On Mon, Aug 10, 2020 at 4:39 PM Nicolin Chen nicoleotsuka@gmail.com wrote:
On Mon, Aug 10, 2020 at 04:11:43PM +0800, Shengjiu Wang wrote:
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
changes in v2
- add defer probe handler
sound/soc/fsl/fsl-asoc-card.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c index 52adedc03245..32f8f756e6bb 100644 --- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -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);Will it break existing imx-audio-cs42888 on older i.MX platforms? 'cause it overwrites cpu_priv.sysclk_freq[] that are set in "card configurations" section.
Tested, no break for imx6.
best regards wang shengjiu