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Commit d7aa64c3 authored by Michael Welling's avatar Michael Welling Committed by Tomi Valkeinen
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drivers: video: fbdev: atmel_lcdfb.c: Add ability to inverted backlight PWM. 



The code has a variable to change the polarity of the PWM backlight control but
it was not being initialized. This patch adds a devicetree entry to set the
variable if required.

Signed-off-by: default avatarMichael Welling <mwelling@ieee.org>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent d10715be

Documentation/devicetree/bindings/video/atmel,lcdc.txt

+1 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ Required properties (as per of_videomode_helper): 


Optional properties (as per of_videomode_helper):

 - atmel,lcdcon-backlight: enable backlight

 - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity

 - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"

 - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)

drivers/video/fbdev/atmel_lcdfb.c

+2 −1
Original line number Diff line number Diff line
@@ -1095,6 +1095,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo) 
	pdata->lcd_wiring_mode = ret;



	pdata->lcdcon_is_backlight = of_property_read_bool(display_np, "atmel,lcdcon-backlight");

	pdata->lcdcon_pol_negative = of_property_read_bool(display_np, "atmel,lcdcon-backlight-inverted");



	timings = of_get_display_timings(display_np);

	if (!timings) {