[PATCH 00/23] ASoC: codecs: wcd family: cleanups

[PATCH 00/23] ASoC: codecs: wcd family: cleanups

[Krzysztof Kozlowski]

Hi,

Set of simple cleanups from similar issues in all Qualcomm WCD93xx
codecs.

The first patch "ASoC: codecs: wcd-mbhc: Constify passed MBHC reg
fields" is a requirement for few others, but except this they are
independent.

Best regards,
Krzysztof

---
Krzysztof Kozlowski (23):
      ASoC: codecs: wcd-mbhc: Constify passed MBHC reg fields
      ASoC: codecs: wcd9335: Drop unused state container fields
      ASoC: codecs: wcd9335: Constify static data
      ASoC: codecs: wcd9335: Handle nicer probe deferral and simplify with dev_err_probe()
      ASoC: codecs: wcd9335: Drop unneeded error message
      ASoC: codecs: wcd9335: Drop unused dmic rate handling
      ASoC: codecs: wcd934x: Drop unused interp path enum
      ASoC: codecs: wcd934x: Constify static data
      ASoC: codecs: wcd934x: Drop unused mic bias voltage fields
      ASoC: codecs: wcd934x: Handle nicer probe deferral and simplify with dev_err_probe()
      ASoC: codecs: wcd937x: Constify static data
      ASoC: codecs: wcd937x: Constify wcd937x_sdw_ch_info
      ASoC: codecs: wcd937x: Drop unused enums, defines and types
      ASoC: codecs: wcd937x: Drop unused state container fields
      ASoC: codecs: wcd937x: Drop unused chipid member
      ASoC: codecs: wcd938x: Constify static data
      ASoC: codecs: wcd938x: Constify wcd938x_sdw_ch_info
      ASoC: codecs: wcd938x: Drop unused RX/TX direction enum
      ASoC: codecs: wcd938x: Drop unused num_ports field
      ASoC: codecs: wcd939x: Constify static data
      ASoC: codecs: wcd939x: Constify wcd939x_sdw_ch_info
      ASoC: codecs: wcd939x: Drop unused RX/TX direction enum
      ASoC: codecs: wcd939x: Drop unused num_ports field

 sound/soc/codecs/wcd-mbhc-v2.c |  4 +-
 sound/soc/codecs/wcd-mbhc-v2.h |  4 +-
 sound/soc/codecs/wcd9335.c     | 98 ++++++++----------------------------------
 sound/soc/codecs/wcd934x.c     | 42 ++++++------------
 sound/soc/codecs/wcd937x-sdw.c |  4 +-
 sound/soc/codecs/wcd937x.c     | 25 +++++------
 sound/soc/codecs/wcd937x.h     | 31 +------------
 sound/soc/codecs/wcd938x-sdw.c |  4 +-
 sound/soc/codecs/wcd938x.c     |  6 +--
 sound/soc/codecs/wcd938x.h     |  7 +--
 sound/soc/codecs/wcd939x-sdw.c |  4 +-
 sound/soc/codecs/wcd939x.c     |  8 ++--
 sound/soc/codecs/wcd939x.h     |  8 +---
 13 files changed, 60 insertions(+), 185 deletions(-)
---
base-commit: f453294266a3f90f72b91c30b76ca67c5dbf6019
change-id: 20240612-asoc-wcd9xxx-wide-cleanups-a3aaf9c4d23b

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

[PATCH 01/23] ASoC: codecs: wcd-mbhc: Constify passed MBHC reg fields

[Krzysztof Kozlowski]

The wcd-mbhc-v2 helper code/module does not modify passed array of
registry fields, thus it can be made const for code safety.  It will
also allow individual drivers to allocate the array in rodata.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd-mbhc-v2.c | 4 ++--
 sound/soc/codecs/wcd-mbhc-v2.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c
index 0e6218ed0e5e..d589a212b768 100644
--- a/sound/soc/codecs/wcd-mbhc-v2.c
+++ b/sound/soc/codecs/wcd-mbhc-v2.c
@@ -50,7 +50,7 @@ struct wcd_mbhc {
 	struct wcd_mbhc_config *cfg;
 	const struct wcd_mbhc_cb *mbhc_cb;
 	const struct wcd_mbhc_intr *intr_ids;
-	struct wcd_mbhc_field *fields;
+	const struct wcd_mbhc_field *fields;
 	/* Delayed work to report long button press */
 	struct delayed_work mbhc_btn_dwork;
 	/* Work to handle plug report */
@@ -1505,7 +1505,7 @@ EXPORT_SYMBOL(wcd_dt_parse_mbhc_data);
 struct wcd_mbhc *wcd_mbhc_init(struct snd_soc_component *component,
 			       const struct wcd_mbhc_cb *mbhc_cb,
 			       const struct wcd_mbhc_intr *intr_ids,
-			       struct wcd_mbhc_field *fields,
+			       const struct wcd_mbhc_field *fields,
 			       bool impedance_det_en)
 {
 	struct device *dev = component->dev;
diff --git a/sound/soc/codecs/wcd-mbhc-v2.h b/sound/soc/codecs/wcd-mbhc-v2.h
index df68e99c81a3..b977e8f87d7c 100644
--- a/sound/soc/codecs/wcd-mbhc-v2.h
+++ b/sound/soc/codecs/wcd-mbhc-v2.h
@@ -279,7 +279,7 @@ int wcd_mbhc_typec_report_unplug(struct wcd_mbhc *mbhc);
 struct wcd_mbhc *wcd_mbhc_init(struct snd_soc_component *component,
 		      const struct wcd_mbhc_cb *mbhc_cb,
 		      const struct wcd_mbhc_intr *mbhc_cdc_intr_ids,
-		      struct wcd_mbhc_field *fields,
+		      const struct wcd_mbhc_field *fields,
 		      bool impedance_det_en);
 int wcd_mbhc_get_impedance(struct wcd_mbhc *mbhc, uint32_t *zl,
 			   uint32_t *zr);
@@ -300,7 +300,7 @@ static inline void wcd_mbhc_stop(struct wcd_mbhc *mbhc)
 static inline struct wcd_mbhc *wcd_mbhc_init(struct snd_soc_component *component,
 		      const struct wcd_mbhc_cb *mbhc_cb,
 		      const struct wcd_mbhc_intr *mbhc_cdc_intr_ids,
-		      struct wcd_mbhc_field *fields,
+		      const struct wcd_mbhc_field *fields,
 		      bool impedance_det_en)
 {
 	return ERR_PTR(-ENOTSUPP);

-- 
2.43.0

[PATCH 02/23] ASoC: codecs: wcd9335: Drop unused state container fields

[Krzysztof Kozlowski]

