On 01/20/2013 12:08 AM, Nathan Hintz wrote:
> Recent changes to the brcm47xx gpio implementation result in an IRQ
> no longer being assigned to the gpio driver. This breaks the ability
> to enter failsafe, and possibly other things.
>
> Only tested on a BCMA device (SSB not tested).
>
> Signed-off-by: Nathan Hintz <nlhi...@hotmail.com>
>
> Index: target/linux/brcm47xx/patches-3.6/400-arch-bcm47xx.patch
> ===================================================================
> --- target/linux/brcm47xx/patches-3.6/400-arch-bcm47xx.patch (revision 35248)
> +++ target/linux/brcm47xx/patches-3.6/400-arch-bcm47xx.patch (working copy)
> @@ -41,7 +41,7 @@
> obj-$(CONFIG_BCM47XX_SSB) += wgt634u.o
> --- /dev/null
> +++ b/arch/mips/bcm47xx/gpio.c
> -@@ -0,0 +1,119 @@
> +@@ -0,0 +1,140 @@
> +/*
> + * This file is subject to the terms and conditions of the GNU General
> Public
> + * License. See the file "COPYING" in the main directory of this archive
> @@ -161,9 +161,38 @@
> + return -EINVAL;
> +}
> +EXPORT_SYMBOL(bcm47xx_gpio_polarity);
> ++
> ++int gpio_to_irq(unsigned gpio)
> ++{
> ++ switch (bcm47xx_bus_type) {
> ++#ifdef CONFIG_BCM47XX_SSB
> ++ case BCM47XX_BUS_TYPE_SSB:
> ++ if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco))
> ++ return ssb_mips_irq(bcm47xx_bus.ssb.chipco.dev) + 2;
> ++ else if (ssb_extif_available(&bcm47xx_bus.ssb.extif))
> ++ return ssb_mips_irq(bcm47xx_bus.ssb.extif.dev) + 2;
> ++ else
> ++ return -EINVAL;
> ++#endif
> ++#ifdef CONFIG_BCM47XX_BCMA
> ++ case BCM47XX_BUS_TYPE_BCMA:
> ++ return bcma_core_irq(bcm47xx_bus.bcma.bus.drv_cc.core);
> ++#endif
> ++ }
> ++ return -EINVAL;
> ++}
> ++EXPORT_SYMBOL_GPL(gpio_to_irq);
> --- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
> +++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
> -@@ -14,4 +14,11 @@ static inline int irq_to_gpio(unsigned i
> +@@ -7,11 +7,18 @@
> + #define gpio_set_value __gpio_set_value
> +
> + #define gpio_cansleep __gpio_cansleep
> +-#define gpio_to_irq __gpio_to_irq
> ++extern int gpio_to_irq(unsigned gpio);
> +
> + static inline int irq_to_gpio(unsigned int irq)
> + {
> return -EINVAL;
> }
>
This should be fixed with r35321.
Hauke
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