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 --- changes in v2: - rename mclk0_mclk1_match to mclk0_is_mclk1 - skip MCLK0 when it is same as MCLK1 on master clock scanning
sound/soc/fsl/fsl_sai.c | 20 ++++++++++++++++++-- sound/soc/fsl/fsl_sai.h | 1 + 2 files changed, 19 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[] = { diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h index 4bbcd0dbe8f1..ff2619f1b214 100644 --- a/sound/soc/fsl/fsl_sai.h +++ b/sound/soc/fsl/fsl_sai.h @@ -219,6 +219,7 @@ struct fsl_sai_soc_data { bool use_imx_pcm; bool use_edma; + bool mclk0_is_mclk1; unsigned int fifo_depth; unsigned int reg_offset; };