At Tue, 19 Feb 2008 16:04:18 +0000,
Mark Brown wrote:
>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> Cc: Takashi Iwai <tiwai@xxxxxxx>
Acked-by: Takashi Iwai <tiwai@xxxxxxx>
> Cc: alsa-devel@xxxxxxxxxxxxxxxx
> ---
> 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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>
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