NEOSEC-TINYLCD35-00A0.dts

/*
 * Copyright (C) 2014 Noralf Tronnes
 *
 * tinylcd35
 *
 * 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.
 */
/dts-v1/;
/plugin/;

/ {
	compatible = "ti,beaglebone", "ti,beaglebone-black";

	/* identification */
	part-number = "NEOSEC-TINYLCD35";
	version = "00A0";

	/* state the resources this cape uses */
	exclusive-use =
		/* the pin header uses */
		"P9.31",	/* spi1_sclk */
		"P9.29",	/* spi1_d0 MISO */
		"P9.30",	/* spi1_d1 MOSI */
		"P9.28",	/* spi1_cs0 */
		"P9.42",	/* spi1_cs1 */
		"P9.15",	/* gpio1_16 - reset */
		"P9.12",	/* gpio1_28 - dc */
		"P9.14",	/* backlight */
		"P9.25",	/* touch irq */
		/* the hardware ip uses */
		"gpio1_16",
		"gpio1_28",
		"gpio3_21",
		"ehrpwm1A",
		"spi1";

	fragment@0 {
		target = <&am33xx_pinmux>;
		__overlay__ {
			bb_spi1_pins: pinmux_bb_spi1_pins {
				pinctrl-single,pins = <
					0x190 0x33	/* mcasp0_aclkx.spi1_sclk, INPUT_PULLUP | MODE3 */
					0x194 0x33	/* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */
					0x198 0x13	/* mcasp0_axr0.spi1_d1, OUTPUT_PULLUP | MODE3 */
					0x19c 0x13	/* mcasp0_ahclkr.spi1_cs0, OUTPUT_PULLUP | MODE3 */
					0x164 0x12	/* eCAP0_in_PWM0_out.spi1_cs1 OUTPUT_PULLUP | MODE2 */
				>;
			};

			lcd_ctrl_pinmux: lcd_ctrl_pins {
				pinctrl-single,pins = <
					0x040 0x17	/* P9.15 gpio1_16  OUTPUT_PULLUP | MODE7 */
					0x078 0x17	/* P9.12 gpio1_28  OUTPUT_PULLUP | MODE7 */
					0x1ac 0x37	/* P9.25 gpio3_21  INPUT_PULLUP  | MODE7 */
				>;
			};

			pwm_bl_pins: pinmux_pwm_bl_pins {
				pinctrl-single,pins = <
					0x48 0x06       /* ehrpwm1a, MODE6 */
				>;
			};
		};
	};

	fragment@1 {
		target = <&spi1>;
		__overlay__ {
			status = "okay";
			pinctrl-names = "default";
			pinctrl-0 = <&bb_spi1_pins>;

			#address-cells = <1>;
			#size-cells = <0>;

			lcd@0{
				compatible = "neosec,tinylcd";
				reg = <0>;

				pinctrl-names = "default";
				pinctrl-0 = <&lcd_ctrl_pinmux>;

				spi-max-frequency = <48000000>;
				rotate = <270>;
				bgr;
				fps = <50>;
				buswidth = <8>;
				reset-gpios = <&gpio2 16 0>;
				dc-gpios = <&gpio2 28 0>;

				debug = <3>;
			};
		};
	};

	fragment@2 {
		target = <&epwmss1>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@3 {
		target = <&ehrpwm1>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@4 {
		target = <&ocp>;
		__overlay__ {
			backlight {
				compatible = "pwm-backlight";
				pinctrl-names = "default";
				pinctrl-0 = <&pwm_bl_pins>;
				status = "okay";

				pwms = <&ehrpwm1 0 500000 0>;
				pwm-names = "backlight";
				brightness-levels = <0 4 8 16 32 64 128 255>;
				default-brightness-level = <7>; /* index to the array above */
			};
		};
	};
};