| Message ID | 20241023061326.3871877-2-quic_mohs@quicinc.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add static channel mapping between soundwire master and slave | expand |
On Wed, Oct 23, 2024 at 11:43:23AM +0530, Mohammad Rafi Shaik wrote: > Add static channel mapping between master and slave rx/tx ports for > Qualcomm wcd937x soundwire codec. > > Currently, the channel mask for each soundwire port is hardcoded in the > wcd937x-sdw driver, and the same channel mask value is configured in the > soundwire master. > > The Qualcomm boards like the QCM6490-IDP require different channel mask settings > for the soundwire master and slave ports. Different than what? Other wcd937x? Which are these? > > With the introduction of the following channel mapping properties, it is now possible > to configure the master channel mask directly from the device tree. > > The qcom,tx-channel-mapping property specifies the static channel mapping between the slave > and master tx ports in the order of slave port channels which is adc1, adc2, adc3, adc4, > dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. I still don't get what is the channel here. > > The qcom,rx-channel-mapping property specifies static channel mapping between the slave > and master rx ports in the order of slave port channels which is hph_l, hph_r, clsh, > comp_l, comp_r, lo, dsd_r, dsd_l. And this description copies binding :/. Please wrap commit message according to Linux coding style / submission process (neither too early nor over the limit): https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597 > > Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com> > --- > .../bindings/sound/qcom,wcd937x-sdw.yaml | 36 +++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml > index d3cf8f59cb23..a6bc9b391db0 100644 > --- a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml > +++ b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml > @@ -58,6 +58,38 @@ properties: > items: > enum: [1, 2, 3, 4, 5] > > + qcom,tx-channel-mapping: > + description: | > + Specifies static channel mapping between slave and master tx port > + channels. > + In the order of slave port channels which is adc1, adc2, adc3, adc4, > + dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. > + ch_mask1 ==> bit mask value 1 > + ch_mask2 ==> bit mask value 2 > + ch_mask3 ==> bit mask value 4 > + ch_mask4 ==> bit mask value 8 > + $ref: /schemas/types.yaml#/definitions/uint8-array > + minItems: 8 > + maxItems: 13 Why size is variable? This device has fixed amount of slave ports, I think. > + items: > + enum: [1, 2, 4, 8] What is the point of using bits if you cannot actually create a bit mask out of it? Why this cannot be 7? > + > + qcom,rx-channel-mapping: > + description: | > + Specifies static channels mapping between slave and master rx port > + channels. > + In the order of slave port channels, which is > + hph_l, hph_r, clsh, comp_l, comp_r, lo, dsd_r, dsd_l. > + ch_mask1 ==> bit mask value 1 > + ch_mask2 ==> bit mask value 2 > + ch_mask3 ==> bit mask value 4 > + ch_mask4 ==> bit mask value 8 and the value is what exactly? Index is channel, but what does "ch_mask4 ==> bit mask value 8" mean? I don't understand this at all. > + $ref: /schemas/types.yaml#/definitions/uint8-array > + minItems: 8 > + maxItems: 8 > + items: > + enum: [1, 2, 4, 8] > + > required: > - compatible > - reg > @@ -74,6 +106,8 @@ examples: > compatible = "sdw20217010a00"; > reg = <0 4>; > qcom,rx-port-mapping = <1 2 3 4 5>; > + qcom,rx-channel-mapping = /bits/ 8 <0x01 0x02 0x01 0x01 0x02 > + 0x01 0x01 0x02>; > }; > }; > > @@ -85,6 +119,8 @@ examples: > compatible = "sdw20217010a00"; > reg = <0 3>; > qcom,tx-port-mapping = <2 2 3 4>; > + qcom,tx-channel-mapping = /bits/ 8 <0x01 0x02 0x01 0x01 0x02 0x04 > + 0x04 0x08 0x01 0x02 0x04 0x8>; Keep it consistent, e.g. everywhere without leading 0... actually not sure why this is hex, either. > }; > }; > > -- > 2.25.1 >
On 23/10/2024 09:52, Krzysztof Kozlowski wrote: > On Wed, Oct 23, 2024 at 11:43:23AM +0530, Mohammad Rafi Shaik wrote: >> Add static channel mapping between master and slave rx/tx ports for >> Qualcomm wcd937x soundwire codec. >> >> Currently, the channel mask for each soundwire port is hardcoded in the >> wcd937x-sdw driver, and the same channel mask value is configured in the >> soundwire master. >> >> The Qualcomm boards like the QCM6490-IDP require different channel mask settings >> for the soundwire master and slave ports. > > Different than what? Other wcd937x? Which are these? > >> >> With the introduction of the following channel mapping properties, it is now possible >> to configure the master channel mask directly from the device tree. >> >> The qcom,tx-channel-mapping property specifies the static channel mapping between the slave >> and master tx ports in the order of slave port channels which is adc1, adc2, adc3, adc4, >> dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. > > I still don't get what is the channel