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;
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);
}
}
+ 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;
.use_edma = false,
.fifo_depth = 32,
.reg_offset = 0,
+ .mclk0_is_mclk1 = false,
};
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 = {
.use_edma = false,
.fifo_depth = 16,
.reg_offset = 8,
+ .mclk0_is_mclk1 = false,
};
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 = {
.use_edma = true,
.fifo_depth = 64,
.reg_offset = 0,
+ .mclk0_is_mclk1 = false,
};
static const struct of_device_id fsl_sai_ids[] = {