The driver does not use few 'struct wcd9335_codec' members, so just drop
them for smaller code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd9335.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index 42a99978fe5a..60e7704e48d2 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -297,7 +297,6 @@ struct wcd9335_codec {
 	struct clk *mclk;
 	struct clk *native_clk;
 	u32 mclk_rate;
-	u8 version;
 
 	struct slim_device *slim;
 	struct slim_device *slim_ifc_dev;
@@ -347,8 +346,6 @@ struct wcd9335_codec {
 	int dmic_4_5_clk_cnt;
 	int dmic_sample_rate;
 	int mad_dmic_sample_rate;
-
-	int native_clk_users;
 };
 
 struct wcd9335_irq {
@@ -5109,7 +5106,6 @@ static int wcd9335_bring_up(struct wcd9335_codec *wcd)
 
 	if (byte0 == 0x1) {
 		dev_info(wcd->dev, "WCD9335 CODEC version is v2.0\n");
-		wcd->version = WCD9335_VERSION_2_0;
 		regmap_write(rm, WCD9335_CODEC_RPM_RST_CTL, 0x01);
 		regmap_write(rm, WCD9335_SIDO_SIDO_TEST_2, 0x00);
 		regmap_write(rm, WCD9335_SIDO_SIDO_CCL_8, 0x6F);

-- 
2.43.0

[PATCH 03/23] ASoC: codecs: wcd9335: Constify static data

[Krzysztof Kozlowski]

Driver does not modify few static data (arrays with sample rates,
interrupt description, regmap config), so make them const for code
safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd9335.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index 60e7704e48d2..c5ac2d46e556 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -394,13 +394,13 @@ struct interp_sample_rate {
 	int rate_val;
 };
 
-static struct interp_sample_rate int_mix_rate_val[] = {
+static const struct interp_sample_rate int_mix_rate_val[] = {
 	{48000, 0x4},	/* 48K */
 	{96000, 0x5},	/* 96K */
 	{192000, 0x6},	/* 192K */
 };
 
-static struct interp_sample_rate int_prim_rate_val[] = {
+static const struct interp_sample_rate int_prim_rate_val[] = {
 	{8000, 0x0},	/* 8K */
 	{16000, 0x1},	/* 16K */
 	{24000, -EINVAL},/* 24K */
@@ -4023,7 +4023,7 @@ static irqreturn_t wcd9335_slimbus_irq(int irq, void *data)
 	return ret;
 }
 
-static struct wcd9335_irq wcd9335_irqs[] = {
+static const struct wcd9335_irq wcd9335_irqs[] = {
 	{
 		.irq = WCD9335_IRQ_SLIMBUS,
 		.handler = wcd9335_slimbus_irq,
@@ -4960,7 +4960,7 @@ static bool wcd9335_is_volatile_register(struct device *dev, unsigned int reg)
 	}
 }
 
-static struct regmap_config wcd9335_regmap_config = {
+static const struct regmap_config wcd9335_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.cache_type = REGCACHE_MAPLE,
@@ -4984,7 +4984,7 @@ static const struct regmap_range_cfg wcd9335_ifc_ranges[] = {
 	},
 };
 
-static struct regmap_config wcd9335_ifc_regmap_config = {
+static const struct regmap_config wcd9335_ifc_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.can_multi_write = true,

-- 
2.43.0

[PATCH 04/23] ASoC: codecs: wcd9335: Handle nicer probe deferral and simplify with dev_err_probe()

[Krzysztof Kozlowski]

wcd9335_parse_dt() function is called only from probe(), so printing
errors on resource acquisition is discouraged, because it can pollute
dmesg.  Use dev_err_probe() to fix this and also make the code a bit
simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd9335.c | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index c5ac2d46e556..334c5241617f 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -5031,22 +5031,16 @@ static int wcd9335_parse_dt(struct wcd9335_codec *wcd)
 	int ret;
 
 	wcd->reset_gpio = of_get_named_gpio(np,	"reset-gpios", 0);
-	if (wcd->reset_gpio < 0) {
-		dev_err(dev, "Reset GPIO missing from DT\n");
-		return wcd->reset_gpio;
-	}
+	if (wcd->reset_gpio < 0)
+		return dev_err_probe(dev, wcd->reset_gpio, "Reset GPIO missing from DT\n");
 
 	wcd->mclk = devm_clk_get(dev, "mclk");
-	if (IS_ERR(wcd->mclk)) {
-		dev_err(dev, "mclk not found\n");
-		return PTR_ERR(wcd->mclk);
-	}
+	if (IS_ERR(wcd->mclk))
+		return dev_err_probe(dev, PTR_ERR(wcd->mclk), "mclk not found\n");
 
 	wcd->native_clk = devm_clk_get(dev, "slimbus");
-	if (IS_ERR(wcd->native_clk)) {
-		dev_err(dev, "slimbus clock not found\n");
-		return PTR_ERR(wcd->native_clk);
-	}
+	if (IS_ERR(wcd->native_clk))
+		return dev_err_probe(dev, PTR_ERR(wcd->native_clk), "slimbus clock not found\n");
 
 	wcd->supplies[0].supply = "vdd-buck";
 	wcd->supplies[1].supply = "vdd-buck-sido";
@@ -5055,10 +5049,8 @@ static int wcd9335_parse_dt(struct wcd9335_codec *wcd)
 	wcd->supplies[4].supply = "vdd-io";
 
 	ret = regulator_bulk_get(dev, WCD9335_MAX_SUPPLY, wcd->supplies);
-	if (ret) {
-		dev_err(dev, "Failed to get supplies: err = %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get supplies\n");
 
 	return 0;
 }
@@ -5157,10 +5149,8 @@ static int wcd9335_slim_probe(struct slim_device *slim)
 
 	wcd->dev = dev;
 	ret = wcd9335_parse_dt(wcd);
-	if (ret) {
-		dev_err(dev, "Error parsing DT: %d\n", ret);
+	if (ret)
 		return ret;
-	}
 
 	ret = wcd9335_power_on_reset(wcd);
 	if (ret)

-- 
2.43.0

[PATCH 05/23] ASoC: codecs: wcd9335: Drop unneeded error message

[Krzysztof Kozlowski]

Error-level should not be used as debugging.  The code (function
wcd9335_get_dmic_clk_val()) will always be called with same parameters,
so this is not really useful debug anyway, so drop it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd9335.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index 334c5241617f..6a1376b3b98c 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -2849,10 +2849,6 @@ static u8 wcd9335_get_dmic_clk_val(struct snd_soc_component *component,
 	u32 div_factor;
 	u8 dmic_ctl_val;
 
-	dev_err(component->dev,
-		"%s: mclk_rate = %d, dmic_sample_rate = %d\n",
-		__func__, mclk_rate, dmic_clk_rate);
-
 	/* Default value to return in case of error */
 	if (mclk_rate == WCD9335_MCLK_CLK_9P6MHZ)
 		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_2;

-- 
2.43.0

[PATCH 06/23] ASoC: codecs: wcd9335: Drop unused dmic rate handling

[Krzysztof Kozlowski]

