From 944b5c7146fbd0a68f501d9a8a87c3fc5767a3de Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Tue, 18 Jul 2023 13:40:13 +0200 Subject: [PATCH 1/5] ASoC: dt-bindings: pm8916-analog-codec: Fix misleading example SPMI devices typically have a single address cell and no size cell, i.e. reg = <0xf000> for the audio codec instead of reg = <0xf000 0x200>. The example is a bit misleading because it uses the latter. Copying this into the device tree would be incorrect and was fixed before for pm8916.dtsi in commit c2f0cbb57dba ("arm64: dts: qcom: pm8916: Remove invalid reg size from wcd_codec"). Make the example more clear by adding the outer "pmic" node which specifies the same #address/size-cells that would be used in the real deivce tree. Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20230718-pm8916-mclk-v1-1-4b4a58b4240a@gerhold.net Signed-off-by: Mark Brown --- .../sound/qcom,pm8916-wcd-analog-codec.yaml | 92 ++++++++++--------- 1 file changed, 50 insertions(+), 42 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml index c385028c42967..77e3cfba47463 100644 --- a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml @@ -115,46 +115,54 @@ examples: - | #include #include - - audio-codec@f000{ - compatible = "qcom,pm8916-wcd-analog-codec"; - reg = <0xf000 0x200>; - reg-names = "pmic-codec-core"; - clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>; - clock-names = "mclk"; - qcom,mbhc-vthreshold-low = <75 150 237 450 500>; - qcom,mbhc-vthreshold-high = <75 150 237 450 500>; - interrupt-parent = <&spmi_bus>; - interrupts = <0x1 0xf0 0x0 IRQ_TYPE_NONE>, - <0x1 0xf0 0x1 IRQ_TYPE_NONE>, - <0x1 0xf0 0x2 IRQ_TYPE_NONE>, - <0x1 0xf0 0x3 IRQ_TYPE_NONE>, - <0x1 0xf0 0x4 IRQ_TYPE_NONE>, - <0x1 0xf0 0x5 IRQ_TYPE_NONE>, - <0x1 0xf0 0x6 IRQ_TYPE_NONE>, - <0x1 0xf0 0x7 IRQ_TYPE_NONE>, - <0x1 0xf1 0x0 IRQ_TYPE_NONE>, - <0x1 0xf1 0x1 IRQ_TYPE_NONE>, - <0x1 0xf1 0x2 IRQ_TYPE_NONE>, - <0x1 0xf1 0x3 IRQ_TYPE_NONE>, - <0x1 0xf1 0x4 IRQ_TYPE_NONE>, - <0x1 0xf1 0x5 IRQ_TYPE_NONE>; - interrupt-names = "cdc_spk_cnp_int", - "cdc_spk_clip_int", - "cdc_spk_ocp_int", - "mbhc_ins_rem_det1", - "mbhc_but_rel_det", - "mbhc_but_press_det", - "mbhc_ins_rem_det", - "mbhc_switch_int", - "cdc_ear_ocp_int", - "cdc_hphr_ocp_int", - "cdc_hphl_ocp_det", - "cdc_ear_cnp_int", - "cdc_hphr_cnp_int", - "cdc_hphl_cnp_int"; - vdd-cdc-io-supply = <&pm8916_l5>; - vdd-cdc-tx-rx-cx-supply = <&pm8916_l5>; - vdd-micbias-supply = <&pm8916_l13>; - #sound-dai-cells = <1>; + #include + + pmic@1 { + compatible = "qcom,pm8916", "qcom,spmi-pmic"; + reg = <0x1 SPMI_USID>; + #address-cells = <1>; + #size-cells = <0>; + + audio-codec@f000 { + compatible = "qcom,pm8916-wcd-analog-codec"; + reg = <0xf000>; + reg-names = "pmic-codec-core"; + clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>; + clock-names = "mclk"; + qcom,mbhc-vthreshold-low = <75 150 237 450 500>; + qcom,mbhc-vthreshold-high = <75 150 237 450 500>; + interrupt-parent = <&spmi_bus>; + interrupts = <0x1 0xf0 0x0 IRQ_TYPE_NONE>, + <0x1 0xf0 0x1 IRQ_TYPE_NONE>, + <0x1 0xf0 0x2 IRQ_TYPE_NONE>, + <0x1 0xf0 0x3 IRQ_TYPE_NONE>, + <0x1 0xf0 0x4 IRQ_TYPE_NONE>, + <0x1 0xf0 0x5 IRQ_TYPE_NONE>, + <0x1 0xf0 0x6 IRQ_TYPE_NONE>, + <0x1 0xf0 0x7 IRQ_TYPE_NONE>, + <0x1 0xf1 0x0 IRQ_TYPE_NONE>, + <0x1 0xf1 0x1 IRQ_TYPE_NONE>, + <0x1 0xf1 0x2 IRQ_TYPE_NONE>, + <0x1 0xf1 0x3 IRQ_TYPE_NONE>, + <0x1 0xf1 0x4 IRQ_TYPE_NONE>, + <0x1 0xf1 0x5 IRQ_TYPE_NONE>; + interrupt-names = "cdc_spk_cnp_int", + "cdc_spk_clip_int", + "cdc_spk_ocp_int", + "mbhc_ins_rem_det1", + "mbhc_but_rel_det", + "mbhc_but_press_det", + "mbhc_ins_rem_det", + "mbhc_switch_int", + "cdc_ear_ocp_int", + "cdc_hphr_ocp_int", + "cdc_hphl_ocp_det", + "cdc_ear_cnp_int", + "cdc_hphr_cnp_int", + "cdc_hphl_cnp_int"; + vdd-cdc-io-supply = <&pm8916_l5>; + vdd-cdc-tx-rx-cx-supply = <&pm8916_l5>; + vdd-micbias-supply = <&pm8916_l13>; + #sound-dai-cells = <1>; + }; }; From dfc491e55255a96b2d43cdb74db10d4222890769 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Tue, 18 Jul 2023 13:40:14 +0200 Subject: [PATCH 2/5] ASoC: dt-bindings: pm8916-analog-codec: Drop pointless reg-names pm8916-wcd-analog-codec has just a single reg region, so having a name for it provides no additional value. Drop it completely from the schema and example. There is not really any point in keeping it (even as deprecated) because it was never used. In old DTBs it will just be ignored as before. Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20230718-pm8916-mclk-v1-2-4b4a58b4240a@gerhold.net Signed-off-by: Mark Brown --- .../bindings/sound/qcom,pm8916-wcd-analog-codec.yaml | 5 ----- 1 file changed, 5 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml index 77e3cfba47463..5053799c88b5f 100644 --- a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml @@ -19,10 +19,6 @@ properties: reg: maxItems: 1 - reg-names: - items: - - const: pmic-codec-core - clocks: maxItems: 1 @@ -126,7 +122,6 @@ examples: audio-codec@f000 { compatible = "qcom,pm8916-wcd-analog-codec"; reg = <0xf000>; - reg-names = "pmic-codec-core"; clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>; clock-names = "mclk"; qcom,mbhc-vthreshold-low = <75 150 237 450 500>; From 469c6d9cd1cfb468f01a15f940272504a6b5d083 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Tue, 18 Jul 2023 13:40:15 +0200 Subject: [PATCH 3/5] ASoC: dt-bindings: pm8916-analog-codec: Drop invalid mclk The audio codec typically used for the MSM8916 SoC is split into two parts: the digital codec is part of the SoC, while the analog codec is part of the PM8916 PMIC. The analog codec in the PMIC has no direct connection to the mclk of the SoC (GCC_CODEC_DIGCODEC_CLK). As the name of the clock suggests this is supplied to the digital part of the codec. During playback it will use this clock to transmit the audio data via the "CDC PDM" pins to the PMIC. In this case the analog codec indirectly receives the clock signal through the digital codec. GCC_CODEC_DIGCODEC_CLK is already managed by the driver of the digital part of the codec in the SoC. Having this clock on the analog PMIC part additionally is redundant and incorrect because the analog codec cannot receive the clock signal without going through the digital codec. Cc: Srinivas Kandagatla Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20230718-pm8916-mclk-v1-3-4b4a58b4240a@gerhold.net Signed-off-by: Mark Brown --- .../bindings/sound/qcom,pm8916-wcd-analog-codec.yaml | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml index 5053799c88b5f..94e7a1860977e 100644 --- a/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,pm8916-wcd-analog-codec.yaml @@ -19,13 +19,6 @@ properties: reg: maxItems: 1 - clocks: - maxItems: 1 - - clock-names: - items: - - const: mclk - interrupts: maxItems: 14 @@ -109,7 +102,6 @@ additionalProperties: false examples: - | - #include #include #include @@ -122,8 +114,6 @@ examples: audio-codec@f000 { compatible = "qcom,pm8916-wcd-analog-codec"; reg = <0xf000>; - clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>; - clock-names = "mclk"; qcom,mbhc-vthreshold-low = <75 150 237 450 500>; qcom,mbhc-vthreshold-high = <75 150 237 450 500>; interrupt-parent = <&spmi_bus>; From 97f29c1a6143762626f4f9bd9fc2f8a2282b9dcd Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Tue, 18 Jul 2023 13:40:16 +0200 Subject: [PATCH 4/5] ASoC: codecs: msm8916-wcd-analog: Drop invalid mclk The audio codec typically used for the MSM8916 SoC is split into two parts: the digital codec is part of the SoC, while the analog codec is part of the PM8916 PMIC. The analog codec in the PMIC has no direct connection to the mclk of the SoC (GCC_CODEC_DIGCODEC_CLK). As the name of the clock suggests this is supplied to the digital part of the codec. During playback it will use this clock to transmit the audio data via the "CDC PDM" pins to the PMIC. In this case the analog codec indirectly receives the clock signal through the digital codec. GCC_CODEC_DIGCODEC_CLK is already managed by the driver of the digital part of the codec in the SoC. Having this clock on the analog PMIC part additionally is redundant and incorrect because the analog codec cannot receive the clock signal without going through the digital codec. Cc: Srinivas Kandagatla Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20230718-pm8916-mclk-v1-4-4b4a58b4240a@gerhold.net Signed-off-by: Mark Brown --- sound/soc/codecs/msm8916-wcd-analog.c | 43 ++++----------------------- 1 file changed, 6 insertions(+), 37 deletions(-) diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c index cec90cf920ff7..d4456a714c97f 100644 --- a/sound/soc/codecs/msm8916-wcd-analog.c +++ b/sound/soc/codecs/msm8916-wcd-analog.