ASoC: rockchip: spdif: caculate sclk according BMC(bitphase mark coding).

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>

diff --git a/sound/soc/rockchip/rk_hdmi_spdif.c b/sound/soc/rockchip/rk_hdmi_spdif.c
index c8ecb84a900b64fe5bbf61c225cbdf0a0d103961..12cdaecbcce0a95bebc0693e754e5c696c6b9eb6 100755 (executable)
--- a/sound/soc/rockchip/rk_hdmi_spdif.c
+++ b/sound/soc/rockchip/rk_hdmi_spdif.c
@@ -37,35 +37,28 @@ static int rk_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-       unsigned long pll_out, rclk_rate;
+       unsigned long sclk;
        int ret, ratio;
 
        RK_SPDIF_DBG("spdif:Entered %s\n", __func__);
 
+       /* bmc: 2*32*fs*2 = 128fs */
+       ratio = 128;
        switch (params_rate(params)) {
        case 44100:
-               pll_out = 11289600;
-               break;
        case 32000:
-               pll_out = 8192000;
-               break;
        case 48000:
-               pll_out = 12288000;
-               break;
        case 96000:
-               pll_out = 24576000;
+       case 192000:
+               sclk = params_rate(params) * ratio;
                break;
        default:
                pr_err("rk_spdif: params not support\n");
                return -EINVAL;
        }
 
-       ratio = 256;
-       rclk_rate = params_rate(params) * ratio;
-
-       /* Set audio source clock rates */
        ret = snd_soc_dai_set_sysclk(cpu_dai, 0,
-                                    rclk_rate, SND_SOC_CLOCK_IN);
+                                    sclk, SND_SOC_CLOCK_IN);
        if (ret < 0)
                return ret;
 

diff --git a/sound/soc/rockchip/rk_spdif_card.c b/sound/soc/rockchip/rk_spdif_card.c
index e6149b551f3f306e019ad59ec8d9bd2a793c88b5..7bfb74c08aecff39f18b611b095ea9434cc307db 100755 (executable)
--- a/sound/soc/rockchip/rk_spdif_card.c
+++ b/sound/soc/rockchip/rk_spdif_card.c
@@ -28,33 +28,27 @@ static int rk_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-       unsigned long pll_out, rclk_rate;
+       unsigned long sclk;
        int ret, ratio;
 
+       /* bmc: 2*32*fs*2 = 128fs */
+       ratio = 128;
+
        switch (params_rate(params)) {
        case 44100:
-               pll_out = 11289600;
-               break;
        case 32000:
-               pll_out = 8192000;
-               break;
        case 48000:
-               pll_out = 12288000;
-               break;
        case 96000:
-               pll_out = 24576000;
+       case 192000:
+               sclk = params_rate(params) * ratio;
                break;
        default:
                pr_err("rk_spdif: params not support\n");
                return -EINVAL;
        }
 
-       ratio = 256;
-       rclk_rate = params_rate(params) * ratio;
-
-       /* Set audio source clock rates */
        ret = snd_soc_dai_set_sysclk(cpu_dai, 0,
-                                    rclk_rate, SND_SOC_CLOCK_IN);
+                                    sclk, SND_SOC_CLOCK_IN);
        if (ret < 0)
                return ret;