diff options
Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-main.c')
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-main.c | 134 |
1 files changed, 108 insertions, 26 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index 602b71a92d3c..70aa47de7146 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -808,19 +808,15 @@ static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var, static void omapfb_calc_addr(const struct omapfb_info *ofbi, const struct fb_var_screeninfo *var, const struct fb_fix_screeninfo *fix, - int rotation, u32 *paddr, void __iomem **vaddr) + int rotation, u32 *paddr) { u32 data_start_p; - void __iomem *data_start_v; int offset; - if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); - data_start_v = NULL; - } else { + else data_start_p = omapfb_get_region_paddr(ofbi); - data_start_v = omapfb_get_region_vaddr(ofbi); - } if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) offset = calc_rotation_offset_vrfb(var, fix, rotation); @@ -828,16 +824,14 @@ static void omapfb_calc_addr(const struct omapfb_info *ofbi, offset = calc_rotation_offset_dma(var, fix, rotation); data_start_p += offset; - data_start_v += offset; if (offset) DBG("offset %d, %d = %d\n", var->xoffset, var->yoffset, offset); - DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); + DBG("paddr %x\n", data_start_p); *paddr = data_start_p; - *vaddr = data_start_v; } /* setup overlay according to the fb */ @@ -850,7 +844,6 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, struct fb_fix_screeninfo *fix = &fbi->fix; enum omap_color_mode mode = 0; u32 data_start_p = 0; - void __iomem *data_start_v = NULL; struct omap_overlay_info info; int xres, yres; int screen_width; @@ -880,8 +873,7 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, } if (ofbi->region->size) - omapfb_calc_addr(ofbi, var, fix, rotation, - &data_start_p, &data_start_v); + omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p); r = fb_mode_to_dss_mode(var, &mode); if (r) { @@ -910,7 +902,6 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, mirror = ofbi->mirror; info.paddr = data_start_p; - info.vaddr = data_start_v; info.screen_width = screen_width; info.width = xres; info.height = yres; @@ -2276,6 +2267,87 @@ static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) return r; } +static void fb_videomode_to_omap_timings(struct fb_videomode *m, + struct omap_video_timings *t) +{ + t->x_res = m->xres; + t->y_res = m->yres; + t->pixel_clock = PICOS2KHZ(m->pixclock); + t->hsw = m->hsync_len; + t->hfp = m->right_margin; + t->hbp = m->left_margin; + t->vsw = m->vsync_len; + t->vfp = m->lower_margin; + t->vbp = m->upper_margin; +} + +static int omapfb_find_best_mode(struct omap_dss_device *display, + struct omap_video_timings *timings) +{ + struct fb_monspecs *specs; + u8 *edid; + int r, i, best_xres, best_idx, len; + + if (!display->driver->read_edid) + return -ENODEV; + + len = 0x80 * 2; + edid = kmalloc(len, GFP_KERNEL); + + r = display->driver->read_edid(display, edid, len); + if (r < 0) + goto err1; + + specs = kzalloc(sizeof(*specs), GFP_KERNEL); + + fb_edid_to_monspecs(edid, specs); + + if (edid[126] > 0) + fb_edid_add_monspecs(edid + 0x80, specs); + + best_xres = 0; + best_idx = -1; + + for (i = 0; i < specs->modedb_len; ++i) { + struct fb_videomode *m; + struct omap_video_timings t; + + m = &specs->modedb[i]; + + if (m->pixclock == 0) + continue; + + /* skip repeated pixel modes */ + if (m->xres == 2880 || m->xres == 1440) + continue; + + fb_videomode_to_omap_timings(m, &t); + + r = display->driver->check_timings(display, &t); + if (r == 0 && best_xres < m->xres) { + best_xres = m->xres; + best_idx = i; + } + } + + if (best_xres == 0) { + r = -ENOENT; + goto err2; + } + + fb_videomode_to_omap_timings(&specs->modedb[best_idx], timings); + + r = 0; + +err2: + fb_destroy_modedb(specs->modedb); + kfree(specs); +err1: + kfree(edid); + + return r; +} + static int omapfb_init_display(struct omapfb2_device *fbdev, struct omap_dss_device *dssdev) { @@ -2373,8 +2445,10 @@ static int omapfb_probe(struct platform_device *pdev) omap_dss_get_device(dssdev); if (!dssdev->driver) { - dev_err(&pdev->dev, "no driver for display\n"); - r = -ENODEV; + dev_warn(&pdev->dev, "no driver for display: %s\n", + dssdev->name); + omap_dss_put_device(dssdev); + continue; } d = &fbdev->displays[fbdev->num_displays++]; @@ -2402,9 +2476,27 @@ static int omapfb_probe(struct platform_device *pdev) for (i = 0; i < fbdev->num_managers; i++) fbdev->managers[i] = omap_dss_get_overlay_manager(i); + /* gfx overlay should be the default one. find a display + * connected to that, and use it as default display */ + ovl = omap_dss_get_overlay(0); + if (ovl->manager && ovl->manager->device) { + def_display = ovl->manager->device; + } else { + dev_warn(&pdev->dev, "cannot find default display\n"); + def_display = NULL; + } + if (def_mode && strlen(def_mode) > 0) { if (omapfb_parse_def_modes(fbdev)) dev_warn(&pdev->dev, "cannot parse default modes\n"); + } else if (def_display && def_display->driver->set_timings && + def_display->driver->check_timings) { + struct omap_video_timings t; + + r = omapfb_find_best_mode(def_display, &t); + + if (r == 0) + def_display->driver->set_timings(def_display, &t); } r = omapfb_create_framebuffers(fbdev); @@ -2421,16 +2513,6 @@ static int omapfb_probe(struct platform_device *pdev) DBG("mgr->apply'ed\n"); - /* gfx overlay should be the default one. find a display - * connected to that, and use it as default display */ - ovl = omap_dss_get_overlay(0); - if (ovl->manager && ovl->manager->device) { - def_display = ovl->manager->device; - } else { - dev_warn(&pdev->dev, "cannot find default display\n"); - def_display = NULL; - } - if (def_display) { r = omapfb_init_display(fbdev, def_display); if (r) { |
