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Subject[PATCH] mfd: arizona: Add DT options for max_channels_clocked and PDM speaker config
Date
This patch adds DT settings for the max_channels_clocked, spk_fmt and
spk_mute pdata.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
---
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;
}

--
1.9.1
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