diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/801-audio-0071-MLK-21957-2-ASoC-fsl_sai-read-SAI-version-and-params.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/801-audio-0071-MLK-21957-2-ASoC-fsl_sai-read-SAI-version-and-params.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/801-audio-0071-MLK-21957-2-ASoC-fsl_sai-read-SAI-version-and-params.patch b/target/linux/layerscape/patches-5.4/801-audio-0071-MLK-21957-2-ASoC-fsl_sai-read-SAI-version-and-params.patch new file mode 100644 index 0000000000..005f4b507f --- /dev/null +++ b/target/linux/layerscape/patches-5.4/801-audio-0071-MLK-21957-2-ASoC-fsl_sai-read-SAI-version-and-params.patch @@ -0,0 +1,92 @@ +From 34a1cd97a2ef6f68a12ff2f2fd813548e867f72f Mon Sep 17 00:00:00 2001 +From: Viorel Suman <viorel.suman@nxp.com> +Date: Thu, 20 Jun 2019 13:25:15 +0300 +Subject: [PATCH] MLK-21957-2: ASoC: fsl_sai: read SAI version and params in + probe + +Read SAI IP version and parameters in probe function. + +Signed-off-by: Viorel Suman <viorel.suman@nxp.com> +--- + sound/soc/fsl/fsl_sai.c | 30 ++++++++++++++++++++---------- + 1 file changed, 20 insertions(+), 10 deletions(-) + +--- a/sound/soc/fsl/fsl_sai.c ++++ b/sound/soc/fsl/fsl_sai.c +@@ -465,11 +465,12 @@ static int fsl_sai_set_dai_fmt(struct sn + return ret; + } + +-static int fsl_sai_check_ver(struct snd_soc_dai *cpu_dai) ++static int fsl_sai_check_ver(struct device *dev) + { +- struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev); ++ struct fsl_sai *sai = dev_get_drvdata(dev); + unsigned char offset = sai->soc->reg_offset; + unsigned int val; ++ int ret; + + if (FSL_SAI_TCSR(offset) == FSL_SAI_VERID) + return 0; +@@ -477,16 +478,21 @@ static int fsl_sai_check_ver(struct snd_ + if (sai->verid.loaded) + return 0; + +- sai->verid.loaded = true; +- regmap_read(sai->regmap, FSL_SAI_VERID, &val); +- dev_dbg(cpu_dai->dev, "VERID: 0x%016X\n", val); ++ ret = regmap_read(sai->regmap, FSL_SAI_VERID, &val); ++ if (ret < 0) ++ return ret; ++ ++ dev_dbg(dev, "VERID: 0x%016X\n", val); + + sai->verid.id = (val & FSL_SAI_VER_ID_MASK) >> FSL_SAI_VER_ID_SHIFT; + sai->verid.extfifo_en = (val & FSL_SAI_VER_EFIFO_EN); + sai->verid.timestamp_en = (val & FSL_SAI_VER_TSTMP_EN); + +- regmap_read(sai->regmap, FSL_SAI_PARAM, &val); +- dev_dbg(cpu_dai->dev, "PARAM: 0x%016X\n", val); ++ ret = regmap_read(sai->regmap, FSL_SAI_PARAM, &val); ++ if (ret < 0) ++ return ret; ++ ++ dev_dbg(dev, "PARAM: 0x%016X\n", val); + + /* max slots per frame, power of 2 */ + sai->param.spf = 1 << +@@ -499,11 +505,13 @@ static int fsl_sai_check_ver(struct snd_ + /* number of datalines implemented */ + sai->param.dln = val & FSL_SAI_PAR_DLN_MASK; + +- dev_dbg(cpu_dai->dev, ++ dev_dbg(dev, + "Version: 0x%08X, SPF: %u, WPF: %u, DLN: %u\n", + sai->verid.id, sai->param.spf, sai->param.wpf, sai->param.dln + ); + ++ sai->verid.loaded = true; ++ + return 0; + } + +@@ -521,8 +529,6 @@ static int fsl_sai_set_bclk(struct snd_s + if (sai->slave_mode[tx]) + return 0; + +- fsl_sai_check_ver(dai); +- + for (id = 0; id < FSL_SAI_MCLK_MAX; id++) { + clk_rate = clk_get_rate(sai->mclk_clk[id]); + if (!clk_rate) +@@ -1517,6 +1523,10 @@ static int fsl_sai_probe(struct platform + + platform_set_drvdata(pdev, sai); + ++ ret = fsl_sai_check_ver(&pdev->dev); ++ if (ret < 0) ++ dev_warn(&pdev->dev, "Error reading SAI version: %d\n", ret); ++ + pm_runtime_enable(&pdev->dev); + + regcache_cache_only(sai->regmap, true); |