| 504,7 → 504,75 |
|---|
| } |
| EXPORT_SYMBOL(drm_gtf_mode); |
| |
| #if IS_ENABLED(CONFIG_VIDEOMODE) |
| int drm_display_mode_from_videomode(const struct videomode *vm, |
| struct drm_display_mode *dmode) |
| { |
| dmode->hdisplay = vm->hactive; |
| dmode->hsync_start = dmode->hdisplay + vm->hfront_porch; |
| dmode->hsync_end = dmode->hsync_start + vm->hsync_len; |
| dmode->htotal = dmode->hsync_end + vm->hback_porch; |
| |
| dmode->vdisplay = vm->vactive; |
| dmode->vsync_start = dmode->vdisplay + vm->vfront_porch; |
| dmode->vsync_end = dmode->vsync_start + vm->vsync_len; |
| dmode->vtotal = dmode->vsync_end + vm->vback_porch; |
| |
| dmode->clock = vm->pixelclock / 1000; |
| |
| dmode->flags = 0; |
| if (vm->dmt_flags & VESA_DMT_HSYNC_HIGH) |
| dmode->flags |= DRM_MODE_FLAG_PHSYNC; |
| else if (vm->dmt_flags & VESA_DMT_HSYNC_LOW) |
| dmode->flags |= DRM_MODE_FLAG_NHSYNC; |
| if (vm->dmt_flags & VESA_DMT_VSYNC_HIGH) |
| dmode->flags |= DRM_MODE_FLAG_PVSYNC; |
| else if (vm->dmt_flags & VESA_DMT_VSYNC_LOW) |
| dmode->flags |= DRM_MODE_FLAG_NVSYNC; |
| if (vm->data_flags & DISPLAY_FLAGS_INTERLACED) |
| dmode->flags |= DRM_MODE_FLAG_INTERLACE; |
| if (vm->data_flags & DISPLAY_FLAGS_DOUBLESCAN) |
| dmode->flags |= DRM_MODE_FLAG_DBLSCAN; |
| drm_mode_set_name(dmode); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(drm_display_mode_from_videomode); |
| #endif |
| |
| #if IS_ENABLED(CONFIG_OF_VIDEOMODE) |
| /** |
| * of_get_drm_display_mode - get a drm_display_mode from devicetree |
| * @np: device_node with the timing specification |
| * @dmode: will be set to the return value |
| * @index: index into the list of display timings in devicetree |
| * |
| * This function is expensive and should only be used, if only one mode is to be |
| * read from DT. To get multiple modes start with of_get_display_timings and |
| * work with that instead. |
| */ |
| int of_get_drm_display_mode(struct device_node *np, |
| struct drm_display_mode *dmode, int index) |
| { |
| struct videomode vm; |
| int ret; |
| |
| ret = of_get_videomode(np, &vm, index); |
| if (ret) |
| return ret; |
| |
| drm_display_mode_from_videomode(&vm, dmode); |
| |
| pr_debug("%s: got %dx%d display mode from %s\n", |
| of_node_full_name(np), vm.hactive, vm.vactive, np->name); |
| drm_mode_debug_printmodeline(dmode); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(of_get_drm_display_mode); |
| #endif |
| |
| /** |
| * drm_mode_set_name - set the name on a mode |
| * @mode: name will be set in this mode |
| * |