Linaro-mm-sig February 2024

linaro-mm-sig@lists.linaro.org

17 participants
45 discussions

Re: [PATCH 00/18] Add audio support for the MediaTek Genio 350-evk board

by Mark Brown

On Mon, Feb 26, 2024 at 03:01:38PM +0100, Alexandre Mergnat wrote: > This serie aim to add the following audio support for the Genio 350-evk: > - Playback > - 2ch Headset Jack (Earphone) > - 1ch Line-out Jack (Speaker) > - 8ch HDMI Tx > - Capture > - 1ch DMIC (On-board Digital Microphone) > - 1ch AMIC (On-board Analogic Microphone) > - 1ch Headset Jack (External Analogic Microphone) > > Of course, HDMI playback need the MT8365 display patches [1] and a DTS > change documented in "mediatek,mt8365-mt6357.yaml". Given the number of custom controls here could you please post the output of mixer-test and pcm-test from a system with this driver running next time you post, this will help with review since it checks a bunch of things around the new controls.

7 months, 3 weeks

Re: [PATCH 02/18] ASoC: dt-bindings: mediatek,mt8365-mt6357: Add audio sound card document

by AngeloGioacchino Del Regno

Il 27/02/24 11:23, Alexandre Mergnat ha scritto: > > > On 26/02/2024 16:30, AngeloGioacchino Del Regno wrote: >> Il 26/02/24 15:01, Alexandre Mergnat ha scritto: >>> Add soundcard bindings for the MT8365 SoC with the MT6357 audio codec. >>> >>> Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> >>> --- >>> .../bindings/sound/mediatek,mt8365-mt6357.yaml | 127 +++++++++++++++++++++ >>> 1 file changed, 127 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml >>> b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml >>> new file mode 100644 >>> index 000000000000..f469611ec6b6 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml >>> @@ -0,0 +1,127 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/sound/mediatek,mt8365-mt6357.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Mediatek MT8365 sound card with MT6357 sound codec. >>> + >>> +maintainers: >>> + - Alexandre Mergnat <amergnat(a)baylibre.com> >>> + >>> +description: >>> + This binding describes the MT8365 sound card. >>> + >>> +properties: >>> + compatible: >>> + const: mediatek,mt8365-mt6357 >>> + >>> + mediatek,hp-pull-down: >>> + description: >>> + Earphone driver positive output stage short to the >>> + audio reference ground. >>> + Default value is false. >>> + type: boolean >>> + >>> + mediatek,micbias0-microvolt: >>> + description: | >> >> description: Selects MIC Bias 0 output voltage >> >>> + Selects MIC Bias 0 output voltage. >>> + [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v] >>> + enum: [0, 1, 2, 3, 4, 5, 6, 7] >> >> No, you don't say 0 1 2 3 4 to a property that says "microvolt", that's simply >> wrong. >> >> mediatek,micbias0-microvolt = <2100000>; >> >> ...so you want a binding that says >> enum: [ 1700000, 1800000, this, that, 2700000] >> > > Is it correct if I put "description: Selects MIC Bias 0 output voltage index" ? > No, it's still not correct. You have to pass microvolt values. The driver will then transform the microvolt values to the index and subsequently write the index value to the hardware registers. The bindings shall be generic, in the sense that they shall not express hardware register values... and this is especially true when we have a value that *does* actually have means to be expressed in common units. Besides, in the cases in which there's no common units involved, the values most probably won't be suited for devicetree//bindings, so those would be hardcoded in the driver as platform data. This is not the case, so, please keep this property but specify microvolts in the bindings (and obviously in devicetree). >>> + >>> + mediatek,micbias1-microvolt: >>> + description: | >>> + Selects MIC Bias 1 output voltage. >>> + [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v] >>> + enum: [0, 1, 2, 3, 4, 5, 6, 7] >> >> same here. >> >>> + >>> + mediatek,platform: >>> + $ref: /schemas/types.yaml#/definitions/phandle >>> + description: The phandle of MT8365 ASoC platform. >>> + >>> + pinctrl-names: >>> + minItems: 1 >>> + items: >>> + - const: aud_default >>> + - const: aud_dmic >>> + - const: aud_miso_off >>> + - const: aud_miso_on >>> + - const: aud_mosi_off >>> + - const: aud_mosi_on >>> + >>> + vaud28-supply: >>> + description: >>> + 2.8 volt supply for the audio codec >>> + >>> +patternProperties: >>> + "^dai-link-[0-9]+$": >>> + type: object >>> + description: >>> + Container for dai-link level properties and CODEC sub-nodes. >>> + >>> + properties: >>> + codec: >>> + type: object >>> + description: Holds subnode which indicates codec dai. >>> + >>> + properties: >>> + sound-dai: >>> + maxItems: 1 >>> + description: phandle of the codec DAI >>> + >>> + additionalProperties: false >>> + >>> + link-name: >>> + description: >>> + This property corresponds to the name of the BE dai-link to which >>> + we are going to update parameters in this node. >>> + items: >>> + const: 2ND I2S BE >>> + >>> + sound-dai: >>> + maxItems: 1 >>> + description: phandle of the CPU DAI >>> + >>> + additionalProperties: false >>> + >>> + required: >>> + - link-name >>> + - sound-dai >>> + >>> +additionalProperties: false >>> + >>> +required: >>> + - compatible >>> + - mediatek,platform >>> + - pinctrl-names >>> + - vaud28-supply >>> + >>> +examples: >>> + - | >>> + sound { >>> + compatible = "mediatek,mt8365-mt6357"; >>> + mediatek,platform = <&afe>; >> >> Please: >> >> https://docs.kernel.org/devicetree/bindings/dts-coding-style.html > > Is it about the wrong pinctrl-names tab alignment ? > Also, 2ND I2S BE => 2ND_I2S_BE ? > Otherwise, I don't get it sorry. > ...as Krzysztof already clarified, won't repeat :-P Cheers! >> >> Regards, >> Angelo >> >>> + pinctrl-names = "aud_default", >>> + "aud_dmic", >>> + "aud_miso_off", >>> + "aud_miso_on", >>> + "aud_mosi_off", >>> + "aud_mosi_on"; >>> + pinctrl-0 = <&aud_default_pins>; >>> + pinctrl-1 = <&aud_dmic_pins>; >>> + pinctrl-2 = <&aud_miso_off_pins>; >>> + pinctrl-3 = <&aud_miso_on_pins>; >>> + pinctrl-4 = <&aud_mosi_off_pins>; >>> + pinctrl-5 = <&aud_mosi_on_pins>; >>> + vaud28-supply = <&mt6357_vaud28_reg>; >>> + >>> + /* hdmi interface */ >>> + dai-link-0 { >>> + sound-dai = <&afe>; >>> + link-name = "2ND I2S BE"; >>> + >>> + codec { >>> + sound-dai = <&it66121hdmitx>; >>> + }; >>> + }; >>> + }; >>> >> >

