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MIPS: ath79: Add OF support to the GPIO driver

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Replace the simple GPIO chip registration by a platform driver
and make ath79_gpio_init() just register the device.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Alban Bedel
2015-05-31 02:18:24 +02:00
committed by Ralf Baechle
parent d6743a496c
commit 2ddf3a7922
3 changed files with 127 additions and 22 deletions
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51
arch/mips/ath79/dev-common.c
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@@ -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);
}