(dev);
@ -1482,13 +1481,10 @@ static int img_i2c_resume(struct device *dev)
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops img_i2c_pm = {
SET_RUNTIME_PM_OPS(img_i2c_runtime_suspend,
img_i2c_runtime_resume,
NULL)
SET_SYSTEM_SLEEP_PM_OPS(img_i2c_suspend, img_i2c_resume)
RUNTIME_PM_OPS(img_i2c_runtime_suspend, img_i2c_runtime_resume, NULL)
SYSTEM_SLEEP_PM_OPS(img_i2c_suspend, img_i2c_resume)
};
static const struct of_device_id img_scb_i2c_match[] = {
@ -1501,7 +1497,7 @@ static struct platform_driver img_scb_i2c_driver = {
.driver = {
.name = "img-i2c-scb",
.of_match_table = img_scb_i2c_match,
.pm = &img_i2c_pm,
.pm = pm_ptr(&img_i2c_pm),
},
.probe = img_i2c_probe,
.remove_new = img_i2c_remove,

23
drivers/i2c/busses/i2c-imx-lpi2c.c
View File

@ -17,7 +17,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@ -517,14 +516,12 @@ static irqreturn_t lpi2c_imx_isr(int irq, void *dev_id)
temp = readl(lpi2c_imx->base + LPI2C_MSR);
temp &= enabled;
if (temp & MSR_RDF)
lpi2c_imx_read_rxfifo(lpi2c_imx);
if (temp & MSR_TDF)
lpi2c_imx_write_txfifo(lpi2c_imx);
if (temp & MSR_NDF)
complete(&lpi2c_imx->complete);
else if (temp & MSR_RDF)
lpi2c_imx_read_rxfifo(lpi2c_imx);
else if (temp & MSR_TDF)
lpi2c_imx_write_txfifo(lpi2c_imx);
return IRQ_HANDLED;
}
@ -572,10 +569,8 @@ static int lpi2c_imx_probe(struct platform_device *pdev)
sizeof(lpi2c_imx->adapter.name));
ret = devm_clk_bulk_get_all(&pdev->dev, &lpi2c_imx->clks);
if (ret < 0) {
dev_err(&pdev->dev, "can't get I2C peripheral clock, ret=%d\n", ret);
return ret;
}
if (ret < 0)
return dev_err_probe(&pdev->dev, ret, "can't get I2C peripheral clock\n");
lpi2c_imx->num_clks = ret;
ret = of_property_read_u32(pdev->dev.of_node,
@ -585,10 +580,8 @@ static int lpi2c_imx_probe(struct platform_device *pdev)
ret = devm_request_irq(&pdev->dev, irq, lpi2c_imx_isr, 0,
pdev->name, lpi2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", irq);
return ret;
}
if (ret)
return dev_err_probe(&pdev->dev, ret, "can't claim irq %d\n", irq);
i2c_set_adapdata(&lpi2c_imx->adapter, lpi2c_imx);
platform_set_drvdata(pdev, lpi2c_imx);

10
drivers/i2c/busses/i2c-imx.c
View File

@ -41,7 +41,6 @@
#include <linux/hrtimer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_dma.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_data/i2c-imx.h>
@ -1389,7 +1388,11 @@ static int i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,
struct i2c_bus_recovery_info *rinfo = &i2c_imx->rinfo;
i2c_imx->pinctrl = devm_pinctrl_get(&pdev->dev);
if (!i2c_imx->pinctrl || IS_ERR(i2c_imx->pinctrl)) {
if (!i2c_imx->pinctrl) {
dev_info(&pdev->dev, "pinctrl unavailable, bus recovery not supported\n");
return 0;
}
if (IS_ERR(i2c_imx->pinctrl)) {
dev_info(&pdev->dev, "can't get pinctrl, bus recovery not supported\n");
return PTR_ERR(i2c_imx->pinctrl);
}
@ -1506,8 +1509,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
goto rpm_disable;
/* Request IRQ */
ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
pdev->name, i2c_imx);
ret = request_irq(irq, i2c_imx_isr, IRQF_SHARED, pdev->name, i2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", irq);
goto rpm_disable;

2
drivers/i2c/busses/i2c-jz4780.c
View File

@ -18,7 +18,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/slab.h>

19
drivers/i2c/busses/i2c-kempld.c
View File

@ -350,10 +350,9 @@ static void kempld_i2c_remove(struct platform_device *pdev)
i2c_del_adapter(&i2c->adap);
}
#ifdef CONFIG_PM
static int kempld_i2c_suspend(struct platform_device *pdev, pm_message_t state)
static int kempld_i2c_suspend(struct device *dev)
{
struct kempld_i2c_data *i2c = platform_get_drvdata(pdev);
struct kempld_i2c_data *i2c = dev_get_drvdata(dev);
struct kempld_device_data *pld = i2c->pld;
u8 ctrl;
@ -366,9 +365,9 @@ static int kempld_i2c_suspend(struct platform_device *pdev, pm_message_t state)
return 0;
}
static int kempld_i2c_resume(struct platform_device *pdev)
static int kempld_i2c_resume(struct device *dev)
{
struct kempld_i2c_data *i2c = platform_get_drvdata(pdev);
struct kempld_i2c_data *i2c = dev_get_drvdata(dev);
struct kempld_device_data *pld = i2c->pld;
kempld_get_mutex(pld);
@ -377,19 +376,17 @@ static int kempld_i2c_resume(struct platform_device *pdev)
return 0;
}
#else
#define kempld_i2c_suspend NULL
#define kempld_i2c_resume NULL
#endif
static DEFINE_SIMPLE_DEV_PM_OPS(kempld_i2c_pm_ops,
kempld_i2c_suspend, kempld_i2c_resume);
static struct platform_driver kempld_i2c_driver = {
.driver = {
.name = "kempld-i2c",
.pm = pm_sleep_ptr(&kempld_i2c_pm_ops),
},
.probe = kempld_i2c_probe,
.remove_new = kempld_i2c_remove,
.suspend = kempld_i2c_suspend,
.resume = kempld_i2c_resume,
};
module_platform_driver(kempld_i2c_driver);