7 months, 3 weeks

Re: [PATCH 02/18] ASoC: dt-bindings: mediatek,mt8365-mt6357: Add audio sound card document

by Krzysztof Kozlowski

On 27/02/2024 11:23, Alexandre Mergnat wrote: >>> + >>> +examples: >>> + - | >>> + sound { >>> + compatible = "mediatek,mt8365-mt6357"; >>> + mediatek,platform = <&afe>; >> >> Please: >> >> https://docs.kernel.org/devicetree/bindings/dts-coding-style.html > > Is it about the wrong pinctrl-names tab alignment ? > Also, 2ND I2S BE => 2ND_I2S_BE ? > Otherwise, I don't get it sorry. Alignment of continued lines, order of properties. Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 08/18] ASoC: mediatek: mt8365: Add DMIC DAI support

by Krzysztof Kozlowski

On 26/02/2024 15:01, Alexandre Mergnat wrote: > Add Digital Micro Device Audio Interface support for MT8365 SoC. > > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> > + > +static int init_dmic_priv_data(struct mtk_base_afe *afe) > +{ > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + struct mt8365_dmic_data *dmic_priv; > + struct device_node *np = afe->dev->of_node; > + unsigned int temps[4]; > + int ret; > + > + dmic_priv = devm_kzalloc(afe->dev, sizeof(struct mt8365_dmic_data), > + GFP_KERNEL); You have very inconsistent style of coding. Some patches are done correctly, some repeast known issues. All over. This is sizeof(*). This comment (and all others) apply everywhere, just in case. Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 03/18] dt-bindings: mfd: mediatek: Add codec property for MT6357 PMIC

by Krzysztof Kozlowski

On 26/02/2024 15:01, Alexandre Mergnat wrote: > Add the codec property along with the mt6357.c codec driver support. Describe the hardware, not the Linux drivers. There is no codec driver support in the bindings. https://elixir.bootlin.com/linux/v6.8-rc6/source/Documentation/devicetree/b… > > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> > --- > Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml > index 37423c2e0fdf..d25a78070744 100644 > --- a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml > +++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml > @@ -37,6 +37,17 @@ properties: > "#interrupt-cells": > const: 2 > > + codec: > + type: object > + unevaluatedProperties: false > + description: > + MT6357 sound codec. > + properties: > + compatible: > + const: mediatek,mt6357-sound > + required: > + - compatible No resources? Then no need for this node. We have it even documented (if my repeating every time is not enough)... https://elixir.bootlin.com/linux/v6.8-rc6/source/Documentation/devicetree/b… Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 02/18] ASoC: dt-bindings: mediatek,mt8365-mt6357: Add audio sound card document

by Krzysztof Kozlowski

On 26/02/2024 15:01, Alexandre Mergnat wrote: > Add soundcard bindings for the MT8365 SoC with the MT6357 audio codec. > > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> > --- > .../bindings/sound/mediatek,mt8365-mt6357.yaml | 127 +++++++++++++++++++++ > 1 file changed, 127 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml > new file mode 100644 > index 000000000000..f469611ec6b6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml > @@ -0,0 +1,127 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/mediatek,mt8365-mt6357.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Mediatek MT8365 sound card with MT6357 sound codec. Drop full stop. This is title. > + > +maintainers: > + - Alexandre Mergnat <amergnat(a)baylibre.com> > + > +description: > + This binding describes the MT8365 sound card. Say something useful. There is no need to say that binding is a binding describing something. Or just drop it if this is obvious. > + > +properties: > + compatible: > + const: mediatek,mt8365-mt6357 > + > + mediatek,hp-pull-down: > + description: > + Earphone driver positive output stage short to the > + audio reference ground. > + Default value is false. That's obvious, isn't it? Drop. > + type: boolean > + > + mediatek,micbias0-microvolt: > + description: | > + Selects MIC Bias 0 output voltage. > + [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v] > + enum: [0, 1, 2, 3, 4, 5, 6, 7] 0 is 0V, not 1.7! That's total mess. You use here microvolts. Look at property name. > + > + mediatek,micbias1-microvolt: > + description: | > + Selects MIC Bias 1 output voltage. > + [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v] > + enum: [0, 1, 2, 3, 4, 5, 6, 7] > + > + mediatek,platform: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: The phandle of MT8365 ASoC platform. > + > + pinctrl-names: > + minItems: 1 > + items: > + - const: aud_default Drop redundant parts. aud looks like block name. > + - const: aud_dmic > + - const: aud_miso_off > + - const: aud_miso_on > + - const: aud_mosi_off > + - const: aud_mosi_on > + > + vaud28-supply: > + description: > + 2.8 volt supply for the audio codec > + > +patternProperties: > + "^dai-link-[0-9]+$": > + type: object > + description: > + Container for dai-link level properties and CODEC sub-nodes. > + > + properties: > + codec: > + type: object > + description: Holds subnode which indicates codec dai. > + > + properties: > + sound-dai: > + maxItems: 1 > + description: phandle of the codec DAI > + > + additionalProperties: false > + > + link-name: > + description: > + This property corresponds to the name of the BE dai-link to which > + we are going to update parameters in this node. > + items: > + const: 2ND I2S BE > + > + sound-dai: > + maxItems: 1 > + description: phandle of the CPU DAI > + > + additionalProperties: false > + > + required: > + - link-name > + - sound-dai > + > +additionalProperties: false This goes after required: block. See example schema. > + > +required: > + - compatible > + - mediatek,platform > + - pinctrl-names > + - vaud28-supply > + Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 01/18] ASoC: dt-bindings: mediatek,mt8365-afe: Add audio afe document

