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-rw-r--r--packages/linux/linux-omap-pm/mru-make-video-timings-selectable.diff312
1 files changed, 312 insertions, 0 deletions
diff --git a/packages/linux/linux-omap-pm/mru-make-video-timings-selectable.diff b/packages/linux/linux-omap-pm/mru-make-video-timings-selectable.diff
new file mode 100644
index 0000000000..bba3ef72cc
--- /dev/null
+++ b/packages/linux/linux-omap-pm/mru-make-video-timings-selectable.diff
@@ -0,0 +1,312 @@
+From: Mans Rullgard <mans@mansr.com>
+Date: Fri, 29 Aug 2008 01:42:12 +0000 (+0100)
+Subject: OMAP: Make video mode selectable from pre-defined list
+X-Git-Url: http://git.mansr.com/?p=linux-omap;a=commitdiff_plain;h=7a9e55d7156dae6bc930c77620a88a669d2ed1c9
+
+OMAP: Make video mode selectable from pre-defined list
+
+This adds a list of common video modes and allows one to be
+selected with video=omapfb:mode:name on the command line,
+overriding the defaults from lcd_*.c. A default named mode
+can also be specified in the kernel configuration.
+
+Signed-off-by: Mans Rullgard <mans@mansr.com>
+---
+
+diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
+index 5ebd591..9977e80 100644
+--- a/drivers/video/omap/Kconfig
++++ b/drivers/video/omap/Kconfig
+@@ -7,26 +7,13 @@ config FB_OMAP
+ help
+ Frame buffer driver for OMAP based boards.
+
+-choice
+- depends on FB_OMAP && MACH_OVERO
+- prompt "Screen resolution"
+- default FB_OMAP_079M3R
++config FB_OMAP_VIDEO_MODE
++ string "Default video mode"
++ depends on FB_OMAP
+ help
+- Selected desired screen resolution
+-
+-config FB_OMAP_031M3R
+- boolean "640 x 480 @ 60 Hz Reduced blanking"
+-
+-config FB_OMAP_048M3R
+- boolean "800 x 600 @ 60 Hz Reduced blanking"
+-
+-config FB_OMAP_079M3R
+- boolean "1024 x 768 @ 60 Hz Reduced blanking"
+-
+-config FB_OMAP_092M9R
+- boolean "1280 x 720 @ 60 Hz Reduced blanking"
+-
+-endchoice
++ Enter video mode name to use if none is specified on the kernel
++ command line. If left blank, board-specific default timings
++ will be used. See omapfb_main.c for a list of valid mode names.
+
+ config FB_OMAP_LCDC_EXTERNAL
+ bool "External LCD controller support"
+diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
+index e9ffb92..c4c4049 100644
+--- a/drivers/video/omap/omapfb_main.c
++++ b/drivers/video/omap/omapfb_main.c
+@@ -36,6 +36,20 @@
+
+ #define MODULE_NAME "omapfb"
+
++struct video_mode {
++ const char *name;
++ int x_res, y_res;
++ int pixel_clock; /* In kHz */
++ int hsw; /* Horizontal synchronization
++ pulse width */
++ int hfp; /* Horizontal front porch */
++ int hbp; /* Horizontal back porch */
++ int vsw; /* Vertical synchronization
++ pulse width */
++ int vfp; /* Vertical front porch */
++ int vbp; /* Vertical back porch */
++};
++
+ static unsigned int def_accel;
+ static unsigned long def_vram[OMAPFB_PLANE_NUM];
+ static unsigned int def_vram_cnt;
+@@ -43,6 +57,7 @@ static unsigned long def_vxres;
+ static unsigned long def_vyres;
+ static unsigned int def_rotate;
+ static unsigned int def_mirror;
++static char def_mode[16] = CONFIG_FB_OMAP_VIDEO_MODE;
+
+ #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
+ static int manual_update = 1;
+@@ -53,6 +68,7 @@ static int manual_update;
+ static struct platform_device *fbdev_pdev;
+ static struct lcd_panel *fbdev_panel;
+ static struct omapfb_device *omapfb_dev;
++static struct video_mode video_mode;
+
+ struct caps_table_struct {
+ unsigned long flag;
+@@ -83,6 +99,152 @@ static struct caps_table_struct color_caps[] = {
+ { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
+ };
+
++static struct video_mode video_modes[] __initdata = {
++ {
++ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
++ .name = "640x480@60",
++ .x_res = 640,
++ .y_res = 480,
++ .hfp = 48,
++ .hsw = 32,
++ .hbp = 80,
++ .vfp = 3,
++ .vsw = 4,
++ .vbp = 7,
++ .pixel_clock = 23500,
++ },
++ {
++ /* 800 x 600 @ 60 Hz Reduced blanking VESA CVT 0.48M3-R */
++ .name = "800x600@60",
++ .x_res = 800,
++ .y_res = 600,
++ .hfp = 48,
++ .hsw = 32,
++ .hbp = 80,
++ .vfp = 3,
++ .vsw = 4,
++ .vbp = 11,
++ .pixel_clock = 35500,
++ },
++ {
++ /* 1024 x 768 @ 60 Hz Reduced blanking VESA CVT 0.79M3-R */
++ .name = "1024x768@60",
