Messages in this thread |  | | Date | Fri, 3 Apr 2026 16:39:11 +0800 | | From | kernel test robot <> | | Subject | Re: [PATCH v2 02/12] drm/bridge: tc358762: Improce SYSCTRL register defines |
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Hi Tomi,
kernel test robot noticed the following build errors:
[auto build test ERROR on 11439c4635edd669ae435eec308f4ab8a0804808]
url: https://github.com/intel-lab-lkp/linux/commits/Tomi-Valkeinen/drm-bridge-tc358762-Clean-up-register-defines/20260328-164947 base: 11439c4635edd669ae435eec308f4ab8a0804808 patch link: https://lore.kernel.org/r/20260327-tc358762-fixes-v2-2-3589d3c45f4a%40ideasonboard.com patch subject: [PATCH v2 02/12] drm/bridge: tc358762: Improce SYSCTRL register defines config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20260402/202604021223.FtCNpGqO-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260402/202604021223.FtCNpGqO-lkp@intel.com/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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202604021223.FtCNpGqO-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/gpu/drm/bridge/tc358762.c:154:10: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 154 | FIELD_PREP(SYSCTRL_DPIDATA_IO_MASK, SYSCTRL_DPIDATA_IO_4MA) | | ^ 1 error generated.
vim +/FIELD_PREP +154 drivers/gpu/drm/bridge/tc358762.c
127 128 static int tc358762_init(struct tc358762 *ctx) 129 { 130 u32 lcdctrl; 131 132 tc358762_write(ctx, DSI_LANEENABLE, 133 DSI_LANEENABLE_L0EN | DSI_LANEENABLE_CLEN); 134 tc358762_write(ctx, PPI_D0S_CLRSIPOCOUNT, 5); 135 tc358762_write(ctx, PPI_D1S_CLRSIPOCOUNT, 5); 136 tc358762_write(ctx, PPI_D0S_ATMR, 0); 137 tc358762_write(ctx, PPI_D1S_ATMR, 0); 138 tc358762_write(ctx, PPI_LPTXTIMECNT, LPX_PERIOD); 139 140 tc358762_write(ctx, SPICMR, 0x00); 141 142 lcdctrl = LCDCTRL_VSDELAY(1) | LCDCTRL_RGB888 | 143 LCDCTRL_UNK6 | LCDCTRL_VTGEN; 144 145 if (ctx->mode.flags & DRM_MODE_FLAG_NHSYNC) 146 lcdctrl |= LCDCTRL_HSPOL; 147 148 if (ctx->mode.flags & DRM_MODE_FLAG_NVSYNC) 149 lcdctrl |= LCDCTRL_VSPOL; 150 151 tc358762_write(ctx, LCDCTRL, lcdctrl); 152 153 tc358762_write(ctx, SYSCTRL, > 154 FIELD_PREP(SYSCTRL_DPIDATA_IO_MASK, SYSCTRL_DPIDATA_IO_4MA) | 155 FIELD_PREP(SYSCTRL_DPISTB_IO_MASK, SYSCTRL_DPISTB_IO_4MA) | 156 FIELD_PREP(SYSCTRL_PCLKDIV_MASK, SYSCTRL_PCLKDIV_DIV_3)); 157 158 msleep(100); 159 160 tc358762_write(ctx, PPI_STARTPPI, PPI_STARTPPI_STARTPPI); 161 tc358762_write(ctx, DSI_STARTDSI, DSI_STARTDSI_STARTDSI); 162 163 msleep(100); 164 165 return tc358762_clear_error(ctx); 166 } 167
-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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