leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ASoC: fsl-asoc-card: Get "extal" clock rate by clk_get_rate

Browse Source 
On some platform(.e.g. i.MX8QM MEK), the "extal" clock is different
with the mclk of codec, then the clock rate is also different.
So it is better to get clock rate of "extal" rate by clk_get_rate,
don't reuse the clock rate of mclk.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/1597047103-6863-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shengjiu Wang 2020-08-10 16:11:43 +08:00 committed by Mark Brown
parent db24fa5756
commit a8fd5ca801
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/soc/fsl/fsl-asoc-card.c
View File

@ -696,6 +696,17 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
goto asrc_fail;
}
} else if (of_node_name_eq(cpu_np, "esai")) {
struct clk *esai_clk = clk_get(&cpu_pdev->dev, "extal");
if (!IS_ERR(esai_clk)) {
priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(esai_clk);
priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(esai_clk);
clk_put(esai_clk);
} else if (PTR_ERR(esai_clk) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
goto asrc_fail;
}
priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
} else if (of_node_name_eq(cpu_np, "sai")) {