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Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0023-DSS2-pass-the-default-FB-color-format-through-board.patch')
-rw-r--r--meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0023-DSS2-pass-the-default-FB-color-format-through-board.patch214
1 files changed, 214 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0023-DSS2-pass-the-default-FB-color-format-through-board.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0023-DSS2-pass-the-default-FB-color-format-through-board.patch
new file mode 100644
index 0000000000..6492905530
--- /dev/null
+++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0023-DSS2-pass-the-default-FB-color-format-through-board.patch
@@ -0,0 +1,214 @@
+From c02b843c2732bc7b15a3e35b5dd715d68225bbd1 Mon Sep 17 00:00:00 2001
+From: Imre Deak <imre.deak@nokia.com>
+Date: Wed, 8 Apr 2009 12:51:46 +0200
+Subject: [PATCH] DSS2: pass the default FB color format through board info
+
+Add a field to the FB memory region platform data, so that board
+init code can pass a default color format to the driver. Set this
+format as an initial setting for the given FB.
+
+This is needed for an upcoming patch that adds detection of the
+color format set by the bootloader.
+
+Signed-off-by: Imre Deak <imre.deak@nokia.com>
+---
+ drivers/video/omap2/omapfb/omapfb-main.c | 121 +++++++++++++++++++++++++++---
+ drivers/video/omap2/omapfb/omapfb.h | 2 +
+ include/linux/omapfb.h | 5 +
+ 3 files changed, 117 insertions(+), 11 deletions(-)
+
+diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
+index 12ce0c3..67c67c2 100644
+--- a/drivers/video/omap2/omapfb/omapfb-main.c
++++ b/drivers/video/omap2/omapfb/omapfb-main.c
+@@ -370,6 +370,21 @@ static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var)
+ return -EINVAL;
+ }
+
++static int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
++ struct fb_var_screeninfo *var)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
++ struct omapfb_colormode *mode = &omapfb_colormodes[i];
++ if (dssmode == mode->dssmode) {
++ assign_colormode_to_var(var, mode);
++ return 0;
++ }
++ }
++ return -ENOENT;
++}
++
+ void set_fb_fix(struct fb_info *fbi)
+ {
+ struct fb_fix_screeninfo *fix = &fbi->fix;
+@@ -1267,6 +1282,60 @@ static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
+ return omapfb_alloc_fbmem(fbi, size, paddr);
+ }
+
++static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format format)
++{
++ enum omap_color_mode mode;
++
++ switch (format) {
++ case OMAPFB_COLOR_RGB565:
++ mode = OMAP_DSS_COLOR_RGB16;
++ break;
++ case OMAPFB_COLOR_YUV422:
++ mode = OMAP_DSS_COLOR_YUV2;
++ break;
++ case OMAPFB_COLOR_CLUT_8BPP:
++ mode = OMAP_DSS_COLOR_CLUT8;
++ break;
++ case OMAPFB_COLOR_CLUT_4BPP:
++ mode = OMAP_DSS_COLOR_CLUT4;
++ break;
++ case OMAPFB_COLOR_CLUT_2BPP:
++ mode = OMAP_DSS_COLOR_CLUT2;
++ break;
++ case OMAPFB_COLOR_CLUT_1BPP:
++ mode = OMAP_DSS_COLOR_CLUT1;
++ break;
++ case OMAPFB_COLOR_RGB444:
++ mode = OMAP_DSS_COLOR_RGB12U;
++ break;
++ case OMAPFB_COLOR_YUY422:
++ mode = OMAP_DSS_COLOR_UYVY;
++ break;
++ case OMAPFB_COLOR_ARGB16:
++ mode = OMAP_DSS_COLOR_ARGB16;
++ break;
++ case OMAPFB_COLOR_RGB24U:
++ mode = OMAP_DSS_COLOR_RGB24U;
++ break;
++ case OMAPFB_COLOR_RGB24P:
++ mode = OMAP_DSS_COLOR_RGB24P;
++ break;
++ case OMAPFB_COLOR_ARGB32:
++ mode = OMAP_DSS_COLOR_ARGB32;
++ break;
++ case OMAPFB_COLOR_RGBA32:
++ mode = OMAP_DSS_COLOR_RGBA32;
++ break;
++ case OMAPFB_COLOR_RGBX32:
++ mode = OMAP_DSS_COLOR_RGBX32;
++ break;
++ default:
++ mode = -EINVAL;
++ }
++
++ return mode;
++}
++
+ static int omapfb_parse_vram_param(const char *param, int max_entries,
+ unsigned long *sizes, unsigned long *paddrs)
+ {
+@@ -1483,9 +1552,36 @@ int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
+ }
+
+ var->nonstd = 0;
++ var->bits_per_pixel = 0;
+
+ var->rotate = ofbi->rotation;
+
++ /*
++ * Check if there is a default color format set in the board file,
++ * and use this format instead the default deducted from the
++ * display bpp.
