From: Haojian Zhuang Date: Tue, 6 Mar 2012 06:57:16 +0000 (+0800) Subject: ARM: pxa: fix invalid mfp pin issue X-Git-Tag: upstream/snapshot3+hdmi~8032^2^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=af829310e8a914ad17ed61a7b18b14b4f457bca1;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git ARM: pxa: fix invalid mfp pin issue Failure is reported on hx4700 with kernel v3.3-rc1. __mfp_validate: GPIO20 is invalid pin __mfp_validate: GPIO21 is invalid pin __mfp_validate: GPIO15 is invalid pin __mfp_validate: GPIO78 is invalid pin __mfp_validate: GPIO79 is invalid pin __mfp_validate: GPIO80 is invalid pin __mfp_validate: GPIO33 is invalid pin __mfp_validate: GPIO48 is invalid pin __mfp_validate: GPIO49 is invalid pin __mfp_validate: GPIO50 is invalid pin Since pxa_last_gpio is used in mfp-pxa2xx driver. But it's only updated in pxa-gpio driver that run after mfp-pxa2xx driver. So update the pxa_last_gpio first in mfp-pxa2xx driver. Reported-by: Paul Parsons Signed-off-by: Haojian Zhuang --- diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index f147755..29b62af 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -226,6 +226,12 @@ static void __init pxa25x_mfp_init(void) { int i; + /* running before pxa_gpio_probe() */ +#ifdef CONFIG_CPU_PXA26x + pxa_last_gpio = 89; +#else + pxa_last_gpio = 84; +#endif for (i = 0; i <= pxa_last_gpio; i++) gpio_desc[i].valid = 1; @@ -295,6 +301,7 @@ static void __init pxa27x_mfp_init(void) { int i, gpio; + pxa_last_gpio = 120; /* running before pxa_gpio_probe() */ for (i = 0; i <= pxa_last_gpio; i++) { /* skip GPIO2, 5, 6, 7, 8, they are not * valid pins allow configuration