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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-29 17:25:38 +00:00
mfd: adp5585: Add Analog Devices ADP5585 core support
The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
This driver supports the chip by modelling it as an MFD device, with two
child devices for the GPIO and PWM functions.
The driver is derived from an initial implementation from NXP, available
in commit 8059835bee19 ("MLK-25917-1 mfd: adp5585: add ADI adp5585 core
support") in their BSP kernel tree. It has been extensively rewritten.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240722121100.2855-3-laurent.pinchart@ideasonboard.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Haibo Chen
Lee Jones
parent
312fc21c86
commit
480a8ad683
@ -543,6 +543,8 @@ L: linux-gpio@vger.kernel.org
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L: linux-pwm@vger.kernel.org
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L: linux-pwm@vger.kernel.org
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S: Maintained
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S: Maintained
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F: Documentation/devicetree/bindings/*/adi,adp5585*.yaml
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F: Documentation/devicetree/bindings/*/adi,adp5585*.yaml
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F: drivers/mfd/adp5585.c
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F: include/linux/mfd/adp5585.h
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ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
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ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
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M: Michael Hennerich <michael.hennerich@analog.com>
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M: Michael Hennerich <michael.hennerich@analog.com>
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@ -20,6 +20,18 @@ config MFD_CS5535
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This is the core driver for CS5535/CS5536 MFD functions. This is
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This is the core driver for CS5535/CS5536 MFD functions. This is
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necessary for using the board's GPIO and MFGPT functionality.
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necessary for using the board's GPIO and MFGPT functionality.
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config MFD_ADP5585
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tristate "Analog Devices ADP5585 keypad decoder and I/O expander driver"
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select MFD_CORE
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select REGMAP_I2C
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depends on I2C
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depends on OF || COMPILE_TEST
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help
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Say yes here to add support for the Analog Devices ADP5585 GPIO
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expander, PWM and keypad controller. This includes the I2C driver and
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the core APIs _only_, you have to select individual components like
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the GPIO and PWM functions under the corresponding menus.
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config MFD_ALTERA_A10SR
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config MFD_ALTERA_A10SR
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bool "Altera Arria10 DevKit System Resource chip"
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bool "Altera Arria10 DevKit System Resource chip"
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depends on ARCH_INTEL_SOCFPGA && SPI_MASTER=y && OF
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depends on ARCH_INTEL_SOCFPGA && SPI_MASTER=y && OF
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@ -193,6 +193,7 @@ obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o
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obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
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obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
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obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
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obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
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obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
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obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
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obj-$(CONFIG_MFD_ADP5585) += adp5585.o
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obj-$(CONFIG_MFD_KEMPLD) += kempld-core.o
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obj-$(CONFIG_MFD_KEMPLD) += kempld-core.o
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obj-$(CONFIG_MFD_INTEL_QUARK_I2C_GPIO) += intel_quark_i2c_gpio.o
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obj-$(CONFIG_MFD_INTEL_QUARK_I2C_GPIO) += intel_quark_i2c_gpio.o
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obj-$(CONFIG_LPC_SCH) += lpc_sch.o
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obj-$(CONFIG_LPC_SCH) += lpc_sch.o
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205
drivers/mfd/adp5585.c
Normal file
205
drivers/mfd/adp5585.c
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@ -0,0 +1,205 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Analog Devices ADP5585 I/O expander, PWM controller and keypad controller
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*
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* Copyright 2022 NXP
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* Copyright 2024 Ideas on Board Oy
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*/
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#include <linux/array_size.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include <linux/mfd/adp5585.h>
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#include <linux/mfd/core.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/types.h>
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static const struct mfd_cell adp5585_devs[] = {
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{ .name = "adp5585-gpio", },
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{ .name = "adp5585-pwm", },
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};
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static const struct regmap_range adp5585_volatile_ranges[] = {
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regmap_reg_range(ADP5585_ID, ADP5585_GPI_STATUS_B),
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};
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static const struct regmap_access_table adp5585_volatile_regs = {
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.yes_ranges = adp5585_volatile_ranges,
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.n_yes_ranges = ARRAY_SIZE(adp5585_volatile_ranges),
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};
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/*
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* Chip variants differ in the default configuration of pull-up and pull-down
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* resistors, and therefore have different default register values:
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*
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* - The -00, -01 and -03 variants (collectively referred to as
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* ADP5585_REGMAP_00) have pull-up on all GPIO pins by default.
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* - The -02 variant has no default pull-up or pull-down resistors.
