From 942de47bfee24143ecbf75b981b32143bd414529 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 4 Mar 2008 11:14:24 +0100 Subject: [ARM] 4834/3: Convert ASoC pxa2xx-ac97 driver to use the clock API Signed-off-by: Mark Brown Acked-by: Takashi Iwai Acked-by: eric miao Signed-off-by: Russell King --- sound/soc/pxa/pxa2xx-ac97.c | 49 +++++++++++++++++++++++++++++++++++---------- 1 file changed, 38 insertions(+), 11 deletions(-) (limited to 'sound/soc/pxa/pxa2xx-ac97.c') diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index 815c1533625..711b916e58a 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -35,6 +36,10 @@ static DEFINE_MUTEX(car_mutex); static DECLARE_WAIT_QUEUE_HEAD(gsr_wq); static volatile long gsr_bits; +static struct clk *ac97_clk; +#ifdef CONFIG_PXA27x +static struct clk *ac97conf_clk; +#endif /* * Beware PXA27x bugs: @@ -159,9 +164,9 @@ 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(CKEN_AC97CONF, 1); + clk_enable(ac97conf_clk); udelay(5); - pxa_set_cken(CKEN_AC97CONF, 0); + clk_disable(ac97conf_clk); GCR = GCR_COLD_RST; udelay(50); #else @@ -255,7 +260,7 @@ static int pxa2xx_ac97_suspend(struct platform_device *pdev, struct snd_soc_cpu_dai *dai) { GCR |= GCR_ACLINK_OFF; - pxa_set_cken(CKEN_AC97, 0); + clk_disable(ac97_clk); return 0; } @@ -270,7 +275,7 @@ static int pxa2xx_ac97_resume(struct platform_device *pdev, /* Use GPIO 113 as AC97 Reset on Bulverde */ pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT); #endif - pxa_set_cken(CKEN_AC97, 1); + clk_enable(ac97_clk); return 0; } @@ -294,16 +299,32 @@ static int pxa2xx_ac97_probe(struct platform_device *pdev) #ifdef CONFIG_PXA27x /* Use GPIO 113 as AC97 Reset on Bulverde */ pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT); + + ac97conf_clk = clk_get(&pdev->dev, "AC97CONFCLK"); + if (IS_ERR(ac97conf_clk)) { + ret = PTR_ERR(ac97conf_clk); + ac97conf_clk = NULL; + goto err_irq; + } #endif - pxa_set_cken(CKEN_AC97, 1); + ac97_clk = clk_get(&pdev->dev, "AC97CLK"); + if (IS_ERR(ac97_clk)) { + ret = PTR_ERR(ac97_clk); + ac97_clk = NULL; + goto err_irq; + } return 0; - err: - if (CKEN & (1 << CKEN_AC97)) { - GCR |= GCR_ACLINK_OFF; - free_irq(IRQ_AC97, NULL); - pxa_set_cken(CKEN_AC97, 0); + err_irq: + GCR |= GCR_ACLINK_OFF; +#ifdef CONFIG_PXA27x + if (ac97conf_clk) { + clk_put(ac97conf_clk); + ac97conf_clk = NULL; } +#endif + free_irq(IRQ_AC97, NULL); + err: return ret; } @@ -311,7 +332,13 @@ static void pxa2xx_ac97_remove(struct platform_device *pdev) { GCR |= GCR_ACLINK_OFF; free_irq(IRQ_AC97, NULL); - pxa_set_cken(CKEN_AC97, 0); +#ifdef CONFIG_PXA27x + clk_put(ac97conf_clk); + ac97conf_clk = NULL; +#endif + clk_disable(ac97_clk); + clk_put(ac97_clk); + ac97_clk = NULL; } static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream, -- cgit v1.2.3-70-g09d2