ARM: dts: Add LCD panel sharp ls037v7dw01 support for omap3-evm and ldp

Looks like quite a few omap3 boards have sharp ls037v7dw01 that's
configured as various panel dpi entries for whatever legacy reasons.
For device tree based support, let's just configure these properly for
panel ls037v7dw01 instead of panel dpi.

This patch creates a common file for panel ls037v7dw01, and makes
boards ldp and omap3-evm to use it.

The ls037v7dw01 also seems to be coupled with an ad7846 touchscreen
controller for the omaps, so let's add a basic configuration for
the touchscreen also using the default values.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index 4df68ad3736a52eba3d6953f7c8341599c6e7ebb..a181e30daaef5ec956f5fe2dd5cf4c0dfa84a827 100644 (file)
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -26,7 +26,44 @@
        };
 };
 
+&dss {
+       pinctrl-names = "default";
+       pinctrl-0 = <
+               &dss_dpi_pins1
+               &dss_dpi_pins2
+       >;
+};
+
 &omap3_pmx_core {
+       dss_dpi_pins1: pinmux_dss_dpi_pins2 {
+               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(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_MODE3)   /* dss_data18.dss_data0 */
+                       OMAP3_CORE1_IOPAD(0x2102, PIN_OUTPUT | MUX_MODE3)   /* dss_data19.dss_data1 */
+                       OMAP3_CORE1_IOPAD(0x2104, PIN_OUTPUT | MUX_MODE3)   /* dss_data20.dss_data2 */
+                       OMAP3_CORE1_IOPAD(0x2106, PIN_OUTPUT | MUX_MODE3)   /* dss_data21.dss_data3 */
+                       OMAP3_CORE1_IOPAD(0x2108, PIN_OUTPUT | MUX_MODE3)   /* dss_data22.dss_data4 */
+                       OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE3)   /* dss_data23.dss_data5 */
+               >;
+       };
+
        mmc1_pins: pinmux_mmc1_pins {
                pinctrl-single,pins = <
                        0x114 (PIN_OUTPUT_PULLUP | MUX_MODE0)   /* sdmmc1_clk.sdmmc1_clk */
@@ -75,6 +112,19 @@
        };
 };
 
+&omap3_pmx_wkup {
+       dss_dpi_pins2: pinmux_dss_dpi_pins1 {
+               pinctrl-single,pins = <
+                       0x0a (PIN_OUTPUT | MUX_MODE3)   /* sys_boot0.dss_data18 */
+                       0x0c (PIN_OUTPUT | MUX_MODE3)   /* sys_boot1.dss_data19 */
+                       0x10 (PIN_OUTPUT | MUX_MODE3)   /* sys_boot3.dss_data20 */
+                       0x12 (PIN_OUTPUT | MUX_MODE3)   /* sys_boot4.dss_data21 */
+                       0x14 (PIN_OUTPUT | MUX_MODE3)   /* sys_boot5.dss_data22 */
+                       0x16 (PIN_OUTPUT | MUX_MODE3)   /* sys_boot6.dss_data23 */
+               >;
+       };
+};
+
 &mmc1 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc1_pins>;

diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index 3007e79c9cd6bc2114da07b6c5cf49b29b5b771b..8ae8f007c8adcc4ff6c5658d76d6b9080e4bb029 100644 (file)
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -44,6 +44,11 @@
 
 #include "twl4030.dtsi"
 #include "twl4030_omap3.dtsi"
+#include "omap3-panel-sharp-ls037v7dw01.dtsi"
+
+&backlight0 {
+       gpios = <&twl_gpio 18 GPIO_ACTIVE_LOW>;
+};
 
 &i2c2 {
        clock-frequency = <400000>;
@@ -61,6 +66,27 @@
        };
 };
 
+&lcd_3v3 {
+       gpio = <&gpio5 25 GPIO_ACTIVE_LOW>;     /* gpio153 */
+       enable-active-low;
+};
+
+&lcd0 {
+       enable-gpios = <&gpio5 24 GPIO_ACTIVE_HIGH>;    /* gpio152, lcd INI */
+       reset-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;     /* gpio155, lcd RESB */
+       mode-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH        /* gpio154, lcd MO */
+                     &gpio1 2 GPIO_ACTIVE_HIGH         /* gpio2, lcd LR */
+                     &gpio1 3 GPIO_ACTIVE_HIGH>;       /* gpio3, lcd UD */
+};
+
+&mcspi1 {
+       tsc2046@0 {
+               interrupt-parent = <&gpio6>;
+               interrupts = <15 0>;            /* gpio175 */
+               pendown-gpio = <&gpio6 15 0>;
+       };
+};
+
 &mmc1 {
        vmmc-supply = <&vmmc1>;
        vmmc_aux-supply = <&vsim>;