Driver was prepared to adjust DMIC microphone parameters according to
DMIC clock rate which is read from platform data or Devicetree.  The
latter part never happened, so the code is always called with
dmic_clk_rate=0, prints error and uses default/fallback values.  All
this part can be simplified by dropping dead parts of code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd9335.c | 52 +++-------------------------------------------
 1 file changed, 3 insertions(+), 49 deletions(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index 6a1376b3b98c..f5fe2583b807 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -344,8 +344,6 @@ struct wcd9335_codec {
 	int dmic_0_1_clk_cnt;
 	int dmic_2_3_clk_cnt;
 	int dmic_4_5_clk_cnt;
-	int dmic_sample_rate;
-	int mad_dmic_sample_rate;
 };
 
 struct wcd9335_irq {
@@ -2844,52 +2842,15 @@ static int wcd9335_codec_enable_dec(struct snd_soc_dapm_widget *w,
 }
 
 static u8 wcd9335_get_dmic_clk_val(struct snd_soc_component *component,
-				 u32 mclk_rate, u32 dmic_clk_rate)
+				 u32 mclk_rate)
 {
-	u32 div_factor;
 	u8 dmic_ctl_val;
 
-	/* Default value to return in case of error */
 	if (mclk_rate == WCD9335_MCLK_CLK_9P6MHZ)
 		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_2;
 	else
 		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_3;
 
-	if (dmic_clk_rate == 0) {
-		dev_err(component->dev,
-			"%s: dmic_sample_rate cannot be 0\n",
-			__func__);
-		goto done;
-	}
-
-	div_factor = mclk_rate / dmic_clk_rate;
-	switch (div_factor) {
-	case 2:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_2;
-		break;
-	case 3:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_3;
-		break;
-	case 4:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_4;
-		break;
-	case 6:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_6;
-		break;
-	case 8:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_8;
-		break;
-	case 16:
-		dmic_ctl_val = WCD9335_DMIC_CLK_DIV_16;
-		break;
-	default:
-		dev_err(component->dev,
-			"%s: Invalid div_factor %u, clk_rate(%u), dmic_rate(%u)\n",
-			__func__, div_factor, mclk_rate, dmic_clk_rate);
-		break;
-	}
-
-done:
 	return dmic_ctl_val;
 }
 
@@ -2943,11 +2904,7 @@ static int wcd9335_codec_enable_dmic(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		dmic_rate_val =
-			wcd9335_get_dmic_clk_val(comp,
-					wcd->mclk_rate,
-					wcd->dmic_sample_rate);
-
+		dmic_rate_val = wcd9335_get_dmic_clk_val(comp, wcd->mclk_rate);
 		(*dmic_clk_cnt)++;
 		if (*dmic_clk_cnt == 1) {
 			snd_soc_component_update_bits(comp, dmic_clk_reg,
@@ -2959,10 +2916,7 @@ static int wcd9335_codec_enable_dmic(struct snd_soc_dapm_widget *w,
 
 		break;
 	case SND_SOC_DAPM_POST_PMD:
-		dmic_rate_val =
-			wcd9335_get_dmic_clk_val(comp,
-					wcd->mclk_rate,
-					wcd->mad_dmic_sample_rate);
+		dmic_rate_val = wcd9335_get_dmic_clk_val(comp, wcd->mclk_rate);
 		(*dmic_clk_cnt)--;
 		if (*dmic_clk_cnt  == 0) {
 			snd_soc_component_update_bits(comp, dmic_clk_reg,

-- 
2.43.0

[PATCH 07/23] ASoC: codecs: wcd934x: Drop unused interp path enum

[Krzysztof Kozlowski]

The enum with inter path is not used.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd934x.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index fcad2c9fba55..cdb68f34e55a 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -475,11 +475,6 @@ enum {
 	INTn_2_INP_SEL_PROXIMITY,
 };
 
-enum {
-	INTERP_MAIN_PATH,
-	INTERP_MIX_PATH,
-};
-
 struct interp_sample_rate {
 	int sample_rate;
 	int rate_val;

-- 
2.43.0

[PATCH 08/23] ASoC: codecs: wcd934x: Constify static data

[Krzysztof Kozlowski]

Driver does not modify few static data (arrays with sample rates, MBHC
reg fields, regmap config), so make them const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd934x.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index cdb68f34e55a..7885aa423886 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -480,7 +480,7 @@ struct interp_sample_rate {
 	int rate_val;
 };
 
-static struct interp_sample_rate sr_val_tbl[] = {
+static const struct interp_sample_rate sr_val_tbl[] = {
 	{8000, 0x0},
 	{16000, 0x1},
 	{32000, 0x3},
@@ -522,7 +522,7 @@ static const struct regmap_range_cfg wcd934x_ifc_ranges[] = {
 	},
 };
 
-static struct regmap_config wcd934x_ifc_regmap_config = {
+static const struct regmap_config wcd934x_ifc_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.max_register = 0xffff,
@@ -1212,7 +1212,7 @@ static const struct soc_enum cdc_if_tx13_mux_enum =
 	SOC_ENUM_SINGLE(WCD934X_DATA_HUB_SB_TX13_INP_CFG, 0,
 			ARRAY_SIZE(cdc_if_tx13_mux_text), cdc_if_tx13_mux_text);
 
-static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+static const struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
 	WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD934X_ANA_MBHC_MECH, 0x80),
 	WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD934X_ANA_MBHC_MECH, 0x40),
 	WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD934X_ANA_MBHC_MECH, 0x20),

-- 
2.43.0

[PATCH 09/23] ASoC: codecs: wcd934x: Drop unused mic bias voltage fields

[Krzysztof Kozlowski]

Driver stores the voltage of mic bias in fields in state container
structure, but actually never reads them - except for the mic2 bias
(micb2_mv field).  Drop the fields from the structure so the code will
be a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd934x.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 7885aa423886..2a5fb4370ba3 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -566,10 +566,7 @@ struct wcd934x_codec {
 	struct mutex micb_lock;
 	u32 micb_ref[WCD934X_MAX_MICBIAS];
 	u32 pullup_ref[WCD934X_MAX_MICBIAS];
-	u32 micb1_mv;
 	u32 micb2_mv;
-	u32 micb3_mv;
-	u32 micb4_mv;
 };
 
 #define to_wcd934x_codec(_hw) container_of(_hw, struct wcd934x_codec, hw)
@@ -2203,7 +2200,8 @@ static int wcd934x_get_micbias_val(struct device *dev, const char *micbias,
 		mv = WCD934X_DEF_MICBIAS_MV;
 	}
 
-	*micb_mv = mv;
+	if (micb_mv)
+		*micb_mv = mv;
 
 	return (mv - 1000) / 50;
 }
@@ -2215,17 +2213,14 @@ static int wcd934x_init_dmic(struct snd_soc_component *comp)
 	u32 def_dmic_rate, dmic_clk_drv;
 
 	vout_ctl_1 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias1-microvolt",
-					     &wcd->micb1_mv);
+					     "qcom,micbias1-microvolt", NULL);
 	vout_ctl_2 = wcd934x_get_micbias_val(comp->dev,
 					     "qcom,micbias2-microvolt",
 					     &wcd->micb2_mv);
 	vout_ctl_3 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias3-microvolt",
-					     &wcd->micb3_mv);
+					     "qcom,micbias3-microvolt", NULL);
 	vout_ctl_4 = wcd934x_get_micbias_val(comp->dev,
-					     "qcom,micbias4-microvolt",
-					     &wcd->micb4_mv);
+					     "qcom,micbias4-microvolt", NULL);
 
 	snd_soc_component_update_bits(comp, WCD934X_ANA_MICB1,
 				      WCD934X_MICB_VAL_MASK, vout_ctl_1);