9
drivers/i2c/busses/i2c-lpc2k.c
View File

@ -20,7 +20,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/time.h>
@ -431,7 +430,6 @@ static void i2c_lpc2k_remove(struct platform_device *dev)
i2c_del_adapter(&i2c->adap);
}
#ifdef CONFIG_PM
static int i2c_lpc2k_suspend(struct device *dev)
{
struct lpc2k_i2c *i2c = dev_get_drvdata(dev);
@ -456,11 +454,6 @@ static const struct dev_pm_ops i2c_lpc2k_dev_pm_ops = {
.resume_noirq = i2c_lpc2k_resume,
};
#define I2C_LPC2K_DEV_PM_OPS (&i2c_lpc2k_dev_pm_ops)
#else
#define I2C_LPC2K_DEV_PM_OPS NULL
#endif
static const struct of_device_id lpc2k_i2c_match[] = {
{ .compatible = "nxp,lpc1788-i2c" },
{},
@ -472,7 +465,7 @@ static struct platform_driver i2c_lpc2k_driver = {
.remove_new = i2c_lpc2k_remove,
.driver = {
.name = "lpc2k-i2c",
.pm = I2C_LPC2K_DEV_PM_OPS,
.pm = pm_sleep_ptr(&i2c_lpc2k_dev_pm_ops),
.of_match_table = lpc2k_i2c_match,
},
};

1
drivers/i2c/busses/i2c-meson.c
View File

@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/types.h>

5
drivers/i2c/busses/i2c-microchip-corei2c.c
View File

@ -378,9 +378,8 @@ static int mchp_corei2c_probe(struct platform_device *pdev)
return PTR_ERR(idev->base);
irq = platform_get_irq(pdev, 0);
if (irq <= 0)
return dev_err_probe(&pdev->dev, -ENXIO,
"invalid IRQ %d for I2C controller\n", irq);
if (irq < 0)
return irq;
idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(idev->i2c_clk))

60
drivers/i2c/busses/i2c-mlxbf.c
View File

@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/string.h>
@ -1080,13 +1080,7 @@ static int mlxbf_i2c_init_resource(struct platform_device *pdev,
if (!tmp_res)
return -ENOMEM;
tmp_res->params = platform_get_resource(pdev, IORESOURCE_MEM, type);
if (!tmp_res->params) {
devm_kfree(dev, tmp_res);
return -EIO;
}
tmp_res->io = devm_ioremap_resource(dev, tmp_res->params);
tmp_res->io = devm_platform_get_and_ioremap_resource(pdev, type, &tmp_res->params);
if (IS_ERR(tmp_res->io)) {
devm_kfree(dev, tmp_res);
return PTR_ERR(tmp_res->io);
@ -2323,10 +2317,8 @@ static int mlxbf_i2c_probe(struct platform_device *pdev)
ret = mlxbf_i2c_init_resource(pdev, &priv->smbus,
MLXBF_I2C_SMBUS_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch smbus resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch smbus resource info");
priv->timer->io = priv->smbus->io;
priv->mst->io = priv->smbus->io + MLXBF_I2C_MST_ADDR_OFFSET;
@ -2334,39 +2326,29 @@ static int mlxbf_i2c_probe(struct platform_device *pdev)
} else {
ret = mlxbf_i2c_init_resource(pdev, &priv->timer,
MLXBF_I2C_SMBUS_TIMER_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch timer resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch timer resource info");
ret = mlxbf_i2c_init_resource(pdev, &priv->mst,
MLXBF_I2C_SMBUS_MST_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch master resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch master resource info");
ret = mlxbf_i2c_init_resource(pdev, &priv->slv,
MLXBF_I2C_SMBUS_SLV_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch slave resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch slave resource info");
}
ret = mlxbf_i2c_init_resource(pdev, &priv->mst_cause,
MLXBF_I2C_MST_CAUSE_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch cause master resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch cause master resource info");
ret = mlxbf_i2c_init_resource(pdev, &priv->slv_cause,
MLXBF_I2C_SLV_CAUSE_RES);
if (ret < 0) {
dev_err(dev, "Cannot fetch cause slave resource info");
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot fetch cause slave resource info");
adap = &priv->adap;
adap->owner = THIS_MODULE;
@ -2397,11 +2379,9 @@ static int mlxbf_i2c_probe(struct platform_device *pdev)
* does not really hurt, then keep the code as is.
*/
ret = mlxbf_i2c_init_master(pdev, priv);
if (ret < 0) {
dev_err(dev, "failed to initialize smbus master %d",
priv->bus);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "failed to initialize smbus master %d",
priv->bus);
mlxbf_i2c_init_timings(pdev, priv);
@ -2413,10 +2393,8 @@ static int mlxbf_i2c_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, irq, mlxbf_i2c_irq,
IRQF_SHARED | IRQF_PROBE_SHARED,
dev_name(dev), priv);
if (ret < 0) {
dev_err(dev, "Cannot get irq %d\n", irq);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "Cannot get irq %d\n", irq);
priv->irq = irq;

