At Tue, 19 Feb 2008 16:04:18 +0000, Mark Brown wrote:
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com Cc: Takashi Iwai tiwai@suse.de
Acked-by: Takashi Iwai tiwai@suse.de
Cc: alsa-devel@alsa-project.org
sound/arm/pxa2xx-ac97.c | 49 +++++++++++++++++++++++++++++++++++++++------- 1 files changed, 41 insertions(+), 8 deletions(-)
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c index 5d86e68..db08143 100644 --- a/sound/arm/pxa2xx-ac97.c +++ b/sound/arm/pxa2xx-ac97.c @@ -16,6 +16,7 @@ #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:
@@ -112,9 +117,9 @@ 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(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 @@ -259,7 +264,7 @@ static int pxa2xx_ac97_do_suspend(struct snd_card *card, pm_message_t state) if (platform_ops && platform_ops->suspend) platform_ops->suspend(platform_ops->priv); GCR |= GCR_ACLINK_OFF;
- pxa_set_cken(CKEN_AC97, 0);
clk_disable(ac97_clk);
return 0;
} @@ -268,7 +273,7 @@ static int pxa2xx_ac97_do_resume(struct snd_card *card) { pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;
- pxa_set_cken(CKEN_AC97, 1);
- clk_enable(ac97_clk); if (platform_ops && platform_ops->resume) platform_ops->resume(platform_ops->priv); snd_ac97_resume(pxa2xx_ac97_ac97);
@@ -335,8 +340,21 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) #ifdef CONFIG_PXA27x /* Use GPIO 113 as AC97 Reset on Bulverde */ pxa_gpio_mode(113 | GPIO_ALT_FN_2_OUT);
- ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK");
- if (IS_ERR(ac97conf_clk)) {
ac97conf_clk = NULL;ret = -ENODEV;goto err;- }
#endif
- pxa_set_cken(CKEN_AC97, 1);
ac97_clk = clk_get(&dev->dev, "AC97CLK");
if (IS_ERR(ac97_clk)) {
ac97_clk = NULL;ret = -ENODEV;goto err;}
clk_enable(ac97_clk);
ret = snd_ac97_bus(card, 0, &pxa2xx_ac97_ops, NULL, &ac97_bus); if (ret)
@@ -361,11 +379,20 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) err: if (card) snd_card_free(card);
- if (CKEN & (1 << CKEN_AC97)) {
- if (ac97_clk) { GCR |= GCR_ACLINK_OFF; free_irq(IRQ_AC97, NULL);
pxa_set_cken(CKEN_AC97, 0);
clk_disable(ac97_clk);clk_put(ac97_clk);ac97_clk = NULL;- }
+#ifdef CONFIG_PXA27x
- if (ac97conf_clk) {
clk_disable(ac97conf_clk);clk_put(ac97conf_clk);ac97conf_clk = NULL;+#endif return ret; }
@@ -378,7 +405,13 @@ static int __devexit pxa2xx_ac97_remove(struct platform_device *dev) platform_set_drvdata(dev, NULL); GCR |= GCR_ACLINK_OFF; free_irq(IRQ_AC97, NULL);
pxa_set_cken(CKEN_AC97, 0);
clk_disable(ac97_clk);clk_put(ac97_clk);ac97_clk = NULL;+#ifdef CONFIG_PXA27x
clk_put(ac97conf_clk);ac97conf_clk = NULL;+#endif }
return 0;
1.5.4.2
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