xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge remote-tracking branch 'asoc/topic/pxa' into asoc-next

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This commit is contained in:
Mark Brown
2013-02-11 11:06:39 +00:00
parent f0fab49461 053fe0f166
commit f8843c91c6
3 changed files with 28 additions and 38 deletions
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20
arch/arm/mach-pxa/pxa27x.c
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@@ -53,17 +53,25 @@ static unsigned long ac97_reset_config[] = {
GPIO95_AC97_nRESET,
};
void pxa27x_assert_ac97reset(int reset_gpio, int on)
void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio)
{
/*
* This helper function is used to work around a bug in the pxa27x's
* ac97 controller during a warm reset. The configuration of the
* reset_gpio is changed as follows:
* to_gpio == true: configured to generic output gpio and driven high
* to_gpio == false: configured to ac97 controller alt fn AC97_nRESET
*/
if (reset_gpio == 113)
pxa2xx_mfp_config(on ? &ac97_reset_config[0] :
&ac97_reset_config[1], 1);
pxa2xx_mfp_config(to_gpio ? &ac97_reset_config[0] :
&ac97_reset_config[1], 1);
if (reset_gpio == 95)
pxa2xx_mfp_config(on ? &ac97_reset_config[2] :
&ac97_reset_config[3], 1);
pxa2xx_mfp_config(to_gpio ? &ac97_reset_config[2] :
&ac97_reset_config[3], 1);
}
EXPORT_SYMBOL_GPL(pxa27x_assert_ac97reset);
EXPORT_SYMBOL_GPL(pxa27x_configure_ac97reset);
/* Crystal clock: 13MHz */
#define BASE_CLK 13000000