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* - The -04 variant has default pull-down resistors on all GPIO pins.
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*/
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static const u8 adp5585_regmap_defaults_00[ADP5585_MAX_REG + 1] = {
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/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x18 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const u8 adp5585_regmap_defaults_02[ADP5585_MAX_REG + 1] = {
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/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3,
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/* 0x18 */ 0x03, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const u8 adp5585_regmap_defaults_04[ADP5585_MAX_REG + 1] = {
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/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55,
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/* 0x18 */ 0x05, 0x55, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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enum adp5585_regmap_type {
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ADP5585_REGMAP_00,
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ADP5585_REGMAP_02,
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ADP5585_REGMAP_04,
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};
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static const struct regmap_config adp5585_regmap_configs[] = {
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[ADP5585_REGMAP_00] = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = ADP5585_MAX_REG,
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.volatile_table = &adp5585_volatile_regs,
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.cache_type = REGCACHE_MAPLE,
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.reg_defaults_raw = adp5585_regmap_defaults_00,
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.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_00),
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},
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[ADP5585_REGMAP_02] = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = ADP5585_MAX_REG,
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.volatile_table = &adp5585_volatile_regs,
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.cache_type = REGCACHE_MAPLE,
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.reg_defaults_raw = adp5585_regmap_defaults_02,
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.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_02),
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},
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[ADP5585_REGMAP_04] = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = ADP5585_MAX_REG,
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.volatile_table = &adp5585_volatile_regs,
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.cache_type = REGCACHE_MAPLE,
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.reg_defaults_raw = adp5585_regmap_defaults_04,
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.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_04),
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},
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};
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static int adp5585_i2c_probe(struct i2c_client *i2c)
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{
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const struct regmap_config *regmap_config;
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struct adp5585_dev *adp5585;
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unsigned int id;
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int ret;
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adp5585 = devm_kzalloc(&i2c->dev, sizeof(*adp5585), GFP_KERNEL);
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if (!adp5585)
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return -ENOMEM;
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i2c_set_clientdata(i2c, adp5585);
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regmap_config = i2c_get_match_data(i2c);
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adp5585->regmap = devm_regmap_init_i2c(i2c, regmap_config);
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if (IS_ERR(adp5585->regmap))
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return dev_err_probe(&i2c->dev, PTR_ERR(adp5585->regmap),
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"Failed to initialize register map\n");
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ret = regmap_read(adp5585->regmap, ADP5585_ID, &id);
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if (ret)
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return dev_err_probe(&i2c->dev, ret,
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"Failed to read device ID\n");
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if ((id & ADP5585_MAN_ID_MASK) != ADP5585_MAN_ID_VALUE)
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return dev_err_probe(&i2c->dev, -ENODEV,
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"Invalid device ID 0x%02x\n", id);
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ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
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adp5585_devs, ARRAY_SIZE(adp5585_devs),
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NULL, 0, NULL);
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if (ret)
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return dev_err_probe(&i2c->dev, ret,
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"Failed to add child devices\n");
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return 0;
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}
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static int adp5585_suspend(struct device *dev)
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{
