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mfd: arizona: Add DT options for max_channels_clocked and PDM speaker config

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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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Richard Fitzgerald 2016-09-13 10:05:44 +01:00 committed by Lee Jones
parent 0133d32346
commit f4c0526225
2 changed files with 48 additions and 0 deletions
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18
Documentation/devicetree/bindings/mfd/arizona.txt
View File

@ -85,6 +85,24 @@ 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 to be configured, specify zero for AIFs that
should be handled normally.
If present, number of cells must be less than or equal to the number of
AIFs. If less than the number of AIFs, for cells that have not been
specified the corresponding AIFs will be treated as default setting.
- wlf,spk-fmt : PDM speaker data format, must contain 2 cells (OUT5 and OUT6).
See the datasheet for values.
The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997,
wm8998, wm1814)
- wlf,spk-mute : PDM speaker mute setting, must contain 2 cells (OUT5 and OUT6).
See the datasheet for values.
The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997,
wm8998, wm1814)
- 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

30
drivers/mfd/arizona-core.c
View File

@ -828,6 +828,7 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
struct property *prop;
const __be32 *cur;
u32 val;
u32 pdm_val[ARIZONA_MAX_PDM_SPK];
int ret, i;
int count = 0;
@ -884,6 +885,35 @@ 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++;
}
ret = of_property_read_u32_array(arizona->dev->of_node,
"wlf,spk-fmt",
pdm_val,
ARRAY_SIZE(pdm_val));
if (ret >= 0)
for (count = 0; count < ARRAY_SIZE(pdata->spk_fmt); ++count)
pdata->spk_fmt[count] = pdm_val[count];
ret = of_property_read_u32_array(arizona->dev->of_node,
"wlf,spk-mute",
pdm_val,
ARRAY_SIZE(pdm_val));
if (ret >= 0)
for (count = 0; count < ARRAY_SIZE(pdata->spk_mute); ++count)
pdata->spk_mute[count] = pdm_val[count];
return 0;
}