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include #include @@ -1198,12 +1197,6 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) if (ret < 0) return ret; - priv->mclk = devm_clk_get(dev, "mclk"); - if (IS_ERR(priv->mclk)) { - dev_err(dev, "failed to get mclk\n"); - return PTR_ERR(priv->mclk); - } - for (i = 0; i < ARRAY_SIZE(supply_names); i++) priv->supplies[i].supply = supply_names[i]; @@ -1214,17 +1207,9 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) return ret; } - ret = clk_prepare_enable(priv->mclk); - if (ret < 0) { - dev_err(dev, "failed to enable mclk %d\n", ret); - return ret; - } - irq = platform_get_irq_byname(pdev, "mbhc_switch_int"); - if (irq < 0) { - ret = irq; - goto err_disable_clk; - } + if (irq < 0) + return irq; ret = devm_request_threaded_irq(dev, irq, NULL, pm8916_mbhc_switch_irq_handler, @@ -1236,10 +1221,8 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) if (priv->mbhc_btn_enabled) { irq = platform_get_irq_byname(pdev, "mbhc_but_press_det"); - if (irq < 0) { - ret = irq; - goto err_disable_clk; - } + if (irq < 0) + return irq; ret = devm_request_threaded_irq(dev, irq, NULL, mbhc_btn_press_irq_handler, @@ -1250,10 +1233,8 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) dev_err(dev, "cannot request mbhc button press irq\n"); irq = platform_get_irq_byname(pdev, "mbhc_but_rel_det"); - if (irq < 0) { - ret = irq; - goto err_disable_clk; - } + if (irq < 0) + return irq; ret = devm_request_threaded_irq(dev, irq, NULL, mbhc_btn_release_irq_handler, @@ -1270,17 +1251,6 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) return devm_snd_soc_register_component(dev, &pm8916_wcd_analog, pm8916_wcd_analog_dai, ARRAY_SIZE(pm8916_wcd_analog_dai)); - -err_disable_clk: - clk_disable_unprepare(priv->mclk); - return ret; -} - -static void pm8916_wcd_analog_spmi_remove(struct platform_device *pdev) -{ - struct pm8916_wcd_analog_priv *priv = dev_get_drvdata(&pdev->dev); - - clk_disable_unprepare(priv->mclk); } static const struct of_device_id pm8916_wcd_analog_spmi_match_table[] = { @@ -1296,7 +1266,6 @@ static struct platform_driver pm8916_wcd_analog_spmi_driver = { .of_match_table = pm8916_wcd_analog_spmi_match_table, }, .probe = pm8916_wcd_analog_spmi_probe, - .remove_new = pm8916_wcd_analog_spmi_remove, }; module_platform_driver(pm8916_wcd_analog_spmi_driver); From 5c0f9652da47061ed3f7815c1dfeb205c545ce54 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Tue, 18 Jul 2023 13:40:17 +0200 Subject: [PATCH 5/5] ASoC: codecs: msm8916-wcd-analog: Properly handle probe errors The probe() function fails with an error for platform_get_irq_byname() but only logs when devm_request_threaded_irq() fails. Make this consistent and fail to probe in that case as well. In practice this should never happen unless something is really wrong. Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20230718-pm8916-mclk-v1-5-4b4a58b4240a@gerhold.net Signed-off-by: Mark Brown --- sound/soc/codecs/msm8916-wcd-analog.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c index d4456a714c97f..9ca3818129755 100644 --- a/sound/soc/codecs/msm8916-wcd-analog.c +++ b/sound/soc/codecs/msm8916-wcd-analog.c @@ -1216,8 +1216,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc switch irq", priv); - if (ret) + if (ret) { dev_err(dev, "cannot request mbhc switch irq\n"); + return ret; + } if (priv->mbhc_btn_enabled) { irq = platform_get_irq_byname(pdev, "mbhc_but_press_det"); @@ -1229,8 +1231,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc btn press irq", priv); - if (ret) + if (ret) { dev_err(dev, "cannot request mbhc button press irq\n"); + return ret; + } irq = platform_get_irq_byname(pdev, "mbhc_but_rel_det"); if (irq < 0) @@ -1241,9 +1245,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev) IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "mbhc btn release irq", priv); - if (ret) + if (ret) { dev_err(dev, "cannot request mbhc button release irq\n"); - + return ret; + } } dev_set_drvdata(dev, priv);