diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch | 209 |
1 files changed, 104 insertions, 105 deletions
diff --git a/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch b/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch index 25262bd68d..f38dcf6db3 100644 --- a/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch +++ b/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch @@ -18,7 +18,7 @@ Support for BCM47XX based boards --- a/arch/mips/bcm47xx/gpio.c +++ b/arch/mips/bcm47xx/gpio.c -@@ -4,81 +4,198 @@ +@@ -4,83 +4,150 @@ * for more details. * * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net> @@ -62,10 +62,20 @@ - if (ssb_extif_available(&bcm47xx_bus.ssb.extif) && - ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES)) - return -EINVAL; +- +- if (test_and_set_bit(gpio, gpio_in_use)) +- return -EBUSY; +- +- return 0; + return ssb_gpio_in(&bcm47xx_bus.ssb, mask); -+#endif -+#ifdef CONFIG_BCM47XX_BCMA -+ case BCM47XX_BUS_TYPE_BCMA: + #endif + #ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: +- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) +- return -EINVAL; +- +- if (test_and_set_bit(gpio, gpio_in_use)) +- return -EBUSY; + return bcma_gpio_in(&bcm47xx_bus.bcma.bus, mask); +#endif + } @@ -73,8 +83,7 @@ +} +EXPORT_SYMBOL(bcm47xx_gpio_in); -- if (test_and_set_bit(gpio, gpio_in_use)) -- return -EBUSY; +- return 0; +u32 bcm47xx_gpio_out(u32 mask, u32 value) +{ + switch (bcm47xx_bus_type) { @@ -85,24 +94,26 @@ +#ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: + return bcma_gpio_out(&bcm47xx_bus.bcma.bus, mask, value); -+#endif -+ } -+ return -EINVAL; -+} + #endif + } + return -EINVAL; + } +-EXPORT_SYMBOL(gpio_request); +EXPORT_SYMBOL(bcm47xx_gpio_out); -- return 0; +-void gpio_free(unsigned gpio) +u32 bcm47xx_gpio_outen(u32 mask, u32 value) -+{ -+ switch (bcm47xx_bus_type) { -+#ifdef CONFIG_BCM47XX_SSB -+ case BCM47XX_BUS_TYPE_SSB: + { + switch (bcm47xx_bus_type) { + #ifdef CONFIG_BCM47XX_SSB + case BCM47XX_BUS_TYPE_SSB: +- if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) && +- ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES)) +- return; + return ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value); - #endif - #ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: -- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) -- return -EINVAL; ++#endif ++#ifdef CONFIG_BCM47XX_BCMA ++ case BCM47XX_BUS_TYPE_BCMA: + return bcma_gpio_outen(&bcm47xx_bus.bcma.bus, mask, value); +#endif + } @@ -110,8 +121,9 @@ +} +EXPORT_SYMBOL(bcm47xx_gpio_outen); -- if (test_and_set_bit(gpio, gpio_in_use)) -- return -EBUSY; +- if (ssb_extif_available(&bcm47xx_bus.ssb.extif) && +- ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES)) +- return; +u32 bcm47xx_gpio_control(u32 mask, u32 value) +{ + switch (bcm47xx_bus_type) { @@ -128,46 +140,45 @@ +} +EXPORT_SYMBOL(bcm47xx_gpio_control); -- return 0; +- clear_bit(gpio, gpio_in_use); +- return; +u32 bcm47xx_gpio_intmask(u32 mask, u32 value) +{ + switch (bcm47xx_bus_type) { +#ifdef CONFIG_BCM47XX_SSB + case BCM47XX_BUS_TYPE_SSB: + return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value); -+#endif -+#ifdef CONFIG_BCM47XX_BCMA -+ case BCM47XX_BUS_TYPE_BCMA: -+ return