On Mon, Aug 10, 2020 at 4:39 PM Nicolin Chen <nicoleots...@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.w...@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