-- 
2.43.0

[PATCH 10/23] ASoC: codecs: wcd934x: Handle nicer probe deferral and simplify with dev_err_probe()

[Krzysztof Kozlowski]

wcd934x_codec_parse_data() function is called only from probe(), so
printing errors on resource acquisition is discouraged, because it can
pollute dmesg in case of probe deferral.  The actual deferral is here
unlikely, but still the code is a bit simpler with dev_err_probe().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd934x.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 2a5fb4370ba3..d1bbc963856b 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -5856,17 +5856,13 @@ static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd)
 	struct device_node *ifc_dev_np;
 
 	ifc_dev_np = of_parse_phandle(dev->of_node, "slim-ifc-dev", 0);
-	if (!ifc_dev_np) {
-		dev_err(dev, "No Interface device found\n");
-		return -EINVAL;
-	}
+	if (!ifc_dev_np)
+		return dev_err_probe(dev, -EINVAL, "No Interface device found\n");
 
 	wcd->sidev = of_slim_get_device(wcd->sdev->ctrl, ifc_dev_np);
 	of_node_put(ifc_dev_np);
-	if (!wcd->sidev) {
-		dev_err(dev, "Unable to get SLIM Interface device\n");
-		return -EINVAL;
-	}
+	if (!wcd->sidev)
+		return dev_err_probe(dev, -EINVAL, "Unable to get SLIM Interface device\n");
 
 	slim_get_logical_addr(wcd->sidev);
 	wcd->if_regmap = regmap_init_slimbus(wcd->sidev,
@@ -5912,10 +5908,8 @@ static int wcd934x_codec_probe(struct platform_device *pdev)
 	mutex_init(&wcd->micb_lock);
 
 	ret = wcd934x_codec_parse_data(wcd);
-	if (ret) {
-		dev_err(wcd->dev, "Failed to get SLIM IRQ\n");
+	if (ret)
 		return ret;
-	}
 
 	/* set default rate 9P6MHz */
 	regmap_update_bits(wcd->regmap, WCD934X_CODEC_RPM_CLK_MCLK_CFG,

-- 
2.43.0

[PATCH 11/23] ASoC: codecs: wcd937x: Constify static data

[Krzysztof Kozlowski]

Driver does not modify few static data (MBHC reg fields, IRQ chip), so
make them const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd937x.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index ef649ed77fb2..4cf17d62a0bc 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -133,7 +133,7 @@ struct wcd937x_mbhc_zdet_param {
 	u16 btn7;
 };
 
-static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+static const struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
 	WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD937X_ANA_MBHC_MECH, 0x80),
 	WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD937X_ANA_MBHC_MECH, 0x40),
 	WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD937X_ANA_MBHC_MECH, 0x20),
@@ -227,7 +227,7 @@ static const u32 wcd937x_config_regs[] = {
 	WCD937X_DIGITAL_INTR_LEVEL_0,
 };
 
-static struct regmap_irq_chip wcd937x_regmap_irq_chip = {
+static const struct regmap_irq_chip wcd937x_regmap_irq_chip = {
 	.name = "wcd937x",
 	.irqs = wcd937x_irqs,
 	.num_irqs = ARRAY_SIZE(wcd937x_irqs),
@@ -2503,7 +2503,7 @@ static irqreturn_t wcd937x_wd_handle_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static struct irq_chip wcd_irq_chip = {
+static const struct irq_chip wcd_irq_chip = {
 	.name = "WCD937x",
 };
 

-- 
2.43.0

[PATCH 12/23] ASoC: codecs: wcd937x: Constify wcd937x_sdw_ch_info

[Krzysztof Kozlowski]

Driver does not modify static wcd937x_sdw_ch_info array, so it can be
made const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd937x-sdw.c | 4 ++--
 sound/soc/codecs/wcd937x.c     | 2 +-
 sound/soc/codecs/wcd937x.h     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wcd937x-sdw.c b/sound/soc/codecs/wcd937x-sdw.c
index a45025bf96c6..a24d6c620dba 100644
--- a/sound/soc/codecs/wcd937x-sdw.c
+++ b/sound/soc/codecs/wcd937x-sdw.c
@@ -19,7 +19,7 @@
 #include <sound/soc.h>
 #include "wcd937x.h"
 
-static struct wcd937x_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
+static const struct wcd937x_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_HPH_L, WCD937X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_HPH_R, WCD937X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD937X_CLSH, WCD937X_CLSH_PORT, BIT(0)),
@@ -30,7 +30,7 @@ static struct wcd937x_sdw_ch_info wcd937x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_DSD_R, WCD937X_DSD_PORT, BIT(1)),
 };
 
-static struct wcd937x_sdw_ch_info wcd937x_sdw_tx_ch_info[] = {
+static const struct wcd937x_sdw_ch_info wcd937x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD937X_ADC1, WCD937X_ADC_1_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_ADC2, WCD937X_ADC_2_3_PORT, BIT(0)),
 	WCD_SDW_CH(WCD937X_ADC3, WCD937X_ADC_2_3_PORT, BIT(0)),
diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 4cf17d62a0bc..8b000ba9a469 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -1244,7 +1244,7 @@ static int wcd937x_codec_enable_micbias_pullup(struct snd_soc_dapm_widget *w,
 static int wcd937x_connect_port(struct wcd937x_sdw_priv *wcd, u8 port_idx, u8 ch_id, bool enable)
 {
 	struct sdw_port_config *port_config = &wcd->port_config[port_idx - 1];
-	struct wcd937x_sdw_ch_info *ch_info = &wcd->ch_info[ch_id];
+	const struct wcd937x_sdw_ch_info *ch_info = &wcd->ch_info[ch_id];
 	u8 port_num = ch_info->port_num;
 	u8 ch_mask = ch_info->ch_mask;
 
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index e6e1ad5926d5..6f857ce7d8b7 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -522,7 +522,7 @@ struct wcd937x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD937X_MAX_SWR_PORTS];
-	struct wcd937x_sdw_ch_info *ch_info;
+	const struct wcd937x_sdw_ch_info *ch_info;
 	bool port_enable[WCD937X_MAX_SWR_CH_IDS];
 	int active_ports;
 	int num_ports;

-- 
2.43.0

[PATCH 13/23] ASoC: codecs: wcd937x: Drop unused enums, defines and types

[Krzysztof Kozlowski]

Few declarations (defines, struct codec_port_info, enums) are not used
and can be safely dropped.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd937x.h | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 6f857ce7d8b7..834a3e7713a3 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -488,23 +488,6 @@
 #define WCD937X_MAX_SWR_PORTS			5
 #define WCD937X_MAX_SWR_CH_IDS			15
 
