diff options
| author | Y Vo <yvo@apm.com> | 2015-05-29 16:52:41 +0700 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-06-02 14:52:00 +0200 |
| commit | 733cf014f02040b3ad5864f3fd73d50d49c84b49 (patch) | |
| tree | 35bb367c613a3f49d25a20484fdef1bc0dcc43d9 /drivers/gpio/gpio-xgene-sb.c | |
| parent | 81d49ce8a8c1978009ec02963d1b0926a1d5f1d4 (diff) | |
| download | linux-733cf014f02040b3ad5864f3fd73d50d49c84b49.tar.bz2 | |
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: Y Vo <yvo@apm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-xgene-sb.c')
| -rw-r--r-- | drivers/gpio/gpio-xgene-sb.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index a7b8f8f0bf70..d57068b9083e 100644 --- a/drivers/gpio/gpio-xgene-sb.c +++ b/drivers/gpio/gpio-xgene-sb.c @@ -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, |