10
drivers/i2c/busses/i2c-mlxcpld.c
View File

@ -22,6 +22,7 @@
#define MLXCPLD_I2C_BUS_NUM 1
#define MLXCPLD_I2C_DATA_REG_SZ 36
#define MLXCPLD_I2C_DATA_SZ_BIT BIT(5)
#define MLXCPLD_I2C_DATA_EXT2_SZ_BIT BIT(6)
#define MLXCPLD_I2C_DATA_SZ_MASK GENMASK(6, 5)
#define MLXCPLD_I2C_SMBUS_BLK_BIT BIT(7)
#define MLXCPLD_I2C_MAX_ADDR_LEN 4
@ -466,6 +467,13 @@ static const struct i2c_adapter_quirks mlxcpld_i2c_quirks_ext = {
.max_comb_1st_msg_len = 4,
};
static const struct i2c_adapter_quirks mlxcpld_i2c_quirks_ext2 = {
.flags = I2C_AQ_COMB_WRITE_THEN_READ,
.max_read_len = (MLXCPLD_I2C_DATA_REG_SZ - 4) * 4,
.max_write_len = (MLXCPLD_I2C_DATA_REG_SZ - 4) * 4 + MLXCPLD_I2C_MAX_ADDR_LEN,
.max_comb_1st_msg_len = 4,
};
static struct i2c_adapter mlxcpld_i2c_adapter = {
.owner = THIS_MODULE,
.name = "i2c-mlxcpld",
@ -547,6 +555,8 @@ static int mlxcpld_i2c_probe(struct platform_device *pdev)
/* Check support for extended transaction length */
if ((val & MLXCPLD_I2C_DATA_SZ_MASK) == MLXCPLD_I2C_DATA_SZ_BIT)
mlxcpld_i2c_adapter.quirks = &mlxcpld_i2c_quirks_ext;
else if ((val & MLXCPLD_I2C_DATA_SZ_MASK) == MLXCPLD_I2C_DATA_EXT2_SZ_BIT)
mlxcpld_i2c_adapter.quirks = &mlxcpld_i2c_quirks_ext2;
/* Check support for smbus block transaction */
if (val & MLXCPLD_I2C_SMBUS_BLK_BIT)
priv->smbus_block = true;

3
drivers/i2c/busses/i2c-mpc.c
View File

@ -11,9 +11,10 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched/signal.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/slab.h>

12
drivers/i2c/busses/i2c-mt65xx.c
View File

@ -19,9 +19,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/scatterlist.h>
#include <linux/sched.h>
@ -1514,7 +1512,6 @@ static void mtk_i2c_remove(struct platform_device *pdev)
clk_bulk_unprepare(I2C_MT65XX_CLK_MAX, i2c->clocks);
}
#ifdef CONFIG_PM_SLEEP
static int mtk_i2c_suspend_noirq(struct device *dev)
{
struct mtk_i2c *i2c = dev_get_drvdata(dev);
@ -1544,11 +1541,10 @@ static int mtk_i2c_resume_noirq(struct device *dev)
return 0;
}
#endif
static const struct dev_pm_ops mtk_i2c_pm = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_i2c_suspend_noirq,
mtk_i2c_resume_noirq)
NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_i2c_suspend_noirq,
mtk_i2c_resume_noirq)
};
static struct platform_driver mtk_i2c_driver = {
@ -1556,7 +1552,7 @@ static struct platform_driver mtk_i2c_driver = {
.remove_new = mtk_i2c_remove,
.driver = {
.name = I2C_DRV_NAME,
.pm = &mtk_i2c_pm,
.pm = pm_sleep_ptr(&mtk_i2c_pm),
.of_match_table = mtk_i2c_of_match,
},
};

3
drivers/i2c/busses/i2c-mt7621.c
View File

@ -16,7 +16,8 @@
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#define REG_SM0CFG2_REG 0x28

1
drivers/i2c/busses/i2c-mxs.c
View File

@ -22,7 +22,6 @@
#include <linux/io.h>
#include <linux/stmp_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/dma/mxs-dma.h>

4
drivers/i2c/busses/i2c-nforce2.c
View File

@ -327,8 +327,8 @@ static int nforce2_probe_smb(struct pci_dev *dev, int bar, int alt_reg,
/* Older incarnations of the device used non-standard BARs */
u16 iobase;
if (pci_read_config_word(dev, alt_reg, &iobase)
!= PCIBIOS_SUCCESSFUL) {
error = pci_read_config_word(dev, alt_reg, &iobase);
if (error != PCIBIOS_SUCCESSFUL) {
dev_err(&dev->dev, "Error reading PCI config for %s\n",
name);
return -EIO;

12
drivers/i2c/busses/i2c-nomadik.c
View File

@ -873,7 +873,6 @@ static irqreturn_t i2c_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
#ifdef CONFIG_PM_SLEEP
static int nmk_i2c_suspend_late(struct device *dev)
{
int ret;
@ -890,9 +889,7 @@ static int nmk_i2c_resume_early(struct device *dev)
{
return pm_runtime_force_resume(dev);
}
#endif
#ifdef CONFIG_PM
static int nmk_i2c_runtime_suspend(struct device *dev)
{
struct amba_device *adev = to_amba_device(dev);
@ -925,13 +922,10 @@ static int nmk_i2c_runtime_resume(struct device *dev)
return ret;
}
#endif
static const struct dev_pm_ops nmk_i2c_pm = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(nmk_i2c_suspend_late, nmk_i2c_resume_early)
SET_RUNTIME_PM_OPS(nmk_i2c_runtime_suspend,
nmk_i2c_runtime_resume,
NULL)
LATE_SYSTEM_SLEEP_PM_OPS(nmk_i2c_suspend_late, nmk_i2c_resume_early)
RUNTIME_PM_OPS(nmk_i2c_runtime_suspend, nmk_i2c_runtime_resume, NULL)
};
static unsigned int nmk_i2c_functionality(struct i2c_adapter *adap)
@ -1078,7 +1072,7 @@ static struct amba_driver nmk_i2c_driver = {
.drv = {
.owner = THIS_MODULE,
.name = DRIVER_NAME,
.pm = &nmk_i2c_pm,
.pm = pm_ptr(&nmk_i2c_pm),
},
.id_table = nmk_i2c_ids,
.probe = nmk_i2c_probe,

1
drivers/i2c/busses/i2c-npcm7xx.c
View File

@ -17,7 +17,6 @@
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>

10
drivers/i2c/busses/i2c-ocores.c
View File

@ -743,7 +743,6 @@ static void ocores_i2c_remove(struct platform_device *pdev)
i2c_del_adapter(&i2c->adap);
}
#ifdef CONFIG_PM_SLEEP
static int ocores_i2c_suspend(struct device *dev)
{
struct ocores_i2c *i2c = dev_get_drvdata(dev);
@ -772,11 +771,8 @@ static int ocores_i2c_resume(struct device *dev)
return ocores_init(dev, i2c);
}
static SIMPLE_DEV_PM_OPS(ocores_i2c_pm, ocores_i2c_suspend, ocores_i2c_resume);
#define OCORES_I2C_PM (&ocores_i2c_pm)
#else
#define OCORES_I2C_PM NULL
#endif
static DEFINE_SIMPLE_DEV_PM_OPS(ocores_i2c_pm,
ocores_i2c_suspend, ocores_i2c_resume);
static struct platform_driver ocores_i2c_driver = {
.probe = ocores_i2c_probe,
@ -784,7 +780,7 @@ static struct platform_driver ocores_i2c_driver = {
.driver = {
.name = "ocores-i2c",
.of_match_table = ocores_i2c_match,
.pm = OCORES_I2C_PM,
.pm = pm_sleep_ptr(&ocores_i2c_pm),
},
};

