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Code

[ar71xx] make all AR913x GPIO lines usable

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13509 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2008-12-04 12:17:14 +00:00
parent 59266b3466
commit b80c50f7cf
3 changed files with 23 additions and 2 deletions
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19
target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
View File

@ -22,6 +22,9 @@
static DEFINE_SPINLOCK(ar71xx_gpio_lock); static DEFINE_SPINLOCK(ar71xx_gpio_lock);
unsigned long ar71xx_gpio_count;
EXPORT_SYMBOL(ar71xx_gpio_count);
void __ar71xx_gpio_set_value(unsigned gpio, int value) void __ar71xx_gpio_set_value(unsigned gpio, int value)
{ {
unsigned long flags; unsigned long flags;
@ -129,6 +132,22 @@ void __init ar71xx_gpio_init(void)
"AR71xx GPIO controller")) "AR71xx GPIO controller"))
panic("cannot allocate AR71xx GPIO registers page"); panic("cannot allocate AR71xx GPIO registers page");
switch (ar71xx_soc) {
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
ar71xx_gpio_chip.ngpio = AR71XX_GPIO_COUNT;
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
ar71xx_gpio_chip.ngpio = AR91XX_GPIO_COUNT;
break;
default:
BUG();
}
err = gpiochip_add(&ar71xx_gpio_chip); err = gpiochip_add(&ar71xx_gpio_chip);
if (err) if (err)
panic("cannot add AR71xx GPIO chip, error=%d", err); panic("cannot add AR71xx GPIO chip, error=%d", err);

1
target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h
View File

@ -206,6 +206,7 @@ extern void ar71xx_add_device_usb(void) __init;
#define GPIO_FUNC_USB_CLK_EN BIT(0) #define GPIO_FUNC_USB_CLK_EN BIT(0)
#define AR71XX_GPIO_COUNT 16 #define AR71XX_GPIO_COUNT 16
#define AR91XX_GPIO_COUNT 22
extern void __iomem *ar71xx_gpio_base; extern void __iomem *ar71xx_gpio_base;

5
target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h
View File

@ -18,6 +18,7 @@
#include <asm/mach-ar71xx/ar71xx.h> #include <asm/mach-ar71xx/ar71xx.h>
extern unsigned long ar71xx_gpio_count;
extern void __ar71xx_gpio_set_value(unsigned gpio, int value); extern void __ar71xx_gpio_set_value(unsigned gpio, int value);
extern int __ar71xx_gpio_get_value(unsigned gpio); extern int __ar71xx_gpio_get_value(unsigned gpio);
@ -33,7 +34,7 @@ static inline int irq_to_gpio(unsigned irq)
static inline int gpio_get_value(unsigned gpio) static inline int gpio_get_value(unsigned gpio)
{ {
if (gpio < AR71XX_GPIO_COUNT) if (gpio < ar71xx_gpio_count)
return __ar71xx_gpio_get_value(gpio); return __ar71xx_gpio_get_value(gpio);
return __gpio_get_value(gpio); return __gpio_get_value(gpio);
@ -41,7 +42,7 @@ static inline int gpio_get_value(unsigned gpio)
static inline void gpio_set_value(unsigned gpio, int value) static inline void gpio_set_value(unsigned gpio, int value)
{ {
if (gpio < AR71XX_GPIO_COUNT) if (gpio < ar71xx_gpio_count)
__ar71xx_gpio_set_value(gpio, value); __ar71xx_gpio_set_value(gpio, value);
else else
__gpio_set_value(gpio, value); __gpio_set_value(gpio, value);