diff options
| author | Tony Lindgren <tony@atomide.com> | 2015-11-12 20:58:21 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-11-12 20:58:21 +0300 |
| commit | ff6d03b9d9cad592320ce21e9b22befe56ebe6b6 (patch) | |
| tree | da02d83177a107f92c446dbf7a93bdc1bac96cdf /drivers/video/backlight/pm8941-wled.c | |
| parent | 7ef71b70e18a82bb363905f72672317d0e1e8810 (diff) | |
| parent | 469689a45f78505d864210b3a5d75404eb7f24ee (diff) | |
| download | linux-ff6d03b9d9cad592320ce21e9b22befe56ebe6b6.tar.xz | |
Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes
Diffstat (limited to 'drivers/video/backlight/pm8941-wled.c')
| -rw-r--r-- | drivers/video/backlight/pm8941-wled.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/video/backlight/pm8941-wled.c b/drivers/video/backlight/pm8941-wled.c index c704c3236034..0b6d21955d91 100644 --- a/drivers/video/backlight/pm8941-wled.c +++ b/drivers/video/backlight/pm8941-wled.c @@ -17,6 +17,9 @@ #include <linux/of_device.h> #include <linux/regmap.h> +/* From DT binding */ +#define PM8941_WLED_DEFAULT_BRIGHTNESS 2048 + #define PM8941_WLED_REG_VAL_BASE 0x40 #define PM8941_WLED_REG_VAL_MAX 0xFFF @@ -373,6 +376,7 @@ static int pm8941_wled_probe(struct platform_device *pdev) struct backlight_device *bl; struct pm8941_wled *wled; struct regmap *regmap; + u32 val; int rc; regmap = dev_get_regmap(pdev->dev.parent, NULL); @@ -395,16 +399,17 @@ static int pm8941_wled_probe(struct platform_device *pdev) if (rc) return rc; + val = PM8941_WLED_DEFAULT_BRIGHTNESS; + of_property_read_u32(pdev->dev.of_node, "default-brightness", &val); + memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; + props.brightness = val; props.max_brightness = PM8941_WLED_REG_VAL_MAX; bl = devm_backlight_device_register(&pdev->dev, wled->name, &pdev->dev, wled, &pm8941_wled_ops, &props); - if (IS_ERR(bl)) - return PTR_ERR(bl); - - return 0; + return PTR_ERR_OR_ZERO(bl); }; static const struct of_device_id pm8941_wled_match_table[] = { |