Re: [PATCH v6 2/2] Documentation/gpu: Add Synaptics tiling formats documentation

From: kernel test robot
Date: Wed Mar 22 2023 - 15:19:59 EST


Hi Hsia-Jun,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.3-rc3 next-20230322]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Hsia-Jun-Li/drm-fourcc-Add-Synaptics-VideoSmart-tiled-modifiers/20230322-163252
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link: https://lore.kernel.org/r/20230322082910.115371-3-randy.li%40synaptics.com
patch subject: [PATCH v6 2/2] Documentation/gpu: Add Synaptics tiling formats documentation
reproduce:
# https://github.com/intel-lab-lkp/linux/commit/51642395567738204b07b9c48e27d4a5298f1ca9
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Hsia-Jun-Li/drm-fourcc-Add-Synaptics-VideoSmart-tiled-modifiers/20230322-163252
git checkout 51642395567738204b07b9c48e27d4a5298f1ca9
make menuconfig
# enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
make htmldocs

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303230311.mRoFe6oK-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> Documentation/gpu/synaptics.rst:47: WARNING: Bullet list ends without a blank line; unexpected unindent.
>> Documentation/gpu/synaptics.rst:60: WARNING: Block quote ends without a blank line; unexpected unindent.
>> Documentation/gpu/synaptics.rst:38: WARNING: Error parsing content block for the "flat-table" directive: exactly one bullet list expected.

vim +47 Documentation/gpu/synaptics.rst

37
> 38 .. flat-table:: Synpatics Image Format Modifiers
39
40 * - Identifier
41 - Fourcc
42 - Details
43
44 * - DRM_FORMAT_MOD_SYNA_V4H1
45 - DRM_FORMAT_NV12
46 - The plain uncompressed 8 bits tile format. It sounds similar to
> 47 Intel's Y-tile. but it won't take any pixel from the next X direction
48 in a tile group. The line stride and image height must be aligned to
49 a multiple of 16. The height of chrominance plane would plus 8.
50
51 * - DRM_FORMAT_MOD_SYNA_V4H3P8
52 - DRM_FORMAT_NV15
53 - The plain uncompressed 10 bits tile format. It stores pixel in 2D
54 3x4 tiles with a 8bits padding to each of tile. Then a tile is in a
55 128 bits cache line.
56
57 * - DRM_FORMAT_MOD_SYNA_V4H1_64L4_COMPRESSED
58 - DRM_FORMAT_NV12
59 - Group of tiles and compressed variant of ``DRM_FORMAT_MOD_SYNA_V4H1``.
> 60 A group of tiles would contain 64x4 pixels, where a tile has 1x4

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