ARM: dts: overo: Add support for 3.5'' LCD output

Alto35 expansion board has a ZIF connector for a 3.5'' LCD.
Add a common include file for this configuration, and use it
on Alto35.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap3-overo-alto35-common.dtsi b/arch/arm/boot/dts/omap3-overo-alto35-common.dtsi
index 19d64864a10949b26a0ee6fb87061151533d0d00..7aae8fb82c1f33b66ba80566c6a1c5d0345f8a8a 100644 (file)
--- a/arch/arm/boot/dts/omap3-overo-alto35-common.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-alto35-common.dtsi
@@ -11,6 +11,7 @@
  */
 
 #include "omap3-overo-common-peripherals.dtsi"
+#include "omap3-overo-common-lcd35.dtsi"
 
 #include <dt-bindings/input/input.h>
 

diff --git a/arch/arm/boot/dts/omap3-overo-common-lcd35.dtsi b/arch/arm/boot/dts/omap3-overo-common-lcd35.dtsi
new file mode 100644 (file)
index 0000000..233c69e
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-overo-common-lcd35.dtsi
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2014 Florian Vaussard, EPFL Mobots group
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * 4.3'' LCD panel output for some Gumstix Overo boards (Gallop43, Chestnut43)
+ */
+
+&omap3_pmx_core {
+       dss_dpi_pins: pinmux_dss_dpi_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0)       /* dss_pclk.dss_pclk */
+                       OMAP3_CORE1_IOPAD(0x20d6, PIN_OUTPUT | MUX_MODE0)       /* dss_hsync.dss_hsync */
+                       OMAP3_CORE1_IOPAD(0x20d8, PIN_OUTPUT | MUX_MODE0)       /* dss_vsync.dss_vsync */
+                       OMAP3_CORE1_IOPAD(0x20da, PIN_OUTPUT | MUX_MODE0)       /* dss_acbias.dss_acbias */
+                       OMAP3_CORE1_IOPAD(0x20dc, PIN_OUTPUT | MUX_MODE0)       /* dss_data0.dss_data0 */
+                       OMAP3_CORE1_IOPAD(0x20de, PIN_OUTPUT | MUX_MODE0)       /* dss_data1.dss_data1 */
+                       OMAP3_CORE1_IOPAD(0x20e0, PIN_OUTPUT | MUX_MODE0)       /* dss_data2.dss_data2 */
+                       OMAP3_CORE1_IOPAD(0x20e2, PIN_OUTPUT | MUX_MODE0)       /* dss_data3.dss_data3 */
+                       OMAP3_CORE1_IOPAD(0x20e4, PIN_OUTPUT | MUX_MODE0)       /* dss_data4.dss_data4 */
+                       OMAP3_CORE1_IOPAD(0x20e6, PIN_OUTPUT | MUX_MODE0)       /* dss_data5.dss_data5 */
+                       OMAP3_CORE1_IOPAD(0x20e8, PIN_OUTPUT | MUX_MODE0)       /* dss_data6.dss_data6 */
+                       OMAP3_CORE1_IOPAD(0x20ea, PIN_OUTPUT | MUX_MODE0)       /* dss_data7.dss_data7 */
+                       OMAP3_CORE1_IOPAD(0x20ec, PIN_OUTPUT | MUX_MODE0)       /* dss_data8.dss_data8 */
+                       OMAP3_CORE1_IOPAD(0x20ee, PIN_OUTPUT | MUX_MODE0)       /* dss_data9.dss_data9 */
+                       OMAP3_CORE1_IOPAD(0x20f0, PIN_OUTPUT | MUX_MODE0)       /* dss_data10.dss_data10 */
+                       OMAP3_CORE1_IOPAD(0x20f2, PIN_OUTPUT | MUX_MODE0)       /* dss_data11.dss_data11 */
+                       OMAP3_CORE1_IOPAD(0x20f4, PIN_OUTPUT | MUX_MODE0)       /* dss_data12.dss_data12 */
+                       OMAP3_CORE1_IOPAD(0x20f6, PIN_OUTPUT | MUX_MODE0)       /* dss_data13.dss_data13 */
+                       OMAP3_CORE1_IOPAD(0x20f8, PIN_OUTPUT | MUX_MODE0)       /* dss_data14.dss_data14 */
+                       OMAP3_CORE1_IOPAD(0x20fa, PIN_OUTPUT | MUX_MODE0)       /* dss_data15.dss_data15 */
+                       OMAP3_CORE1_IOPAD(0x20fc, PIN_OUTPUT | MUX_MODE0)       /* dss_data16.dss_data16 */
+                       OMAP3_CORE1_IOPAD(0x20fe, PIN_OUTPUT | MUX_MODE0)       /* dss_data17.dss_data17 */
+                       OMAP3_CORE1_IOPAD(0x2100, PIN_OUTPUT | MUX_MODE0)       /* dss_data18.dss_data18 */
+                       OMAP3_CORE1_IOPAD(0x2102, PIN_OUTPUT | MUX_MODE0)       /* dss_data19.dss_data19 */
+                       OMAP3_CORE1_IOPAD(0x2104, PIN_OUTPUT | MUX_MODE0)       /* dss_data20.dss_data20 */
