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Commit 733cf014 authored by Y Vo's avatar Y Vo Committed by Linus Walleij
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gpio: xgene: add ACPI support for APM X-Gene GPIO standby driver 



Add ACPI support for APM X-Gene GPIO standby driver.

Signed-off-by: default avatarY Vo <yvo@apm.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 81d49ce8

drivers/gpio/gpio-xgene-sb.c

+21 −0
Original line number Diff line number Diff line
@@ -25,8 +25,11 @@ 
#include <linux/of_gpio.h>

#include <linux/gpio.h>

#include <linux/gpio/driver.h>

#include <linux/acpi.h>

#include <linux/basic_mmio_gpio.h>



#include "gpiolib.h"



#define XGENE_MAX_GPIO_DS		22

#define XGENE_MAX_GPIO_DS_IRQ		6
@@ -128,6 +131,11 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev) 
	else

		dev_info(&pdev->dev, "X-Gene GPIO Standby driver registered\n");



	if (priv->nirq > 0) {

		/* Register interrupt handlers for gpio signaled acpi events */

		acpi_gpiochip_request_interrupts(&priv->bgc.gc);

	}



	return ret;

}
@@ -135,6 +143,10 @@ static int xgene_gpio_sb_remove(struct platform_device *pdev) 
{

	struct xgene_gpio_sb *priv = platform_get_drvdata(pdev);



	if (priv->nirq > 0) {

		acpi_gpiochip_free_interrupts(&priv->bgc.gc);

	}



	return bgpio_remove(&priv->bgc);

}
@@ -144,10 +156,19 @@ static const struct of_device_id xgene_gpio_sb_of_match[] = { 
};

MODULE_DEVICE_TABLE(of, xgene_gpio_sb_of_match);



#ifdef CONFIG_ACPI

static const struct acpi_device_id xgene_gpio_sb_acpi_match[] = {

	{"APMC0D15", 0},

	{},

};

MODULE_DEVICE_TABLE(acpi, xgene_gpio_sb_acpi_match);

#endif



static struct platform_driver xgene_gpio_sb_driver = {

	.driver = {

		   .name = "xgene-gpio-sb",

		   .of_match_table = xgene_gpio_sb_of_match,

		   .acpi_match_table = ACPI_PTR(xgene_gpio_sb_acpi_match),

		   },

	.probe = xgene_gpio_sb_probe,

	.remove = xgene_gpio_sb_remove,