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| author | Michael Brunner <mibru@gmx.de> | 2007-12-04 21:39:20 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-12-08 14:36:06 +0000 |
| commit | 03d14a5536cf5611d27a106137a814c8f1135ddd (patch) | |
| tree | a36b18415d40b45db39c350fd99726df2203db70 | |
| parent | a0113a99cc3cd1a63153d11b7fcf9c1a2000df57 (diff) | |
| download | linux-3.10-03d14a5536cf5611d27a106137a814c8f1135ddd.tar.gz linux-3.10-03d14a5536cf5611d27a106137a814c8f1135ddd.tar.bz2 linux-3.10-03d14a5536cf5611d27a106137a814c8f1135ddd.zip | |
[ARM] 4690/1: PXA: fix CKEN corruption in PXA27x AC97 cold reset code
Fix CKEN register corruption in the PXA27x cold reset code
located in sound/arm/pxa27x-ac97.c. The problem has been
introduced with a pxa_set_cken() function change in linux 2.6.23.
This patch is based on patch 4527/1 that fixes the same problem in
the ASoC PXA-AC97 driver. Additionally a definition for the CKEN
index value is added and applied to both PXA AC97 drivers.
Signed-off-by: Michael Brunner <mibru@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | include/asm-arm/arch-pxa/pxa-regs.h | 1 | ||||
| -rw-r--r-- | sound/arm/pxa2xx-ac97.c | 4 | ||||
| -rw-r--r-- | sound/soc/pxa/pxa2xx-ac97.c | 4 |
3 files changed, 5 insertions, 4 deletions
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h index 6b33df6f199..1bd398da07d 100644 --- a/include/asm-arm/arch-pxa/pxa-regs.h +++ b/include/asm-arm/arch-pxa/pxa-regs.h @@ -1784,6 +1784,7 @@ #define CCCR_M_MASK 0x0060 /* Memory Frequency to Run Mode Frequency Multiplier */ #define CCCR_L_MASK 0x001f /* Crystal Frequency to Memory Frequency Multiplier */ +#define CKEN_AC97CONF (31) /* AC97 Controller Configuration */ #define CKEN_CAMERA (24) /* Camera Interface Clock Enable */ #define CKEN_SSP1 (23) /* SSP1 Unit Clock Enable */ #define CKEN_MEMC (22) /* Memory Controller Clock Enable */ diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c index 7bc2767e158..55c6c822bec 100644 --- a/sound/arm/pxa2xx-ac97.c +++ b/sound/arm/pxa2xx-ac97.c @@ -113,9 +113,9 @@ static void pxa2xx_ac97_reset(struct snd_ac97 *ac97) gsr_bits = 0; #ifdef CONFIG_PXA27x /* PXA27x Developers Manual section 13.5.2.2.1 */ - pxa_set_cken(1 << 31, 1); + pxa_set_cken(CKEN_AC97CONF, 1); udelay(5); - pxa_set_cken(1 << 31, 0); + pxa_set_cken(CKEN_AC97CONF, 0); GCR = GCR_COLD_RST; udelay(50); #else diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index dd14abcdf1b..60e6f4677f9 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -160,9 +160,9 @@ static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) gsr_bits = 0; #ifdef CONFIG_PXA27x /* PXA27x Developers Manual section 13.5.2.2.1 */ - pxa_set_cken(31, 1); + pxa_set_cken(CKEN_AC97CONF, 1); udelay(5); - pxa_set_cken(31, 0); + pxa_set_cken(CKEN_AC97CONF, 0); GCR = GCR_COLD_RST; udelay(50); #else |