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pinctrl: intel: Constify struct intel_pinctrl parameter

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There are a few functions that do not and should not change
the state of the pin control object. Constify the respective
parameter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2024-09-05 17:21:38 +03:00
parent bda2f1c2d8
commit 1652e95b17
2 changed files with 17 additions and 15 deletions
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29
drivers/pinctrl/intel/pinctrl-intel.c
View File

@ -132,7 +132,8 @@ struct intel_community_context {
for_each_intel_pad_group(pctrl, community, grp) \
if (grp->gpio_base == INTEL_GPIO_BASE_NOMAP) {} else
const struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin)
const struct intel_community *intel_get_community(const struct intel_pinctrl *pctrl,
unsigned int pin)
{
const struct intel_community *community;
@ -181,7 +182,7 @@ static void __iomem *intel_get_padcfg(struct intel_pinctrl *pctrl,
return community->pad_regs + reg + padno * nregs * 4;
}
static bool intel_pad_owned_by_host(struct intel_pinctrl *pctrl, unsigned int pin)
static bool intel_pad_owned_by_host(const struct intel_pinctrl *pctrl, unsigned int pin)
{
const struct intel_community *community;
const struct intel_padgroup *padgrp;
@ -206,7 +207,7 @@ static bool intel_pad_owned_by_host(struct intel_pinctrl *pctrl, unsigned int pi
return !(readl(padown) & PADOWN_MASK(gpp_offset));
}
static bool intel_pad_acpi_mode(struct intel_pinctrl *pctrl, unsigned int pin)
static bool intel_pad_acpi_mode(const struct intel_pinctrl *pctrl, unsigned int pin)
{
const struct intel_community *community;
const struct intel_padgroup *padgrp;
@ -248,7 +249,7 @@ enum {
PAD_LOCKED_FULL = PAD_LOCKED | PAD_LOCKED_TX,
};
static int intel_pad_locked(struct intel_pinctrl *pctrl, unsigned int pin)
static int intel_pad_locked(const struct intel_pinctrl *pctrl, unsigned int pin)
{
const struct intel_community *community;
const struct intel_padgroup *padgrp;
@ -286,19 +287,19 @@ static int intel_pad_locked(struct intel_pinctrl *pctrl, unsigned int pin)
return ret;
}
static bool intel_pad_is_unlocked(struct intel_pinctrl *pctrl, unsigned int pin)
static bool intel_pad_is_unlocked(const struct intel_pinctrl *pctrl, unsigned int pin)
{
return (intel_pad_locked(pctrl, pin) & PAD_LOCKED) == PAD_UNLOCKED;
}
static bool intel_pad_usable(struct intel_pinctrl *pctrl, unsigned int pin)
static bool intel_pad_usable(const struct intel_pinctrl *pctrl, unsigned int pin)
{
return intel_pad_owned_by_host(pctrl, pin) && intel_pad_is_unlocked(pctrl, pin);
}
int intel_get_groups_count(struct pinctrl_dev *pctldev)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
return pctrl->soc->ngroups;
}
@ -306,7 +307,7 @@ EXPORT_SYMBOL_NS_GPL(intel_get_groups_count, PINCTRL_INTEL);
const char *intel_get_group_name(struct pinctrl_dev *pctldev, unsigned int group)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
return pctrl->soc->groups[group].grp.name;
}
@ -315,7 +316,7 @@ EXPORT_SYMBOL_NS_GPL(intel_get_group_name, PINCTRL_INTEL);
int intel_get_group_pins(struct pinctrl_dev *pctldev, unsigned int group,
const unsigned int **pins, unsigned int *npins)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
*pins = pctrl->soc->groups[group].grp.pins;
*npins = pctrl->soc->groups[group].grp.npins;
@ -383,7 +384,7 @@ static const struct pinctrl_ops intel_pinctrl_ops = {
int intel_get_functions_count(struct pinctrl_dev *pctldev)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
return pctrl->soc->nfunctions;
}
@ -391,7 +392,7 @@ EXPORT_SYMBOL_NS_GPL(intel_get_functions_count, PINCTRL_INTEL);
const char *intel_get_function_name(struct pinctrl_dev *pctldev, unsigned int function)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
return pctrl->soc->functions[function].func.name;
}
@ -400,7 +401,7 @@ EXPORT_SYMBOL_NS_GPL(intel_get_function_name, PINCTRL_INTEL);
int intel_get_function_groups(struct pinctrl_dev *pctldev, unsigned int function,
const char * const **groups, unsigned int * const ngroups)
{
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
*groups = pctrl->soc->functions[function].func.groups;
*ngroups = pctrl->soc->functions[function].func.ngroups;
@ -952,7 +953,7 @@ static const struct pinctrl_desc intel_pinctrl_desc = {
* Return: a pin number and pointers to the community and pad group, which
* the pin belongs to, or negative error code if translation can't be done.
*/
static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
static int intel_gpio_to_pin(const struct intel_pinctrl *pctrl, unsigned int offset,
const struct intel_community **community,
const struct intel_padgroup **padgrp)
{
@ -982,7 +983,7 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
*
* Return: a GPIO offset, or negative error code if translation can't be done.
*/
static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
static int intel_pin_to_gpio(const struct intel_pinctrl *pctrl, int pin)
{
const struct intel_community *community;
const struct intel_padgroup *padgrp;

3
drivers/pinctrl/intel/pinctrl-intel.h
View File

@ -264,7 +264,8 @@ int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
extern const struct dev_pm_ops intel_pinctrl_pm_ops;
const struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin);
const struct intel_community *intel_get_community(const struct intel_pinctrl *pctrl,
unsigned int pin);
int intel_get_groups_count(struct pinctrl_dev *pctldev);
const char *intel_get_group_name(struct pinctrl_dev *pctldev, unsigned int group);