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| author | Linus Walleij <linus.walleij@linaro.org> | 2013-04-23 04:52:59 -0700 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2013-06-20 16:21:31 -0700 |
| commit | 7542a04b1515f0f878b267beb233c4ef067243fb (patch) | |
| tree | f5516bc2113773391893cbbd2b309feb45829f18 /drivers/leds/leds-lp5521.c | |
| parent | 7d132055814ef17a6c7b69f342244c410a5e000f (diff) | |
| download | linux-7542a04b1515f0f878b267beb233c4ef067243fb.tar.gz linux-7542a04b1515f0f878b267beb233c4ef067243fb.tar.bz2 linux-7542a04b1515f0f878b267beb233c4ef067243fb.zip | |
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 <gabriel.fernandez@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds/leds-lp5521.c')
| -rw-r--r-- | drivers/leds/leds-lp5521.c | 20 |
1 files changed, 15 insertions, 5 deletions
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 <linux/mutex.h> #include <linux/platform_data/leds-lp55xx.h> #include <linux/slab.h> +#include <linux/of.h> #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); |