3
drivers/i2c/busses/i2c-owl.c
View File

@ -16,7 +16,8 @@
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
/* I2C registers */
#define OWL_I2C_REG_CTL 0x0000

1
drivers/i2c/busses/i2c-pca-platform.c
View File

@ -22,7 +22,6 @@
#include <linux/gpio/consumer.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/irq.h>

15
drivers/i2c/busses/i2c-pnx.c
View File

@ -613,7 +613,6 @@ static const struct i2c_algorithm pnx_algorithm = {
.functionality = i2c_pnx_func,
};
#ifdef CONFIG_PM_SLEEP
static int i2c_pnx_controller_suspend(struct device *dev)
{
struct i2c_pnx_algo_data *alg_data = dev_get_drvdata(dev);
@ -630,12 +629,9 @@ static int i2c_pnx_controller_resume(struct device *dev)
return clk_prepare_enable(alg_data->clk);
}
static SIMPLE_DEV_PM_OPS(i2c_pnx_pm,
i2c_pnx_controller_suspend, i2c_pnx_controller_resume);
#define PNX_I2C_PM (&i2c_pnx_pm)
#else
#define PNX_I2C_PM NULL
#endif
static DEFINE_SIMPLE_DEV_PM_OPS(i2c_pnx_pm,
i2c_pnx_controller_suspend,
i2c_pnx_controller_resume);
static int i2c_pnx_probe(struct platform_device *pdev)
{
@ -683,8 +679,7 @@ static int i2c_pnx_probe(struct platform_device *pdev)
"%s", pdev->name);
/* Register I/O resource */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
alg_data->ioaddr = devm_ioremap_resource(&pdev->dev, res);
alg_data->ioaddr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(alg_data->ioaddr))
return PTR_ERR(alg_data->ioaddr);
@ -763,7 +758,7 @@ static struct platform_driver i2c_pnx_driver = {
.driver = {
.name = "pnx-i2c",
.of_match_table = of_match_ptr(i2c_pnx_of_match),
.pm = PNX_I2C_PM,
.pm = pm_sleep_ptr(&i2c_pnx_pm),
},
.probe = i2c_pnx_probe,
.remove_new = i2c_pnx_remove,

1
drivers/i2c/busses/i2c-pxa-pci.c
View File

@ -12,7 +12,6 @@
#include <linux/platform_device.h>
#include <linux/platform_data/i2c-pxa.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
#define CE4100_PCI_I2C_DEVS 3

20
drivers/i2c/busses/i2c-pxa.c
View File

@ -1362,7 +1362,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
struct i2c_pxa_platform_data *plat = dev_get_platdata(&dev->dev);
enum pxa_i2c_types i2c_type;
struct pxa_i2c *i2c;
struct resource *res = NULL;
struct resource *res;
int ret, irq;
i2c = devm_kzalloc(&dev->dev, sizeof(struct pxa_i2c), GFP_KERNEL);
@ -1379,8 +1379,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
i2c->adap.dev.of_node = dev->dev.of_node;
#endif
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
i2c->reg_base = devm_ioremap_resource(&dev->dev, res);
i2c->reg_base = devm_platform_get_and_ioremap_resource(dev, 0, &res);
if (IS_ERR(i2c->reg_base))
return PTR_ERR(i2c->reg_base);
@ -1404,10 +1403,9 @@ static int i2c_pxa_probe(struct platform_device *dev)
strscpy(i2c->adap.name, "pxa_i2c-i2c", sizeof(i2c->adap.name));
i2c->clk = devm_clk_get(&dev->dev, NULL);
if (IS_ERR(i2c->clk)) {
dev_err(&dev->dev, "failed to get the clk: %ld\n", PTR_ERR(i2c->clk));
return PTR_ERR(i2c->clk);
}
if (IS_ERR(i2c->clk))
return dev_err_probe(&dev->dev, PTR_ERR(i2c->clk),
"failed to get the clk\n");
i2c->reg_ibmr = i2c->reg_base + pxa_reg_layout[i2c_type].ibmr;
i2c->reg_idbr = i2c->reg_base + pxa_reg_layout[i2c_type].idbr;
@ -1491,7 +1489,6 @@ static void i2c_pxa_remove(struct platform_device *dev)
clk_disable_unprepare(i2c->clk);
}
#ifdef CONFIG_PM
static int i2c_pxa_suspend_noirq(struct device *dev)
{
struct pxa_i2c *i2c = dev_get_drvdata(dev);
@ -1516,17 +1513,12 @@ static const struct dev_pm_ops i2c_pxa_dev_pm_ops = {
.resume_noirq = i2c_pxa_resume_noirq,
};
#define I2C_PXA_DEV_PM_OPS (&i2c_pxa_dev_pm_ops)
#else
#define I2C_PXA_DEV_PM_OPS NULL
#endif
static struct platform_driver i2c_pxa_driver = {
.probe = i2c_pxa_probe,
.remove_new = i2c_pxa_remove,
.driver = {
.name = "pxa2xx-i2c",
.pm = I2C_PXA_DEV_PM_OPS,
.pm = pm_sleep_ptr(&i2c_pxa_dev_pm_ops),
.of_match_table = i2c_pxa_dt_ids,
},
.id_table = i2c_pxa_id_table,

