forked from luck/tmp_suning_uos_patched
atmel_lcdfb: blank the backlight on remove
When removing atmel_lcdfb module, the backlight is unregistered but not blanked. (only for CONFIG_BACKLIGHT_ATMEL_LCDC case). This can result in the screen going full white depending on how the PWM is wired. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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@ -223,8 +223,14 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
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static void exit_backlight(struct atmel_lcdfb_info *sinfo)
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{
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if (sinfo->backlight)
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backlight_device_unregister(sinfo->backlight);
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if (!sinfo->backlight)
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return;
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if (sinfo->backlight->ops) {
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sinfo->backlight->props.power = FB_BLANK_POWERDOWN;
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sinfo->backlight->ops->update_status(sinfo->backlight);
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}
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backlight_device_unregister(sinfo->backlight);
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}
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#else
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