+                       OMAP3_CORE1_IOPAD(0x2106, PIN_OUTPUT | MUX_MODE0)       /* dss_data21.dss_data21 */
+                       OMAP3_CORE1_IOPAD(0x2108, PIN_OUTPUT | MUX_MODE0)       /* dss_data22.dss_data22 */
+                       OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE0)       /* dss_data23.dss_data23 */
+               >;
+       };
+
+       lb035_pins: pinmux_lb035_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x2174, PIN_OUTPUT | MUX_MODE4)       /* uart2_cts.gpio_144 */
+               >;
+       };
+
+       backlight_pins: pinmux_backlight_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT | MUX_MODE4)       /* uart2_rts.gpio_145 */
+               >;
+       };
+
+       mcspi1_pins: pinmux_mcspi1_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x21c8, PIN_INPUT | MUX_MODE0)        /* mcspi1_clk.mcspi1_clk */
+                       OMAP3_CORE1_IOPAD(0x21ca, PIN_INPUT | MUX_MODE0)        /* mcspi1_simo.mcspi1_simo */
+                       OMAP3_CORE1_IOPAD(0x21cc, PIN_INPUT | MUX_MODE0)        /* mcspi1_somi.mcspi1_somi */
+                       OMAP3_CORE1_IOPAD(0x21ce, PIN_INPUT | MUX_MODE0)        /* mcspi1_cs0.mcspi1_cs0 */
+               >;
+       };
+
+       ads7846_pins: pinmux_ads7846_pins {
+               pinctrl-single,pins = <
+                       OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT_PULLDOWN | MUX_MODE4)       /* csi2_dx1.gpio_114 */
+               >;
+       };
+};
+
+/* Needed to power the DPI pins */
+&vpll2 {
+       regulator-always-on;
+};
+
+&dss {
+       status = "ok";
+
+       pinctrl-names = "default";
+       pinctrl-0 = <&dss_dpi_pins>;
+
+       port {
+               dpi_out: endpoint {
+                       remote-endpoint = <&lcd_in>;
+                       data-lines = <24>;
+               };
+       };
+};
+
+/ {
+       aliases {
+               display0 = &lcd0;
+       };
+
+       ads7846reg: ads7846-reg {
+               compatible = "regulator-fixed";
+               regulator-name = "ads7846-reg";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
+       backlight {
+               compatible = "gpio-backlight";
+               
+               pinctrl-names = "default";
+               pinctrl-0 = <&backlight_pins>;
+               gpios = <&gpio5 17 GPIO_ACTIVE_HIGH>;           /* gpio_145 */
+
+               default-on;
+       };
+};
+
+&mcspi1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mcspi1_pins>;
+
+       lcd0: display@0 {
+               compatible = "lgphilips,lb035q02";
+               label = "lcd";
+
+               reg = <1>;                                      /* CS1 */
+               spi-max-frequency = <10000000>;
+               spi-cpol;
+               spi-cpha;
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&lb035_pins>;
+               enable-gpios = <&gpio5 16 GPIO_ACTIVE_HIGH>;    /* gpio_144 */
+
+               port {
+                       lcd_in: endpoint {
+                               remote-endpoint = <&dpi_out>;
+                       };
+               };
+       };
+
+       /* touch controller */
+       ads7846@0 {
+               pinctrl-names = "default";
+               pinctrl-0 = <&ads7846_pins>;
+
+               compatible = "ti,ads7846";
+               vcc-supply = <&ads7846reg>;
+
+               reg = <0>;                              /* CS0 */
+               spi-max-frequency = <1500000>;
+
+               interrupt-parent = <&gpio4>;
+               interrupts = <18 0>;                    /* gpio_114 */
+               pendown-gpio = <&gpio4 18 0>;
+
+               ti,x-min = /bits/ 16 <0x0>;
+               ti,x-max = /bits/ 16 <0x0fff>;
+               ti,y-min = /bits/ 16 <0x0>;
+               ti,y-max = /bits/ 16 <0x0fff>;
+               ti,x-plate-ohms = /bits/ 16 <180>;
+               ti,pressure-max = /bits/ 16 <255>;
+
+               linux,wakeup;
+       };
+};