++ .x_res = 1024,
++ .y_res = 768,
++ .hfp = 48,
++ .hsw = 32,
++ .hbp = 80,
++ .vfp = 3,
++ .vsw = 4,
++ .vbp = 15,
++ .pixel_clock = 56000,
++ },
++ {
++ /* 1280 x 720 @ 60 Hz Reduced blanking VESA CVT 0.92M9-R */
++ .name = "1280x720@60",
++ .x_res = 1280,
++ .y_res = 720,
++ .hfp = 48,
++ .hsw = 32,
++ .hbp = 80,
++ .vfp = 3,
++ .vsw = 5,
++ .vbp = 13,
++ .pixel_clock = 64000,
++ },
++ {
++ /* 720 x 480 @ 60 Hz CEA-861 Format 3 */
++ .name = "480p60",
++ .x_res = 720,
++ .y_res = 480,
++ .hfp = 16,
++ .hsw = 62,
++ .hbp = 60,
++ .vfp = 9,
++ .vsw = 6,
++ .vbp = 30,
++ .pixel_clock = 27027,
++ },
++ {
++ /* 720 x 576 @ 60 Hz CEA-861 Format 18 */
++ .name = "576p50",
++ .x_res = 720,
++ .y_res = 576,
++ .hfp = 12,
++ .hsw = 64,
++ .hbp = 68,
++ .vfp = 5,
++ .vsw = 5,
++ .vbp = 39,
++ .pixel_clock = 27000,
++ },
++ {
++ /* 1280 x 720 @ 50 Hz CEA-861B Format 19 */
++ .name = "720p50",
++ .x_res = 1280,
++ .y_res = 720,
++ .hfp = 440,
++ .hsw = 40,
++ .hbp = 220,
++ .vfp = 20,
++ .vsw = 5,
++ .vbp = 5,
++ .pixel_clock = 74250,
++ },
++ {
++ /* 1280 x 720 @ 60 Hz CEA-861B Format 4 */
++ .name = "720p60",
++ .x_res = 1280,
++ .y_res = 720,
++ .hfp = 110,
++ .hsw = 40,
++ .hbp = 220,
++ .vfp = 20,
++ .vsw = 5,
++ .vbp = 5,
++ .pixel_clock = 74250,
++ },
++ {
++ /* 1920 x 1080 @ 24 Hz CEA-861B Format 32 */
++ .name = "1080p24",
++ .x_res = 1920,
++ .y_res = 1080,
++ .hfp = 148,
++ .hsw = 44,
++ .hbp = 638,
++ .vfp = 36,
++ .vsw = 5,
++ .vbp = 4,
++ .pixel_clock = 74250,
++ },
++ {
++ /* 1920 x 1080 @ 25 Hz CEA-861B Format 33 */
++ .name = "1080p25",
++ .x_res = 1920,
++ .y_res = 1080,
++ .hfp = 148,
++ .hsw = 44,
++ .hbp = 528,
++ .vfp = 36,
++ .vsw = 5,
++ .vbp = 4,
++ .pixel_clock = 74250,
++ },
++ {
++ /* 1920 x 1080 @ 30 Hz CEA-861B Format 34 */
++ .name = "1080p30",
++ .x_res = 1920,
++ .y_res = 1080,
++ .hfp = 148,
++ .hsw = 44,
++ .hbp = 88,
++ .vfp = 36,
++ .vsw = 5,
++ .vbp = 4,
++ .pixel_clock = 74250,
++ },
++};
++
+ /*
+ * ---------------------------------------------------------------------------
+ * LCD panel
+@@ -1714,6 +1876,20 @@ static int omapfb_do_probe(struct platform_device *pdev,
+ goto cleanup;
+ }
+
++ if (video_mode.name) {
++ pr_info("omapfb: using mode %s\n", video_mode.name);
++
++ fbdev->panel->x_res = video_mode.x_res;
++ fbdev->panel->y_res = video_mode.y_res;
++ fbdev->panel->pixel_clock = video_mode.pixel_clock;
++ fbdev->panel->hsw = video_mode.hsw;
++ fbdev->panel->hfp = video_mode.hfp;
++ fbdev->panel->hbp = video_mode.hbp;
++ fbdev->panel->vsw = video_mode.vsw;
++ fbdev->panel->vfp = video_mode.vfp;
++ fbdev->panel->vbp = video_mode.vbp;
++ }
++
+ r = fbdev->panel->init(fbdev->panel, fbdev);
+ if (r)
+ goto cleanup;
+@@ -1870,6 +2046,17 @@ static struct platform_driver omapfb_driver = {
+ },
+ };
+
++static void __init omapfb_find_mode(char *name, struct video_mode *vmode)
++{
++ int i;
++
++ for (i = 0; i < sizeof(video_modes)/sizeof(video_modes[0]); i++)
++ if (!strcmp(name, video_modes[i].name)) {
++ *vmode = video_modes[i];
++ break;
++ }
++}
++
+ #ifndef MODULE
+
+ /* Process kernel command line parameters */
+@@ -1918,6 +2105,8 @@ static int __init omapfb_setup(char *options)
+ def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
+ else if (!strncmp(this_opt, "manual_update", 13))
+ manual_update = 1;
++ else if (!strncmp(this_opt, "mode:", 5))
++ strncpy(def_mode, this_opt + 5, sizeof(def_mode));
+ else {
+ pr_debug("omapfb: invalid option\n");
+ r = -1;
+@@ -1939,6 +2128,9 @@ static int __init omapfb_init(void)
+ return -ENODEV;
+ omapfb_setup(option);
+ #endif
++
++ omapfb_find_mode(def_mode, &video_mode);
++
+ /* Register the driver with LDM */
+ if (platform_driver_register(&omapfb_driver)) {
+ pr_debug("failed to register omapfb driver\n");
+@@ -1960,6 +2152,7 @@ module_param_named(vyres, def_vyres, long, 0664);
+ module_param_named(rotate, def_rotate, uint, 0664);
+ module_param_named(mirror, def_mirror, uint, 0664);
+ module_param_named(manual_update, manual_update, bool, 0664);
++module_param_string(video_mode, def_mode, sizeof(def_mode), 0664);
+
+ module_init(omapfb_init);
+ module_exit(omapfb_cleanup);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 03:07:46 +0000