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pwm_backlight: Validate dft_brightness in main probe function

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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@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
This commit is contained in:
Peter Ujfalusi 2013-01-22 14:39:54 +01:00 • committed by Thierry Reding
parent 928c44775b
commit 83cfd72669
1 changed files with 7 additions and 6 deletions
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13
drivers/video/backlight/pwm_bl.c
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@ -134,12 +134,6 @@ static int pwm_backlight_parse_dt(struct device *dev,
if (ret < 0) if (ret < 0)
return ret; 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; data->dft_brightness = value;
data->max_brightness--; data->max_brightness--;
} }
@ -248,6 +242,13 @@ static int pwm_backlight_probe(struct platform_device *pdev)
goto err_alloc; 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; bl->props.brightness = data->dft_brightness;
backlight_update_status(bl); backlight_update_status(bl);