Re: [PATCH v3 6/7] drm/panel: Add Hitachi TX10D07VM0BAA MIPI DBI Type B panel driver
From: kernel test robot
Date: Tue Oct 20 2026 - 18:45:31 EST
Hi Svyatoslav,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next]
[also build test WARNING on drm/drm-next linus/master v7.3 next-20261019]
[cannot apply to tegra/for-next]
[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/Svyatoslav-Ryhel/drm-tegra-dc-Expand-available-registers-layouts/20261019-125659
base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next
patch link: https://lore.kernel.org/r/20261019095705.91062-7-clamor95%40gmail.com
patch subject: [PATCH v3 6/7] drm/panel: Add Hitachi TX10D07VM0BAA MIPI DBI Type B panel driver
config: arm64-randconfig-1002-20261021 (https://download.01.org/0day-ci/archive/20261021/202610210605.HdtW8SAP-lkp@xxxxxxxxx/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 2c419645e808a6667eee9dbb16c828f77e2fd2f0)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261021/202610210605.HdtW8SAP-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610210605.HdtW8SAP-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/drm_mipi_dbi.c:79:17: warning: unused variable 'mipi_dbi_dcs_read_commands' [-Wunused-const-variable]
79 | static const u8 mipi_dbi_dcs_read_commands[] = {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
vim +/mipi_dbi_dcs_read_commands +79 drivers/gpu/drm/drm_mipi_dbi.c
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 78
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 @79 static const u8 mipi_dbi_dcs_read_commands[] = {
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 80 MIPI_DCS_GET_DISPLAY_ID,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 81 MIPI_DCS_GET_RED_CHANNEL,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 82 MIPI_DCS_GET_GREEN_CHANNEL,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 83 MIPI_DCS_GET_BLUE_CHANNEL,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 84 MIPI_DCS_GET_DISPLAY_STATUS,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 85 MIPI_DCS_GET_POWER_MODE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 86 MIPI_DCS_GET_ADDRESS_MODE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 87 MIPI_DCS_GET_PIXEL_FORMAT,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 88 MIPI_DCS_GET_DISPLAY_MODE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 89 MIPI_DCS_GET_SIGNAL_MODE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 90 MIPI_DCS_GET_DIAGNOSTIC_RESULT,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 91 MIPI_DCS_READ_MEMORY_START,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 92 MIPI_DCS_READ_MEMORY_CONTINUE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 93 MIPI_DCS_GET_SCANLINE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 94 MIPI_DCS_GET_DISPLAY_BRIGHTNESS,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 95 MIPI_DCS_GET_CONTROL_DISPLAY,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 96 MIPI_DCS_GET_POWER_SAVE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 97 MIPI_DCS_GET_CABC_MIN_BRIGHTNESS,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 98 MIPI_DCS_READ_DDB_START,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 99 MIPI_DCS_READ_DDB_CONTINUE,
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 100 0, /* sentinel */
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 101 };
02dd95fe316936 drivers/gpu/drm/tinydrm/mipi-dbi.c Noralf Trønnes 2017-01-22 102
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