mfd: wcd9xxx: Get micbias cap mode config from device tree
Parse device tree to get micbias external capacitor mode to fill it into
platform data. External capacitor mode needs to be passed to codec drvier
so that codec driver can configure it.
Change-Id: I5a2137d7ede96a324ad43e48b8642bbf8ed2118e
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
diff --git a/Documentation/devicetree/bindings/sound/taiko_codec.txt b/Documentation/devicetree/bindings/sound/taiko_codec.txt
index 9f3719b..96e3a61 100644
--- a/Documentation/devicetree/bindings/sound/taiko_codec.txt
+++ b/Documentation/devicetree/bindings/sound/taiko_codec.txt
@@ -28,6 +28,10 @@
- qcom,cdc-micbias2-cfilt-sel = cfilt to use for micbias2 (should be from 1 to 3).
- qcom,cdc-micbias3-cfilt-sel = cfilt to use for micbias3 (should be from 1 to 3).
- qcom,cdc-micbias4-cfilt-sel = cfilt to use for micbias4 (should be from 1 to 3).
+ - qcom,cdc-micbias1-ext-cap: Boolean. Enable micbias 1 external capacitor mode.
+ - qcom,cdc-micbias2-ext-cap: Boolean. Enable micbias 2 external capacitor mode.
+ - qcom,cdc-micbias3-ext-cap: Boolean. Enable micbias 3 external capacitor mode.
+ - qcom,cdc-micbias4-ext-cap: Boolean. Enable micbias 4 external capacitor mode.
- qcom,cdc-slim-ifd-dev - namme of the codec slim interface device.
- qcom,cdc-slim-ifd-elemental-addr - codec slimbus slave interface device
@@ -76,6 +80,10 @@
qcom,cdc-micbias2-cfilt-sel = <0x1>;
qcom,cdc-micbias3-cfilt-sel = <0x2>;
qcom,cdc-micbias4-cfilt-sel = <0x2>;
+ qcom,cdc-micbias1-ext-cap;
+ qcom,cdc-micbias2-ext-cap;
+ qcom,cdc-micbias3-ext-cap;
+ qcom,cdc-micbias4-ext-cap;
qcom,cdc-slim-ifd = "taiko-slim-ifd";
qcom,cdc-slim-ifd-elemental-addr = [00 00 A0 00 17 02];
diff --git a/drivers/mfd/wcd9xxx-core.c b/drivers/mfd/wcd9xxx-core.c
index 62f1a93..a8e40f7 100644
--- a/drivers/mfd/wcd9xxx-core.c
+++ b/drivers/mfd/wcd9xxx-core.c
@@ -988,6 +988,20 @@
}
micbias->bias4_cfilt_sel = (u8)prop_val;
+ /* micbias external cap */
+ micbias->bias1_cap_mode =
+ (of_property_read_bool(dev->of_node, "qcom,cdc-micbias1-ext-cap") ?
+ MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
+ micbias->bias2_cap_mode =
+ (of_property_read_bool(dev->of_node, "qcom,cdc-micbias2-ext-cap") ?
+ MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
+ micbias->bias3_cap_mode =
+ (of_property_read_bool(dev->of_node, "qcom,cdc-micbias3-ext-cap") ?
+ MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
+ micbias->bias4_cap_mode =
+ (of_property_read_bool(dev->of_node, "qcom,cdc-micbias4-ext-cap") ?
+ MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
+
dev_dbg(dev, "ldoh_v %u cfilt1_mv %u cfilt2_mv %u cfilt3_mv %u",
(u32)micbias->ldoh_v, (u32)micbias->cfilt1_mv,
(u32)micbias->cfilt2_mv, (u32)micbias->cfilt3_mv);
@@ -998,6 +1012,11 @@
dev_dbg(dev, "bias3_cfilt_sel %u bias4_cfilt_sel %u\n",
(u32)micbias->bias3_cfilt_sel, (u32)micbias->bias4_cfilt_sel);
+ dev_dbg(dev, "bias1_ext_cap %d bias2_ext_cap %d\n",
+ micbias->bias1_cap_mode, micbias->bias2_cap_mode);
+ dev_dbg(dev, "bias3_ext_cap %d bias4_ext_cap %d\n",
+ micbias->bias3_cap_mode, micbias->bias4_cap_mode);
+
return 0;
}