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Commit a4dabca8 authored by Gwenhael Goavec-Merou's avatar Gwenhael Goavec-Merou Committed by Shawn Guo
Browse files

ARM: mxs: apf28dev: Add LCD and backlight support 



Signed-off-by: default avatarGwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: default avatarJulien Boibessot <julien.boibessot@armadeus.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent 24acd6bf

arch/arm/boot/dts/imx28-apf28dev.dts

+28 −0
Original line number Diff line number Diff line
@@ -46,6 +46,26 @@ 
					fsl,voltage = <1>;

					fsl,pull-up = <0>;

				};



				lcdif_pins_apf28dev: lcdif-apf28dev@0 {

					reg = <0>;

					fsl,pinmux-ids = <

						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */

						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */

						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */

						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */

					>;

					fsl,drive-strength = <0>;

					fsl,voltage = <1>;

					fsl,pull-up = <0>;

				};

			};



			lcdif@80030000 {

				pinctrl-names = "default";

				pinctrl-0 = <&lcdif_16bit_pins_a

						&lcdif_pins_apf28dev>;

				status = "okay";

			};

		};
@@ -110,4 +130,12 @@ 
			linux,default-trigger = "heartbeat";

		};

	};



	backlight {

		compatible = "pwm-backlight";



		pwms = <&pwm 3 191000>;

		brightness-levels = <0 4 8 16 32 64 128 255>;

		default-brightness-level = <6>;

	};

};

arch/arm/mach-mxs/mach-mxs.c

+24 −0
Original line number Diff line number Diff line
@@ -100,6 +100,25 @@ static struct fb_videomode apx4devkit_video_modes[] = { 
	},

};



static struct fb_videomode apf28dev_video_modes[] = {

	{

		.name = "LW700",

		.refresh = 60,

		.xres = 800,

		.yres = 480,

		.pixclock = 30303, /* picosecond */

		.left_margin = 96,

		.right_margin = 96, /* at least 3 & 1 */

		.upper_margin = 0x14,

		.lower_margin = 0x15,

		.hsync_len = 64,

		.vsync_len = 4,

		.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |

				FB_SYNC_DATA_ENABLE_HIGH_ACT |

				FB_SYNC_DOTCLK_FAILING_ACT,

	},

};



static struct mxsfb_platform_data mxsfb_pdata __initdata;



/*
@@ -374,6 +393,11 @@ static void __init cfa10049_init(void) 
static void __init apf28_init(void)

{

	enable_clk_enet_out();



	mxsfb_pdata.mode_list = apf28dev_video_modes;

	mxsfb_pdata.mode_count = ARRAY_SIZE(apf28dev_video_modes);

	mxsfb_pdata.default_bpp = 16;

	mxsfb_pdata.ld_intf_width = STMLCDIF_16BIT;

}



static void __init mxs_machine_init(void)