here. > >> >> The qcom,rx-channel-mapping property specifies static channel mapping between the slave >> and master rx ports in the order of slave port channels which is hph_l, hph_r, clsh, >> comp_l, comp_r, lo, dsd_r, dsd_l. > > And this description copies binding :/. > > Please wrap commit message according to Linux coding style / submission > process (neither too early nor over the limit): > https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597 > >> >> Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com> >> --- >> .../bindings/sound/qcom,wcd937x-sdw.yaml | 36 +++++++++++++++++++ >> 1 file changed, 36 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml >> index d3cf8f59cb23..a6bc9b391db0 100644 >> --- a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml >> +++ b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml >> @@ -58,6 +58,38 @@ properties: >> items: >> enum: [1, 2, 3, 4, 5] >> >> + qcom,tx-channel-mapping: >> + description: | >> + Specifies static channel mapping between slave and master tx port >> + channels. >> + In the order of slave port channels which is adc1, adc2, adc3, adc4, >> + dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. >> + ch_mask1 ==> bit mask value 1 >> + ch_mask2 ==> bit mask value 2 >> + ch_mask3 ==> bit mask value 4 >> + ch_mask4 ==> bit mask value 8 >> + $ref: /schemas/types.yaml#/definitions/uint8-array >> + minItems: 8 >> + maxItems: 13 > > Why size is variable? This device has fixed amount of slave ports, I > think. > >> + items: >> + enum: [1, 2, 4, 8] > > What is the point of using bits if you cannot actually create a bit mask > out of it? Why this cannot be 7? > >> + >> + qcom,rx-channel-mapping: >> + description: | >> + Specifies static channels mapping between slave and master rx port >> + channels. >> + In the order of slave port channels, which is >> + hph_l, hph_r, clsh, comp_l, comp_r, lo, dsd_r, dsd_l. >> + ch_mask1 ==> bit mask value 1 >> + ch_mask2 ==> bit mask value 2 >> + ch_mask3 ==> bit mask value 4 >> + ch_mask4 ==> bit mask value 8 > > and the value is what exactly? Index is channel, but what does "ch_mask4 ==> bit > mask value 8" mean? I don't understand this at all. Ah, and previous feedback was to use strings, no? Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml index d3cf8f59cb23..a6bc9b391db0 100644 --- a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml @@ -58,6 +58,38 @@ properties: items: enum: [1, 2, 3, 4, 5] + qcom,tx-channel-mapping: + description: | + Specifies static channel mapping between slave and master tx port + channels. + In the order of slave port channels which is adc1, adc2, adc3, adc4, + dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. + ch_mask1 ==> bit mask value 1 + ch_mask2 ==> bit mask value 2 + ch_mask3 ==> bit mask value 4 + ch_mask4 ==> bit mask value 8 + $ref: /schemas/types.yaml#/definitions/uint8-array + minItems: 8 + maxItems: 13 + items: + enum: [1, 2, 4, 8] + + qcom,rx-channel-mapping: + description: | + Specifies static channels mapping between slave and master rx port + channels. + In the order of slave port channels, which is + hph_l, hph_r, clsh, comp_l, comp_r, lo, dsd_r, dsd_l. + ch_mask1 ==> bit mask value 1 + ch_mask2 ==> bit mask value 2 + ch_mask3 ==> bit mask value 4 + ch_mask4 ==> bit mask value 8 + $ref: /schemas/types.yaml#/definitions/uint8-array + minItems: 8 + maxItems: 8 + items: + enum: [1, 2, 4, 8] + required: - compatible - reg @@ -74,6 +106,8 @@ examples: compatible = "sdw20217010a00"; reg = <0 4>; qcom,rx-port-mapping = <1 2 3 4 5>; + qcom,rx-channel-mapping = /bits/ 8 <0x01 0x02 0x01 0x01 0x02 + 0x01 0x01 0x02>; }; }; @@ -85,6 +119,8 @@ examples: compatible = "sdw20217010a00"; reg = <0 3>; qcom,tx-port-mapping = <2 2 3 4>; + qcom,tx-channel-mapping = /bits/ 8 <0x01 0x02 0x01 0x01 0x02 0x04 + 0x04 0x08 0x01 0x02 0x04 0x8>; }; };
Add static channel mapping between master and slave rx/tx ports for Qualcomm wcd937x soundwire codec. Currently, the channel mask for each soundwire port is hardcoded in the wcd937x-sdw driver, and the same channel mask value is configured in the soundwire master. The Qualcomm boards like the QCM6490-IDP require different channel mask settings for the soundwire master and slave ports. With the introduction of the following channel mapping properties, it is now possible to configure the master channel mask directly from the device tree. The qcom,tx-channel-mapping property specifies the static channel mapping between the slave and master tx ports in the order of slave port channels which is adc1, adc2, adc3, adc4, dmic0, dmic1, mbhc, dmic2, dmic3, dmci4, dmic5, dmic6, dmic7. The qcom,rx-channel-mapping property specifies static channel mapping between the slave and master rx ports in the order of slave port channels which is hph_l, hph_r, clsh, comp_l, comp_r, lo, dsd_r, dsd_l. Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com> --- .../bindings/sound/qcom,wcd937x-sdw.yaml | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+)