target/linux/layerscape/patches-5.4/801-audio-0044-MLK-17528-3-ASoC-fsl_sai-Set-clock-rate-in-set_syscl.patch

   1 From 0d9bc2f22dc418c4573ded86278e55f97d029dca Mon Sep 17 00:00:00 2001
   2 From: Viorel Suman <viorel.suman@nxp.com>
   3 Date: Fri, 9 Feb 2018 11:39:58 +0200
   4 Subject: [PATCH] MLK-17528-3: ASoC: fsl_sai: Set clock rate in "set_sysclk"
   5  API
   6
   7 Set the requested clock rate in "set_sysclk" for specified clock id.
   8
   9 Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
  10 Suggested-by: Shengjiu Wang <shengjiu.wang@nxp.com>
  11 Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
  12 Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
  13 ---
  14  sound/soc/fsl/fsl_sai.c | 19 +++++++++++++++++++
  15  1 file changed, 19 insertions(+)
  16
  17 --- a/sound/soc/fsl/fsl_sai.c
  18 +++ b/sound/soc/fsl/fsl_sai.c
  19 @@ -245,6 +245,25 @@ static int fsl_sai_set_dai_sysclk(struct
  20                 return 0;
  21         }
  22
  23 +       if (freq > 0) {
  24 +               if (clk_id < 0 || clk_id >= FSL_SAI_MCLK_MAX) {
  25 +                       dev_err(cpu_dai->dev, "Unknown clock id: %d\n", clk_id);
  26 +                       return -EINVAL;
  27 +               }
  28 +
  29 +               if (IS_ERR_OR_NULL(sai->mclk_clk[clk_id])) {
  30 +                       dev_err(cpu_dai->dev, "Unassigned clock: %d\n", clk_id);
  31 +                       return -EINVAL;
  32 +               }
  33 +
  34 +               ret = clk_set_rate(sai->mclk_clk[clk_id], freq);
  35 +               if (ret < 0) {
  36 +                       dev_err(cpu_dai->dev, "failed to set clock rate (%u): %d\n",
  37 +                                       freq, ret);
  38 +                       return ret;
  39 +               }
  40 +       }
  41 +
  42         ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq,
  43                                         FSL_FMT_TRANSMITTER);
  44         if (ret) {