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mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-12-25 11:02:26 +02:00
openwrt-xburst/target/linux/brcm47xx/patches-2.6.25/710-add-gpio-is-valid.patch
juhosg 115a129a30 [kernel] update to 2.6.25.12
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11933 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-07-26 10:53:23 +00:00

39 lines
1.0 KiB
Diff

Add gpio_is_valid() for bcm47xx
--- a/arch/mips/bcm47xx/gpio.c
+++ b/arch/mips/bcm47xx/gpio.c
@@ -77,3 +77,15 @@
}
EXPORT_SYMBOL_GPL(bcm47xx_gpio_direction_output);
+int bcm47xx_gpio_is_valid(int gpio)
+{
+ if (ssb_bcm47xx.chipco.dev) {
+ if (gpio >= 0 && gpio < BCM47XX_CHIPCO_GPIO_LINES)
+ return 1;
+ } else if (ssb_bcm47xx.extif.dev) {
+ if (gpio >= 0 && gpio < BCM47XX_EXTIF_GPIO_LINES)
+ return 1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcm47xx_gpio_is_valid);
--- a/include/asm-mips/mach-bcm47xx/gpio.h
+++ b/include/asm-mips/mach-bcm47xx/gpio.h
@@ -17,6 +17,7 @@
extern void bcm47xx_gpio_set_value(unsigned gpio, int value);
extern int bcm47xx_gpio_direction_input(unsigned gpio);
extern int bcm47xx_gpio_direction_output(unsigned gpio, int value);
+extern int bcm47xx_gpio_is_valid(int gpio);
static inline int gpio_request(unsigned gpio, const char *label)
{
@@ -52,6 +53,8 @@
return bcm47xx_gpio_direction_output(gpio, value);
}
+#define gpio_is_valid bcm47xx_gpio_is_valid
+
/* cansleep wrappers */
#include <asm-generic/gpio.h>