bcma_gpio_intmask(&bcm47xx_bus.bcma.bus, mask, value); #endif - } - return -EINVAL; - } --EXPORT_SYMBOL(gpio_request); + #ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: +- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) +- return; ++ return bcma_gpio_intmask(&bcm47xx_bus.bcma.bus, mask, value); ++#endif ++ } ++ return -EINVAL; ++} +EXPORT_SYMBOL(bcm47xx_gpio_intmask); --void gpio_free(unsigned gpio) +- clear_bit(gpio, gpio_in_use); +- return; +u32 bcm47xx_gpio_polarity(u32 mask, u32 value) - { - switch (bcm47xx_bus_type) { - #ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: -- if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) && -- ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES)) -- return; ++{ ++ switch (bcm47xx_bus_type) { ++#ifdef CONFIG_BCM47XX_SSB ++ case BCM47XX_BUS_TYPE_SSB: + return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value); +#endif +#ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: + return bcma_gpio_polarity(&bcm47xx_bus.bcma.bus, mask, value); -+#endif -+ } + #endif + } + return -EINVAL; +} +EXPORT_SYMBOL(bcm47xx_gpio_polarity); + + -+ +static int bcm47xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio) +{ + return bcm47xx_gpio_in(1 << gpio); @@ -194,7 +205,19 @@ + /* then set the gpio mode */ + bcm47xx_gpio_outen(1 << gpio, 1 << gpio); + return 0; -+} + } +-EXPORT_SYMBOL(gpio_free); + +-int gpio_to_irq(unsigned gpio) ++static int bcm47xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio) + { + switch (bcm47xx_bus_type) { + #ifdef CONFIG_BCM47XX_SSB +@@ -99,4 +166,55 @@ int gpio_to_irq(unsigned gpio) + } + return -EINVAL; + } +-EXPORT_SYMBOL_GPL(gpio_to_irq); + +static struct gpio_chip bcm47xx_gpio_chip = { + .label = "bcm47xx", @@ -202,41 +225,33 @@ + .set = bcm47xx_gpio_set_value, + .direction_input = bcm47xx_gpio_direction_input, + .direction_output = bcm47xx_gpio_direction_output, ++ .to_irq = bcm47xx_gpio_to_irq, + .base = 0, +}; - -- if (ssb_extif_available(&bcm47xx_bus.ssb.extif) && -- ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES)) -- return; ++ +void __init bcm47xx_gpio_init(void) +{ + int err; - -- clear_bit(gpio, gpio_in_use); -- return; ++ + switch (bcm47xx_bus_type) { +#ifdef CONFIG_BCM47XX_SSB + case BCM47XX_BUS_TYPE_SSB: + bcm47xx_gpio_count = ssb_gpio_count(&bcm47xx_bus.ssb); - #endif - #ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: -- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES) -- return; -- -- clear_bit(gpio, gpio_in_use); -- return; ++ break; ++#endif ++#ifdef CONFIG_BCM47XX_BCMA ++ case BCM47XX_BUS_TYPE_BCMA: + bcm47xx_gpio_count = bcma_gpio_count(&bcm47xx_bus.bcma.bus); - #endif - } ++ break; ++#endif ++ } + + bcm47xx_gpio_chip.ngpio = bcm47xx_gpio_count; + + err = gpiochip_add(&bcm47xx_gpio_chip); + if (err) + panic("cannot add BCM47xx GPIO chip, error=%d", err); - } --EXPORT_SYMBOL(gpio_free); ++} + +int gpio_get_value(unsigned gpio) +{ @@ -255,22 +270,6 @@ + __gpio_set_value(gpio, value); +} +EXPORT_SYMBOL(gpio_set_value); - - int gpio_to_irq(unsigned gpio) - { -@@ -99,4 +216,11 @@ int gpio_to_irq(unsigned gpio) - } - return -EINVAL; - } --EXPORT_SYMBOL_GPL(gpio_to_irq); -+EXPORT_SYMBOL(gpio_to_irq); -+ -+int irq_to_gpio(unsigned irq) -+{ -+ /* FIXME */ -+ return -EINVAL; -+} -+EXPORT_SYMBOL(irq_to_gpio); --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -344,6 +344,8 @@ void __init plat_mem_setup(void) @@ -298,7 +297,7 @@ + err = gpio_request(WGT634U_GPIO_RESET, "reset-buton"); + if (err) { -+ printk(KERN_INFO "Can not register gpio fir reset button\n"); ++ printk(KERN_INFO "Can not register gpio for reset button\n"); + return 0; + } + @@ -316,7 +315,7 @@ #endif /* __ASM_BCM47XX_H */ --- a/arch/mips/include/asm/mach-bcm47xx/gpio.h +++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h -@@ -4,152 +4,39 @@ +@@ -4,152 +4,42 @@ * for more details. * * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net> @@ -336,9 +335,7 @@ -extern int gpio_request(unsigned gpio, const char *label); -extern void gpio_free(unsigned gpio); -extern int gpio_to_irq(unsigned gpio); -+#define ARCH_NR_GPIOS 64 -+#include <asm-generic/gpio.h> - +- -static inline int gpio_get_value(unsigned gpio) -{ - switch (bcm47xx_bus_type) { @@ -381,6 +378,14 @@ -{ - return 0; -} +- +-static inline int gpio_is_valid(unsigned gpio) +-{ +- return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES); +-} ++#define ARCH_NR_GPIOS 64 ++#include <asm-generic/gpio.h> + +/* low level BCM47xx gpio api */ +u32 bcm47xx_gpio_in(u32 mask); +u32 bcm47xx_gpio_out(u32 mask, u32 value); @@ -389,19 +394,8 @@ +u32 bcm47xx_gpio_intmask(u32 mask, u32 value); +u32 bcm47xx_gpio_polarity(u32 mask, u32 value); --static inline int gpio_is_valid(unsigned gpio) --{ -- return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES); --} -+int gpio_to_irq(unsigned gpio); -+int irq_to_gpio(unsigned irq); -+int gpio_get_value(unsigned gpio); -+void gpio_set_value(unsigned gpio, int value); - -- -static inline int gpio_direction_input(unsigned gpio) -+static inline void gpio_intmask(unsigned gpio, int value) - { +-{ - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: @@ -416,11 +410,12 @@ -#endif - } - return -EINVAL; -+ bcm47xx_gpio_intmask(1 << gpio, value ? 1 << gpio : 0); - } +-} ++int gpio_get_value(unsigned gpio); ++void gpio_set_value(unsigned gpio, int value); -static inline int gpio_direction_output(unsigned gpio, int value) -+static inline void gpio_polarity(unsigned gpio, int value) ++static inline void gpio_intmask(unsigned gpio, int value) { - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB @@ -444,11 +439,12 @@ -#endif - } - return -EINVAL; -+ bcm47xx_gpio_polarity(1 << gpio, value ? 1 << gpio : 0); ++ bcm47xx_gpio_intmask(1 << gpio, value ? 1 << gpio : 0); } -static inline int gpio_intmask(unsigned gpio, int value) --{ ++static inline void gpio_polarity(unsigned gpio, int value) + { - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: @@ -464,10 +460,12 @@ -#endif - } - return -EINVAL; --} -- ++ bcm47xx_gpio_polarity(1 << gpio, value ? 1 << gpio : 0); + } + -static inline int gpio_polarity(unsigned gpio, int value) --{ ++static inline int irq_to_gpio(int gpio) + { - switch (bcm47xx_bus_type) { -#ifdef CONFIG_BCM47XX_SSB - case BCM47XX_BUS_TYPE_SSB: @@ -482,9 +480,10 @@ - return 0; -#endif - } -- return -EINVAL; --} + return -EINVAL; + } +#define gpio_cansleep __gpio_cansleep ++#define gpio_to_irq __gpio_to_irq #endif /* __BCM47XX_GPIO_H */ |