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Re: [PATCH v3 1/2] ASoC: msm8916: Add codec Device Tree bindings.

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  Re: [PATCH v3 1/2] ASoC: msm8916: Add codec Device Tree bindings. Kenneth Westfield <kwestfie@codeaurora.org> - 2016-06-14 18:20 +0200
    Re: [PATCH v3 1/2] ASoC: msm8916: Add codec Device Tree bindings. Srinivas Kandagatla <srinivas.kandagatla@linaro.org> - 2016-06-15 11:20 +0200

#1422056 — Re: [PATCH v3 1/2] ASoC: msm8916: Add codec Device Tree bindings.

On Fri, Jun 10, 2016 at 11:18:44AM -0700, Srinivas Kandagatla wrote:
> diff --git a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
> b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
> new file mode 100644
> index 0000000..0559c1f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
> @@ -0,0 +1,103 @@
> +msm8916 audio CODEC audio CODEC
> +
> +Codec IP is divided into two parts, first analog which is integrated in
> pmic pm8916
> +and secondly digital part which is integrated into application processor.
> Codec register
> +controls are also split across pmic an lpass. Analog part is controlled
> via spmi bus to pmic.

Cleaning up the description:

msm8916 audio CODEC

Codec IP is divided into two parts:
  * analog, which is integrated into pmic pm8916
  * digital, which is integrated into LPASS on the SOC
Codec registers are also split across pmic and LPASS.
Analog codec is controlled via spmi bus to pmic.

> +## Bindings for codec core on pmic:
> +
> +Required properties
> + - compatible = "qcom,msm8916-pmic-wcd-codec";

OK.  Looking at this again, I think its better just to drop the pmic.

> +  "spk_cnp_int" - Speaker click and pop interrupt
> +  "spk_clip_int" - Speaker clip interrupt
> +  "spk_ocp_int" - Speaker over current protect interrupt.
> +  "ins_rem_det1" - jack insert removal detect interrupt 1.
> +  "but_rel_det" - button release interrupt
> +  "but_press_det" - button press event
> +  "ins_rem_det" - jack insert removal detect interrup
> +  "mbhc_int"	- multi button headset interrupt.
> +  "ear_ocp_int" - Earphone over current protect interrupt.
> +  "hphr_ocp_int" - Headphone R over current protect interrupt.
> +  "hphl_ocp_det" - Headphone L over current protect interrupt
> +  "ear_cnp_int" - earphone cnp interrupt.
> +  "hphr_cnp_int" - hphr click and pop interrupt.
> +  "hphl_cnp_int" - hphl click and pop interrupt

Please use labels that more closely match the HW spec:
  "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_int"
  "cdc_ear_cnp_int"
  "cdc_hphr_cnp_int"
  "cdc_hphl_cnp_int"

-- 
Kenneth Westfield
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, 
a Linux Foundation Collaborative Project

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#1422811

Thanks for review comments,
On 14/06/16 17:12, Kenneth Westfield wrote:
> On Fri, Jun 10, 2016 at 11:18:44AM -0700, Srinivas Kandagatla wrote:
>> diff --git a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
>> b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
>> new file mode 100644
>> index 0000000..0559c1f
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd.txt
>> @@ -0,0 +1,103 @@
>> +msm8916 audio CODEC audio CODEC
>> +
>> +Codec IP is divided into two parts, first analog which is integrated in
>> pmic pm8916
>> +and secondly digital part which is integrated into application processor.
>> Codec register
>> +controls are also split across pmic an lpass. Analog part is controlled
>> via spmi bus to pmic.
>
> Cleaning up the description:
>
> msm8916 audio CODEC
>
> Codec IP is divided into two parts:
>    * analog, which is integrated into pmic pm8916
>    * digital, which is integrated into LPASS on the SOC
> Codec registers are also split across pmic and LPASS.
> Analog codec is controlled via spmi bus to pmic.
>
>> +## Bindings for codec core on pmic:
>> +
>> +Required properties
>> + - compatible = "qcom,msm8916-pmic-wcd-codec";
>
> OK.  Looking at this again, I think its better just to drop the pmic.
>
Yep..
>> +  "spk_cnp_int" - Speaker click and pop interrupt
>> +  "spk_clip_int" - Speaker clip interrupt
>> +  "spk_ocp_int" - Speaker over current protect interrupt.
>> +  "ins_rem_det1" - jack insert removal detect interrupt 1.
>> +  "but_rel_det" - button release interrupt
>> +  "but_press_det" - button press event
>> +  "ins_rem_det" - jack insert removal detect interrup
>> +  "mbhc_int"	- multi button headset interrupt.
>> +  "ear_ocp_int" - Earphone over current protect interrupt.
>> +  "hphr_ocp_int" - Headphone R over current protect interrupt.
>> +  "hphl_ocp_det" - Headphone L over current protect interrupt
>> +  "ear_cnp_int" - earphone cnp interrupt.
>> +  "hphr_cnp_int" - hphr click and pop interrupt.
>> +  "hphl_cnp_int" - hphl click and pop interrupt
>
> Please use labels that more closely match the HW spec:
>    "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_int"
>    "cdc_ear_cnp_int"
>    "cdc_hphr_cnp_int"
>    "cdc_hphl_cnp_int"
>
Yes, we can do that to match the specs.

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