[PATCH] ASoC: SAMSUNG: 24-bit audio playback on Exynos4210

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Using 256fs or 512fs will result in distortion of 24-bit
audio samples. This is because the lrclk generated is not
proper. Using 384 fs generates proper output.

Signed-off-by: Giridhar Maruthy <giridhar.maruthy@xxxxxxxxxx>
---
 sound/soc/samsung/smdk_wm8994.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index e7c1009..45fbe2b 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -8,6 +8,7 @@
  */
 
 #include "../codecs/wm8994.h"
+#include <sound/pcm_params.h>
 
  /*
   * Default CFG switch settings to use this driver:
@@ -44,7 +45,9 @@ static int smdk_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 
 	/* AIF1CLK should be >=3MHz for optimal performance */
-	if (params_rate(params) == 8000 || params_rate(params) == 11025)
+	if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE)
+		pll_out = params_rate(params) * 384;
+	else if (params_rate(params) == 8000 || params_rate(params) == 11025)
 		pll_out = params_rate(params) * 512;
 	else
 		pll_out = params_rate(params) * 256;
-- 
1.7.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux SoC Development]     [Linux Rockchip Development]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Linux SCSI]     [Yosemite News]

  Powered by Linux