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authorMark Brown <broonie@sirena.org.uk>2008-03-04 11:14:24 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-04-19 11:29:03 +0100
commit942de47bfee24143ecbf75b981b32143bd414529 (patch)
tree48e903f99df01b5adf7f107dca644fea3ccd7c9b /sound/soc/pxa
parent93873fbfd86c08ac3e4f1b37e667cf858a8b2fab (diff)
[ARM] 4834/3: Convert ASoC pxa2xx-ac97 driver to use the clock API
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'sound/soc/pxa')
-rw-r--r--sound/soc/pxa/pxa2xx-ac97.c49
1 files changed, 38 insertions, 11 deletions
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 <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/wait.h>
+#include <linux/clk.h>
#include <linux/delay.h>
#include <sound/core.h>
@@ -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,