diff --git a/arch/arm/boot/dts/omap3-ldp.dts b/arch/arm/boot/dts/omap3-ldp.dts
index 0abe986a4ecc19a7606690df50ec560e200b1f31..9c751e420f3759e29c3eeb75c48d3372dffcfbaf 100644 (file)
--- a/arch/arm/boot/dts/omap3-ldp.dts
+++ b/arch/arm/boot/dts/omap3-ldp.dts
@@ -164,6 +164,11 @@
 
 #include "twl4030.dtsi"
 #include "twl4030_omap3.dtsi"
+#include "omap3-panel-sharp-ls037v7dw01.dtsi"
+
+&backlight0 {
+       gpios = <&twl_gpio 7 GPIO_ACTIVE_HIGH>;
+};
 
 &i2c2 {
        clock-frequency = <400000>;
@@ -173,6 +178,25 @@
        clock-frequency = <400000>;
 };
 
+/* tps61130rsa enabled by twl4030 regen */
+&lcd_3v3 {
+       regulator-always-on;
+};
+
+&lcd0 {
+       enable-gpios = <&twl_gpio 15 GPIO_ACTIVE_HIGH>; /* lcd INI */
+       reset-gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;     /* gpio55, lcd RESB */
+       mode-gpios = <&gpio2 24 GPIO_ACTIVE_HIGH>;      /* gpio56, lcd MO */
+};
+
+&mcspi1 {
+       tsc2046@0 {
+               interrupt-parent = <&gpio2>;
+               interrupts = <22 0>;            /* gpio54 */
+               pendown-gpio = <&gpio2 22 0>;
+       };
+};
+
 &mmc1 {
        /* See 35xx errata 2.1.1.128 in SPRZ278F */
        compatible = "ti,omap3-pre-es3-hsmmc";
@@ -247,8 +271,3 @@
        /* Needed for ads7846 */
         regulator-name = "vcc";
 };
-
-&vpll2 {
-       /* Needed for DSS */
-       regulator-name = "vdds_dsi";
-};

diff --git a/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi b/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi
new file mode 100644 (file)
index 0000000..f4b1a61
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi
@@ -0,0 +1,71 @@
+/*
+ * Common file for omap dpi panels with QVGA and reset pins
+ *
+ * Note that the board specifc DTS file needs to specify
+ * at minimum the GPIO enable-gpios for display, and
+ * gpios for gpio-backlight.
+ */
+
+/ {
+       aliases {
+               display0 = &lcd0;
+       };
+
+       backlight0: backlight {
+               compatible = "gpio-backlight";
+               default-on;
+       };
+
+       /* 3.3V GPIO controlled regulator for LCD_ENVDD */
+       lcd_3v3: regulator-lcd-3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "lcd_3v3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               startup-delay-us = <70000>;
+       };
+
+       lcd0: display {
+               compatible = "sharp,ls037v7dw01";
+               label = "lcd";
+               power-supply = <&lcd_3v3>;
+
+               port {
+                       lcd_in: endpoint {
+                               remote-endpoint = <&dpi_out>;
+                       };
+               };
+       };
+};
+
+/* Needed to power the DPI pins */
+&vpll2 {
+       regulator-always-on;
+};
+
+&dss {
+       status = "ok";
+       port {
+               dpi_out: endpoint {
+                       remote-endpoint = <&lcd_in>;
+                       data-lines = <18>;
+               };
+       };
+};
+
+&mcspi1 {
+       tsc2046@0 {
+               reg = <0>;                      /* CS0 */
+               compatible = "ti,tsc2046";
+               spi-max-frequency = <1000000>;
+               vcc-supply = <&lcd_3v3>;
+               ti,x-min = /bits/ 16 <0>;
+               ti,x-max = /bits/ 16 <8000>;
+               ti,y-min = /bits/ 16 <0>;
+               ti,y-max = /bits/ 16 <4800>;
+               ti,x-plate-ohms = /bits/ 16 <40>;
+               ti,pressure-max = /bits/ 16 <255>;
+               ti,swap-xy;
+               linux,wakeup;
+       };
+};