target/linux/layerscape/patches-5.4/801-audio-0031-MLK-13975-ASoC-fsl_sai-Refine-master-flag-handling.patch

   1 From 45ef8360c3ce459342994cdcfbf140e876b5490b Mon Sep 17 00:00:00 2001
   2 From: Viorel Suman <viorel.suman@nxp.com>
   3 Date: Tue, 11 Jul 2017 08:26:44 +0300
   4 Subject: [PATCH] MLK-13975: ASoC: fsl_sai: Refine master flag handling
   5
   6 The patch introduces the master flag handling
   7 as function of direction and the option to provide
   8 the flag value from DTS.
   9
  10 Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
  11 Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
  12 ---
  13  sound/soc/fsl/fsl_sai.c | 27 +++++++++++++++++++--------
  14  sound/soc/fsl/fsl_sai.h |  2 +-
  15  2 files changed, 20 insertions(+), 9 deletions(-)
  16
  17 --- a/sound/soc/fsl/fsl_sai.c
  18 +++ b/sound/soc/fsl/fsl_sai.c
  19 @@ -368,9 +368,9 @@ static int fsl_sai_set_dai_fmt(struct sn
  20         struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
  21         int ret;
  22
  23 -       if (sai->i2s_xtor)
  24 -               fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  25 -                     SND_SOC_DAIFMT_CBS_CFS;
  26 +       if (sai->masterflag[FSL_FMT_TRANSMITTER])
  27 +               fmt = (fmt & (~SND_SOC_DAIFMT_MASTER_MASK)) |
  28 +                               sai->masterflag[FSL_FMT_TRANSMITTER];
  29
  30         ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, FSL_FMT_TRANSMITTER);
  31         if (ret) {
  32 @@ -378,9 +378,9 @@ static int fsl_sai_set_dai_fmt(struct sn
  33                 return ret;
  34         }
  35
  36 -       if (sai->i2s_xtor)
  37 -               fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  38 -                     SND_SOC_DAIFMT_CBM_CFM;
  39 +       if (sai->masterflag[FSL_FMT_RECEIVER])
  40 +               fmt = (fmt & (~SND_SOC_DAIFMT_MASTER_MASK)) |
  41 +                               sai->masterflag[FSL_FMT_RECEIVER];
  42
  43         ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, FSL_FMT_RECEIVER);
  44         if (ret)
  45 @@ -1022,8 +1022,19 @@ static int fsl_sai_probe(struct platform
  46                 return -EINVAL;
  47         }
  48
  49 -       /* I2S XTOR mode */
  50 -       sai->i2s_xtor = (of_find_property(np, "fsl,i2s-xtor", NULL) != NULL);
  51 +       if ((of_find_property(np, "fsl,i2s-xtor", NULL) != NULL) ||
  52 +           (of_find_property(np, "fsl,txm-rxs", NULL) != NULL))
  53 +       {
  54 +               sai->masterflag[FSL_FMT_TRANSMITTER] = SND_SOC_DAIFMT_CBS_CFS;
  55 +               sai->masterflag[FSL_FMT_RECEIVER] = SND_SOC_DAIFMT_CBM_CFM;
  56 +       } else {
  57 +               if (!of_property_read_u32(np, "fsl,txmasterflag",
  58 +                       &sai->masterflag[FSL_FMT_TRANSMITTER]))
  59 +                       sai->masterflag[FSL_FMT_TRANSMITTER] <<= 12;
  60 +               if (!of_property_read_u32(np, "fsl,rxmasterflag",
  61 +                       &sai->masterflag[FSL_FMT_RECEIVER]))
  62 +                       sai->masterflag[FSL_FMT_RECEIVER] <<= 12;
  63 +       }
  64
  65         irq = platform_get_irq(pdev, 0);
  66         if (irq < 0) {
  67 --- a/sound/soc/fsl/fsl_sai.h
  68 +++ b/sound/soc/fsl/fsl_sai.h
  69 @@ -160,10 +160,10 @@ struct fsl_sai {
  70         bool slave_mode[2];
  71         bool is_lsb_first;
  72         bool is_dsp_mode;
  73 -       bool i2s_xtor;
  74         bool synchronous[2];
  75         bool is_stream_opened[2];
  76         unsigned int dataline[2];
  77 +       unsigned int masterflag[2];
  78
  79         unsigned int mclk_id[2];
  80         unsigned int mclk_streams;