From: Sugar Zhang Date: Thu, 8 Oct 2015 12:40:09 +0000 (+0800) Subject: ASoC: rockchip: i2s: share tx/rx lrck when symmetric_rates enabled X-Git-Tag: v4.14-rc1~4199^2~9^2^4~5^4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b3f2dcddd576a2a6e59c407109610206c4062c8f;p=platform%2Fkernel%2Flinux-rpi.git ASoC: rockchip: i2s: share tx/rx lrck when symmetric_rates enabled share lrck_tx to lrck_rx when symmetric_rates enabled. Signed-off-by: Sugar Zhang Signed-off-by: Mark Brown --- diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index f07833b..58ee645 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -226,6 +226,7 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct rk_i2s_dev *i2s = to_info(dai); + struct snd_soc_pcm_runtime *rtd = substream->private_data; unsigned int val = 0; switch (params_format(params)) { @@ -278,6 +279,13 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK, I2S_DMACR_RDL(16)); + val = I2S_CKR_TRCM_TXRX; + if (dai->driver->symmetric_rates || rtd->dai_link->symmetric_rates) + val = I2S_CKR_TRCM_TXSHARE; + + regmap_update_bits(i2s->regmap, I2S_CKR, + I2S_CKR_TRCM_MASK, + val); return 0; } diff --git a/sound/soc/rockchip/rockchip_i2s.h b/sound/soc/rockchip/rockchip_i2s.h index a54ee35..dc6e2c7 100644 --- a/sound/soc/rockchip/rockchip_i2s.h +++ b/sound/soc/rockchip/rockchip_i2s.h @@ -78,6 +78,12 @@ * CKR * clock generation register */ +#define I2S_CKR_TRCM_SHIFT 28 +#define I2S_CKR_TRCM(x) (x << I2S_CKR_TRCM_SHIFT) +#define I2S_CKR_TRCM_TXRX (0 << I2S_CKR_TRCM_SHIFT) +#define I2S_CKR_TRCM_TXSHARE (1 << I2S_CKR_TRCM_SHIFT) +#define I2S_CKR_TRCM_RXSHARE (2 << I2S_CKR_TRCM_SHIFT) +#define I2S_CKR_TRCM_MASK (3 << I2S_CKR_TRCM_SHIFT) #define I2S_CKR_MSS_SHIFT 27 #define I2S_CKR_MSS_MASTER (0 << I2S_CKR_MSS_SHIFT) #define I2S_CKR_MSS_SLAVE (1 << I2S_CKR_MSS_SHIFT)