fsl_micfil_check_version can help to parse the version info in VERID and PARAM registers. Since the two registers are added only on i.MX93 platform, a member flag called check_version is introduced to soc data structure which indicates need to check version.
Signed-off-by: Chancel Liu chancel.liu@nxp.com --- sound/soc/fsl/fsl_micfil.c | 76 +++++++++++++++++++++++++++++++++++++- sound/soc/fsl/fsl_micfil.h | 36 ++++++++++++++++++ 2 files changed, 110 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index b15febf19c02..46eda6e8c4b6 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -56,6 +56,8 @@ struct fsl_micfil { int vad_init_mode; int vad_enabled; int vad_detected; + struct fsl_micfil_verid verid; + struct fsl_micfil_param param; };
struct fsl_micfil_soc_data { @@ -64,6 +66,7 @@ struct fsl_micfil_soc_data { unsigned int dataline; bool imx; bool use_edma; + bool check_version; u64 formats; };
@@ -90,6 +93,7 @@ static struct fsl_micfil_soc_data fsl_micfil_imx93 = { .dataline = 0xf, .formats = SNDRV_PCM_FMTBIT_S32_LE, .use_edma = true, + .check_version = true, };
static const struct of_device_id fsl_micfil_dt_ids[] = { @@ -356,6 +360,49 @@ static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { SOC_SINGLE_BOOL_EXT("VAD Detected", 0, hwvad_detected, NULL), };
+static int fsl_micfil_check_version(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + unsigned int val; + int ret; + + if (!micfil->soc->check_version) + return 0; + + ret = regmap_read(micfil->regmap, REG_MICFIL_VERID, &val); + if (ret < 0) + return ret; + + dev_dbg(dev, "VERID: 0x%016X\n", val); + + micfil->verid.version = val & + (MICFIL_VERID_MAJOR_MASK | MICFIL_VERID_MINOR_MASK); + micfil->verid.version >>= MICFIL_VERID_MINOR_SHIFT; + micfil->verid.feature = val & MICFIL_VERID_FEATURE_MASK; + + ret = regmap_read(micfil->regmap, REG_MICFIL_PARAM, &val); + if (ret < 0) + return ret; + + dev_dbg(dev, "PARAM: 0x%016X\n", val); + + micfil->param.hwvad_num = (val & MICFIL_PARAM_NUM_HWVAD_MASK) >> + MICFIL_PARAM_NUM_HWVAD_SHIFT; + micfil->param.hwvad_zcd = val & MICFIL_PARAM_HWVAD_ZCD; + micfil->param.hwvad_energy_mode = val & MICFIL_PARAM_HWVAD_ENERGY_MODE; + micfil->param.hwvad = val & MICFIL_PARAM_HWVAD; + micfil->param.dc_out_bypass = val & MICFIL_PARAM_DC_OUT_BYPASS; + micfil->param.dc_in_bypass = val & MICFIL_PARAM_DC_IN_BYPASS; + micfil->param.low_power = val & MICFIL_PARAM_LOW_POWER; + micfil->param.fil_out_width = val & MICFIL_PARAM_FIL_OUT_WIDTH; + micfil->param.fifo_ptrwid = (val & MICFIL_PARAM_FIFO_PTRWID_MASK) >> + MICFIL_PARAM_FIFO_PTRWID_SHIFT; + micfil->param.npair = (val & MICFIL_PARAM_NPAIR_MASK) >> + MICFIL_PARAM_NPAIR_SHIFT; + + return 0; +} + /* The SRES is a self-negated bit which provides the CPU with the * capability to initialize the PDM Interface module through the * slave-bus interface. This bit always reads as zero, and this @@ -1037,6 +1084,9 @@ static irqreturn_t hwvad_err_isr(int irq, void *devid) return IRQ_HANDLED; }
+static int fsl_micfil_runtime_suspend(struct device *dev); +static int fsl_micfil_runtime_resume(struct device *dev); + static int fsl_micfil_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -1156,6 +1206,25 @@ static int fsl_micfil_probe(struct platform_device *pdev) platform_set_drvdata(pdev, micfil);
pm_runtime_enable(&pdev->dev); + if (!pm_runtime_enabled(&pdev->dev)) { + ret = fsl_micfil_runtime_resume(&pdev->dev); + if (ret) + goto err_pm_disable; + } + + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret < 0) + goto err_pm_get_sync; + + /* Get micfil version */ + ret = fsl_micfil_check_version(&pdev->dev); + if (ret < 0) + dev_warn(&pdev->dev, "Error reading MICFIL version: %d\n", ret); + + ret = pm_runtime_put_sync(&pdev->dev); + if (ret < 0 && ret != -ENOSYS) + goto err_pm_get_sync; + regcache_cache_only(micfil->regmap, true);
/* @@ -1180,6 +1249,9 @@ static int fsl_micfil_probe(struct platform_device *pdev)
return ret;
+err_pm_get_sync: + if (!pm_runtime_status_suspended(&pdev->dev)) + fsl_micfil_runtime_suspend(&pdev->dev); err_pm_disable: pm_runtime_disable(&pdev->dev);
@@ -1191,7 +1263,7 @@ static void fsl_micfil_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); }
-static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev) +static int fsl_micfil_runtime_suspend(struct device *dev) { struct fsl_micfil *micfil = dev_get_drvdata(dev);
@@ -1203,7 +1275,7 @@ static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev) return 0; }
-static int __maybe_unused fsl_micfil_runtime_resume(struct device *dev) +static int fsl_micfil_runtime_resume(struct device *dev) { struct fsl_micfil *micfil = dev_get_drvdata(dev); int ret; diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index b3c392ef5daf..231a52aff024 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -174,4 +174,40 @@ #define MICFIL_HWVAD_ENVELOPE_MODE 0 #define MICFIL_HWVAD_ENERGY_MODE 1
+/** + * struct fsl_micfil_verid - version id data + * @version: version number + * @feature: feature specification number + */ +struct fsl_micfil_verid { + u32 version; + u32 feature; +}; + +/** + * struct fsl_micfil_param - parameter data + * @hwvad_num: the number of HWVADs + * @hwvad_zcd: HWVAD zero-cross detector is active + * @hwvad_energy_mode: HWVAD energy mode is active + * @hwvad: HWVAD is active + * @dc_out_bypass: points out if the output DC remover is disabled + * @dc_in_bypass: points out if the input DC remover is disabled + * @low_power: low power decimation filter + * @fil_out_width: filter output width + * @fifo_ptrwid: FIFO pointer width + * @npair: number of microphone pairs + */ +struct fsl_micfil_param { + u32 hwvad_num; + bool hwvad_zcd; + bool hwvad_energy_mode; + bool hwvad; + bool dc_out_bypass; + bool dc_in_bypass; + bool low_power; + bool fil_out_width; + u32 fifo_ptrwid; + u32 npair; +}; + #endif /* _FSL_MICFIL_H */