On Fri, Jan 13, 2017 at 12:35:48PM +0200, Jyri Sarha wrote: > From: Tomi Valkeinen <tomi.valkeinen@xxxxxx> > > SSD1306 needs VBAT when it is wired in charge pump configuration. This > patch adds support to the driver to enable VBAT regulator at init time. > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> > Reviewed-by: Roger Quadros <rogerq@xxxxxx> > Signed-off-by: Jyri Sarha <jsarha@xxxxxx> > --- > .../devicetree/bindings/display/ssd1307fb.txt | 1 + > drivers/video/fbdev/ssd1307fb.c | 20 +++++++++++++++++++- > 2 files changed, 20 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/display/ssd1307fb.txt b/Documentation/devicetree/bindings/display/ssd1307fb.txt > index 6617df6..209d931 100644 > --- a/Documentation/devicetree/bindings/display/ssd1307fb.txt > +++ b/Documentation/devicetree/bindings/display/ssd1307fb.txt > @@ -16,6 +16,7 @@ Required properties: > Optional properties: > - reset-gpios: The GPIO used to reset the OLED display, if available. See > Documentation/devicetree/bindings/gpio/gpio.txt for details. > + - vbat-supply: The supply for VBAT According to the datasheet, SSD1307 has 2 supplies: Vdd and Vcc I don't see any mention of a charge pump, so that must be an external component. > - solomon,segment-no-remap: Display needs normal (non-inverted) data column > to segment mapping > - solomon,com-seq: Display uses sequential COM pin configuration -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
