| Message ID | 56F80171.40708@maciej.szmigiero.name (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, Mar 27, 2016 at 05:51:13PM +0200, Maciej S. Szmigiero wrote: > The official UDOO board kit has 7 and 15.6 inch touchscreen LCD panels > as options. > > This patch adds support for 7 inch panel only, but the 15.6 inch one > should be easy to add using the same regulator, backlight device and > LVDS channel. > > Since this panel is an option for UDOO board it is disabled by default > and can be enabled (for example) by the following U-Boot commands: > fdt set backlight status okay > fdt set panelchan status okay > fdt set panel7 status okay > fdt set touchscreenp7 status okay > > The LVDS channel is also disabled by default to avoid warning from its > driver. > > Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> > --- > arch/arm/boot/dts/imx6qdl-udoo.dtsi | 96 +++++++++++++++++++++++++++++++++++++ > 1 file changed, 96 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi > index d3e54e40a017..6a0a7ddb59ae 100644 > --- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi > +++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi > @@ -10,6 +10,13 @@ > */ > > / { > + aliases { > + backlight = &backlight; > + panelchan = &panelchan; > + panel7 = &panel7; > + touchscreenp7 = &touchscreenp7; > + }; > + > chosen { > stdout-path = &uart2; > }; > @@ -33,6 +40,14 @@ > startup-delay-us = <2>; /* USB2415 requires a POR of 1 us minimum */ > gpio = <&gpio7 12 0>; > }; > + > + reg_panel: regulator@1 { > + compatible = "regulator-fixed"; > + reg = <1>; > + regulator-name = "lcd_panel"; > + enable-active-high; > + gpio = <&gpio1 2 0>; > + }; > }; > > sound { > @@ -46,6 +61,34 @@ > mux-int-port = <1>; > mux-ext-port = <6>; > }; > + > + backlight: backlight { > + compatible = "gpio-backlight"; > + gpios = <&gpio1 4 0>; > + default-on; > + status = "disabled"; > + }; > + > + panel7: panel7 { > + /* > + * in reality it is a -20t (parallel) model, > + * but with LVDS bridge chip attached, > + * so it is equivalent to -19t model in drive > + * characteristics > + */ > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_panel>; > + compatible = "urt,umsh-8596md-19t"; We generally let 'compatible' be the first property. > + power-supply = <®_panel>; > + backlight = <&backlight>; > + status = "disabled"; > + > + port { > + panel_in: endpoint { > + remote-endpoint = <&lvds0_out>; > + }; > + }; > + }; > }; > > &fec { > @@ -151,6 +194,27 @@ > MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0 > >; > }; > + > + pinctrl_panel: panelgrp { Please sort pinctrl entries alphabetically. > + fsl,pins = < > + MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x70 > + MX6QDL_PAD_GPIO_4__GPIO1_IO04 0x70 > + >; > + }; > + > + pinctrl_i2c3: i2c3grp { > + fsl,pins = < > + MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001f8b1 > + MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001f8b1 > + >; > + }; > + > + pinctrl_touchscreenp7: touchscreenp7grp { > + fsl,pins = < > + MX6QDL_PAD_SD2_DAT0__GPIO1_IO15 0x70 > + MX6QDL_PAD_SD2_DAT2__GPIO1_IO13 0x1b0b0 > + >; > + }; > }; > }; > > @@ -189,3 +253,35 @@ > ac97-gpios = <&gpio4 19 0 &gpio4 18 0 &gpio2 30 0>; > status = "okay"; > }; > + > +&ldb { Please try to keep the node alphabetically in label name. Shawn > + status = "okay"; > + > + panelchan: lvds-channel@0 { > + port@4 { > + reg = <4>; > + > + lvds0_out: endpoint { > + remote-endpoint = <&panel_in>; > + }; > + }; > + }; > +}; > + > +&i2c3 { > + clock-frequency = <100000>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_i2c3>; > + status = "okay"; > + > + touchscreenp7: touchscreenp7@55 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_touchscreenp7>; > + compatible = "sitronix,st1232"; > + reg = <0x55>; > + interrupt-parent = <&gpio1>; > + interrupts = <13 8>; > + gpios = <&gpio1 15 0>; > + status = "disabled"; > + }; > +}; > >
diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi index d3e54e40a017..6a0a7ddb59ae 100644 --- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi +++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi @@ -10,6 +10,13 @@ */ / { + aliases { + backlight = &backlight; + panelchan = &panelchan; + panel7 = &panel7; + touchscreenp7 = &touchscreenp7; + }; + chosen { stdout-path = &uart2; }; @@ -33,6 +40,14 @@ startup-delay-us = <2>; /* USB2415 requires a POR of 1 us minimum */ gpio = <&gpio7 12 0>; }; + + reg_panel: regulator@1 { + compatible = "regulator-fixed"; + reg = <1>; + regulator-name = "lcd_panel"; + enable-active-high; + gpio = <&gpio1 2 0>; + }; }; sound { @@ -46,6 +61,34 @@ mux-int-port = <1>; mux-ext-port = <6>; }; + + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpio1 4 0>; + default-on; + status = "disabled"; + }; + + panel7: panel7 { + /* + * in reality it is a -20t (parallel) model, + * but with LVDS bridge chip attached, + * so it is equivalent to -19t model in drive + * characteristics + */ + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_panel>; + compatible = "urt,umsh-8596md-19t"; + power-supply = <®_panel>; + backlight = <&backlight>; + status = "disabled"; + + port { + panel_in: endpoint { + remote-endpoint = <&lvds0_out>; + }; + }; + }; }; &fec { @@ -151,6 +194,27 @@ MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0 >; }; + + pinctrl_panel: panelgrp { + fsl,pins = < + MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x70 + MX6QDL_PAD_GPIO_4__GPIO1_IO04 0x70 + >; + }; + + pinctrl_i2c3: i2c3grp { + fsl,pins = < + MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001f8b1 + MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001f8b1 + >; + }; + + pinctrl_touchscreenp7: touchscreenp7grp { + fsl,pins = < + MX6QDL_PAD_SD2_DAT0__GPIO1_IO15 0x70 + MX6QDL_PAD_SD2_DAT2__GPIO1_IO13 0x1b0b0 + >; + }; }; }; @@ -189,3 +253,35 @@ ac97-gpios = <&gpio4 19 0 &gpio4 18 0 &gpio2 30 0>; status = "okay"; }; + +&ldb { + status = "okay"; + + panelchan: lvds-channel@0 { + port@4 { + reg = <4>; + + lvds0_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; +}; + +&i2c3 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3>; + status = "okay"; + + touchscreenp7: touchscreenp7@55 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_touchscreenp7>; + compatible = "sitronix,st1232"; + reg = <0x55>; + interrupt-parent = <&gpio1>; + interrupts = <13 8>; + gpios = <&gpio1 15 0>; + status = "disabled"; + }; +};
The official UDOO board kit has 7 and 15.6 inch touchscreen LCD panels as options. This patch adds support for 7 inch panel only, but the 15.6 inch one should be easy to add using the same regulator, backlight device and LVDS channel. Since this panel is an option for UDOO board it is disabled by default and can be enabled (for example) by the following U-Boot commands: fdt set backlight status okay fdt set panelchan status okay fdt set panel7 status okay fdt set touchscreenp7 status okay The LVDS channel is also disabled by default to avoid warning from its driver. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> --- arch/arm/boot/dts/imx6qdl-udoo.dtsi | 96 +++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+)