Commit f413070e authored by Anatolij Gustschin's avatar Anatolij Gustschin Committed by Florian Tobias Schandinat
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fbdev: da8xx: add support for SP10Q010 display 



Add timing data for Hitachi SP10Q010 display and allow configuration
of the 4bpp palette. For 4bpp framebuffer enable reversed order of
pixels in a byte. This requires defining FB_CFB_REV_PIXELS_IN_BYTE
and additionally setting var.nonstd to the value FB_NONSTD_REV_PIX_IN_B.
Note that it is not enough to set da8xx_fb_var.nonstd to this value
statically, since FBIOPUT_VSCREENINFO ioctl might pass var struct with
.nonstd field set to zero or another value. Therefore this setting must
be adjusted in fb_check_var() according to the requested bpp value.

Signed-off-by: default avatarAnatolij Gustschin <agust@denx.de>
Cc: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent 084e104b

drivers/video/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -2246,6 +2246,7 @@ config FB_DA8XX 
	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	select FB_CFB_REV_PIXELS_IN_BYTE

	---help---

	  This is the frame buffer device driver for the TI LCD controller

	  found on DA8xx/OMAP-L1xx SoCs.

drivers/video/da8xx-fb.c

+37 −1
Original line number Diff line number Diff line
@@ -239,6 +239,20 @@ static struct da8xx_panel known_lcd_panels[] = { 
		.pxl_clk = 7833600,

		.invert_pxl_clk = 0,

	},

	[2] = {

		/* Hitachi SP10Q010 */

		.name = "SP10Q010",

		.width = 320,

		.height = 240,

		.hfp = 10,

		.hbp = 10,

		.hsw = 10,

		.vfp = 10,

		.vbp = 10,

		.vsw = 10,

		.pxl_clk = 7833600,

		.invert_pxl_clk = 0,

	},

};



/* Enable the Raster Engine of the LCD Controller */
@@ -547,7 +561,26 @@ static int fb_setcolreg(unsigned regno, unsigned red, unsigned green, 
	if (info->fix.visual == FB_VISUAL_DIRECTCOLOR)

		return 1;



	if (info->var.bits_per_pixel == 8) {

	if (info->var.bits_per_pixel == 4) {

		if (regno > 15)

			return 1;



		if (info->var.grayscale) {

			pal = regno;

		} else {

			red >>= 4;

			green >>= 8;

			blue >>= 12;



			pal = (red & 0x0f00);

			pal |= (green & 0x00f0);

			pal |= (blue & 0x000f);

		}

		if (regno == 0)

			pal |= 0x2000;

		palette[regno] = pal;



	} else if (info->var.bits_per_pixel == 8) {

		red >>= 4;

		green >>= 8;

		blue >>= 12;
@@ -802,6 +835,7 @@ static int fb_check_var(struct fb_var_screeninfo *var, 
		var->blue.length = 8;

		var->transp.offset = 0;

		var->transp.length = 0;

		var->nonstd = 0;

		break;

	case 4:

		var->red.offset = 0;
@@ -812,6 +846,7 @@ static int fb_check_var(struct fb_var_screeninfo *var, 
		var->blue.length = 4;

		var->transp.offset = 0;

		var->transp.length = 0;

		var->nonstd = FB_NONSTD_REV_PIX_IN_B;

		break;

	case 16:		/* RGB 565 */

		var->red.offset = 11;
@@ -822,6 +857,7 @@ static int fb_check_var(struct fb_var_screeninfo *var, 
		var->blue.length = 5;

		var->transp.offset = 0;

		var->transp.length = 0;

		var->nonstd = 0;

		break;

	default:

		err = -EINVAL;

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