8
drivers/i2c/busses/i2c-qcom-cci.c
View File

@ -588,10 +588,10 @@ static int cci_probe(struct platform_device *pdev)
/* Clocks */
ret = devm_clk_bulk_get_all(dev, &cci->clocks);
if (ret < 1) {
dev_err(dev, "failed to get clocks %d\n", ret);
return ret;
}
if (ret < 0)
return dev_err_probe(dev, ret, "failed to get clocks\n");
else if (!ret)
return dev_err_probe(dev, -EINVAL, "not enough clocks in DT\n");
cci->nclocks = ret;
/* Retrieve CCI clock rate */

4
drivers/i2c/busses/i2c-qcom-geni.c
View File

@ -767,7 +767,6 @@ static int setup_gpi_dma(struct geni_i2c_dev *gi2c)
static int geni_i2c_probe(struct platform_device *pdev)
{
struct geni_i2c_dev *gi2c;
struct resource *res;
u32 proto, tx_depth, fifo_disable;
int ret;
struct device *dev = &pdev->dev;
@ -779,8 +778,7 @@ static int geni_i2c_probe(struct platform_device *pdev)
gi2c->se.dev = dev;
gi2c->se.wrapper = dev_get_drvdata(dev->parent);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
gi2c->se.base = devm_ioremap_resource(dev, res);
gi2c->se.base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(gi2c->se.base))
return PTR_ERR(gi2c->se.base);

16
drivers/i2c/busses/i2c-qup.c
View File

@ -1927,7 +1927,6 @@ static void qup_i2c_remove(struct platform_device *pdev)
pm_runtime_set_suspended(qup->dev);
}
#ifdef CONFIG_PM
static int qup_i2c_pm_suspend_runtime(struct device *device)
{
struct qup_i2c_dev *qup = dev_get_drvdata(device);
@ -1945,9 +1944,7 @@ static int qup_i2c_pm_resume_runtime(struct device *device)
qup_i2c_enable_clocks(qup);
return 0;
}
#endif
#ifdef CONFIG_PM_SLEEP
static int qup_i2c_suspend(struct device *device)
{
if (!pm_runtime_suspended(device))
@ -1962,16 +1959,11 @@ static int qup_i2c_resume(struct device *device)
pm_request_autosuspend(device);
return 0;
}
#endif
static const struct dev_pm_ops qup_i2c_qup_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(
qup_i2c_suspend,
qup_i2c_resume)
SET_RUNTIME_PM_OPS(
qup_i2c_pm_suspend_runtime,
qup_i2c_pm_resume_runtime,
NULL)
SYSTEM_SLEEP_PM_OPS(qup_i2c_suspend, qup_i2c_resume)
RUNTIME_PM_OPS(qup_i2c_pm_suspend_runtime,
qup_i2c_pm_resume_runtime, NULL)
};
static const struct of_device_id qup_i2c_dt_match[] = {
@ -1987,7 +1979,7 @@ static struct platform_driver qup_i2c_driver = {
.remove_new = qup_i2c_remove,
.driver = {
.name = "i2c_qup",
.pm = &qup_i2c_qup_pm_ops,
.pm = pm_ptr(&qup_i2c_qup_pm_ops),
.of_match_table = qup_i2c_dt_match,
.acpi_match_table = ACPI_PTR(qup_i2c_acpi_match),
},

12
drivers/i2c/busses/i2c-rcar.c
View File

@ -24,7 +24,7 @@
#include <linux/i2c-smbus.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
@ -1169,7 +1169,6 @@ static void rcar_i2c_remove(struct platform_device *pdev)
pm_runtime_disable(dev);
}
#ifdef CONFIG_PM_SLEEP
static int rcar_i2c_suspend(struct device *dev)
{
struct rcar_i2c_priv *priv = dev_get_drvdata(dev);
@ -1187,19 +1186,14 @@ static int rcar_i2c_resume(struct device *dev)
}
static const struct dev_pm_ops rcar_i2c_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(rcar_i2c_suspend, rcar_i2c_resume)
NOIRQ_SYSTEM_SLEEP_PM_OPS(rcar_i2c_suspend, rcar_i2c_resume)
};
#define DEV_PM_OPS (&rcar_i2c_pm_ops)
#else
#define DEV_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static struct platform_driver rcar_i2c_driver = {
.driver = {
.name = "i2c-rcar",
.of_match_table = rcar_i2c_dt_ids,
.pm = DEV_PM_OPS,
.pm = pm_sleep_ptr(&rcar_i2c_pm_ops),
},
.probe = rcar_i2c_probe,
.remove_new = rcar_i2c_remove,

1
drivers/i2c/busses/i2c-riic.c
View File

@ -42,7 +42,6 @@
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>

20
drivers/i2c/busses/i2c-s3c2410.c
View File

@ -24,7 +24,6 @@
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/gpio/consumer.h>
#include <linux/pinctrl/consumer.h>
#include <linux/mfd/syscon.h>
@ -1034,9 +1033,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "clock source %p\n", i2c->clk);
/* map the registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
i2c->regs = devm_ioremap_resource(&pdev->dev, res);
i2c->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(i2c->regs))
return PTR_ERR(i2c->regs);
@ -1076,7 +1073,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
if (!(i2c->quirks & QUIRK_POLL)) {
i2c->irq = ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(&pdev->dev, "cannot find IRQ\n");
clk_unprepare(i2c->clk);
return ret;
}
@ -1125,7 +1121,6 @@ static void s3c24xx_i2c_remove(struct platform_device *pdev)
i2c_del_adapter(&i2c->adap);
}
#ifdef CONFIG_PM_SLEEP
static int s3c24xx_i2c_suspend_noirq(struct device *dev)
{
struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
@ -1155,26 +1150,19 @@ static int s3c24xx_i2c_resume_noirq(struct device *dev)
return 0;
}
#endif
#ifdef CONFIG_PM
static const struct dev_pm_ops s3c24xx_i2c_dev_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(s3c24xx_i2c_suspend_noirq,
s3c24xx_i2c_resume_noirq)
NOIRQ_SYSTEM_SLEEP_PM_OPS(s3c24xx_i2c_suspend_noirq,
s3c24xx_i2c_resume_noirq)
};
#define S3C24XX_DEV_PM_OPS (&s3c24xx_i2c_dev_pm_ops)
#else
#define S3C24XX_DEV_PM_OPS NULL
#endif
static struct platform_driver s3c24xx_i2c_driver = {
.probe = s3c24xx_i2c_probe,
.remove_new = s3c24xx_i2c_remove,
.id_table = s3c24xx_driver_ids,
.driver = {
.name = "s3c-i2c",
.pm = S3C24XX_DEV_PM_OPS,
.pm = pm_sleep_ptr(&s3c24xx_i2c_dev_pm_ops),
.of_match_table = of_match_ptr(s3c24xx_i2c_match),
},
};

