From b675d1ecced015f180d5d43056bed94cda87d80f Mon Sep 17 00:00:00 2001 From: Darren Etheridge Date: Tue, 1 Jul 2014 16:00:20 -0500 Subject: [PATCH] ARM: dts: am335x-evmsk: enable display and lcd panel support Add the necessary nodes to enable the LCD controller and the LCD panel that is attached to the Texas Instruments AM335x EVMSK platform. Also setup the necessary pin mux within the DT file to drive the LCD connector and add the correct pinmux settings for the lcd pins to be configured to when the SoC goes into sleep state for the minimum power consumption. For the sleep mode LCD pin settings, MUX_MODE7 is chosen as this corresponds to switching the pins into input GPIO's with an internal pulldown. Which has been determined to offer the lowest power solution vs leaving the pins configured in LCD mode. Signed-off-by: Darren Etheridge Acked-by: Wolfram Sang Tested-by: Felipe Balbi Acked-by: Tomi Valkeinen Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/am335x-evmsk.dts | 105 +++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index ab9a34ce524c..59766e2c2980 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -149,12 +149,113 @@ sound { "Headphone Jack", "HPLOUT", "Headphone Jack", "HPROUT"; }; + + panel { + compatible = "ti,tilcdc,panel"; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&lcd_pins_default>; + pinctrl-1 = <&lcd_pins_sleep>; + status = "okay"; + panel-info { + ac-bias = <255>; + ac-bias-intrpt = <0>; + dma-burst-sz = <16>; + bpp = <32>; + fdd = <0x80>; + sync-edge = <0>; + sync-ctrl = <1>; + raster-order = <0>; + fifo-th = <0>; + }; + display-timings { + 480x272 { + hactive = <480>; + vactive = <272>; + hback-porch = <43>; + hfront-porch = <8>; + hsync-len = <4>; + vback-porch = <12>; + vfront-porch = <4>; + vsync-len = <10>; + clock-frequency = <9000000>; + hsync-active = <0>; + vsync-active = <0>; + }; + }; + }; }; &am33xx_pinmux { pinctrl-names = "default"; pinctrl-0 = <&gpio_keys_s0 &clkout2_pin>; + lcd_pins_default: lcd_pins_default { + pinctrl-single,pins = < + 0x20 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad8.lcd_data23 */ + 0x24 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad9.lcd_data22 */ + 0x28 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad10.lcd_data21 */ + 0x2c (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad11.lcd_data20 */ + 0x30 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad12.lcd_data19 */ + 0x34 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad13.lcd_data18 */ + 0x38 (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad14.lcd_data17 */ + 0x3c (PIN_OUTPUT | MUX_MODE1) /* gpmc_ad15.lcd_data16 */ + 0xa0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data0.lcd_data0 */ + 0xa4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data1.lcd_data1 */ + 0xa8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data2.lcd_data2 */ + 0xac (PIN_OUTPUT | MUX_MODE0) /* lcd_data3.lcd_data3 */ + 0xb0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data4.lcd_data4 */ + 0xb4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data5.lcd_data5 */ + 0xb8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data6.lcd_data6 */ + 0xbc (PIN_OUTPUT | MUX_MODE0) /* lcd_data7.lcd_data7 */ + 0xc0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data8.lcd_data8 */ + 0xc4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data9.lcd_data9 */ + 0xc8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data10.lcd_data10 */ + 0xcc (PIN_OUTPUT | MUX_MODE0) /* lcd_data11.lcd_data11 */ + 0xd0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data12.lcd_data12 */ + 0xd4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data13.lcd_data13 */ + 0xd8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data14.lcd_data14 */ + 0xdc (PIN_OUTPUT | MUX_MODE0) /* lcd_data15.lcd_data15 */ + 0xe0 (PIN_OUTPUT | MUX_MODE0) /* lcd_vsync.lcd_vsync */ + 0xe4 (PIN_OUTPUT | MUX_MODE0) /* lcd_hsync.lcd_hsync */ + 0xe8 (PIN_OUTPUT | MUX_MODE0) /* lcd_pclk.lcd_pclk */ + 0xec (PIN_OUTPUT | MUX_MODE0) /* lcd_ac_bias_en.lcd_ac_bias_en */ + >; + }; + + lcd_pins_sleep: lcd_pins_sleep { + pinctrl-single,pins = < + 0x20 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad8.lcd_data23 */ + 0x24 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad9.lcd_data22 */ + 0x28 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad10.lcd_data21 */ + 0x2c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad11.lcd_data20 */ + 0x30 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad12.lcd_data19 */ + 0x34 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad13.lcd_data18 */ + 0x38 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad14.lcd_data17 */ + 0x3c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad15.lcd_data16 */ + 0xa0 (PULL_DISABLE | MUX_MODE7) /* lcd_data0.lcd_data0 */ + 0xa4 (PULL_DISABLE | MUX_MODE7) /* lcd_data1.lcd_data1 */ + 0xa8 (PULL_DISABLE | MUX_MODE7) /* lcd_data2.lcd_data2 */ + 0xac (PULL_DISABLE | MUX_MODE7) /* lcd_data3.lcd_data3 */ + 0xb0 (PULL_DISABLE | MUX_MODE7) /* lcd_data4.lcd_data4 */ + 0xb4 (PULL_DISABLE | MUX_MODE7) /* lcd_data5.lcd_data5 */ + 0xb8 (PULL_DISABLE | MUX_MODE7) /* lcd_data6.lcd_data6 */ + 0xbc (PULL_DISABLE | MUX_MODE7) /* lcd_data7.lcd_data7 */ + 0xc0 (PULL_DISABLE | MUX_MODE7) /* lcd_data8.lcd_data8 */ + 0xc4 (PULL_DISABLE | MUX_MODE7) /* lcd_data9.lcd_data9 */ + 0xc8 (PULL_DISABLE | MUX_MODE7) /* lcd_data10.lcd_data10 */ + 0xcc (PULL_DISABLE | MUX_MODE7) /* lcd_data11.lcd_data11 */ + 0xd0 (PULL_DISABLE | MUX_MODE7) /* lcd_data12.lcd_data12 */ + 0xd4 (PULL_DISABLE | MUX_MODE7) /* lcd_data13.lcd_data13 */ + 0xd8 (PULL_DISABLE | MUX_MODE7) /* lcd_data14.lcd_data14 */ + 0xdc (PULL_DISABLE | MUX_MODE7) /* lcd_data15.lcd_data15 */ + 0xe0 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_vsync.lcd_vsync */ + 0xe4 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_hsync.lcd_hsync */ + 0xe8 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_pclk.lcd_pclk */ + 0xec (PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_ac_bias_en.lcd_ac_bias_en */ + >; + }; + + user_leds_s0: user_leds_s0 { pinctrl-single,pins = < 0x10 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad4.gpio1_4 */ @@ -573,3 +674,7 @@ tsc { ti,wire-config = <0x00 0x11 0x22 0x33>; }; }; + +&lcdc { + status = "okay"; +};