diff options
Diffstat (limited to 'drivers/gpio/gpio-xgene-sb.c')
| -rw-r--r-- | drivers/gpio/gpio-xgene-sb.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index fb9d29a5d..d57068b90 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 @@ -112,7 +115,6 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev) GFP_KERNEL); if (!priv->irq) return -ENOMEM; - memset(priv->irq, 0, sizeof(u32) * XGENE_MAX_GPIO_DS); for (i = 0; i < priv->nirq; i++) { priv->irq[default_lines[i]] = platform_get_irq(pdev, i); @@ -129,6 +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; } @@ -136,6 +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); } @@ -145,10 +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, |