22
drivers/i2c/busses/i2c-sh_mobile.c
View File

@ -20,7 +20,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
@ -871,7 +871,6 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
{
struct sh_mobile_i2c_data *pd;
struct i2c_adapter *adap;
struct resource *res;
const struct sh_mobile_dt_config *config;
int ret;
u32 bus_speed;
@ -893,10 +892,7 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
pd->dev = &dev->dev;
platform_set_drvdata(dev, pd);
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
pd->res = res;
pd->reg = devm_ioremap_resource(&dev->dev, res);
pd->reg = devm_platform_get_and_ioremap_resource(dev, 0, &pd->res);
if (IS_ERR(pd->reg))
return PTR_ERR(pd->reg);
@ -905,7 +901,7 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
pd->clks_per_count = 1;
/* Newer variants come with two new bits in ICIC */
if (resource_size(res) > 0x17)
if (resource_size(pd->res) > 0x17)
pd->flags |= IIC_FLAG_HAS_ICIC67;
pm_runtime_enable(&dev->dev);
@ -965,7 +961,6 @@ static void sh_mobile_i2c_remove(struct platform_device *dev)
pm_runtime_disable(&dev->dev);
}
#ifdef CONFIG_PM_SLEEP
static int sh_mobile_i2c_suspend(struct device *dev)
{
struct sh_mobile_i2c_data *pd = dev_get_drvdata(dev);
@ -983,20 +978,15 @@ static int sh_mobile_i2c_resume(struct device *dev)
}
static const struct dev_pm_ops sh_mobile_i2c_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(sh_mobile_i2c_suspend,
sh_mobile_i2c_resume)
NOIRQ_SYSTEM_SLEEP_PM_OPS(sh_mobile_i2c_suspend,
sh_mobile_i2c_resume)
};
#define DEV_PM_OPS (&sh_mobile_i2c_pm_ops)
#else
#define DEV_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static struct platform_driver sh_mobile_i2c_driver = {
.driver = {
.name = "i2c-sh_mobile",
.of_match_table = sh_mobile_i2c_dt_ids,
.pm = DEV_PM_OPS,
.pm = pm_sleep_ptr(&sh_mobile_i2c_pm_ops),
},
.probe = sh_mobile_i2c_probe,
.remove_new = sh_mobile_i2c_remove,

20
drivers/i2c/busses/i2c-sis5595.c
View File

@ -175,11 +175,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
if (force_addr) {
dev_info(&SIS5595_dev->dev, "forcing ISA address 0x%04X\n", sis5595_base);
if (pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base)
!= PCIBIOS_SUCCESSFUL)
retval = pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base);
if (retval != PCIBIOS_SUCCESSFUL)
goto error;
if (pci_read_config_word(SIS5595_dev, ACPI_BASE, &a)
!= PCIBIOS_SUCCESSFUL)
retval = pci_read_config_word(SIS5595_dev, ACPI_BASE, &a);
if (retval != PCIBIOS_SUCCESSFUL)
goto error;
if ((a & ~(SIS5595_EXTENT - 1)) != sis5595_base) {
/* doesn't work for some chips! */
@ -188,16 +188,16 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
}
}
if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
!= PCIBIOS_SUCCESSFUL)
retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
if (retval != PCIBIOS_SUCCESSFUL)
goto error;
if ((val & 0x80) == 0) {
dev_info(&SIS5595_dev->dev, "enabling ACPI\n");
if (pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80)
!= PCIBIOS_SUCCESSFUL)
retval = pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80);
if (retval != PCIBIOS_SUCCESSFUL)
goto error;
if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
!= PCIBIOS_SUCCESSFUL)
retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
if (retval != PCIBIOS_SUCCESSFUL)
goto error;
if ((val & 0x80) == 0) {
/* doesn't work for some chips? */

1
drivers/i2c/busses/i2c-sprd.c
View File

@ -14,7 +14,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>

3
drivers/i2c/busses/i2c-st.c
View File

@ -812,8 +812,7 @@ static int st_i2c_probe(struct platform_device *pdev)
if (!i2c_dev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
i2c_dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(i2c_dev->base))
return PTR_ERR(i2c_dev->base);

3
drivers/i2c/busses/i2c-stm32f4.c
View File

@ -767,8 +767,7 @@ static int stm32f4_i2c_probe(struct platform_device *pdev)
if (!i2c_dev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
i2c_dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(i2c_dev->base))
return PTR_ERR(i2c_dev->base);

8
drivers/i2c/busses/i2c-stm32f7.c
View File

@ -2121,12 +2121,12 @@ static int stm32f7_i2c_probe(struct platform_device *pdev)
phy_addr = (dma_addr_t)res->start;
irq_event = platform_get_irq(pdev, 0);
if (irq_event <= 0)
return irq_event ? : -ENOENT;
if (irq_event < 0)
return irq_event;
irq_error = platform_get_irq(pdev, 1);
if (irq_error <= 0)
return irq_error ? : -ENOENT;
if (irq_error < 0)
return irq_error;
i2c_dev->wakeup_src = of_property_read_bool(pdev->dev.of_node,
"wakeup-source");

