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Diffstat (limited to 'kernel/arch/mips/ath79/dev-common.c')
-rw-r--r--kernel/arch/mips/ath79/dev-common.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/kernel/arch/mips/ath79/dev-common.c b/kernel/arch/mips/ath79/dev-common.c
index 516225d20..9d0172a4d 100644
--- a/kernel/arch/mips/ath79/dev-common.c
+++ b/kernel/arch/mips/ath79/dev-common.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/platform_data/gpio-ath79.h>
#include <linux/serial_8250.h>
#include <linux/clk.h>
#include <linux/err.h>
@@ -106,3 +107,53 @@ void __init ath79_register_wdt(void)
platform_device_register_simple("ath79-wdt", -1, &res, 1);
}
+
+static struct ath79_gpio_platform_data ath79_gpio_pdata;
+
+static struct resource ath79_gpio_resources[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ .start = AR71XX_GPIO_BASE,
+ .end = AR71XX_GPIO_BASE + AR71XX_GPIO_SIZE - 1,
+ },
+ {
+ .start = ATH79_MISC_IRQ(2),
+ .end = ATH79_MISC_IRQ(2),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device ath79_gpio_device = {
+ .name = "ath79-gpio",
+ .id = -1,
+ .resource = ath79_gpio_resources,
+ .num_resources = ARRAY_SIZE(ath79_gpio_resources),
+ .dev = {
+ .platform_data = &ath79_gpio_pdata
+ },
+};
+
+void __init ath79_gpio_init(void)
+{
+ if (soc_is_ar71xx()) {
+ ath79_gpio_pdata.ngpios = AR71XX_GPIO_COUNT;
+ } else if (soc_is_ar7240()) {
+ ath79_gpio_pdata.ngpios = AR7240_GPIO_COUNT;
+ } else if (soc_is_ar7241() || soc_is_ar7242()) {
+ ath79_gpio_pdata.ngpios = AR7241_GPIO_COUNT;
+ } else if (soc_is_ar913x()) {
+ ath79_gpio_pdata.ngpios = AR913X_GPIO_COUNT;
+ } else if (soc_is_ar933x()) {
+ ath79_gpio_pdata.ngpios = AR933X_GPIO_COUNT;
+ } else if (soc_is_ar934x()) {
+ ath79_gpio_pdata.ngpios = AR934X_GPIO_COUNT;
+ ath79_gpio_pdata.oe_inverted = 1;
+ } else if (soc_is_qca955x()) {
+ ath79_gpio_pdata.ngpios = QCA955X_GPIO_COUNT;
+ ath79_gpio_pdata.oe_inverted = 1;
+ } else {
+ BUG();
+ }
+
+ platform_device_register(&ath79_gpio_device);
+}