Re: [PATCH v2] mfd: arizona: Add DT options for max_channels_clocked and PDM speaker config

From: Lee Jones
Date: Wed Aug 31 2016 - 08:14:04 EST


Requires a DT Ack.

On Wed, 31 Aug 2016, Richard Fitzgerald wrote:

> This patch adds DT settings for the max_channels_clocked, spk_fmt and
> spk_mute pdata.
>
> Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/mfd/arizona.txt | 11 ++++++++
> drivers/mfd/arizona-core.c | 31 +++++++++++++++++++++++
> 2 files changed, 42 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt
> index a6e2ea41..6eaf006 100644
> --- a/Documentation/devicetree/bindings/mfd/arizona.txt
> +++ b/Documentation/devicetree/bindings/mfd/arizona.txt
> @@ -85,6 +85,17 @@ Optional properties:
> present, the number of values should be less than or equal to the
> number of inputs, unspecified inputs will use the chip default.
>
> + - wlf,max-channels-clocked : The maximum number of channels to be clocked on
> + each AIF, useful for I2S systems with multiple data lines being mastered.
> + Specify one cell for each AIF, specify zero for AIFs that should be handled
> + normally.
> +
> + - wlf,spk-fmt : PDM speaker data format, must contain 2 cells (OUT5 and OUT6).
> + See the datasheet for values.
> +
> + - wlf,spk-mute : PDM speaker mute setting, must contain 2 cells (OUT5 and OUT6).
> + See the datasheet for values.
> +
> - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if
> they are being externally supplied. As covered in
> Documentation/devicetree/bindings/regulator/regulator.txt
> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
> index b95ff2d..36a9633 100644
> --- a/drivers/mfd/arizona-core.c
> +++ b/drivers/mfd/arizona-core.c
> @@ -816,6 +816,37 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
> count++;
> }
>
> + count = 0;
> + of_property_for_each_u32(arizona->dev->of_node,
> + "wlf,max-channels-clocked",
> + prop, cur, val) {
> + if (count == ARRAY_SIZE(pdata->max_channels_clocked))
> + break;
> +
> + pdata->max_channels_clocked[count] = val;
> + count++;
> + }
> +
> + count = 0;
> + of_property_for_each_u32(arizona->dev->of_node, "wlf,spk-fmt", prop,
> + cur, val) {
> + if (count == ARRAY_SIZE(pdata->spk_fmt))
> + break;
> +
> + pdata->spk_fmt[count] = val;
> + count++;
> + }
> +
> + count = 0;
> + of_property_for_each_u32(arizona->dev->of_node, "wlf,spk-mute", prop,
> + cur, val) {
> + if (count == ARRAY_SIZE(pdata->spk_mute))
> + break;
> +
> + pdata->spk_mute[count] = val;
> + count++;
> + }
> +
> return 0;
> }
>

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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