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pinctrl: intel: Introduce intel_pinctrl_probe_by_uid() internal API 

Introduce intel_pinctrl_probe_by_uid() internal API to simplify drivers,
which are using ACPI _UID to distinguish which SoC data needs to be used
when being probed.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2018-08-30 19:27:36 +03:00 committed by Linus Walleij
parent 5624bf9635
commit 924cf80057
2 changed files with 40 additions and 0 deletions
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38
drivers/pinctrl/intel/pinctrl-intel.c
View File

@ -7,11 +7,14 @@
* Mika Westerberg <mika.westerberg@linux.intel.com>
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/gpio/driver.h>
#include <linux/log2.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf.h>
@ -1415,6 +1418,41 @@ int intel_pinctrl_probe(struct platform_device *pdev,
}
EXPORT_SYMBOL_GPL(intel_pinctrl_probe);
int intel_pinctrl_probe_by_uid(struct platform_device *pdev)
{
const struct intel_pinctrl_soc_data *data = NULL;
const struct intel_pinctrl_soc_data **table;
struct acpi_device *adev;
unsigned int i;
adev = ACPI_COMPANION(&pdev->dev);
if (adev) {
const void *match = device_get_match_data(&pdev->dev);
table = (const struct intel_pinctrl_soc_data **)match;
for (i = 0; table[i]; i++) {
if (!strcmp(adev->pnp.unique_id, table[i]->uid)) {
data = table[i];
break;
}
}
} else {
const struct platform_device_id *id;
id = platform_get_device_id(pdev);
if (!id)
return -ENODEV;
table = (const struct intel_pinctrl_soc_data **)id->driver_data;
data = table[pdev->id];
}
if (!data)
return -ENODEV;
return intel_pinctrl_probe(pdev, data);
}
EXPORT_SYMBOL_GPL(intel_pinctrl_probe_by_uid);
#ifdef CONFIG_PM_SLEEP
static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned pin)
{

2
drivers/pinctrl/intel/pinctrl-intel.h
View File

@ -173,6 +173,8 @@ struct intel_pinctrl_soc_data {
int intel_pinctrl_probe(struct platform_device *pdev,
const struct intel_pinctrl_soc_data *soc_data);
int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
#ifdef CONFIG_PM_SLEEP
int intel_pinctrl_suspend(struct device *dev);
int intel_pinctrl_resume(struct device *dev);