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authorAnatolij Gustschin <agust@denx.de>2012-03-13 17:13:57 +0400
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2012-03-20 02:59:47 +0400
commitf413070e3f0bccb40ca939b90699347daf815607 (patch)
treede2d560d7082ecf1df9ba57ecd4376ba2dfddf2a
parent084e104bd8e03e1f8e10ae73944de497f4f427b5 (diff)
downloadlinux-f413070e3f0bccb40ca939b90699347daf815607.tar.xz
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: Anatolij Gustschin <agust@denx.de> Cc: Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
-rw-r--r--drivers/video/Kconfig1
-rw-r--r--drivers/video/da8xx-fb.c38
2 files changed, 38 insertions, 1 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index a43594243186..005347a35b61 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -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.
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 8f7e05143708..47118c75a4c0 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -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;