28
drivers/i2c/busses/i2c-synquacer.c
View File

@ -557,20 +557,16 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "clock source %p\n", i2c->pclk);
ret = clk_prepare_enable(i2c->pclk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock (%d)\n",
ret);
return ret;
}
if (ret)
return dev_err_probe(&pdev->dev, ret, "failed to enable clock\n");
i2c->pclkrate = clk_get_rate(i2c->pclk);
}
if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE) {
dev_err(&pdev->dev, "PCLK missing or out of range (%d)\n",
i2c->pclkrate);
return -EINVAL;
}
i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE)
return dev_err_probe(&pdev->dev, -EINVAL,
"PCLK missing or out of range (%d)\n",
i2c->pclkrate);
i2c->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(i2c->base))
@ -582,10 +578,8 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
0, dev_name(&pdev->dev), i2c);
if (ret < 0) {
dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
return ret;
}
if (ret < 0)
return dev_err_probe(&pdev->dev, ret, "cannot claim IRQ %d\n", i2c->irq);
i2c->state = STATE_IDLE;
i2c->dev = &pdev->dev;
@ -605,10 +599,8 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
synquacer_i2c_hw_init(i2c);
ret = i2c_add_numbered_adapter(&i2c->adapter);
if (ret) {
dev_err(&pdev->dev, "failed to add bus to i2c core\n");
return ret;
}
if (ret)
return dev_err_probe(&pdev->dev, ret, "failed to add bus to i2c core\n");
platform_set_drvdata(pdev, i2c);

2
drivers/i2c/busses/i2c-tegra-bpmp.c
View File

@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>

2
drivers/i2c/busses/i2c-tegra.c
View File

@ -22,7 +22,7 @@
#include <linux/kernel.h>
#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>

4
drivers/i2c/busses/i2c-tiny-usb.c
View File

@ -222,6 +222,10 @@ static int i2c_tiny_usb_probe(struct usb_interface *interface,
int retval = -ENOMEM;
u16 version;
if (interface->intf_assoc &&
interface->intf_assoc->bFunctionClass != USB_CLASS_VENDOR_SPEC)
return -ENODEV;
dev_dbg(&interface->dev, "probing usb device\n");
/* allocate memory for our device state and initialize it */

8
drivers/i2c/busses/i2c-virtio.c
View File

@ -243,7 +243,6 @@ static struct virtio_device_id id_table[] = {
};
MODULE_DEVICE_TABLE(virtio, id_table);
#ifdef CONFIG_PM_SLEEP
static int virtio_i2c_freeze(struct virtio_device *vdev)
{
virtio_i2c_del_vqs(vdev);
@ -254,7 +253,6 @@ static int virtio_i2c_restore(struct virtio_device *vdev)
{
return virtio_i2c_setup_vqs(vdev->priv);
}
#endif
static const unsigned int features[] = {
VIRTIO_I2C_F_ZERO_LENGTH_REQUEST,
@ -269,10 +267,8 @@ static struct virtio_driver virtio_i2c_driver = {
.driver = {
.name = "i2c_virtio",
},
#ifdef CONFIG_PM_SLEEP
.freeze = virtio_i2c_freeze,
.restore = virtio_i2c_restore,
#endif
.freeze = pm_sleep_ptr(virtio_i2c_freeze),
.restore = pm_sleep_ptr(virtio_i2c_restore),
};
module_virtio_driver(virtio_i2c_driver);

6
drivers/i2c/busses/i2c-xlp9xx.c
View File

@ -529,10 +529,8 @@ static int xlp9xx_i2c_probe(struct platform_device *pdev)
err = devm_request_irq(&pdev->dev, priv->irq, xlp9xx_i2c_isr, 0,
pdev->name, priv);
if (err) {
dev_err(&pdev->dev, "IRQ request failed!\n");
return err;
}
if (err)
return dev_err_probe(&pdev->dev, err, "IRQ request failed!\n");
init_completion(&priv->msg_complete);
priv->adapter.dev.parent = &pdev->dev;

6
drivers/i2c/muxes/Kconfig
View File

@ -65,11 +65,11 @@ config I2C_MUX_PCA9541
will be called i2c-mux-pca9541.
config I2C_MUX_PCA954x
tristate "NXP PCA954x and PCA984x I2C Mux/switches"
tristate "NXP PCA954x/PCA984x and Maxim MAX735x/MAX736x I2C Mux/switches"
depends on GPIOLIB || COMPILE_TEST
help
If you say yes here you get support for the NXP PCA954x
and PCA984x I2C mux/switch devices.
If you say yes here you get support for NXP PCA954x/PCA984x
and Maxim MAX735x/MAX736x I2C mux/switch devices.
This driver can also be built as a module. If so, the module
will be called i2c-mux-pca954x.

2
drivers/i2c/muxes/i2c-mux-gpmux.c
View File

@ -11,7 +11,7 @@
#include <linux/i2c-mux.h>
#include <linux/module.h>
#include <linux/mux/consumer.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
struct mux {

3
drivers/i2c/muxes/i2c-mux-ltc4306.c
View File

@ -15,7 +15,6 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/slab.h>
@ -62,7 +61,7 @@ static const struct chip_desc chips[] = {
static bool ltc4306_is_volatile_reg(struct device *dev, unsigned int reg)
{
return (reg == LTC_REG_CONFIG) ? true : false;
return reg == LTC_REG_CONFIG;
}
static const struct regmap_config ltc4306_regmap_config = {

