[PATCH 2/4] pwm_backlight: Validate dft_brightness in main probe function

From: Peter Ujfalusi
Date: Tue Jan 22 2013 - 08:41:33 EST


Move the dft_brightness validity check from the DT parsing function to the
main probe. In this way we can validate it in case we are booting with or
without DT.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
drivers/video/backlight/pwm_bl.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index f0d6854..2a81c24 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -135,12 +135,6 @@ static int pwm_backlight_parse_dt(struct device *dev,
if (ret < 0)
return ret;

- if (value >= data->max_brightness) {
- dev_warn(dev, "invalid default brightness level: %u, using %u\n",
- value, data->max_brightness - 1);
- value = data->max_brightness - 1;
- }
-
data->dft_brightness = value;
}

@@ -249,6 +243,12 @@ static int pwm_backlight_probe(struct platform_device *pdev)
goto err_alloc;
}

+ if (data->dft_brightness > data->max_brightness) {
+ dev_warn(&pdev->dev,
+ "invalid default brightness level: %u, using %u\n",
+ data->dft_brightness, data->max_brightness);
+ data->dft_brightness = data->max_brightness;
+ }
bl->props.brightness = data->dft_brightness;
backlight_update_status(bl);

--
1.8.1.1

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