diff options
| author | eric miao <eric.y.miao@gmail.com> | 2008-05-26 03:28:09 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-07-07 13:23:37 +0100 |
| commit | 5a2cc50f166babc26103279c4fbc9f2bf73b79de (patch) | |
| tree | 448deb1c6f70a57957deeb720bed775fde362ef7 /sound/soc/pxa/pxa2xx-i2s.c | |
| parent | b8291ad07a7f3b5b990900f0001198ac23ba893e (diff) | |
[ARM] 5063/1: pxa: add clk support for pxa2xx I2S
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'sound/soc/pxa/pxa2xx-i2s.c')
| -rw-r--r-- | sound/soc/pxa/pxa2xx-i2s.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c index 425071030970..e130346732ba 100644 --- a/sound/soc/pxa/pxa2xx-i2s.c +++ b/sound/soc/pxa/pxa2xx-i2s.c @@ -18,6 +18,7 @@ #include <linux/module.h> #include <linux/device.h> #include <linux/delay.h> +#include <linux/clk.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/initval.h> @@ -40,6 +41,7 @@ struct pxa_i2s_port { u32 fmt; }; static struct pxa_i2s_port pxa_i2s; +static struct clk *clk_i2s; static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = { .name = "I2S PCM Stereo out", @@ -82,6 +84,10 @@ static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + clk_i2s = clk_get(NULL, "I2SCLK"); + if (IS_ERR(clk_i2s)) + return PTR_ERR(clk_i2s); + if (!cpu_dai->active) { SACR0 |= SACR0_RST; SACR0 = 0; @@ -149,7 +155,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream, pxa_gpio_mode(gpio_bus[pxa_i2s.master].tx); pxa_gpio_mode(gpio_bus[pxa_i2s.master].frm); pxa_gpio_mode(gpio_bus[pxa_i2s.master].clk); - pxa_set_cken(CKEN_I2S, 1); + clk_enable(clk_i2s); pxa_i2s_wait(); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) @@ -234,8 +240,10 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream) if (SACR1 & (SACR1_DREC | SACR1_DRPL)) { SACR0 &= ~SACR0_ENB; pxa_i2s_wait(); - pxa_set_cken(CKEN_I2S, 0); + clk_disable(clk_i2s); } + + clk_put(clk_i2s); } #ifdef CONFIG_PM |