by Krzysztof Kozlowski

On 26/02/2024 15:01, Alexandre Mergnat wrote: > Add MT8365 audio front-end bindings > > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> > --- > .../bindings/sound/mediatek,mt8365-afe.yaml | 164 +++++++++++++++++++++ > 1 file changed, 164 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml > new file mode 100644 > index 000000000000..1d7eb2532ad2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml > @@ -0,0 +1,164 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/mediatek,mt8365-afe.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: MediaTek AFE PCM controller for MT8365 > + > +maintainers: > + - Alexandre Mergnat <amergnat(a)baylibre.com> > + > +properties: > + compatible: > + const: mediatek,mt8365-afe-pcm > + > + reg: > + maxItems: 2 You must describe the items. > + > + interrupts: > + maxItems: 1 > + > + mediatek,topckgen: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: The phandle of the mediatek topckgen controller What for? Don't repeat the property name. Say something useful. > + > + power-domains: > + maxItems: 1 > + > + "#sound-dai-cells": > + const: 0 > + > + clocks: > + items: > + - description: 26M clock > + - description: mux for audio clock > + - description: audio i2s0 mck > + - description: audio i2s1 mck > + - description: audio i2s2 mck > + - description: audio i2s3 mck > + - description: engen 1 clock > + - description: engen 2 clock > + - description: audio 1 clock > + - description: audio 2 clock > + - description: mux for i2s0 > + - description: mux for i2s1 > + - description: mux for i2s2 > + - description: mux for i2s3 > + > + clock-names: > + items: > + - const: top_clk26m_clk > + - const: top_audio_sel > + - const: audio_i2s0_m > + - const: audio_i2s1_m > + - const: audio_i2s2_m > + - const: audio_i2s3_m > + - const: engen1 > + - const: engen2 > + - const: aud1 > + - const: aud2 > + - const: i2s0_m_sel > + - const: i2s1_m_sel > + - const: i2s2_m_sel > + - const: i2s3_m_sel > + > + mediatek,i2s-shared-clock: Why do you need this property? Linux (and other systems) handle sharing clocks properly. > + description: > + i2s modules can share the same external clock pin. > + If this property is not present the clock mode is separrate. Typo > + type: boolean > + > + mediatek,dmic-iir-on: > + description: > + Boolean which specifies whether the DMIC IIR is enabled. > + If this property is not present the IIR is disabled. "is enabled" or "enable it"? You described the desired Linux feature or behavior, not the actual hardware. The bindings are about the latter, so instead you need to rephrase the property and its description to match actual hardware capabilities/features/configuration etc. > + type: boolean > + > + mediatek,dmic-irr-mode: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + Selects stop band of IIR DC-removal filter. > + 0 = Software programmable custom coeff loaded by the driver. Bindings are for hardware, not drivers. Why is this a property of board DTS? > + 1 = 5Hz if 48KHz mode. > + 2 = 10Hz if 48KHz mode. > + 3 = 25Hz if 48KHz mode. > + 4 = 50Hz if 48KHz mode. > + 5 = 65Hz if 48KHz mode. Use proper unit suffixes - hz. > + enum: > + - 0 > + - 1 > + - 2 > + - 3 > + - 4 > + - 5 > + > + mediatek,dmic-two-wire-mode: > + description: > + Boolean which turns on digital microphone for two wire mode. > + If this property is not present the two wire mode is disabled. This looks like hardware property, but the naming looks like SW. Again you instruct what driver should do. Standard disclaimer: You described the desired Linux feature or behavior, not the actual hardware. The bindings are about the latter, so instead you need to rephrase the property and its description to match actual hardware capabilities/features/configuration etc. > + type: boolean > + > + Just one blank line. > +required: > + - compatible > + - reg > + - interrupts > + - power-domains > + - mediatek,topckgen > + - clocks > + - clock-names > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/mediatek,mt8365-clk.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + #include <dt-bindings/power/mediatek,mt8365-power.h> > + > + soc { > + #address-cells = <2>; > + #size-cells = <2>; > + > + afe@11220000 { What is AFE? https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetr… > + compatible = "mediatek,mt8365-afe-pcm"; Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 11/18] ASoC: mediatek: mt8365: Add platform driver

