On 12/30/2016 10:20 AM, Linus Walleij wrote: > On Wed, Dec 21, 2016 at 4:27 AM, Vladimir Zapolskiy <vz@xxxxxxxxx> wrote: > >> The change adds handling of "enable-gpios" property of panel-dpi device >> node used with an ARM CLCD controller, note that the property already has >> a description in display/panel/panel-dpi.txt documentation and it founds >> practical usage while describing some panel devices connected to other >> types of display controllers. >> >> Signed-off-by: Vladimir Zapolskiy <vz@xxxxxxxxx> > > So as you may have seen I already handle a RESET GPIO in the > Nomadik TPG110 panel subddriver in > drivers/video/fbdev/amba-clcd-nomadik.c > > So is this all your panel needs? I need "enable-gpios" property to define a GPIO, which literally enables (powers up) a panel as a separate attached PCB. To some extend "enable-gpios" property can be replaced by "power" property with a phandle to a GPIO voltage regulator. You may look at drivers/gpu/drm/panel/panel-simple.c, both "enable-gpios" and "power" properties are defined for simple panels. > > I guess it is OK for simple panels. > -- With best wishes, Vladimir -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
