ARM: dts: omap3-gta04: Add display support

This patch add support for lcd display on gta04 board. Display control
is connected to spi (used spi bitbang driver).

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap3-gta04.dts b/arch/arm/boot/dts/omap3-gta04.dts
index f8ad125fa46f..021311f7964b 100644
--- a/arch/arm/boot/dts/omap3-gta04.dts
+++ b/arch/arm/boot/dts/omap3-gta04.dts
@@ -44,6 +44,36 @@
                 ti,mcbsp = <&mcbsp2>;
                 ti,codec = <&twl_audio>;
         };
+
+        spi_lcd {
+                compatible = "spi-gpio";
+                #address-cells = <0x1>;
+                #size-cells = <0x0>;
+                pinctrl-names = "default";
+                pinctrl-0 = <&spi_gpio_pins>;
+
+                gpio-sck = <&gpio1 12 0>;
+                gpio-miso = <&gpio1 18 0>;
+                gpio-mosi = <&gpio1 20 0>;
+                cs-gpios = <&gpio1 19 0>;
+                num-chipselects = <1>;
+
+                /* lcd panel */
+                lcd: td028ttec1@0 {
+                        compatible = "toppoly,td028ttec1";
+                        reg = <0>;
+                        spi-max-frequency = <100000>;
+                        spi-cpol;
+                        spi-cpha;
+
+                        label = "lcd";
+                        port {
+                                lcd_in: endpoint {
+                                        remote-endpoint = <&dpi_out>;
+                                };
+                        };
+                };
+        };
 };
 
 &omap3_pmx_core {
@@ -78,6 +108,47 @@
                         0x11e (PIN_INPUT_PULLUP | MUX_MODE0)    /* sdmmc1_dat3.sdmmc1_dat3 */
                 >;
         };
+
+        dss_dpi_pins: pinmux_dss_dpi_pins {
+               pinctrl-single,pins = <
+                       0x0a4 (PIN_OUTPUT | MUX_MODE0)   /* dss_pclk.dss_pclk */
+                       0x0a6 (PIN_OUTPUT | MUX_MODE0)   /* dss_hsync.dss_hsync */
+                       0x0a8 (PIN_OUTPUT | MUX_MODE0)   /* dss_vsync.dss_vsync */
+                       0x0aa (PIN_OUTPUT | MUX_MODE0)   /* dss_acbias.dss_acbias */
+                       0x0ac (PIN_OUTPUT | MUX_MODE0)   /* dss_data0.dss_data0 */
+                       0x0ae (PIN_OUTPUT | MUX_MODE0)   /* dss_data1.dss_data1 */
+                       0x0b0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data2.dss_data2 */
+                       0x0b2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data3.dss_data3 */
+                       0x0b4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data4.dss_data4 */
+                       0x0b6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data5.dss_data5 */
+                       0x0b8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data6.dss_data6 */
+                       0x0ba (PIN_OUTPUT | MUX_MODE0)   /* dss_data7.dss_data7 */
+                       0x0bc (PIN_OUTPUT | MUX_MODE0)   /* dss_data8.dss_data8 */
+                       0x0be (PIN_OUTPUT | MUX_MODE0)   /* dss_data9.dss_data9 */
+                       0x0c0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data10.dss_data10 */
+                       0x0c2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data11.dss_data11 */
+                       0x0c4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data12.dss_data12 */
+                       0x0c6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data13.dss_data13 */
+                       0x0c8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data14.dss_data14 */
+                       0x0ca (PIN_OUTPUT | MUX_MODE0)   /* dss_data15.dss_data15 */
+                       0x0cc (PIN_OUTPUT | MUX_MODE0)   /* dss_data16.dss_data16 */
+                       0x0ce (PIN_OUTPUT | MUX_MODE0)   /* dss_data17.dss_data17 */
+                       0x0d0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data18.dss_data18 */
+                       0x0d2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data19.dss_data19 */
+                       0x0d4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data20.dss_data20 */
+                       0x0d6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data21.dss_data21 */
+                       0x0d8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data22.dss_data22 */
+                       0x0da (PIN_OUTPUT | MUX_MODE0)   /* dss_data23.dss_data23 */
+               >;
+       };
+
+        spi_gpio_pins: spi_gpio_pinmux {
+                pinctrl-single,pins = <0x5a8 (PIN_OUTPUT | MUX_MODE4) /* clk */
+                        0x5b6 (PIN_OUTPUT | MUX_MODE4) /* cs */
+                        0x5b8 (PIN_OUTPUT | MUX_MODE4) /* tx */
+                        0x5b4 (PIN_INPUT | MUX_MODE4) /* rx */
+                >;
+        };
 };
 
 &i2c1 {
@@ -219,3 +290,22 @@
         regulator-min-microvolt = <2800000>;
         regulator-max-microvolt = <3150000>;
 };
+
+/* Needed to power the DPI pins */
+&vpll2 {
+        regulator-always-on;
+};
+
+&dss {
+        pinctrl-names = "default";
+        pinctrl-0 = < &dss_dpi_pins >;
+
+        status = "okay";
+
+        port {
+                dpi_out: endpoint {
+                        remote-endpoint = <&lcd_in>;
+                        data-lines = <24>;
+                };
+        };
+};