diff options
Diffstat (limited to 'recipes/linux/linux-omap/mru-make-video-timings-selectable.diff')
| -rw-r--r-- | recipes/linux/linux-omap/mru-make-video-timings-selectable.diff | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap/mru-make-video-timings-selectable.diff b/recipes/linux/linux-omap/mru-make-video-timings-selectable.diff new file mode 100644 index 0000000000..bba3ef72cc --- /dev/null +++ b/recipes/linux/linux-omap/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); |