-/* Convert from vout ctl to micbias voltage in mV */
-#define WCD_VOUT_CTL_TO_MICB(v)	(1000 + (v) * 50)
-#define MAX_PORT 8
-#define MAX_CH_PER_PORT 8
-#define MAX_TX_PWR_CH 2
-#define SWR_NUM_PORTS 4
-
-#define WCD937X_MAX_SLAVE_PORT_TYPES 10
-
-struct codec_port_info {
-	u32 slave_port_type;
-	u32 master_port_type;
-	u32 ch_mask;
-	u32 num_ch;
-	u32 ch_rate;
-};
-
 struct wcd937x_sdw_ch_info {
 	int port_num;
 	unsigned int ch_mask;
@@ -570,12 +553,6 @@ int wcd937x_sdw_hw_params(struct wcd937x_sdw_priv *wcd,
 }
 #endif
 
-enum {
-	WCD_RX1,
-	WCD_RX2,
-	WCD_RX3
-};
-
 enum {
 	/* INTR_CTRL_INT_MASK_0 */
 	WCD937X_IRQ_MBHC_BUTTON_PRESS_DET = 0,
@@ -645,9 +622,4 @@ enum wcd937x_rx_sdw_channels {
 	WCD937X_DSD_L,
 };
 
-enum {
-	WCD937X_SDW_DIR_RX,
-	WCD937X_SDW_DIR_TX,
-};
-
 #endif

-- 
2.43.0

[PATCH 14/23] ASoC: codecs: wcd937x: Drop unused state container fields

[Krzysztof Kozlowski]

The driver does not use few 'struct wcd937x_priv' and 'struct
wcd937x_sdw_priv' members, so just drop them for smaller code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd937x.c | 4 ----
 sound/soc/codecs/wcd937x.h | 1 -
 2 files changed, 5 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 8b000ba9a469..96e2989f9722 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -103,7 +103,6 @@ struct wcd937x_priv {
 	u32 micb1_mv;
 	u32 micb2_mv;
 	u32 micb3_mv;
-	u32 micb4_mv; /* 9375 only */
 	int hphr_pdm_wd_int;
 	int hphl_pdm_wd_int;
 	int aux_pdm_wd_int;
@@ -113,9 +112,6 @@ struct wcd937x_priv {
 	struct gpio_desc *us_euro_gpio;
 	struct gpio_desc *reset_gpio;
 
-	int dmic_0_1_clk_cnt;
-	int dmic_2_3_clk_cnt;
-	int dmic_4_5_clk_cnt;
 	atomic_t rx_clk_cnt;
 	atomic_t ana_clk_count;
 };
diff --git a/sound/soc/codecs/wcd937x.h b/sound/soc/codecs/wcd937x.h
index 834a3e7713a3..f267c66ca959 100644
--- a/sound/soc/codecs/wcd937x.h
+++ b/sound/soc/codecs/wcd937x.h
@@ -508,7 +508,6 @@ struct wcd937x_sdw_priv {
 	const struct wcd937x_sdw_ch_info *ch_info;
 	bool port_enable[WCD937X_MAX_SWR_CH_IDS];
 	int active_ports;
-	int num_ports;
 	bool is_tx;
 	struct wcd937x_priv *wcd937x;
 	struct irq_domain *slave_irq;

-- 
2.43.0

[PATCH 15/23] ASoC: codecs: wcd937x: Drop unused chipid member

[Krzysztof Kozlowski]

The driver stores the read chipid in 'struct wcd937x_priv' but never
needs it after.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd937x.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c
index 96e2989f9722..4beb70bc4d8c 100644
--- a/sound/soc/codecs/wcd937x.c
+++ b/sound/soc/codecs/wcd937x.c
@@ -99,7 +99,6 @@ struct wcd937x_priv {
 	s32 pullup_ref[WCD937X_MAX_MICBIAS];
 	u32 hph_mode;
 	int ear_rx_path;
-	u32 chipid;
 	u32 micb1_mv;
 	u32 micb2_mv;
 	u32 micb3_mv;
@@ -2539,6 +2538,7 @@ static int wcd937x_soc_codec_probe(struct snd_soc_component *component)
 	struct device *dev = component->dev;
 	unsigned long time_left;
 	int i, ret;
+	u32 chipid;
 
 	time_left = wait_for_completion_timeout(&tx_sdw_dev->initialization_complete,
 						msecs_to_jiffies(5000));
@@ -2552,11 +2552,10 @@ static int wcd937x_soc_codec_probe(struct snd_soc_component *component)
 	if (ret < 0)
 		return ret;
 
-	wcd937x->chipid = (snd_soc_component_read(component,
-				WCD937X_DIGITAL_EFUSE_REG_0) & 0x1e) >> 1;
-	if (wcd937x->chipid != CHIPID_WCD9370 &&
-	    wcd937x->chipid != CHIPID_WCD9375) {
-		dev_err(dev, "Got unknown chip id: 0x%x\n", wcd937x->chipid);
+	chipid = (snd_soc_component_read(component,
+					 WCD937X_DIGITAL_EFUSE_REG_0) & 0x1e) >> 1;
+	if (chipid != CHIPID_WCD9370 && chipid != CHIPID_WCD9375) {
+		dev_err(dev, "Got unknown chip id: 0x%x\n", chipid);
 		pm_runtime_put(dev);
 		return -EINVAL;
 	}
@@ -2605,7 +2604,7 @@ static int wcd937x_soc_codec_probe(struct snd_soc_component *component)
 	disable_irq_nosync(wcd937x->hphl_pdm_wd_int);
 	disable_irq_nosync(wcd937x->aux_pdm_wd_int);
 
-	if (wcd937x->chipid == CHIPID_WCD9375) {
+	if (chipid == CHIPID_WCD9375) {
 		ret = snd_soc_dapm_new_controls(dapm, wcd9375_dapm_widgets,
 						ARRAY_SIZE(wcd9375_dapm_widgets));
 		if (ret < 0) {

-- 
2.43.0

[PATCH 16/23] ASoC: codecs: wcd938x: Constify static data

[Krzysztof Kozlowski]

Driver does not modify few static data (MBHC reg fields, IRQ chip), so
make them const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd938x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index 73387152ce02..124c18712422 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -221,7 +221,7 @@ struct wcd938x_mbhc_zdet_param {
 	u16 btn7;
 };
 
-static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+static const struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
 	WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD938X_ANA_MBHC_MECH, 0x80),
 	WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD938X_ANA_MBHC_MECH, 0x40),
 	WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD938X_ANA_MBHC_MECH, 0x20),
@@ -3027,7 +3027,7 @@ static irqreturn_t wcd938x_wd_handle_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static struct irq_chip wcd_irq_chip = {
+static const struct irq_chip wcd_irq_chip = {
 	.name = "WCD938x",
 };
 

-- 
2.43.0

[PATCH 17/23] ASoC: codecs: wcd938x: Constify wcd938x_sdw_ch_info

[Krzysztof Kozlowski]

