Add ACPI support for APM X-Gene GPIO standby driver.
Signed-off-by: Y Vo <yvo@xxxxxxx>
---
drivers/gpio/gpio-xgene-sb.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index b6a15c3..50aaae5 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
@@ -129,6 +132,13 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
else
dev_info(&pdev->dev, "X-Gene GPIO Standby driver registered\n");
+#ifdef CONFIG_ACPI
+ if (priv->nirq > 0) {
+ /* Register interrupt handlers for gpio signaled acpi events */
+ acpi_gpiochip_request_interrupts(&priv->bgc.gc);
+ }
+#endif
+
return ret;
}
@@ -145,10 +155,19 @@ 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,
--
1.7.1
--
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