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author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-22 11:17:26 +0000 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-22 11:17:26 +0000 |
commit | f9b44121b34174ae4f243a568393fc3225842e75 (patch) | |
tree | 943f68cd7458d08a9e8809ed0a10b71b23911f3e /sound/arm | |
parent | 8727b909bb2348d29e62c599cd7a5d610da3760f (diff) | |
parent | 220bf991b0366cc50a94feede3d7341fa5710ee4 (diff) | |
download | linux-stable-f9b44121b34174ae4f243a568393fc3225842e75.tar.gz linux-stable-f9b44121b34174ae4f243a568393fc3225842e75.tar.bz2 linux-stable-f9b44121b34174ae4f243a568393fc3225842e75.zip |
Merge commit 'v2.6.34-rc2' into for-2.6.34
Diffstat (limited to 'sound/arm')
-rw-r--r-- | sound/arm/pxa2xx-ac97-lib.c | 68 |
1 files changed, 6 insertions, 62 deletions
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index 6fdca97186e7..88eec3847df2 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -22,7 +22,6 @@ #include <asm/irq.h> #include <mach/regs-ac97.h> -#include <mach/pxa2xx-gpio.h> #include <mach/audio.h> static DEFINE_MUTEX(car_mutex); @@ -32,6 +31,8 @@ static struct clk *ac97_clk; static struct clk *ac97conf_clk; static int reset_gpio; +extern void pxa27x_assert_ac97reset(int reset_gpio, int on); + /* * Beware PXA27x bugs: * @@ -42,45 +43,6 @@ static int reset_gpio; * 1 jiffy timeout if interrupt never comes). */ -enum { - RESETGPIO_FORCE_HIGH, - RESETGPIO_FORCE_LOW, - RESETGPIO_NORMAL_ALTFUNC -}; - -/** - * set_resetgpio_mode - computes and sets the AC97_RESET gpio mode on PXA - * @mode: chosen action - * - * As the PXA27x CPUs suffer from a AC97 bug, a manual control of the reset line - * must be done to insure proper work of AC97 reset line. This function - * computes the correct gpio_mode for further use by reset functions, and - * applied the change through pxa_gpio_mode. - */ -static void set_resetgpio_mode(int resetgpio_action) -{ - int mode = 0; - - if (reset_gpio) - switch (resetgpio_action) { - case RESETGPIO_NORMAL_ALTFUNC: - if (reset_gpio == 113) - mode = 113 | GPIO_ALT_FN_2_OUT; - if (reset_gpio == 95) - mode = 95 | GPIO_ALT_FN_1_OUT; - break; - case RESETGPIO_FORCE_LOW: - mode = reset_gpio | GPIO_OUT | GPIO_DFLT_LOW; - break; - case RESETGPIO_FORCE_HIGH: - mode = reset_gpio | GPIO_OUT | GPIO_DFLT_HIGH; - break; - }; - - if (mode) - pxa_gpio_mode(mode); -} - unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { unsigned short val = -1; @@ -174,12 +136,11 @@ static inline void pxa_ac97_warm_pxa27x(void) { gsr_bits = 0; - /* warm reset broken on Bulverde, - so manually keep AC97 reset high */ - set_resetgpio_mode(RESETGPIO_FORCE_HIGH); + /* warm reset broken on Bulverde, so manually keep AC97 reset high */ + pxa27x_assert_ac97reset(reset_gpio, 1); udelay(10); GCR |= GCR_WARM_RST; - set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC); + pxa27x_assert_ac97reset(reset_gpio, 0); udelay(500); } @@ -345,16 +306,6 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_suspend); int pxa2xx_ac97_hw_resume(void) { - if (cpu_is_pxa25x() || cpu_is_pxa27x()) { - pxa_gpio_mode(GPIO31_SYNC_AC97_MD); - pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD); - pxa_gpio_mode(GPIO28_BITCLK_AC97_MD); - pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD); - } - if (cpu_is_pxa27x()) { - /* Use GPIO 113 or 95 as AC97 Reset on Bulverde */ - set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC); - } clk_enable(ac97_clk); return 0; } @@ -386,16 +337,9 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev) reset_gpio = 113; } - if (cpu_is_pxa25x() || cpu_is_pxa27x()) { - pxa_gpio_mode(GPIO31_SYNC_AC97_MD); - pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD); - pxa_gpio_mode(GPIO28_BITCLK_AC97_MD); - pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD); - } - if (cpu_is_pxa27x()) { /* Use GPIO 113 as AC97 Reset on Bulverde */ - set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC); + pxa27x_assert_ac97reset(reset_gpio, 0); ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK"); if (IS_ERR(ac97conf_clk)) { ret = PTR_ERR(ac97conf_clk); |