| Message ID | 1470685398-14568-3-git-send-email-hdegoede@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Aug 9, 2016 at 3:43 AM, Hans de Goede <hdegoede@redhat.com> wrote: > Almost all sun8i tablets use a gsl1680 touchscreen controller, so add > a node describing it to reference-design-tablet.dtsi. > > Almost all, but not all, so mark it as disabled by default (dts files > will also need to supply a firmware-name and resolution info). > > Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org>
On Mon, Aug 08, 2016 at 09:43:13PM +0200, Hans de Goede wrote: > Almost all sun8i tablets use a gsl1680 touchscreen controller, so add > a node describing it to reference-design-tablet.dtsi. > > Almost all, but not all, so mark it as disabled by default (dts files > will also need to supply a firmware-name and resolution info). > > Signed-off-by: Hans de Goede <hdegoede@redhat.com> Applied the first three patches, thanks! Maxime
diff --git a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi index 9d90361..f29897c 100644 --- a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi +++ b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi @@ -63,6 +63,27 @@ }; }; +&i2c0 { + /* + * The gsl1680 is rated at 400KHz and it will not work reliable at + * 100KHz, this has been confirmed on multiple different q8 tablets. + * The gsl1680 is the only device on this bus. + */ + clock-frequency = <400000>; + + gsl1680: touchscreen@40 { + compatible = "silead,gsl1680"; + reg = <0x40>; + interrupt-parent = <&pio>; + interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */ + pinctrl-names = "default"; + pinctrl-0 = <&ts_power_pin>; + power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */ + /* Most tablets use this touchscreen, but not all */ + status = "disabled"; + }; +}; + &mmc0 { pinctrl-names = "default"; pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>; @@ -88,6 +109,13 @@ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; }; + ts_power_pin: ts_power_pin@0 { + allwinner,pins = "PH1"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + usb0_id_detect_pin: usb0_id_detect_pin@0 { allwinner,pins = "PH8"; allwinner,function = "gpio_in";
Almost all sun8i tablets use a gsl1680 touchscreen controller, so add a node describing it to reference-design-tablet.dtsi. Almost all, but not all, so mark it as disabled by default (dts files will also need to supply a firmware-name and resolution info). Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- .../boot/dts/sun8i-reference-design-tablet.dtsi | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+)