Driver does not modify static wcd938x_sdw_ch_info array, so it can be
made const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd938x-sdw.c | 4 ++--
 sound/soc/codecs/wcd938x.c     | 2 +-
 sound/soc/codecs/wcd938x.h     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wcd938x-sdw.c b/sound/soc/codecs/wcd938x-sdw.c
index a1f04010da95..c995bcc59ead 100644
--- a/sound/soc/codecs/wcd938x-sdw.c
+++ b/sound/soc/codecs/wcd938x-sdw.c
@@ -21,7 +21,7 @@
 
 #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
 
-static struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
+static const struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_HPH_L, WCD938X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD938X_HPH_R, WCD938X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD938X_CLSH, WCD938X_CLSH_PORT, BIT(0)),
@@ -32,7 +32,7 @@ static struct wcd938x_sdw_ch_info wcd938x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_DSD_R, WCD938X_DSD_PORT, BIT(1)),
 };
 
-static struct wcd938x_sdw_ch_info wcd938x_sdw_tx_ch_info[] = {
+static const struct wcd938x_sdw_ch_info wcd938x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD938X_ADC1, WCD938X_ADC_1_2_PORT, BIT(0)),
 	WCD_SDW_CH(WCD938X_ADC2, WCD938X_ADC_1_2_PORT, BIT(1)),
 	WCD_SDW_CH(WCD938X_ADC3, WCD938X_ADC_3_4_PORT, BIT(0)),
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index 124c18712422..12b32d5dc580 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -418,7 +418,7 @@ static int wcd938x_io_init(struct wcd938x_priv *wcd938x)
 
 }
 
-static int wcd938x_sdw_connect_port(struct wcd938x_sdw_ch_info *ch_info,
+static int wcd938x_sdw_connect_port(const struct wcd938x_sdw_ch_info *ch_info,
 				    struct sdw_port_config *port_config,
 				    u8 enable)
 {
diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index 0d332cb555ac..09e39a19fbe4 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -653,7 +653,7 @@ struct wcd938x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD938X_MAX_SWR_PORTS];
-	struct wcd938x_sdw_ch_info *ch_info;
+	const struct wcd938x_sdw_ch_info *ch_info;
 	bool port_enable[WCD938X_MAX_SWR_CH_IDS];
 	int active_ports;
 	int num_ports;

-- 
2.43.0

[PATCH 18/23] ASoC: codecs: wcd938x: Drop unused RX/TX direction enum

[Krzysztof Kozlowski]

The enum with RX/TX soundwire direction is not used.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd938x.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index 09e39a19fbe4..45b7de242209 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -642,10 +642,6 @@ enum wcd938x_rx_sdw_channels {
 	WCD938X_DSD_R,
 	WCD938X_DSD_L,
 };
-enum {
-	WCD938X_SDW_DIR_RX,
-	WCD938X_SDW_DIR_TX,
-};
 
 struct wcd938x_priv;
 struct wcd938x_sdw_priv {

-- 
2.43.0

[PATCH 19/23] ASoC: codecs: wcd938x: Drop unused num_ports field

[Krzysztof Kozlowski]

The driver does not use few 'num_ports' in 'struct wcd938x_sdw_priv'.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd938x.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/wcd938x.h b/sound/soc/codecs/wcd938x.h
index 45b7de242209..b2ad98026ae2 100644
--- a/sound/soc/codecs/wcd938x.h
+++ b/sound/soc/codecs/wcd938x.h
@@ -652,7 +652,6 @@ struct wcd938x_sdw_priv {
 	const struct wcd938x_sdw_ch_info *ch_info;
 	bool port_enable[WCD938X_MAX_SWR_CH_IDS];
 	int active_ports;
-	int num_ports;
 	bool is_tx;
 	struct wcd938x_priv *wcd938x;
 	struct irq_domain *slave_irq;

-- 
2.43.0

[PATCH 20/23] ASoC: codecs: wcd939x: Constify static data

[Krzysztof Kozlowski]

Driver does not modify few static data (MBHC reg fields, IRQ chip), so
make them const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd939x.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 72d8a6a35052..1f94f49f9829 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -220,7 +220,7 @@ static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(ear_pa_gain, 600, -1800);
 static const DECLARE_TLV_DB_SCALE(line_gain, 0, 7, 1);
 static const DECLARE_TLV_DB_SCALE(analog_gain, 0, 25, 1);
 
-static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+static const struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
 	WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD939X_ANA_MBHC_MECH, 0x80),
 	WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD939X_ANA_MBHC_MECH, 0x40),
 	WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD939X_ANA_MBHC_MECH, 0x20),
@@ -291,7 +291,7 @@ static const struct regmap_irq wcd939x_irqs[WCD939X_NUM_IRQS] = {
 	REGMAP_IRQ_REG(WCD939X_IRQ_HPHR_SURGE_DET_INT, 2, 0x08),
 };
 
-static struct regmap_irq_chip wcd939x_regmap_irq_chip = {
+static const struct regmap_irq_chip wcd939x_regmap_irq_chip = {
 	.name = "wcd939x",
 	.irqs = wcd939x_irqs,
 	.num_irqs = ARRAY_SIZE(wcd939x_irqs),
@@ -2957,7 +2957,7 @@ static irqreturn_t wcd939x_wd_handle_irq(int irq, void *data)
  *     \- regmap_irq_thread()
  *         \- handle_nested_irq(i)
  */
-static struct irq_chip wcd_irq_chip = {
+static const struct irq_chip wcd_irq_chip = {
 	.name = "WCD939x",
 };
 

-- 
2.43.0

Re: [PATCH 20/23] ASoC: codecs: wcd939x: Constify static data

[neil.armstrong]

On 12/06/2024 18:15, Krzysztof Kozlowski wrote:
> Driver does not modify few static data (MBHC reg fields, IRQ chip), so
> make them const for code safety.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>   sound/soc/codecs/wcd939x.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
> index 72d8a6a35052..1f94f49f9829 100644
> --- a/sound/soc/codecs/wcd939x.c
> +++ b/sound/soc/codecs/wcd939x.c
> @@ -220,7 +220,7 @@ static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(ear_pa_gain, 600, -1800);
>   static const DECLARE_TLV_DB_SCALE(line_gain, 0, 7, 1);
>   static const DECLARE_TLV_DB_SCALE(analog_gain, 0, 25, 1);
>   
> -static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
> +static const struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
>   	WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD939X_ANA_MBHC_MECH, 0x80),
>   	WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD939X_ANA_MBHC_MECH, 0x40),
>   	WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD939X_ANA_MBHC_MECH, 0x20),
> @@ -291,7 +291,7 @@ static const struct regmap_irq wcd939x_irqs[WCD939X_NUM_IRQS] = {
>   	REGMAP_IRQ_REG(WCD939X_IRQ_HPHR_SURGE_DET_INT, 2, 0x08),
>   };
>   
> -static struct regmap_irq_chip wcd939x_regmap_irq_chip = {
> +static const struct regmap_irq_chip wcd939x_regmap_irq_chip = {
>   	.name = "wcd939x",
>   	.irqs = wcd939x_irqs,
>   	.num_irqs = ARRAY_SIZE(wcd939x_irqs),
> @@ -2957,7 +2957,7 @@ static irqreturn_t wcd939x_wd_handle_irq(int irq, void *data)
>    *     \- regmap_irq_thread()
>    *         \- handle_nested_irq(i)
>    */
> -static struct irq_chip wcd_irq_chip = {
> +static const struct irq_chip wcd_irq_chip = {
>   	.name = "WCD939x",
>   };
>   
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

