diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 104 |
1 files changed, 38 insertions, 66 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 29c53f9f449c..c9008113111b 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -492,8 +492,8 @@ EXPORT_SYMBOL(drm_fb_helper_init); * @fb_helper: driver-allocated fbdev helper * * A helper to alloc fb_info and the member cmap. Called by the driver - * within the fb_probe fb_helper callback function. Drivers do not - * need to release the allocated fb_info structure themselves, this is + * within the struct &drm_driver.fbdev_probe callback function. Drivers do + * not need to release the allocated fb_info structure themselves, this is * automatically done when calling drm_fb_helper_fini(). * * RETURNS: @@ -554,7 +554,7 @@ EXPORT_SYMBOL(drm_fb_helper_release_info); /** * drm_fb_helper_unregister_info - unregister fb_info framebuffer device - * @fb_helper: driver-allocated fbdev helper, can be NULL + * @fb_helper: driver-allocated fbdev helper, must not be NULL * * A wrapper around unregister_framebuffer, to release the fb_info * framebuffer device. This must be called before releasing all resources for @@ -562,8 +562,12 @@ EXPORT_SYMBOL(drm_fb_helper_release_info); */ void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper) { - if (fb_helper && fb_helper->info) - unregister_framebuffer(fb_helper->info); + struct fb_info *info = fb_helper->info; + struct device *dev = info->device; + + if (dev_is_pci(dev)) + vga_switcheroo_client_fb_set(to_pci_dev(dev), NULL); + unregister_framebuffer(fb_helper->info); } EXPORT_SYMBOL(drm_fb_helper_unregister_info); @@ -693,6 +697,7 @@ void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u3 } EXPORT_SYMBOL(drm_fb_helper_damage_area); +#ifdef CONFIG_FB_DEFERRED_IO /** * drm_fb_helper_deferred_io() - fbdev deferred_io callback function * @info: fb_info struct pointer @@ -736,6 +741,7 @@ void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagerefli } } EXPORT_SYMBOL(drm_fb_helper_deferred_io); +#endif /** * drm_fb_helper_set_suspend - wrapper around fb_set_suspend @@ -1441,67 +1447,27 @@ unlock: EXPORT_SYMBOL(drm_fb_helper_pan_display); static uint32_t drm_fb_helper_find_format(struct drm_fb_helper *fb_helper, const uint32_t *formats, - size_t format_count, uint32_t bpp, uint32_t depth) + size_t format_count, unsigned int color_mode) { struct drm_device *dev = fb_helper->dev; uint32_t format; size_t i; - /* - * Do not consider YUV or other complicated formats - * for framebuffers. This means only legacy formats - * are supported (fmt->depth is a legacy field), but - * the framebuffer emulation can only deal with such - * formats, specifically RGB/BGA formats. - */ - format = drm_mode_legacy_fb_format(bpp, depth); - if (!format) - goto err; + format = drm_driver_color_mode_format(dev, color_mode); + if (!format) { + drm_info(dev, "unsupported color mode of %d\n", color_mode); + return DRM_FORMAT_INVALID; + } for (i = 0; i < format_count; ++i) { if (formats[i] == format) return format; } - -err: - /* We found nothing. */ - drm_warn(dev, "bpp/depth value of %u/%u not supported\n", bpp, depth); + drm_warn(dev, "format %p4cc not supported\n", &format); return DRM_FORMAT_INVALID; } -static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper *fb_helper, - const uint32_t *formats, size_t format_count, - unsigned int color_mode) -{ - struct drm_device *dev = fb_helper->dev; - uint32_t bpp, depth; - - switch (color_mode) { - case 1: - case 2: - case 4: - case 8: - case 16: - case 24: - bpp = depth = color_mode; - break; - case 15: - bpp = 16; - depth = 15; - break; - case 32: - bpp = 32; - depth = 24; - break; - default: - drm_info(dev, "unsupported color mode of %d\n", color_mode); - return DRM_FORMAT_INVALID; - } - - return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp, depth); -} - static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, struct drm_fb_helper_surface_size *sizes) { @@ -1531,10 +1497,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, if (!cmdline_mode->bpp_specified) continue; - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - cmdline_mode->bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + cmdline_mode->bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1544,10 +1510,10 @@ static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, break; /* found supported format */ /* try preferred color mode */ - surface_format = drm_fb_helper_find_color_mode_format(fb_helper, - plane->format_types, - plane->format_count, - fb_helper->preferred_bpp); + surface_format = drm_fb_helper_find_format(fb_helper, + plane->format_types, + plane->format_count, + fb_helper->preferred_bpp); if (surface_format != DRM_FORMAT_INVALID) break; /* found supported format */ } @@ -1648,13 +1614,14 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper, /* * Allocates the backing storage and sets up the fbdev info structure through - * the ->fb_probe callback. + * the ->fbdev_probe callback. */ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) { struct drm_client_dev *client = &fb_helper->client; struct drm_device *dev = fb_helper->dev; struct drm_fb_helper_surface_size sizes; + struct fb_info *info; int ret; ret = drm_fb_helper_find_sizes(fb_helper, &sizes); @@ -1666,15 +1633,20 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper) } /* push down into drivers */ - ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); + if (dev->driver->fbdev_probe) + ret = dev->driver->fbdev_probe(fb_helper, &sizes); + else if (fb_helper->funcs) + ret = fb_helper->funcs->fb_probe(fb_helper, &sizes); if (ret < 0) return ret; strcpy(fb_helper->fb->comm, "[fbcon]"); + info = fb_helper->info; + /* Set the fb info for vgaswitcheroo clients. Does nothing otherwise. */ - if (dev_is_pci(dev->dev)) - vga_switcheroo_client_fb_set(to_pci_dev(dev->dev), fb_helper->info); + if (dev_is_pci(info->device)) + vga_switcheroo_client_fb_set(to_pci_dev(info->device), info); return 0; } @@ -1738,7 +1710,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info, * instance and the drm framebuffer allocated in &drm_fb_helper.fb. * * Drivers should call this (or their equivalent setup code) from their - * &drm_fb_helper_funcs.fb_probe callback after having allocated the fbdev + * &drm_driver.fbdev_probe callback after having allocated the fbdev * backing storage framebuffer. */ void drm_fb_helper_fill_info(struct fb_info *info, @@ -1894,7 +1866,7 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper) * Note that this also registers the fbdev and so allows userspace to call into * the driver through the fbdev interfaces. * - * This function will call down into the &drm_fb_helper_funcs.fb_probe callback + * This function will call down into the &drm_driver.fbdev_probe callback * to let the driver allocate and initialize the fbdev info structure and the * drm framebuffer used to back the fbdev. drm_fb_helper_fill_info() is provided * as a helper to setup simple default values for the fbdev info structure. |