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struct adp5585_dev *adp5585 = dev_get_drvdata(dev);
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regcache_cache_only(adp5585->regmap, true);
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return 0;
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}
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static int adp5585_resume(struct device *dev)
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{
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struct adp5585_dev *adp5585 = dev_get_drvdata(dev);
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regcache_cache_only(adp5585->regmap, false);
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regcache_mark_dirty(adp5585->regmap);
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return regcache_sync(adp5585->regmap);
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}
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static DEFINE_SIMPLE_DEV_PM_OPS(adp5585_pm, adp5585_suspend, adp5585_resume);
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static const struct of_device_id adp5585_of_match[] = {
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{
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.compatible = "adi,adp5585-00",
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.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
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}, {
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.compatible = "adi,adp5585-01",
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.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
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}, {
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.compatible = "adi,adp5585-02",
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.data = &adp5585_regmap_configs[ADP5585_REGMAP_02],
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}, {
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.compatible = "adi,adp5585-03",
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.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
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}, {
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.compatible = "adi,adp5585-04",
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.data = &adp5585_regmap_configs[ADP5585_REGMAP_04],
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},
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, adp5585_of_match);
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static struct i2c_driver adp5585_i2c_driver = {
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.driver = {
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.name = "adp5585",
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.of_match_table = adp5585_of_match,
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.pm = pm_sleep_ptr(&adp5585_pm),
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},
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.probe = adp5585_i2c_probe,
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};
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module_i2c_driver(adp5585_i2c_driver);
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MODULE_DESCRIPTION("ADP5585 core driver");
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MODULE_AUTHOR("Haibo Chen <haibo.chen@nxp.com>");
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MODULE_LICENSE("GPL");
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126
include/linux/mfd/adp5585.h
Normal file
126
include/linux/mfd/adp5585.h
Normal file
@ -0,0 +1,126 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Analog Devices ADP5585 I/O expander, PWM controller and keypad controller
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*
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* Copyright 2022 NXP
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* Copyright 2024 Ideas on Board Oy
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*/
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#ifndef __MFD_ADP5585_H_
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#define __MFD_ADP5585_H_
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#include <linux/bits.h>
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#define ADP5585_ID 0x00
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#define ADP5585_MAN_ID_VALUE 0x20
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#define ADP5585_MAN_ID_MASK GENMASK(7, 4)
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#define ADP5585_INT_STATUS 0x01
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#define ADP5585_STATUS 0x02
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#define ADP5585_FIFO_1 0x03
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#define ADP5585_FIFO_2 0x04
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#define ADP5585_FIFO_3 0x05
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#define ADP5585_FIFO_4 0x06
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#define ADP5585_FIFO_5 0x07
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#define ADP5585_FIFO_6 0x08
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#define ADP5585_FIFO_7 0x09
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#define ADP5585_FIFO_8 0x0a
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#define ADP5585_FIFO_9 0x0b
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#define ADP5585_FIFO_10 0x0c
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#define ADP5585_FIFO_11 0x0d
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#define ADP5585_FIFO_12 0x0e
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#define ADP5585_FIFO_13 0x0f
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#define ADP5585_FIFO_14 0x10
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#define ADP5585_FIFO_15 0x11
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#define ADP5585_FIFO_16 0x12