[PATCH 21/23] ASoC: codecs: wcd939x: Constify wcd939x_sdw_ch_info

[Krzysztof Kozlowski]

Driver does not modify static wcd939x_sdw_ch_info array, so it can be
made const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd939x-sdw.c | 4 ++--
 sound/soc/codecs/wcd939x.c     | 2 +-
 sound/soc/codecs/wcd939x.h     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
index 8acb5651c5bc..94b1e99a3ca0 100644
--- a/sound/soc/codecs/wcd939x-sdw.c
+++ b/sound/soc/codecs/wcd939x-sdw.c
@@ -23,7 +23,7 @@
 
 #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
 
-static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
+static const struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HPH_L, WCD939X_HPH_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_HPH_R, WCD939X_HPH_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_CLSH, WCD939X_CLSH_PORT, BIT(0)),
@@ -36,7 +36,7 @@ static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_HIFI_PCM_R, WCD939X_HIFI_PCM_PORT, BIT(1)),
 };
 
-static struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
+static const struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
 	WCD_SDW_CH(WCD939X_ADC1, WCD939X_ADC_1_4_PORT, BIT(0)),
 	WCD_SDW_CH(WCD939X_ADC2, WCD939X_ADC_1_4_PORT, BIT(1)),
 	WCD_SDW_CH(WCD939X_ADC3, WCD939X_ADC_1_4_PORT, BIT(2)),
diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
index 1f94f49f9829..66af035bd0e5 100644
--- a/sound/soc/codecs/wcd939x.c
+++ b/sound/soc/codecs/wcd939x.c
@@ -414,7 +414,7 @@ static int wcd939x_io_init(struct snd_soc_component *component)
 	return 0;
 }
 
-static int wcd939x_sdw_connect_port(struct wcd939x_sdw_ch_info *ch_info,
+static int wcd939x_sdw_connect_port(const struct wcd939x_sdw_ch_info *ch_info,
 				    struct sdw_port_config *port_config,
 				    u8 enable)
 {
diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index 756f497a337c..a6c9c6cee056 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -914,7 +914,7 @@ struct wcd939x_sdw_priv {
 	struct sdw_stream_config sconfig;
 	struct sdw_stream_runtime *sruntime;
 	struct sdw_port_config port_config[WCD939X_MAX_SWR_PORTS];
-	struct wcd939x_sdw_ch_info *ch_info;
+	const struct wcd939x_sdw_ch_info *ch_info;
 	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
 	int active_ports;
 	int num_ports;

-- 
2.43.0

Re: [PATCH 21/23] ASoC: codecs: wcd939x: Constify wcd939x_sdw_ch_info

[neil.armstrong]

On 12/06/2024 18:15, Krzysztof Kozlowski wrote:
> Driver does not modify static wcd939x_sdw_ch_info array, so it can be
> made const for code safety.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>   sound/soc/codecs/wcd939x-sdw.c | 4 ++--
>   sound/soc/codecs/wcd939x.c     | 2 +-
>   sound/soc/codecs/wcd939x.h     | 2 +-
>   3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/soc/codecs/wcd939x-sdw.c b/sound/soc/codecs/wcd939x-sdw.c
> index 8acb5651c5bc..94b1e99a3ca0 100644
> --- a/sound/soc/codecs/wcd939x-sdw.c
> +++ b/sound/soc/codecs/wcd939x-sdw.c
> @@ -23,7 +23,7 @@
>   
>   #define SWRS_SCP_HOST_CLK_DIV2_CTL_BANK(m) (0xE0 + 0x10 * (m))
>   
> -static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
> +static const struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
>   	WCD_SDW_CH(WCD939X_HPH_L, WCD939X_HPH_PORT, BIT(0)),
>   	WCD_SDW_CH(WCD939X_HPH_R, WCD939X_HPH_PORT, BIT(1)),
>   	WCD_SDW_CH(WCD939X_CLSH, WCD939X_CLSH_PORT, BIT(0)),
> @@ -36,7 +36,7 @@ static struct wcd939x_sdw_ch_info wcd939x_sdw_rx_ch_info[] = {
>   	WCD_SDW_CH(WCD939X_HIFI_PCM_R, WCD939X_HIFI_PCM_PORT, BIT(1)),
>   };
>   
> -static struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
> +static const struct wcd939x_sdw_ch_info wcd939x_sdw_tx_ch_info[] = {
>   	WCD_SDW_CH(WCD939X_ADC1, WCD939X_ADC_1_4_PORT, BIT(0)),
>   	WCD_SDW_CH(WCD939X_ADC2, WCD939X_ADC_1_4_PORT, BIT(1)),
>   	WCD_SDW_CH(WCD939X_ADC3, WCD939X_ADC_1_4_PORT, BIT(2)),
> diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c
> index 1f94f49f9829..66af035bd0e5 100644
> --- a/sound/soc/codecs/wcd939x.c
> +++ b/sound/soc/codecs/wcd939x.c
> @@ -414,7 +414,7 @@ static int wcd939x_io_init(struct snd_soc_component *component)
>   	return 0;
>   }
>   
> -static int wcd939x_sdw_connect_port(struct wcd939x_sdw_ch_info *ch_info,
> +static int wcd939x_sdw_connect_port(const struct wcd939x_sdw_ch_info *ch_info,
>   				    struct sdw_port_config *port_config,
>   				    u8 enable)
>   {
> diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
> index 756f497a337c..a6c9c6cee056 100644
> --- a/sound/soc/codecs/wcd939x.h
> +++ b/sound/soc/codecs/wcd939x.h
> @@ -914,7 +914,7 @@ struct wcd939x_sdw_priv {
>   	struct sdw_stream_config sconfig;
>   	struct sdw_stream_runtime *sruntime;
>   	struct sdw_port_config port_config[WCD939X_MAX_SWR_PORTS];
> -	struct wcd939x_sdw_ch_info *ch_info;
> +	const struct wcd939x_sdw_ch_info *ch_info;
>   	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
>   	int active_ports;
>   	int num_ports;
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

[PATCH 22/23] ASoC: codecs: wcd939x: Drop unused RX/TX direction enum

[Krzysztof Kozlowski]

The enum with RX/TX soundwire direction is not used.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd939x.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index a6c9c6cee056..0aa4d9d542c6 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -903,11 +903,6 @@ enum wcd939x_rx_sdw_channels {
 	WCD939X_HIFI_PCM_R,
 };
 
-enum {
-	WCD939X_SDW_DIR_RX,
-	WCD939X_SDW_DIR_TX,
-};
-
 struct wcd939x_priv;
 struct wcd939x_sdw_priv {
 	struct sdw_slave *sdev;