by Krzysztof Kozlowski

On 26/02/2024 15:01, Alexandre Mergnat wrote: > Add mt8365 platform driver. > > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> ... > + memif->substream = substream; > + > + snd_pcm_hw_constraint_step(substream->runtime, 0, > + SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16); > + > + snd_soc_set_runtime_hwparams(substream, mtk_afe_hardware); > + > + ret = snd_pcm_hw_constraint_integer(runtime, > + SNDRV_PCM_HW_PARAM_PERIODS); > + if (ret < 0) > + dev_err(afe->dev, "snd_pcm_hw_constraint_integer failed\n"); > + > + mt8365_afe_enable_main_clk(afe); > + return ret; > +} > + > +static void mt8365_afe_fe_shutdown(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + int memif_num = snd_soc_rtd_to_cpu(rtd, 0)->id; > + struct mtk_base_afe_memif *memif = &afe->memif[memif_num]; > + > + dev_dbg(afe->dev, "%s %s\n", __func__, memif->data->name); Drop trace-like prints. Tracing is for this. Before upstreaming driver from vendor repository, such stuff should be cleaned. > + > + memif->substream = NULL; > + > + mt8365_afe_disable_main_clk(afe); > +} > + > +static int mt8365_afe_fe_hw_params(struct snd_pcm_substream *substream, > + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) > +{ > + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + int dai_id = snd_soc_rtd_to_cpu(rtd, 0)->id; > + struct mt8365_control_data *ctrl_data = &afe_priv->ctrl_data; > + struct mtk_base_afe_memif *memif = &afe->memif[dai_id]; > + struct mt8365_fe_dai_data *fe_data = &afe_priv->fe_data[dai_id]; > + const size_t request_size = params_buffer_bytes(params); > + unsigned int channels = params_channels(params); > + unsigned int rate = params_rate(params); > + int ret, fs = 0; > + unsigned int base_end_offset = 8; > + > + dev_info(afe->dev, > + "%s %s period = %d rate = %d channels = %d\n", > + __func__, memif->data->name, params_period_size(params), > + rate, channels); > + > + if (dai_id == MT8365_AFE_MEMIF_VUL2) { > + if (!ctrl_data->bypass_cm1) > + /* configure cm1 */ > + mt8365_afe_configure_cm(afe, > + MT8365_CM1, channels, rate); > + else > + regmap_update_bits(afe->regmap, AFE_CM1_CON0, > + CM_AFE_CM1_VUL_SEL, CM_AFE_CM1_VUL_SEL); > + } else if (dai_id == MT8365_AFE_MEMIF_TDM_IN) { > + if (!ctrl_data->bypass_cm2) > + /* configure cm2 */ > + mt8365_afe_configure_cm(afe, > + MT8365_CM2, channels, rate); > + else > + regmap_update_bits(afe->regmap, AFE_CM2_CON0, > + CM_AFE_CM2_TDM_SEL, ~CM_AFE_CM2_TDM_SEL); > + > + base_end_offset = 4; > + } > + > + if (request_size > fe_data->sram_size) { > + ret = snd_pcm_lib_malloc_pages(substream, request_size); > + if (ret < 0) { > + dev_err(afe->dev, > + "%s %s malloc pages %zu bytes failed %d\n", > + __func__, memif->data->name, request_size, ret); > + return ret; > + } > + > + fe_data->use_sram = false; > + > + mt8365_afe_emi_clk_on(afe); > + } else { > + struct snd_dma_buffer *dma_buf = &substream->dma_buffer; > + > + dma_buf->dev.type = SNDRV_DMA_TYPE_DEV; > + dma_buf->dev.dev = substream->pcm->card->dev; > + dma_buf->area = (unsigned char *)fe_data->sram_vir_addr; > + dma_buf->addr = fe_data->sram_phy_addr; > + dma_buf->bytes = request_size; > + snd_pcm_set_runtime_buffer(substream, dma_buf); > + > + fe_data->use_sram = true; > + } > + > + memif->phys_buf_addr = lower_32_bits(substream->runtime->dma_addr); > + memif->buffer_size = substream->runtime->dma_bytes; > + > + /* start */ > + regmap_write(afe->regmap, memif->data->reg_ofs_base, > + memif->phys_buf_addr); > + /* end */ > + regmap_write(afe->regmap, > + memif->data->reg_ofs_base + base_end_offset, > + memif->phys_buf_addr + memif->buffer_size - 1); > + > + /* set channel */ > + if (memif->data->mono_shift >= 0) { > + unsigned int mono = (params_channels(params) == 1) ? 1 : 0; > + > + if (memif->data->mono_reg < 0) > + dev_info(afe->dev, "%s mono_reg is NULL\n", __func__); > + else > + regmap_update_bits(afe->regmap, memif->data->mono_reg, > + 1 << memif->data->mono_shift, > + mono << memif->data->mono_shift); > + } > + > + /* set rate */ > + if (memif->data->fs_shift < 0) > + return 0; > + > + fs = afe->memif_fs(substream, params_rate(params)); > + > + if (fs < 0) > + return -EINVAL; > + > + if (memif->data->fs_reg < 0) > + dev_info(afe->dev, "%s fs_reg is NULL\n", __func__); > + else > + regmap_update_bits(afe->regmap, memif->data->fs_reg, > + memif->data->fs_maskbit << memif->data->fs_shift, > + fs << memif->data->fs_shift); > + > + return 0; > +} > + > +static int mt8365_afe_fe_hw_free(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + int dai_id = snd_soc_rtd_to_cpu(rtd, 0)->id; > + struct mtk_base_afe_memif *memif = &afe->memif[dai_id]; > + struct mt8365_fe_dai_data *fe_data = &afe_priv->fe_data[dai_id]; > + int ret = 0; > + > + dev_dbg(afe->dev, "%s %s\n", __func__, memif->data->name); Drop > + > + if (fe_data->use_sram) { > + snd_pcm_set_runtime_buffer(substream, NULL); > + } else { > + ret = snd_pcm_lib_free_pages(substream); > + > + mt8365_afe_emi_clk_off(afe); > + } > + > + return ret; > +} > + > +static int mt8365_afe_fe_prepare(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + int dai_id = snd_soc_rtd_to_cpu(rtd, 0)->id; > + struct mtk_base_afe_memif *memif = &afe->memif[dai_id]; > + > + /* set format */ > + if (memif->data->hd_reg >= 0) { > + switch (substream->runtime->format) { > + case SNDRV_PCM_FORMAT_S16_LE: > + regmap_update_bits(afe->regmap, memif->data->hd_reg, > + 3 << memif->data->hd_shift, > + 0 << memif->data->hd_shift); > + break; > + case SNDRV_PCM_FORMAT_S32_LE: > + regmap_update_bits(afe->regmap, memif->data->hd_reg, > + 3 << memif->data->hd_shift, > + 3 << memif->data->hd_shift); > + > + if (dai_id == MT8365_AFE_MEMIF_TDM_IN) { > + regmap_update_bits(afe->regmap, > + memif->data->hd_reg, > + 3 << memif->data->hd_shift, > + 1 << memif->data->hd_shift); > + regmap_update_bits(afe->regmap, > + memif->data->hd_reg, > + 1 << memif->data->hd_align_mshift, > + 1 << memif->data->hd_align_mshift); > + } > + break; > + case SNDRV_PCM_FORMAT_S24_LE: > + regmap_update_bits(afe->regmap, memif->data->hd_reg, > + 3 << memif->data->hd_shift, > + 1 << memif->data->hd_shift); > + break; > + default: > + return -EINVAL; > + } > + } > + > + mt8365_afe_irq_direction_enable(afe, > + memif->irq_usage, > + MT8365_AFE_IRQ_DIR_MCU); > + > + return 0; > +} > + > +int mt8365_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd, > + struct snd_soc_dai *dai) > +{ > + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + int dai_id = snd_soc_rtd_to_cpu(rtd, 0)->id; > + struct mt8365_control_data *ctrl_data = &afe_priv->ctrl_data; > + > + switch (cmd) { > + case SNDRV_PCM_TRIGGER_START: > + case SNDRV_PCM_TRIGGER_RESUME: > + /* enable channel merge */ > + if (dai_id == MT8365_AFE_MEMIF_VUL2 && > + !ctrl_data->bypass_cm1) { > + regmap_update_bits(afe->regmap, > + AFE_CM1_CON0, > + CM_AFE_CM_ON, CM_AFE_CM_ON); > + } else if (dai_id == MT8365_AFE_MEMIF_TDM_IN && > + !ctrl_data->bypass_cm2) { > + regmap_update_bits(afe->regmap, > + AFE_CM2_CON0, > + CM_AFE_CM_ON, CM_AFE_CM_ON); > + } > + break; > + case SNDRV_PCM_TRIGGER_STOP: > + case SNDRV_PCM_TRIGGER_SUSPEND: > + /* disable channel merge */ > + if (dai_id == MT8365_AFE_MEMIF_VUL2 && > + !ctrl_data->bypass_cm1) { > + regmap_update_bits(afe->regmap, > + AFE_CM1_CON0, > + CM_AFE_CM_ON, ~CM_AFE_CM_ON); > + } else if (dai_id == MT8365_AFE_MEMIF_TDM_IN && > + !ctrl_data->bypass_cm2) { > + regmap_update_bits(afe->regmap, > + AFE_CM2_CON0, > + CM_AFE_CM_ON, ~CM_AFE_CM_ON); > + } > + break; > + default: > + break; > + } > + > + return mtk_afe_fe_trigger(substream, cmd, dai); > +} > + > +static int mt8365_afe_hw_gain1_startup(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + > + mt8365_afe_enable_main_clk(afe); > + return 0; > +} > + > +static void mt8365_afe_hw_gain1_shutdown(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + struct mt8365_be_dai_data *be = > + &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE]; > + > + const unsigned int stream = substream->stream; Why do you const local scalars? What is the point of this variable anyway? > + > + if (be->prepared[stream]) { > + regmap_update_bits(afe->regmap, AFE_GAIN1_CON0, > + AFE_GAIN1_CON0_EN_MASK, 0); > + be->prepared[stream] = false; > + } > + mt8365_afe_disable_main_clk(afe); > +} > + > +static int mt8365_afe_hw_gain1_prepare(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct snd_pcm_runtime * const runtime = substream->runtime; > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + struct mt8365_be_dai_data *be = > + &afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE]; > + > + const unsigned int rate = runtime->rate; > + const unsigned int stream = substream->stream; So this const is everywhere? How does it change it from code safety? No one expects to overwrite such variables anyway, so there is no increase in readability, either. > + int fs; > + unsigned int val1 = 0, val2 = 0; > + > + if (be->prepared[stream]) { > + dev_info(afe->dev, "%s prepared already\n", __func__); > + return 0; > + } > + > + fs = mt8365_afe_fs_timing(rate); > + regmap_update_bits(afe->regmap, AFE_GAIN1_CON0, > + AFE_GAIN1_CON0_MODE_MASK, (unsigned int)fs<<4); > + > + regmap_read(afe->regmap, AFE_GAIN1_CON1, &val1); > + regmap_read(afe->regmap, AFE_GAIN1_CUR, &val2); > + if ((val1 & AFE_GAIN1_CON1_MASK) != (val2 & AFE_GAIN1_CUR_MASK)) > + regmap_update_bits(afe->regmap, AFE_GAIN1_CUR, > + AFE_GAIN1_CUR_MASK, val1); > + > + regmap_update_bits(afe->regmap, AFE_GAIN1_CON0, > + AFE_GAIN1_CON0_EN_MASK, 1); > + be->prepared[stream] = true; > + > + return 0; > +} > + > +static const struct snd_pcm_hardware mt8365_hostless_hardware = { > + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | > + SNDRV_PCM_INFO_MMAP_VALID), > + .period_bytes_min = 256, > + .period_bytes_max = 4 * 48 * 1024, > + .periods_min = 2, > + .periods_max = 256, > + .buffer_bytes_max = 8 * 48 * 1024, > + .fifo_size = 0, > +}; > + > +/* dai ops */ > +static int mtk_dai_hostless_startup(struct snd_pcm_substream *substream, > + struct snd_soc_dai *dai) > +{ > + struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); > + struct snd_pcm_runtime *runtime = substream->runtime; > + int ret; > + > + snd_soc_set_runtime_hwparams(substream, &mt8365_hostless_hardware); > + > + ret = snd_pcm_hw_constraint_integer(runtime, > + SNDRV_PCM_HW_PARAM_PERIODS); > + if (ret < 0) > + dev_info(afe->dev, "snd_pcm_hw_constraint_integer failed\n"); > + return ret; > +} > + > +/* FE DAIs */ > +static const struct snd_soc_dai_ops mt8365_afe_fe_dai_ops = { > + .startup = mt8365_afe_fe_startup, > + .shutdown = mt8365_afe_fe_shutdown, > + .hw_params = mt8365_afe_fe_hw_params, > + .hw_free = mt8365_afe_fe_hw_free, > + .prepare = mt8365_afe_fe_prepare, > + .trigger = mt8365_afe_fe_trigger, > +}; > + > +static const struct snd_soc_dai_ops mt8365_dai_hostless_ops = { > + .startup = mtk_dai_hostless_startup, > +}; > + ... > +static int mt8365_afe_cm2_io_input_mux_get(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) > +{ > + ucontrol->value.integer.value[0] = mCM2Input; > + > + return 0; > +} > + > +static int mt8365_afe_cm2_io_input_mux_put(struct snd_kcontrol *kcontrol, > + struct snd_ctl_elem_value *ucontrol) Run checkpatch --strict > +{ > + struct snd_soc_dapm_context *dapm = > + snd_soc_dapm_kcontrol_dapm(kcontrol); > + struct snd_soc_component *comp = snd_soc_dapm_to_component(dapm); > + struct mtk_base_afe *afe = snd_soc_component_get_drvdata(comp); > + struct mt8365_afe_private *afe_priv = afe->platform_priv; > + int ret; > + > + mCM2Input = ucontrol->value.enumerated.item[0]; > + > + afe_priv->cm2_mux_input = mCM2Input; > + ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol); > + > + return ret; > +} > + ... > + > +static const struct regmap_config mt8365_afe_regmap_config = { > + .reg_bits = 32, > + .reg_stride = 4, > + .val_bits = 32, > + .max_register = MAX_REGISTER, > + .cache_type = REGCACHE_NONE, > +}; > + > +static irqreturn_t mt8365_afe_irq_handler(int irq, void *dev_id) > +{ > + struct mtk_base_afe *afe = dev_id; > + unsigned int reg_value; > + unsigned int mcu_irq_mask; > + int i, ret; > + > + ret = regmap_read(afe->regmap, AFE_IRQ_MCU_STATUS, &reg_value); > + if (ret) { > + dev_err(afe->dev, "%s irq status err\n", __func__); I can imagine happy user seeing flooded dmesg on each IRQ with these messages... > + reg_value = AFE_IRQ_STATUS_BITS; > + goto err_irq; > + } > + > + ret = regmap_read(afe->regmap, AFE_IRQ_MCU_EN, &mcu_irq_mask); > + if (ret) { > + dev_err(afe->dev, "%s irq mcu_en err\n", __func__); > + reg_value = AFE_IRQ_STATUS_BITS; > + goto err_irq; > + } > + > + /* only clr cpu irq */ > + reg_value &= mcu_irq_mask; > + > + for (i = 0; i < MT8365_AFE_MEMIF_NUM; i++) { > + struct mtk_base_afe_memif *memif = &afe->memif[i]; > + struct mtk_base_afe_irq *mcu_irq; > + > + if (memif->irq_usage < 0) > + continue; > + > + mcu_irq = &afe->irqs[memif->irq_usage]; > + > + if (!(reg_value & (1 << mcu_irq->irq_data->irq_clr_shift))) > + continue; > + > + snd_pcm_period_elapsed(memif->substream); > + } > + > +err_irq: > + /* clear irq */ > + regmap_write(afe->regmap, AFE_IRQ_MCU_CLR, > + reg_value & AFE_IRQ_STATUS_BITS); > + > + return IRQ_HANDLED; > +} > + > +static int __maybe_unused mt8365_afe_runtime_suspend(struct device *dev) > +{ > + return 0; > +} > + > +static int mt8365_afe_runtime_resume(struct device *dev) > +{ > + return 0; > +} > + > +static int __maybe_unused mt8365_afe_suspend(struct device *dev) > +{ > + struct mtk_base_afe *afe = dev_get_drvdata(dev); > + struct regmap *regmap = afe->regmap; > + int i; > + > + mt8365_afe_enable_main_clk(afe); > + > + if (!afe->reg_back_up) > + afe->reg_back_up = > + devm_kcalloc(dev, afe->reg_back_up_list_num, > + sizeof(unsigned int), GFP_KERNEL); > + > + for (i = 0; i < afe->reg_back_up_list_num; i++) > + regmap_read(regmap, afe->reg_back_up_list[i], > + &afe->reg_back_up[i]); > + > + mt8365_afe_disable_main_clk(afe); > + > + return 0; > +} > + > +static int __maybe_unused mt8365_afe_resume(struct device *dev) > +{ > + struct mtk_base_afe *afe = dev_get_drvdata(dev); > + struct regmap *regmap = afe->regmap; > + int i = 0; > + > + if (!afe->reg_back_up) { > + dev_dbg(dev, "%s no reg_backup\n", __func__); > + return 0; > + } > + > + mt8365_afe_enable_main_clk(afe); > + > + for (i = 0; i < afe->reg_back_up_list_num; i++) > + regmap_write(regmap, afe->reg_back_up_list[i], > + afe->reg_back_up[i]); > + > + mt8365_afe_disable_main_clk(afe); > + > + return 0; > +} > + > +static int __maybe_unused mt8365_afe_dev_runtime_suspend(struct device *dev) > +{ > + struct mtk_base_afe *afe = dev_get_drvdata(dev); > + > + dev_dbg(afe->dev, "%s suspend %d %d >>\n", __func__, > + pm_runtime_status_suspended(dev), afe->suspended); Drop silly trace-like prints. Tracing is for this. > + > + if (pm_runtime_status_suspended(dev) || afe->suspended) > + return 0; > + > + mt8365_afe_suspend(dev); > + > + afe->suspended = true; > + > + dev_dbg(afe->dev, "%s <<\n", __func__); Drop silly trace-like prints. Tracing is for this. > + > + return 0; > +} > + > +static int __maybe_unused mt8365_afe_dev_runtime_resume(struct device *dev) > +{ > + struct mtk_base_afe *afe = dev_get_drvdata(dev); > + > + dev_dbg(afe->dev, "%s suspend %d %d >>\n", __func__, > + pm_runtime_status_suspended(dev), afe->suspended); Drop silly trace-like prints. Tracing is for this. > + > + if (pm_runtime_status_suspended(dev) || !afe->suspended) > + return 0; > + > + mt8365_afe_resume(dev); > + > + afe->suspended = false; > + > + dev_dbg(afe->dev, "%s <<\n", __func__); Drop silly trace-like prints. Tracing is for this. > + > + return 0; > +} > + > +static int mt8365_afe_init_registers(struct mtk_base_afe *afe) > +{ > + size_t i; > + > + static struct { > + unsigned int reg; > + unsigned int mask; > + unsigned int val; > + } init_regs[] = { > + { AFE_CONN_24BIT, GENMASK(31, 0), GENMASK(31, 0) }, > + { AFE_CONN_24BIT_1, GENMASK(21, 0), GENMASK(21, 0) }, > + }; > + > + mt8365_afe_enable_main_clk(afe); > + > + for (i = 0; i < ARRAY_SIZE(init_regs); i++) > + regmap_update_bits(afe->regmap, init_regs[i].reg, > + init_regs[i].mask, init_regs[i].val); > + > + mt8365_afe_disable_main_clk(afe); > + > + return 0; > +} > + > +static int mt8365_afe_component_probe(struct snd_soc_component *component) > +{ > + return mtk_afe_add_sub_dai_control(component); > +} > + > +static const struct snd_soc_component_driver mt8365_afe_component = { > + .name = AFE_PCM_NAME, > + .probe = mt8365_afe_component_probe, > + .pointer = mtk_afe_pcm_pointer, > + .pcm_construct = mtk_afe_pcm_new, > +}; > + > +static const struct snd_soc_component_driver mt8365_afe_pcm_component = { > + .name = "mt8365-afe-pcm-dai", > +}; > + > +static int mt8365_dai_memif_register(struct mtk_base_afe *afe) > +{ > + struct