++ */
++ if (fbdev->dev->platform_data) {
++ struct omapfb_platform_data *opd;
++ int id = ofbi->id;
++
++ opd = fbdev->dev->platform_data;
++ if (opd->mem_desc.region[id].format_used) {
++ enum omap_color_mode mode;
++ enum omapfb_color_format format;
++
++ format = opd->mem_desc.region[id].format;
++ mode = fb_format_to_dss_mode(format);
++ if (mode < 0) {
++ r = mode;
++ goto err;
++ }
++ r = dss_mode_to_fb_mode(mode, var);
++ if (r < 0)
++ goto err;
++ }
++ }
++
+ if (display) {
+ u16 w, h;
+ display->get_resolution(display, &w, &h);
+@@ -1502,16 +1598,18 @@ int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+
+- switch (display->get_recommended_bpp(display)) {
+- case 16:
+- var->bits_per_pixel = 16;
+- break;
+- case 24:
+- var->bits_per_pixel = 32;
+- break;
+- default:
+- dev_err(fbdev->dev, "illegal display bpp\n");
+- return -EINVAL;
++ if (!var->bits_per_pixel) {
++ switch (display->get_recommended_bpp(display)) {
++ case 16:
++ var->bits_per_pixel = 16;
++ break;
++ case 24:
++ var->bits_per_pixel = 32;
++ break;
++ default:
++ dev_err(fbdev->dev, "illegal display bpp\n");
++ return -EINVAL;
++ }
+ }
+ } else {
+ /* if there's no display, let's just guess some basic values */
+@@ -1519,7 +1617,8 @@ int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
+ var->yres = 240;
+ var->xres_virtual = var->xres;
+ var->yres_virtual = var->yres;
+- var->bits_per_pixel = 16;
++ if (!var->bits_per_pixel)
++ var->bits_per_pixel = 16;
+ }
+
+ r = check_fb_var(fbi, var);
+diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
+index 65e9e6e..2607def 100644
+--- a/drivers/video/omap2/omapfb/omapfb.h
++++ b/drivers/video/omap2/omapfb/omapfb.h
+@@ -27,6 +27,8 @@
+ #define DEBUG
+ #endif
+
++#include <mach/display.h>
++
+ #ifdef DEBUG
+ extern unsigned int omapfb_debug;
+ #define DBG(format, ...) \
+diff --git a/include/linux/omapfb.h b/include/linux/omapfb.h
+index 96190b2..7a34f22 100644
+--- a/include/linux/omapfb.h
++++ b/include/linux/omapfb.h
+@@ -298,6 +298,11 @@ struct omapfb_mem_region {
+ void __iomem *vaddr;
+ unsigned long size;
+ u8 type; /* OMAPFB_PLANE_MEM_* */
++ enum omapfb_color_format format;/* OMAPFB_COLOR_* */
++ unsigned format_used:1; /* Must be set when format is set.
++ * Needed b/c of the badly chosen 0
++ * base for OMAPFB_COLOR_* values
++ */
+ unsigned alloc:1; /* allocated by the driver */
+ unsigned map:1; /* kernel mapped by the driver */
+ };
+--
+1.5.6.5
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-02 10:09:02 +0000