101
drivers/i2c/muxes/i2c-mux-pca954x.c
View File

@ -11,6 +11,12 @@
* PCA9540, PCA9542, PCA9543, PCA9544, PCA9545, PCA9546, PCA9547,
* PCA9548, PCA9846, PCA9847, PCA9848 and PCA9849.
*
* It's also compatible to Maxims MAX735x I2C switch chips, which are controlled
* as the NXP PCA9548 and the MAX736x chips that act like the PCA9544.
*
* This includes the:
* MAX7356, MAX7357, MAX7358, MAX7367, MAX7368 and MAX7369
*
* These chips are all controlled via the I2C bus itself, and all have a
* single 8-bit register. The upstream "parent" bus fans out to two,
* four, or eight downstream busses or channels; which of these
@ -42,6 +48,7 @@
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <dt-bindings/mux/mux.h>
@ -51,6 +58,12 @@
#define PCA954X_IRQ_OFFSET 4
enum pca_type {
max_7356,
max_7357,
max_7358,
max_7367,
max_7368,
max_7369,
pca_9540,
pca_9542,
pca_9543,
@ -88,10 +101,52 @@ struct pca954x {
struct irq_domain *irq;
unsigned int irq_mask;
raw_spinlock_t lock;
struct regulator *supply;
};
/* Provide specs for the PCA954x types we know about */
/* Provide specs for the MAX735x, PCA954x and PCA984x types we know about */
static const struct chip_desc chips[] = {
[max_7356] = {
.nchans = 8,
.muxtype = pca954x_isswi,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
},
[max_7357] = {
.nchans = 8,
.muxtype = pca954x_isswi,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
/*
* No interrupt controller support. The interrupt
* provides information about stuck channels.
*/
},
[max_7358] = {
.nchans = 8,
.muxtype = pca954x_isswi,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
/*
* No interrupt controller support. The interrupt
* provides information about stuck channels.
*/
},
[max_7367] = {
.nchans = 4,
.muxtype = pca954x_isswi,
.has_irq = 1,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
},
[max_7368] = {
.nchans = 4,
.muxtype = pca954x_isswi,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
},
[max_7369] = {
.nchans = 4,
.enable = 0x4,
.muxtype = pca954x_ismux,
.has_irq = 1,
.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
},
[pca_9540] = {
.nchans = 2,
.enable = 0x4,
@ -177,6 +232,12 @@ static const struct chip_desc chips[] = {
};
static const struct i2c_device_id pca954x_id[] = {
{ "max7356", max_7356 },
{ "max7357", max_7357 },
{ "max7358", max_7358 },
{ "max7367", max_7367 },
{ "max7368", max_7368 },
{ "max7369", max_7369 },
{ "pca9540", pca_9540 },
{ "pca9542", pca_9542 },
{ "pca9543", pca_9543 },
@ -194,6 +255,12 @@ static const struct i2c_device_id pca954x_id[] = {
MODULE_DEVICE_TABLE(i2c, pca954x_id);
static const struct of_device_id pca954x_of_match[] = {
{ .compatible = "maxim,max7356", .data = &chips[max_7356] },
{ .compatible = "maxim,max7357", .data = &chips[max_7357] },
{ .compatible = "maxim,max7358", .data = &chips[max_7358] },
{ .compatible = "maxim,max7367", .data = &chips[max_7367] },
{ .compatible = "maxim,max7368", .data = &chips[max_7368] },
{ .compatible = "maxim,max7369", .data = &chips[max_7369] },
{ .compatible = "nxp,pca9540", .data = &chips[pca_9540] },
{ .compatible = "nxp,pca9542", .data = &chips[pca_9542] },
{ .compatible = "nxp,pca9543", .data = &chips[pca_9543] },
@ -382,6 +449,8 @@ static void pca954x_cleanup(struct i2c_mux_core *muxc)
struct pca954x *data = i2c_mux_priv(muxc);
int c, irq;
regulator_disable(data->supply);
if (data->irq) {
for (c = 0; c < data->chip->nchans; c++) {
irq = irq_find_mapping(data->irq, c);
@ -434,10 +503,22 @@ static int pca954x_probe(struct i2c_client *client)
i2c_set_clientdata(client, muxc);
data->client = client;
data->supply = devm_regulator_get(dev, "vdd");
if (IS_ERR(data->supply))
return dev_err_probe(dev, PTR_ERR(data->supply),
"Failed to request regulator\n");
ret = regulator_enable(data->supply);
if (ret)
return dev_err_probe(dev, ret,
"Failed to enable vdd supply\n");
/* Reset the mux if a reset GPIO is specified. */
gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(gpio))
return PTR_ERR(gpio);
if (IS_ERR(gpio)) {
ret = PTR_ERR(gpio);
goto fail_cleanup;
}
if (gpio) {
udelay(1);
gpiod_set_value_cansleep(gpio, 0);
@ -454,7 +535,7 @@ static int pca954x_probe(struct i2c_client *client)
ret = i2c_get_device_id(client, &id);
if (ret && ret != -EOPNOTSUPP)
return ret;
goto fail_cleanup;
if (!ret &&
(id.manufacturer_id != data->chip->id.manufacturer_id ||
@ -462,7 +543,8 @@ static int pca954x_probe(struct i2c_client *client)
dev_warn(dev, "unexpected device id %03x-%03x-%x\n",
id.manufacturer_id, id.part_id,
id.die_revision);
return -ENODEV;
ret = -ENODEV;
goto fail_cleanup;
}
}
@ -481,7 +563,8 @@ static int pca954x_probe(struct i2c_client *client)
ret = pca954x_init(client, data);
if (ret < 0) {
dev_warn(dev, "probe failed\n");
return -ENODEV;
ret = -ENODEV;
goto fail_cleanup;
}
ret = pca954x_irq_setup(muxc);
@ -530,7 +613,6 @@ static void pca954x_remove(struct i2c_client *client)
pca954x_cleanup(muxc);
}
#ifdef CONFIG_PM_SLEEP
static int pca954x_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@ -544,14 +626,13 @@ static int pca954x_resume(struct device *dev)
return ret;
}
#endif
static SIMPLE_DEV_PM_OPS(pca954x_pm, NULL, pca954x_resume);
static DEFINE_SIMPLE_DEV_PM_OPS(pca954x_pm, NULL, pca954x_resume);
static struct i2c_driver pca954x_driver = {
.driver = {
.name = "pca954x",
.pm = &pca954x_pm,
.pm = pm_sleep_ptr(&pca954x_pm),
.of_match_table = pca954x_of_match,
},
.probe = pca954x_probe,

2
include/linux/virtio.h
View File

@ -191,10 +191,8 @@ struct virtio_driver {
void (*scan)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
void (*config_changed)(struct virtio_device *dev);
#ifdef CONFIG_PM
int (*freeze)(struct virtio_device *dev);
int (*restore)(struct virtio_device *dev);
#endif
};
static inline struct virtio_driver *drv_to_virtio(struct device_driver *drv)