mtk_base_afe_dai *dai; > + > + dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL); > + if (!dai) > + return -ENOMEM; > + > + list_add(&dai->list, &afe->sub_dais); > + > + dai->dai_drivers = mt8365_memif_dai_driver; > + dai->num_dai_drivers = ARRAY_SIZE(mt8365_memif_dai_driver); > + > + dai->dapm_widgets = mt8365_memif_widgets; > + dai->num_dapm_widgets = ARRAY_SIZE(mt8365_memif_widgets); > + dai->dapm_routes = mt8365_memif_routes; > + dai->num_dapm_routes = ARRAY_SIZE(mt8365_memif_routes); > + return 0; > +} > + > +typedef int (*dai_register_cb)(struct mtk_base_afe *); > +static const dai_register_cb dai_register_cbs[] = { > + mt8365_dai_pcm_register, > + mt8365_dai_i2s_register, > + mt8365_dai_adda_register, > + mt8365_dai_dmic_register, > + mt8365_dai_memif_register, > +}; > + > +static int mt8365_afe_pcm_dev_probe(struct platform_device *pdev) > +{ > + struct mtk_base_afe *afe; > + struct mt8365_afe_private *afe_priv; > + struct device *dev; > + int ret, i, sel_irq; > + unsigned int irq_id; > + struct resource *res; > + > + afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); > + if (!afe) > + return -ENOMEM; > + platform_set_drvdata(pdev, afe); > + > + afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv), > + GFP_KERNEL); > + if (!afe->platform_priv) > + return -ENOMEM; > + > + afe_priv = afe->platform_priv; > + afe->dev = &pdev->dev; > + dev = afe->dev; > + > + spin_lock_init(&afe_priv->afe_ctrl_lock); > + mutex_init(&afe_priv->afe_clk_mutex); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + afe->base_addr = devm_ioremap_resource(&pdev->dev, res); Why not using helper combining these two? > + if (IS_ERR(afe->base_addr)) > + return PTR_ERR(afe->base_addr); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); > + if (res) { > + afe_priv->afe_sram_vir_addr = > + devm_ioremap_resource(&pdev->dev, res); > + if (!IS_ERR(afe_priv->afe_sram_vir_addr)) { > + afe_priv->afe_sram_phy_addr = res->start; > + afe_priv->afe_sram_size = resource_size(res); > + } > + } > + > + /* initial audio related clock */ > + ret = mt8365_afe_init_audio_clk(afe); > + if (ret) { > + dev_err(afe->dev, "mt8365_afe_init_audio_clk fail\n"); return dev_err_probe() > + return ret; > + } > + > + afe->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "top_audio_sel", > + afe->base_addr, &mt8365_afe_regmap_config); > + if (IS_ERR(afe->regmap)) > + return PTR_ERR(afe->regmap); > + > + /* memif % irq initialize*/ > + afe->memif_size = MT8365_AFE_MEMIF_NUM; > + afe->memif = devm_kcalloc(afe->dev, afe->memif_size, > + sizeof(*afe->memif), GFP_KERNEL); > + if (!afe->memif) > + return -ENOMEM; > + > + afe->irqs_size = MT8365_AFE_IRQ_NUM; > + afe->irqs = devm_kcalloc(afe->dev, afe->irqs_size, > + sizeof(*afe->irqs), GFP_KERNEL); > + if (!afe->irqs) > + return -ENOMEM; > + > + for (i = 0; i < afe->irqs_size; i++) > + afe->irqs[i].irq_data = &irq_data[i]; > + > + irq_id = platform_get_irq(pdev, 0); > + if (!irq_id) { That does not look correct. 0 is valid. Look at help of this function. > + dev_err(afe->dev, "np %s no irq\n", afe->dev->of_node->name); return dev_err_probe() > + return -ENXIO; > + } > + ret = devm_request_irq(afe->dev, irq_id, mt8365_afe_irq_handler, > + 0, "Afe_ISR_Handle", (void *)afe); > + if (ret) { > + dev_err(afe->dev, "could not request_irq\n"); return dev_err_probe() > + return ret; > + } > + > + /* init sub_dais */ > + INIT_LIST_HEAD(&afe->sub_dais); > + > + for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) { > + ret = dai_register_cbs[i](afe); > + if (ret) { > + dev_warn(afe->dev, "dai register i %d fail, ret %d\n", > + i, ret); > + return ret; > + } > + } > + > + /* init dai_driver and component_driver */ > + ret = mtk_afe_combine_sub_dai(afe); > + if (ret) { > + dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n", > + ret); > + return ret; > + } > + > + for (i = 0; i < afe->memif_size; i++) { > + afe->memif[i].data = &memif_data[i]; > + sel_irq = memif_specified_irqs[i]; > + if (sel_irq >= 0) { > + afe->memif[i].irq_usage = sel_irq; > + afe->memif[i].const_irq = 1; > + afe->irqs[sel_irq].irq_occupyed = true; > + } else { > + afe->memif[i].irq_usage = -1; > + } > + } > + > + afe->mtk_afe_hardware = &mt8365_afe_hardware; > + afe->memif_fs = mt8365_memif_fs; > + afe->irq_fs = mt8365_irq_fs; > + > + pm_runtime_enable(&pdev->dev); > + > + pm_runtime_get_sync(&pdev->dev); > + afe->reg_back_up_list = mt8365_afe_backup_list; > + afe->reg_back_up_list_num = ARRAY_SIZE(mt8365_afe_backup_list); > + afe->runtime_resume = mt8365_afe_runtime_resume; > + afe->runtime_suspend = mt8365_afe_runtime_suspend; > + > + /* open afe pdn for dapm read/write audio register */ > + mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_AFE); > + > + /* Set 26m parent clk */ > + mt8365_afe_set_clk_parent(afe, > + afe_priv->clocks[MT8365_CLK_TOP_AUD_SEL], > + afe_priv->clocks[MT8365_CLK_CLK26M]); > + > + ret = devm_snd_soc_register_component(&pdev->dev, > + &mt8365_afe_component, NULL, 0); > + if (ret) { > + dev_warn(dev, "err_platform\n"); > + return ret; > + } > + > + ret = devm_snd_soc_register_component(&pdev->dev, > + &mt8365_afe_pcm_component, > + afe->dai_drivers, > + afe->num_dai_drivers); > + if (ret) { > + dev_warn(dev, "err_dai_component\n"); > + return ret; > + } > + > + mt8365_afe_init_registers(afe); > + > + dev_info(&pdev->dev, "MT8365 AFE driver initialized.\n"); Drop simple probe success messages everywhere. They are not needed and they don't bring useful information. Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH 10/18] ASoc: mediatek: mt8365: Add a specific soundcard for EVK

