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iio:light:tsl2563: Add DT support

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Add Device Tree support for the TSL2563 driver,
document the binding and add AMS-TAOS Inc. to the
list of vendor prefixes.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Sebastian Reichel 2013-10-25 10:10:00 +01:00 committed by Jonathan Cameron
parent cc26ad455f
commit 8175bff5b4
3 changed files with 24 additions and 0 deletions
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19
Documentation/devicetree/bindings/iio/light/tsl2563.txt Normal file
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@ -0,0 +1,19 @@
* AMS TAOS TSL2563 ambient light sensor
Required properties:
- compatible : should be "amstaos,tsl2563"
- reg : the I2C address of the sensor
Optional properties:
- amstaos,cover-comp-gain : integer used as multiplier for gain
compensation (default = 1)
Example:
tsl2563@29 {
compatible = "amstaos,tsl2563";
reg = <0x29>;
amstaos,cover-comp-gain = <16>;
};

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -9,6 +9,7 @@ aeroflexgaisler Aeroflex Gaisler AB
ak Asahi Kasei Corp. ak Asahi Kasei Corp.
altr Altera Corp. altr Altera Corp.
amcc Applied Micro Circuits Corporation (APM, formally AMCC) amcc Applied Micro Circuits Corporation (APM, formally AMCC)
amstaos AMS-Taos Inc.
apm Applied Micro Circuits Corporation (APM) apm Applied Micro Circuits Corporation (APM)
arm ARM Ltd. arm ARM Ltd.
atmel Atmel Corporation atmel Atmel Corporation

4
drivers/iio/light/tsl2563.c
View File

@ -714,6 +714,7 @@ static int tsl2563_probe(struct i2c_client *client,
struct iio_dev *indio_dev; struct iio_dev *indio_dev;
struct tsl2563_chip *chip; struct tsl2563_chip *chip;
struct tsl2563_platform_data *pdata = client->dev.platform_data; struct tsl2563_platform_data *pdata = client->dev.platform_data;
struct device_node *np = client->dev.of_node;
int err = 0; int err = 0;
u8 id = 0; u8 id = 0;
@ -750,6 +751,9 @@ static int tsl2563_probe(struct i2c_client *client,
if (pdata) if (pdata)
chip->cover_comp_gain = pdata->cover_comp_gain; chip->cover_comp_gain = pdata->cover_comp_gain;
else if (np)
of_property_read_u32(np, "amstaos,cover-comp-gain",
&chip->cover_comp_gain);
else else
chip->cover_comp_gain = 1; chip->cover_comp_gain = 1;