Add Device Tree support for the TSL2563 driver
and document the binding.
Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
---
.../devicetree/bindings/iio/light/tsl2563.txt | 19 +++++++++++++++++++
drivers/iio/light/tsl2563.c | 4 ++++
2 files changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/light/tsl2563.txt
diff --git a/Documentation/devicetree/bindings/iio/light/tsl2563.txt b/Documentation/devicetree/bindings/iio/light/tsl2563.txt
new file mode 100644
index 0000000..b52cf4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/tsl2563.txt
@@ -0,0 +1,19 @@
+* TAOS TSL2563 ambient light sensor
+
+Required properties:
+
+ - compatible : should be "taos,tsl2563"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+
+ - cover-comp-gain : integer used as multiplier for gain
+ compensation (default = 1)
+
+Example:
+
+tsl2563@29 {
+ compatible = "taos,tsl2563";
+ reg = <0x29>;
+ cover-comp-gain = <16>;
+};
diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index ebb962c..bd30b1d 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -699,6 +699,7 @@ static int tsl2563_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
struct tsl2563_chip *chip;
struct tsl2563_platform_data *pdata = client->dev.platform_data;
+ struct device_node *np = client->dev.of_node;
int err = 0;
u8 id = 0;
@@ -735,6 +736,9 @@ static int tsl2563_probe(struct i2c_client *client,
if (pdata)
chip->cover_comp_gain = pdata->cover_comp_gain;
+ else if (np)
+ of_property_read_u32_index(np, "cover-comp-gain", 0,
+ &chip->cover_comp_gain);
else
chip->cover_comp_gain = 1;
--
1.8.4.rc3
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