by Krzysztof Kozlowski

On 26/02/2024 15:01, amergnat(a)baylibre.com wrote: > From: Nicolas Belin <nbelin(a)baylibre.com> > > Add a specific soundcard for mt8365-evk. It supports audio jack > in/out, dmics, the amic and lineout. > > Signed-off-by: Nicolas Belin <nbelin(a)baylibre.com> > Signed-off-by: Alexandre Mergnat <amergnat(a)baylibre.com> ... > +static int mt8365_mt6357_dev_probe(struct platform_device *pdev) > +{ > + struct snd_soc_card *card = &mt8365_mt6357_card; > + struct device *dev = &pdev->dev; > + struct device_node *platform_node; > + struct mt8365_mt6357_priv *priv; > + int i, ret; > + > + card->dev = dev; > + ret = parse_dai_link_info(card); > + if (ret) > + goto err; > + > + platform_node = of_parse_phandle(dev->of_node, "mediatek,platform", 0); > + if (!platform_node) { > + dev_err(dev, "Property 'platform' missing or invalid\n"); > + return -EINVAL; > + } > + > + for (i = 0; i < card->num_links; i++) { > + if (mt8365_mt6357_dais[i].platforms->name) > + continue; > + mt8365_mt6357_dais[i].platforms->of_node = platform_node; > + } > + > + priv = devm_kzalloc(dev, sizeof(struct mt8365_mt6357_priv), > + GFP_KERNEL); > + if (!priv) { > + ret = -ENOMEM; > + dev_err(dev, "%s allocate card private data fail %d\n", > + __func__, ret); Don't print anything on memory allocations failures. Run coccinelle/coccicheck to detect such trivial issues. > + return ret; > + } > + > + snd_soc_card_set_drvdata(card, priv); > + > + mt8365_mt6357_gpio_probe(card); > + > + ret = devm_snd_soc_register_card(dev, card); > + if (ret) > + dev_err(dev, "%s snd_soc_register_card fail %d\n", > + __func__, ret); > +err: > + of_node_put(platform_node); > + clean_card_reference(card); > + return ret; > +} > + > +static const struct of_device_id mt8365_mt6357_dt_match[] = { > + { .compatible = "mediatek,mt8365-mt6357", }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, mt8365_mt6357_dt_match); > + > +static struct platform_driver mt8365_mt6357_driver = { > + .driver = { > + .name = "mt8365_mt6357", > + .of_match_table = mt8365_mt6357_dt_match, > + .pm = &snd_soc_pm_ops, > + }, > + .probe = mt8365_mt6357_dev_probe, > +}; > + > +module_platform_driver(mt8365_mt6357_driver); > + > +/* Module information */ > +MODULE_DESCRIPTION("MT8365 EVK SoC machine driver"); > +MODULE_AUTHOR("Nicolas Belin <nbelin(a)baylibre.com>"); > +MODULE_LICENSE("GPL"); > +MODULE_ALIAS("mt8365 mt6357 soc card"); This does not look like correct alias. Drop. > Best regards, Krzysztof

7 months, 3 weeks

Re: [PATCH] net: ethernet: ti: am65-cpsw: Add minimal XDP support

by Andrew Lunn

> +static struct sk_buff *am65_cpsw_alloc_skb(struct net_device *ndev, unsigned int len) > +{ > + struct page *page; > + struct sk_buff *skb; > + > + page = dev_alloc_pages(0); You are likely to get better performance if you use the page_pool. When FEC added XDP support, the first set of changes was to make use of page_pool. That improved the drivers performance. Then XDP was added on top. Maybe you can follow that pattern. Andrew

7 months, 3 weeks

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

Linaro-mm-sig February 2024