linux-kernel - [PATCH 6/6] ASoC: amd: Added hw

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Message-ID: <20200727145840.25142-6-Vishnuvardhanrao.Ravulapati@amd.com>
Date:   Mon, 27 Jul 2020 20:28:31 +0530
From:   Ravulapati Vishnu vardhan rao 
        <Vishnuvardhanrao.Ravulapati@....com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <Alexander.Deucher@....com>,
        Ravulapati Vishnu vardhan rao 
        <Vishnuvardhanrao.Ravulapati@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        "Takashi Iwai" <tiwai@...e.com>,
        Akshu Agrawal <akshu.agrawal@....com>,
        "Kuninori Morimoto" <kuninori.morimoto.gx@...esas.com>,
        YueHaibing <yuehaibing@...wei.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/6] ASoC: amd: Added hw_params support for ALC1015

Adding rt1015 hw_params which set Bit-clock ratio PLL and appropriate
sys clk specific with RTK1015.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@....com>
---
 sound/soc/amd/acp3x-rt5682-max9836.c | 39 ++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/sound/soc/amd/acp3x-rt5682-max9836.c b/sound/soc/amd/acp3x-rt5682-max9836.c
index 607205cb3a98..bf635ae928ae 100644
--- a/sound/soc/amd/acp3x-rt5682-max9836.c
+++ b/sound/soc/amd/acp3x-rt5682-max9836.c
@@ -126,6 +126,44 @@ static int rt5682_clk_enable(struct snd_pcm_substream *substream)
 	return ret;
 }
 
+static int acp3x_1015_hw_params(struct snd_pcm_substream *substream,
+					struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai;
+	int srate, i, ret;
+
+	ret = 0;
+	srate = params_rate(params);
+
+	for (i = 0; i < rtd->num_codecs; i++) {
+		if (strcmp(rtd->codec_dais[i]->name, "rt1015-aif"))
+			continue;
+		codec_dai = rtd->codec_dais[i];
+
+		ret = snd_soc_dai_set_bclk_ratio(codec_dai, 64);
+		if (ret < 0) {
+			dev_err(codec_dai->dev,
+				"codec_dai bclk ratio not set\n");
+			return ret;
+		}
+		ret = snd_soc_dai_set_pll(codec_dai, 0, RT1015_PLL_S_BCLK,
+						64 * srate, 256 * srate);
+		if (ret < 0) {
+			dev_err(codec_dai->dev, "codec_dai PLL not set\n");
+			return ret;
+		}
+		ret = snd_soc_dai_set_sysclk(codec_dai, RT1015_SCLK_S_PLL,
+					256 * srate, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(codec_dai->dev,
+					"codec_dai sys clock not set\n");
+			return ret;
+		}
+	}
+	return ret;
+}
+
 static void rt5682_clk_disable(void)
 {
 	clk_disable_unprepare(rt5682_dai_wclk);
@@ -231,6 +269,7 @@ static const struct snd_soc_ops acp3x_5682_ops = {
 static const struct snd_soc_ops acp3x_max_play_ops = {
 	.startup = acp3x_max_startup,
 	.shutdown = rt5682_shutdown,
+	.hw_params = acp3x_1015_hw_params,
 };
 
 static const struct snd_soc_ops acp3x_ec_cap0_ops = {
-- 
2.17.1