From 7542a04b1515f0f878b267beb233c4ef067243fb Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2013 04:52:59 -0700 Subject: leds: lp55xx: add support for Device Tree bindings This patch allows the lp5521 driver to be successfully probed and initialised when Device Tree support is enabled. Based on a patch by Gabriel Fernandez, rewritten in accordance with review feedback. Cc: Gabriel Fernandez Signed-off-by: Linus Walleij Acked-by: Milo Kim Signed-off-by: Bryan Wu --- drivers/leds/leds-lp5521.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'drivers/leds/leds-lp5521.c') diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 19752c928aa2..d461e2664b09 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "leds-lp55xx-common.h" @@ -416,12 +417,20 @@ static int lp5521_probe(struct i2c_client *client, int ret; struct lp55xx_chip *chip; struct lp55xx_led *led; - struct lp55xx_platform_data *pdata = client->dev.platform_data; - - if (!pdata) { - dev_err(&client->dev, "no platform data\n"); - return -EINVAL; + struct lp55xx_platform_data *pdata; + struct device_node *np = client->dev.of_node; + + if (!client->dev.platform_data) { + if (np) { + ret = lp55xx_of_populate_pdata(&client->dev, np); + if (ret < 0) + return ret; + } else { + dev_err(&client->dev, "no platform data\n"); + return -EINVAL; + } } + pdata = client->dev.platform_data; chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) @@ -481,6 +490,7 @@ static int lp5521_remove(struct i2c_client *client) static const struct i2c_device_id lp5521_id[] = { { "lp5521", 0 }, /* Three channel chip */ + { "national,lp5521", 0 }, /* OF compatible */ { } }; MODULE_DEVICE_TABLE(i2c, lp5521_id); -- cgit v1.2.3