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#define ADP5585_GPI_INT_STAT_A 0x13
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#define ADP5585_GPI_INT_STAT_B 0x14
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#define ADP5585_GPI_STATUS_A 0x15
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#define ADP5585_GPI_STATUS_B 0x16
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#define ADP5585_RPULL_CONFIG_A 0x17
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#define ADP5585_RPULL_CONFIG_B 0x18
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#define ADP5585_RPULL_CONFIG_C 0x19
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#define ADP5585_RPULL_CONFIG_D 0x1a
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#define ADP5585_Rx_PULL_CFG_PU_300K 0
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#define ADP5585_Rx_PULL_CFG_PD_300K 1
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#define ADP5585_Rx_PULL_CFG_PU_100K 2
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#define ADP5585_Rx_PULL_CFG_DISABLE 3
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#define ADP5585_Rx_PULL_CFG_MASK 3
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#define ADP5585_GPI_INT_LEVEL_A 0x1b
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#define ADP5585_GPI_INT_LEVEL_B 0x1c
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#define ADP5585_GPI_EVENT_EN_A 0x1d
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#define ADP5585_GPI_EVENT_EN_B 0x1e
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#define ADP5585_GPI_INTERRUPT_EN_A 0x1f
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#define ADP5585_GPI_INTERRUPT_EN_B 0x20
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#define ADP5585_DEBOUNCE_DIS_A 0x21
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#define ADP5585_DEBOUNCE_DIS_B 0x22
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#define ADP5585_GPO_DATA_OUT_A 0x23
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#define ADP5585_GPO_DATA_OUT_B 0x24
|
||||||
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#define ADP5585_GPO_OUT_MODE_A 0x25
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||||||
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#define ADP5585_GPO_OUT_MODE_B 0x26
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||||||
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#define ADP5585_GPIO_DIRECTION_A 0x27
|
||||||
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#define ADP5585_GPIO_DIRECTION_B 0x28
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||||||
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#define ADP5585_RESET1_EVENT_A 0x29
|
||||||
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#define ADP5585_RESET1_EVENT_B 0x2a
|
||||||
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#define ADP5585_RESET1_EVENT_C 0x2b
|
||||||
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#define ADP5585_RESET2_EVENT_A 0x2c
|
||||||
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#define ADP5585_RESET2_EVENT_B 0x2d
|
||||||
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#define ADP5585_RESET_CFG 0x2e
|
||||||
|
#define ADP5585_PWM_OFFT_LOW 0x2f
|
||||||
|
#define ADP5585_PWM_OFFT_HIGH 0x30
|
||||||
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#define ADP5585_PWM_ONT_LOW 0x31
|
||||||
|
#define ADP5585_PWM_ONT_HIGH 0x32
|
||||||
|
#define ADP5585_PWM_CFG 0x33
|
||||||
|
#define ADP5585_PWM_IN_AND BIT(2)
|
||||||
|
#define ADP5585_PWM_MODE BIT(1)
|
||||||
|
#define ADP5585_PWM_EN BIT(0)
|
||||||
|
#define ADP5585_LOGIC_CFG 0x34
|
||||||
|
#define ADP5585_LOGIC_FF_CFG 0x35
|
||||||
|
#define ADP5585_LOGIC_INT_EVENT_EN 0x36
|
||||||
|
#define ADP5585_POLL_PTIME_CFG 0x37
|
||||||
|
#define ADP5585_PIN_CONFIG_A 0x38
|
||||||
|
#define ADP5585_PIN_CONFIG_B 0x39
|
||||||
|
#define ADP5585_PIN_CONFIG_C 0x3a
|
||||||
|
#define ADP5585_PULL_SELECT BIT(7)
|
||||||
|
#define ADP5585_C4_EXTEND_CFG_GPIO11 (0U << 6)
|
||||||
|
#define ADP5585_C4_EXTEND_CFG_RESET2 (1U << 6)
|
||||||
|
#define ADP5585_C4_EXTEND_CFG_MASK GENMASK(6, 6)
|
||||||
|
#define ADP5585_R4_EXTEND_CFG_GPIO5 (0U << 5)
|
||||||
|
#define ADP5585_R4_EXTEND_CFG_RESET1 (1U << 5)
|
||||||
|
#define ADP5585_R4_EXTEND_CFG_MASK GENMASK(5, 5)
|
||||||
|
#define ADP5585_R3_EXTEND_CFG_GPIO4 (0U << 2)
|
||||||
|
#define ADP5585_R3_EXTEND_CFG_LC (1U << 2)
|
||||||
|
#define ADP5585_R3_EXTEND_CFG_PWM_OUT (2U << 2)
|
||||||
|
#define ADP5585_R3_EXTEND_CFG_MASK GENMASK(3, 2)
|
||||||
|
#define ADP5585_R0_EXTEND_CFG_GPIO1 (0U << 0)
|
||||||
|
#define ADP5585_R0_EXTEND_CFG_LY (1U << 0)
|
||||||
|
#define ADP5585_R0_EXTEND_CFG_MASK GENMASK(0, 0)
|
||||||
|
#define ADP5585_GENERAL_CFG 0x3b
|
||||||
|
#define ADP5585_OSC_EN BIT(7)
|
||||||
|
#define ADP5585_OSC_FREQ_50KHZ (0U << 5)
|
||||||
|
#define ADP5585_OSC_FREQ_100KHZ (1U << 5)
|
||||||
|
#define ADP5585_OSC_FREQ_200KHZ (2U << 5)
|
||||||
|
#define ADP5585_OSC_FREQ_500KHZ (3U << 5)
|
||||||
|
#define ADP5585_OSC_FREQ_MASK GENMASK(6, 5)
|
||||||
|
#define ADP5585_INT_CFG BIT(1)
|
||||||
|
#define ADP5585_RST_CFG BIT(0)
|
||||||
|
#define ADP5585_INT_EN 0x3c
|
||||||
|
|
||||||
|
#define ADP5585_MAX_REG ADP5585_INT_EN
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Bank 0 covers pins "GPIO 1/R0" to "GPIO 6/R5", numbered 0 to 5 by the
|
||||||
|
* driver, and bank 1 covers pins "GPIO 7/C0" to "GPIO 11/C4", numbered 6 to
|
||||||
|
* 10. Some variants of the ADP5585 don't support "GPIO 6/R5". As the driver
|
||||||
|
* uses identical GPIO numbering for all variants to avoid confusion, GPIO 5 is
|
||||||
|
* marked as reserved in the device tree for variants that don't support it.
|
||||||
|
*/
|
||||||
|
#define ADP5585_BANK(n) ((n) >= 6 ? 1 : 0)
|
||||||
|
#define ADP5585_BIT(n) ((n) >= 6 ? BIT((n) - 6) : BIT(n))
|
||||||
|
|
||||||
|
struct regmap;
|
||||||
|
|
||||||
|
struct adp5585_dev {
|
||||||
|
struct regmap *regmap;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
||||||
Loading…
Reference in New Issue
Block a user