-- 
2.43.0

Re: [PATCH 22/23] ASoC: codecs: wcd939x: Drop unused RX/TX direction enum

[neil.armstrong]

On 12/06/2024 18:15, Krzysztof Kozlowski wrote:
> The enum with RX/TX soundwire direction is not used.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>   sound/soc/codecs/wcd939x.h | 5 -----
>   1 file changed, 5 deletions(-)
> 
> diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
> index a6c9c6cee056..0aa4d9d542c6 100644
> --- a/sound/soc/codecs/wcd939x.h
> +++ b/sound/soc/codecs/wcd939x.h
> @@ -903,11 +903,6 @@ enum wcd939x_rx_sdw_channels {
>   	WCD939X_HIFI_PCM_R,
>   };
>   
> -enum {
> -	WCD939X_SDW_DIR_RX,
> -	WCD939X_SDW_DIR_TX,
> -};
> -
>   struct wcd939x_priv;
>   struct wcd939x_sdw_priv {
>   	struct sdw_slave *sdev;
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

[PATCH 23/23] ASoC: codecs: wcd939x: Drop unused num_ports field

[Krzysztof Kozlowski]

The driver does not use few 'num_ports' in 'struct wcd939x_sdw_priv'.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 sound/soc/codecs/wcd939x.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
index 0aa4d9d542c6..1571c2120cfc 100644
--- a/sound/soc/codecs/wcd939x.h
+++ b/sound/soc/codecs/wcd939x.h
@@ -912,7 +912,6 @@ struct wcd939x_sdw_priv {
 	const struct wcd939x_sdw_ch_info *ch_info;
 	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
 	int active_ports;
-	int num_ports;
 	bool is_tx;
 	struct wcd939x_priv *wcd939x;
 	struct irq_domain *slave_irq;

-- 
2.43.0

Re: [PATCH 23/23] ASoC: codecs: wcd939x: Drop unused num_ports field

[neil.armstrong]

On 12/06/2024 18:15, Krzysztof Kozlowski wrote:
> The driver does not use few 'num_ports' in 'struct wcd939x_sdw_priv'.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>   sound/soc/codecs/wcd939x.h | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/sound/soc/codecs/wcd939x.h b/sound/soc/codecs/wcd939x.h
> index 0aa4d9d542c6..1571c2120cfc 100644
> --- a/sound/soc/codecs/wcd939x.h
> +++ b/sound/soc/codecs/wcd939x.h
> @@ -912,7 +912,6 @@ struct wcd939x_sdw_priv {
>   	const struct wcd939x_sdw_ch_info *ch_info;
>   	bool port_enable[WCD939X_MAX_SWR_CH_IDS];
>   	int active_ports;
> -	int num_ports;
>   	bool is_tx;
>   	struct wcd939x_priv *wcd939x;
>   	struct irq_domain *slave_irq;
> 

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH 00/23] ASoC: codecs: wcd family: cleanups

[Mark Brown]

On Wed, 12 Jun 2024 18:15:13 +0200, Krzysztof Kozlowski wrote:
> Set of simple cleanups from similar issues in all Qualcomm WCD93xx
> codecs.
> 
> The first patch "ASoC: codecs: wcd-mbhc: Constify passed MBHC reg
> fields" is a requirement for few others, but except this they are
> independent.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[01/23] ASoC: codecs: wcd-mbhc: Constify passed MBHC reg fields
        commit: e565ab184946650f19afb9fe74f8be84fcb6d210
[02/23] ASoC: codecs: wcd9335: Drop unused state container fields
        commit: 60ce48f5311103dd7a09e12d0b75d7ec44e291d9
[03/23] ASoC: codecs: wcd9335: Constify static data
        commit: b2ff7c88bf751fa502f5707f0b7b047afcba87dc
[04/23] ASoC: codecs: wcd9335: Handle nicer probe deferral and simplify with dev_err_probe()
        commit: 4a03b5dbad466c902d522f3405daa4e5d80578c5
[05/23] ASoC: codecs: wcd9335: Drop unneeded error message
        commit: 3ed4beba49463997eb9a4afa0d46ece7dc5dbf19
[06/23] ASoC: codecs: wcd9335: Drop unused dmic rate handling
        commit: 1d1cda22da5db03a0c794d139e06519e3a94f815
[07/23] ASoC: codecs: wcd934x: Drop unused interp path enum
        commit: 1bce5c586ba56dfa6acf8d13f0f608f5f5d717bd
[08/23] ASoC: codecs: wcd934x: Constify static data
        commit: 5ad81bf49a18dc22bd7e1c56f67be9b5eb50267c
[09/23] ASoC: codecs: wcd934x: Drop unused mic bias voltage fields
        commit: a252188244aeff72e4331abba2fee6b9093c847b
[10/23] ASoC: codecs: wcd934x: Handle nicer probe deferral and simplify with dev_err_probe()
        commit: 9ea22713227397b56a2b36a68c8bda13f0b43d70
[11/23] ASoC: codecs: wcd937x: Constify static data
        commit: 0ad42c04e9b223d913ad4b1463c0f1cdc00f3cc5
[12/23] ASoC: codecs: wcd937x: Constify wcd937x_sdw_ch_info
        commit: c8ed66cbc3b7ccd9e5ae98b06023c1fe3e834ca8
[13/23] ASoC: codecs: wcd937x: Drop unused enums, defines and types
        commit: d8e746719d705427e69c7f0ac2ca20aaf560a03e
[14/23] ASoC: codecs: wcd937x: Drop unused state container fields
        commit: c2d9fd2e94588eb83f8855e942d77b5f539c5a5f
[15/23] ASoC: codecs: wcd937x: Drop unused chipid member
        commit: 6dc7b8a10419a267cd5eb7ac2bb407f7fc7865e2
[16/23] ASoC: codecs: wcd938x: Constify static data
        commit: 424e6bc4328b39a924cc2acb251868cfd23fe369
[17/23] ASoC: codecs: wcd938x: Constify wcd938x_sdw_ch_info
        commit: af57d5e3b58886ee5efc6ba9d0e25c8d1d3c3c37
[18/23] ASoC: codecs: wcd938x: Drop unused RX/TX direction enum
        commit: 43e7400f6bf51ecedf4ddad942cd812fe351ce74
[19/23] ASoC: codecs: wcd938x: Drop unused num_ports field
        commit: 3f1deca19e68e48bd89a72c4fe648275d9af574b
[20/23] ASoC: codecs: wcd939x: Constify static data
        commit: 8e5d5b2c96fadecdaebff5afcbb7f51580701122
[21/23] ASoC: codecs: wcd939x: Constify wcd939x_sdw_ch_info
        commit: f49100faccb5d2ffb4c9e5e4bba6173f5ac43d22
[22/23] ASoC: codecs: wcd939x: Drop unused RX/TX direction enum
        commit: 2642b6aa9d0f43c52c83461bc7ae4917336e7643
[23/23] ASoC: codecs: wcd939x: Drop unused num_ports field
        commit: 34935cd4721f0492eafbc516dd1fc7f5f687fa76

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark