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		0e7d5874fb
		
	
	
	
	
		
			
			Decouple drm_get_format_info() from struct drm_mode_fb_cmd2 and just
pass the pixel format+modifier combo in by hand.
We may want to use drm_get_format_info() outside of the normal
addfb paths where we won't have a struct drm_mode_fb_cmd2, and
creating a temporary one just for this seems silly.
Done with cocci:
@@
identifier dev, mode_cmd;
@@
struct drm_format_info *
drm_get_format_info(struct drm_device *dev,
-		    const struct drm_mode_fb_cmd2 *mode_cmd
+		    u32 pixel_format, u64 modifier
     		    )
{
<...
(
- mode_cmd->pixel_format
+ pixel_format
|
- mode_cmd->modifier[0]
+ modifier
)
...>
}
@@
identifier dev, mode_cmd;
@@
struct drm_format_info *
drm_get_format_info(struct drm_device *dev,
-		    const struct drm_mode_fb_cmd2 *mode_cmd
+		    u32 pixel_format, u64 modifier
     		    );
@@
expression dev, mode_cmd;
@@
- drm_get_format_info(dev, mode_cmd)
+ drm_get_format_info(dev, mode_cmd->pixel_format, mode_cmd->modifier[0])
v2: Fix kernel docs (Laurent)
    Drop drm_mode_fb_cmd2 forward declaration (Thomas)
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Dmitry Baryshkov <lumag@kernel.org>
Cc: Sean Paul <sean@poorly.run>
Cc: Marijn Suijten <marijn.suijten@somainline.org>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Andy Yan <andy.yan@rock-chips.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-tegra@vger.kernel.org
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250701090722.13645-3-ville.syrjala@linux.intel.com
		
	
			
		
			
				
	
	
		
			523 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			523 lines
		
	
	
	
		
			26 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2016 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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|  *
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|  * DRM core format related functions
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|  *
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|  * Permission to use, copy, modify, distribute, and sell this software and its
 | |
|  * documentation for any purpose is hereby granted without fee, provided that
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|  * the above copyright notice appear in all copies and that both that copyright
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|  * notice and this permission notice appear in supporting documentation, and
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|  * that the name of the copyright holders not be used in advertising or
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|  * publicity pertaining to distribution of the software without specific,
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|  * written prior permission.  The copyright holders make no representations
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|  * about the suitability of this software for any purpose.  It is provided "as
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|  * is" without express or implied warranty.
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|  *
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|  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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|  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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|  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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|  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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|  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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|  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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|  * OF THIS SOFTWARE.
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|  */
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| 
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| #include <linux/bug.h>
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| #include <linux/ctype.h>
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| #include <linux/export.h>
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| #include <linux/kernel.h>
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| 
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| #include <drm/drm_device.h>
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| #include <drm/drm_fourcc.h>
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| 
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| /**
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|  * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
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|  * @bpp: bits per pixels
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|  * @depth: bit depth per pixel
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|  *
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|  * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
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|  */
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| uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
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| {
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| 	uint32_t fmt = DRM_FORMAT_INVALID;
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| 
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| 	switch (bpp) {
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| 	case 1:
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| 		if (depth == 1)
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| 			fmt = DRM_FORMAT_C1;
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| 		break;
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| 
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| 	case 2:
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| 		if (depth == 2)
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| 			fmt = DRM_FORMAT_C2;
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| 		break;
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| 
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| 	case 4:
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| 		if (depth == 4)
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| 			fmt = DRM_FORMAT_C4;
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| 		break;
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| 
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| 	case 8:
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| 		if (depth == 8)
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| 			fmt = DRM_FORMAT_C8;
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| 		break;
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| 
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| 	case 16:
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| 		switch (depth) {
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| 		case 15:
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| 			fmt = DRM_FORMAT_XRGB1555;
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| 			break;
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| 		case 16:
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| 			fmt = DRM_FORMAT_RGB565;
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| 			break;
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| 		default:
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| 			break;
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| 		}
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| 		break;
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| 
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| 	case 24:
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| 		if (depth == 24)
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| 			fmt = DRM_FORMAT_RGB888;
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| 		break;
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| 
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| 	case 32:
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| 		switch (depth) {
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| 		case 24:
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| 			fmt = DRM_FORMAT_XRGB8888;
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| 			break;
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| 		case 30:
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| 			fmt = DRM_FORMAT_XRGB2101010;
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| 			break;
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| 		case 32:
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| 			fmt = DRM_FORMAT_ARGB8888;
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| 			break;
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| 		default:
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| 			break;
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| 		}
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| 		break;
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| 
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| 	default:
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| 		break;
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| 	}
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| 
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| 	return fmt;
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| }
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| EXPORT_SYMBOL(drm_mode_legacy_fb_format);
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| 
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| /**
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|  * drm_driver_legacy_fb_format - compute drm fourcc code from legacy description
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|  * @dev: DRM device
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|  * @bpp: bits per pixels
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|  * @depth: bit depth per pixel
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|  *
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|  * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
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|  * Unlike drm_mode_legacy_fb_format() this looks at the drivers mode_config,
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|  * and depending on the &drm_mode_config.quirk_addfb_prefer_host_byte_order flag
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|  * it returns little endian byte order or host byte order framebuffer formats.
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|  */
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| uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
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| 				     uint32_t bpp, uint32_t depth)
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| {
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| 	uint32_t fmt = drm_mode_legacy_fb_format(bpp, depth);
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| 
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| 	if (dev->mode_config.quirk_addfb_prefer_host_byte_order) {
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| 		if (fmt == DRM_FORMAT_XRGB8888)
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| 			fmt = DRM_FORMAT_HOST_XRGB8888;
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| 		if (fmt == DRM_FORMAT_ARGB8888)
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| 			fmt = DRM_FORMAT_HOST_ARGB8888;
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| 		if (fmt == DRM_FORMAT_RGB565)
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| 			fmt = DRM_FORMAT_HOST_RGB565;
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| 		if (fmt == DRM_FORMAT_XRGB1555)
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| 			fmt = DRM_FORMAT_HOST_XRGB1555;
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| 	}
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| 
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| 	if (dev->mode_config.quirk_addfb_prefer_xbgr_30bpp &&
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| 	    fmt == DRM_FORMAT_XRGB2101010)
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| 		fmt = DRM_FORMAT_XBGR2101010;
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| 
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| 	return fmt;
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| }
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| EXPORT_SYMBOL(drm_driver_legacy_fb_format);
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| 
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| /**
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|  * drm_driver_color_mode_format - Compute DRM 4CC code from color mode
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|  * @dev: DRM device
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|  * @color_mode: command-line color mode
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|  *
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|  * Computes a DRM 4CC pixel format code for the given color mode using
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|  * drm_driver_color_mode(). The color mode is in the format used and the
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|  * kernel command line. It specifies the number of bits per pixel
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|  * and color depth in a single value.
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|  *
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|  * Useful in fbdev emulation code, since that deals in those values. The
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|  * helper does not consider YUV or other complicated formats. This means
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|  * only legacy formats are supported (fmt->depth is a legacy field), but
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|  * the framebuffer emulation can only deal with such formats, specifically
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|  * RGB/BGA formats.
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|  */
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| uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int color_mode)
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| {
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| 	switch (color_mode) {
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| 	case 15:
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| 		return drm_driver_legacy_fb_format(dev, 16, 15);
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| 	case 32:
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| 		return drm_driver_legacy_fb_format(dev, 32, 24);
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| 	default:
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| 		return drm_driver_legacy_fb_format(dev, color_mode, color_mode);
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| 	}
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| }
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| EXPORT_SYMBOL(drm_driver_color_mode_format);
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| 
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| /*
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|  * Internal function to query information for a given format. See
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|  * drm_format_info() for the public API.
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|  */
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| const struct drm_format_info *__drm_format_info(u32 format)
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| {
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| 	static const struct drm_format_info formats[] = {
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| 		{ .format = DRM_FORMAT_C1,		.depth = 1,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 		{ .format = DRM_FORMAT_C2,		.depth = 2,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 		{ .format = DRM_FORMAT_C4,		.depth = 4,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 		{ .format = DRM_FORMAT_C8,		.depth = 8,  .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1, .is_color_indexed = true },
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| 		{ .format = DRM_FORMAT_D1,		.depth = 1,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_D2,		.depth = 2,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_D4,		.depth = 4,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_D8,		.depth = 8,  .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R1,		.depth = 1,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 8, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R2,		.depth = 2,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 4, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R4,		.depth = 4,  .num_planes = 1,
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| 		  .char_per_block = { 1, }, .block_w = { 2, }, .block_h = { 1, }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R8,		.depth = 8,  .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R10,		.depth = 10, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_R12,		.depth = 12, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGB332,		.depth = 8,  .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGR233,		.depth = 8,  .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XRGB4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XBGR4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGBX4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGRX4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_ARGB4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_ABGR4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGBA4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_BGRA4444,	.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_XRGB1555,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XBGR1555,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGBX5551,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGRX5551,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_ARGB1555,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_ABGR1555,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGBA5551,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_BGRA5551,	.depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGB565,		.depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGR565,		.depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| #ifdef __BIG_ENDIAN
 | |
| 		{ .format = DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
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| #endif
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| 		{ .format = DRM_FORMAT_RGB888,		.depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGR888,		.depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XRGB8888,	.depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XBGR8888,	.depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGBX8888,	.depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGRX8888,	.depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGB565_A8,	.depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_BGR565_A8,	.depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_XRGB2101010,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_XBGR2101010,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_RGBX1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_BGRX1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
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| 		{ .format = DRM_FORMAT_ARGB2101010,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_ABGR2101010,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGBA1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_BGRA1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGB161616,	.depth = 0,
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| 		  .num_planes = 1, .char_per_block = { 6, 0, 0 },
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| 		  .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
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| 		  .hsub = 1, .vsub = 1, .has_alpha = false },
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| 		{ .format = DRM_FORMAT_BGR161616,	.depth = 0,
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| 		  .num_planes = 1, .char_per_block = { 6, 0, 0 },
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| 		  .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
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| 		  .hsub = 1, .vsub = 1, .has_alpha = false },
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| 		{ .format = DRM_FORMAT_ARGB8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_ABGR8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_RGBA8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_BGRA8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
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| 		{ .format = DRM_FORMAT_XRGB16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
 | |
| 		{ .format = DRM_FORMAT_XBGR16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
 | |
| 		{ .format = DRM_FORMAT_ARGB16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_ABGR16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_AXBXGXRX106106106106, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_XRGB16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
 | |
| 		{ .format = DRM_FORMAT_XBGR16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
 | |
| 		{ .format = DRM_FORMAT_ARGB16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_ABGR16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_RGB888_A8,	.depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_BGR888_A8,	.depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_XRGB8888_A8,	.depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_XBGR8888_A8,	.depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_RGBX8888_A8,	.depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_BGRX8888_A8,	.depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
 | |
| 		{ .format = DRM_FORMAT_YUV410,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVU410,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV411,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVU411,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV420,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVU420,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV422,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVU422,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV444,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVU444,		.depth = 0,  .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV12,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV21,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV16,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV61,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV24,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV42,		.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUYV,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YVYU,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_UYVY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_VYUY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_XYUV8888,	.depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_VUY888,          .depth = 0,  .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_AYUV,		.depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y210,            .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y212,            .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y216,            .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y410,            .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y412,            .depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y416,            .depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_XVYU2101010,	.depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_XVYU12_16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_XVYU16161616,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y0L0,		.depth = 0,  .num_planes = 1,
 | |
| 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_X0L0,		.depth = 0,  .num_planes = 1,
 | |
| 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Y0L2,		.depth = 0,  .num_planes = 1,
 | |
| 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_X0L2,		.depth = 0,  .num_planes = 1,
 | |
| 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_P010,            .depth = 0,  .num_planes = 2,
 | |
| 		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_P012,		.depth = 0,  .num_planes = 2,
 | |
| 		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
 | |
| 		   .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2,
 | |
| 		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_P210,		.depth = 0,
 | |
| 		  .num_planes = 2, .char_per_block = { 2, 4, 0 },
 | |
| 		  .block_w = { 1, 1, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
 | |
| 		  .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_VUY101010,	.depth = 0,
 | |
| 		  .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1,
 | |
| 		  .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV420_8BIT,     .depth = 0,
 | |
| 		  .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
 | |
| 		  .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_YUV420_10BIT,    .depth = 0,
 | |
| 		  .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
 | |
| 		  .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV15,		.depth = 0,
 | |
| 		  .num_planes = 2, .char_per_block = { 5, 5, 0 },
 | |
| 		  .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
 | |
| 		  .vsub = 2, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV20,		.depth = 0,
 | |
| 		  .num_planes = 2, .char_per_block = { 5, 5, 0 },
 | |
| 		  .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2,
 | |
| 		  .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_NV30,		.depth = 0,
 | |
| 		  .num_planes = 2, .char_per_block = { 5, 5, 0 },
 | |
| 		  .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1,
 | |
| 		  .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Q410,		.depth = 0,
 | |
| 		  .num_planes = 3, .char_per_block = { 2, 2, 2 },
 | |
| 		  .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
 | |
| 		  .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_Q401,		.depth = 0,
 | |
| 		  .num_planes = 3, .char_per_block = { 2, 2, 2 },
 | |
| 		  .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 1,
 | |
| 		  .vsub = 1, .is_yuv = true },
 | |
| 		{ .format = DRM_FORMAT_P030,            .depth = 0,  .num_planes = 2,
 | |
| 		  .char_per_block = { 4, 8, 0 }, .block_w = { 3, 3, 0 }, .block_h = { 1, 1, 0 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S010,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S210,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 1, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S410,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 1, .vsub = 1, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S012,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S212,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 1, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S412,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 1, .vsub = 1, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S016,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 2, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S216,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 2, .vsub = 1, .is_yuv = true},
 | |
| 		{ .format = DRM_FORMAT_S416,            .depth = 0,  .num_planes = 3,
 | |
| 		  .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 },
 | |
| 		  .hsub = 1, .vsub = 1, .is_yuv = true},
 | |
| 	};
 | |
| 
 | |
| 	unsigned int i;
 | |
| 
 | |
| 	for (i = 0; i < ARRAY_SIZE(formats); ++i) {
 | |
| 		if (formats[i].format == format)
 | |
| 			return &formats[i];
 | |
| 	}
 | |
| 
 | |
| 	return NULL;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * drm_format_info - query information for a given format
 | |
|  * @format: pixel format (DRM_FORMAT_*)
 | |
|  *
 | |
|  * The caller should only pass a supported pixel format to this function.
 | |
|  * Unsupported pixel formats will generate a warning in the kernel log.
 | |
|  *
 | |
|  * Returns:
 | |
|  * The instance of struct drm_format_info that describes the pixel format, or
 | |
|  * NULL if the format is unsupported.
 | |
|  */
 | |
| const struct drm_format_info *drm_format_info(u32 format)
 | |
| {
 | |
| 	const struct drm_format_info *info;
 | |
| 
 | |
| 	info = __drm_format_info(format);
 | |
| 	WARN_ON(!info);
 | |
| 	return info;
 | |
| }
 | |
| EXPORT_SYMBOL(drm_format_info);
 | |
| 
 | |
| /**
 | |
|  * drm_get_format_info - query information for a given framebuffer configuration
 | |
|  * @dev: DRM device
 | |
|  * @pixel_format: pixel format (DRM_FORMAT_*)
 | |
|  * @modifier: modifier
 | |
|  *
 | |
|  * Returns:
 | |
|  * The instance of struct drm_format_info that describes the pixel format, or
 | |
|  * NULL if the format is unsupported.
 | |
|  */
 | |
| const struct drm_format_info *
 | |
| drm_get_format_info(struct drm_device *dev,
 | |
| 		    u32 pixel_format, u64 modifier)
 | |
| {
 | |
| 	const struct drm_format_info *info = NULL;
 | |
| 
 | |
| 	if (dev->mode_config.funcs->get_format_info)
 | |
| 		info = dev->mode_config.funcs->get_format_info(pixel_format,
 | |
| 							       modifier);
 | |
| 
 | |
| 	if (!info)
 | |
| 		info = drm_format_info(pixel_format);
 | |
| 
 | |
| 	return info;
 | |
| }
 | |
| EXPORT_SYMBOL(drm_get_format_info);
 | |
| 
 | |
| /**
 | |
|  * drm_format_info_block_width - width in pixels of block.
 | |
|  * @info: pixel format info
 | |
|  * @plane: plane index
 | |
|  *
 | |
|  * Returns:
 | |
|  * The width in pixels of a block, depending on the plane index.
 | |
|  */
 | |
| unsigned int drm_format_info_block_width(const struct drm_format_info *info,
 | |
| 					 int plane)
 | |
| {
 | |
| 	if (!info || plane < 0 || plane >= info->num_planes)
 | |
| 		return 0;
 | |
| 
 | |
| 	if (!info->block_w[plane])
 | |
| 		return 1;
 | |
| 	return info->block_w[plane];
 | |
| }
 | |
| EXPORT_SYMBOL(drm_format_info_block_width);
 | |
| 
 | |
| /**
 | |
|  * drm_format_info_block_height - height in pixels of a block
 | |
|  * @info: pixel format info
 | |
|  * @plane: plane index
 | |
|  *
 | |
|  * Returns:
 | |
|  * The height in pixels of a block, depending on the plane index.
 | |
|  */
 | |
| unsigned int drm_format_info_block_height(const struct drm_format_info *info,
 | |
| 					  int plane)
 | |
| {
 | |
| 	if (!info || plane < 0 || plane >= info->num_planes)
 | |
| 		return 0;
 | |
| 
 | |
| 	if (!info->block_h[plane])
 | |
| 		return 1;
 | |
| 	return info->block_h[plane];
 | |
| }
 | |
| EXPORT_SYMBOL(drm_format_info_block_height);
 | |
| 
 | |
| /**
 | |
|  * drm_format_info_bpp - number of bits per pixel
 | |
|  * @info: pixel format info
 | |
|  * @plane: plane index
 | |
|  *
 | |
|  * Returns:
 | |
|  * The actual number of bits per pixel, depending on the plane index.
 | |
|  */
 | |
| unsigned int drm_format_info_bpp(const struct drm_format_info *info, int plane)
 | |
| {
 | |
| 	if (!info || plane < 0 || plane >= info->num_planes)
 | |
| 		return 0;
 | |
| 
 | |
| 	return info->char_per_block[plane] * 8 /
 | |
| 	       (drm_format_info_block_width(info, plane) *
 | |
| 		drm_format_info_block_height(info, plane));
 | |
| }
 | |
| EXPORT_SYMBOL(drm_format_info_bpp);
 | |
| 
 | |
| /**
 | |
|  * drm_format_info_min_pitch - computes the minimum required pitch in bytes
 | |
|  * @info: pixel format info
 | |
|  * @plane: plane index
 | |
|  * @buffer_width: buffer width in pixels
 | |
|  *
 | |
|  * Returns:
 | |
|  * The minimum required pitch in bytes for a buffer by taking into consideration
 | |
|  * the pixel format information and the buffer width.
 | |
|  */
 | |
| uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
 | |
| 				   int plane, unsigned int buffer_width)
 | |
| {
 | |
| 	if (!info || plane < 0 || plane >= info->num_planes)
 | |
| 		return 0;
 | |
| 
 | |
| 	return DIV_ROUND_UP_ULL((u64)buffer_width * info->char_per_block[plane],
 | |
| 			    drm_format_info_block_width(info, plane) *
 | |
| 			    drm_format_info_block_height(info, plane));
 | |
| }
 | |
| EXPORT_SYMBOL(drm_format_info_min_pitch);
 |