diff options
| author | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-03-06 14:57:16 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-03-06 14:57:16 +0800 |
| commit | af829310e8a914ad17ed61a7b18b14b4f457bca1 (patch) | |
| tree | e9200b9214a59e7b12396b1f30f770ec543d8d31 /arch/arm | |
| parent | 0c7de34be3e1f0c3031f9e0c23d3d7e51db317ba (diff) | |
| download | linux-af829310e8a914ad17ed61a7b18b14b4f457bca1.tar.gz linux-af829310e8a914ad17ed61a7b18b14b4f457bca1.tar.bz2 linux-af829310e8a914ad17ed61a7b18b14b4f457bca1.zip | |
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 <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-pxa/mfp-pxa2xx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index f14775536b83..29b62afc6f7c 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 |