diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2020-11-19 14:40:38 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-11-19 13:00:01 +0000 |
| commit | 53233e40c142b1e0e1df9d9ac0ffc0945cfffbc9 (patch) | |
| tree | ee8856d56310af5c7a6d5d2ae208ab53d236cee8 /sound/soc/fsl/fsl_sai.c | |
| parent | 61349f0f2715d08f9ab4448bc9004810fc74b531 (diff) | |
ASoC: fsl_sai: Correct the clock source for mclk0
On VF610, mclk0 = bus_clk;
On i.MX6SX/6UL/6ULL/7D, mclk0 = mclk1;
On i.MX7ULP, mclk0 = bus_clk;
On i.MX8QM/8QXP, mclk0 = bus_clk;
On i.MX8MQ/8MN/8MM/8MP, mclk0 = bus_clk;
So add variable mclk0_is_mclk1 in fsl_sai_soc_data to
distinguish these platforms.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1605768038-4582-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_sai.c')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 3e5c1eaccd5e..f3d3d20d35d7 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -359,7 +359,14 @@ static int fsl_sai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq) if (sai->is_slave_mode) return 0; - for (id = 0; id < FSL_SAI_MCLK_MAX; id++) { + /* + * There is no point in polling MCLK0 if it is identical to MCLK1. + * And given that MQS use case has to use MCLK1 though two clocks + * are the same, we simply skip MCLK0 and start to find from MCLK1. + */ + id = sai->soc_data->mclk0_is_mclk1 ? 1 : 0; + + for (; id < FSL_SAI_MCLK_MAX; id++) { clk_rate = clk_get_rate(sai->mclk_clk[id]); if (!clk_rate) continue; @@ -1040,7 +1047,6 @@ static int fsl_sai_probe(struct platform_device *pdev) sai->bus_clk = NULL; } - sai->mclk_clk[0] = sai->bus_clk; for (i = 1; i < FSL_SAI_MCLK_MAX; i++) { sprintf(tmp, "mclk%d", i); sai->mclk_clk[i] = devm_clk_get(&pdev->dev, tmp); @@ -1051,6 +1057,11 @@ static int fsl_sai_probe(struct platform_device *pdev) } } + if (sai->soc_data->mclk0_is_mclk1) + sai->mclk_clk[0] = sai->mclk_clk[1]; + else + sai->mclk_clk[0] = sai->bus_clk; + irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; @@ -1165,6 +1176,7 @@ static const struct fsl_sai_soc_data fsl_sai_vf610_data = { .use_edma = false, .fifo_depth = 32, .reg_offset = 0, + .mclk0_is_mclk1 = false, }; static const struct fsl_sai_soc_data fsl_sai_imx6sx_data = { @@ -1172,6 +1184,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx6sx_data = { .use_edma = false, .fifo_depth = 32, .reg_offset = 0, + .mclk0_is_mclk1 = true, }; static const struct fsl_sai_soc_data fsl_sai_imx7ulp_data = { @@ -1179,6 +1192,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx7ulp_data = { .use_edma = false, .fifo_depth = 16, .reg_offset = 8, + .mclk0_is_mclk1 = false, }; static const struct fsl_sai_soc_data fsl_sai_imx8mq_data = { @@ -1186,6 +1200,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx8mq_data = { .use_edma = false, .fifo_depth = 128, .reg_offset = 8, + .mclk0_is_mclk1 = false, }; static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = { @@ -1193,6 +1208,7 @@ static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = { .use_edma = true, .fifo_depth = 64, .reg_offset = 0, + .mclk0_is_mclk1 = false, }; static const struct of_device_id fsl_sai_ids[] = { |