tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 986b386cc5a4100995a114d3de51d1222bdfba6a commit: 187393e78ebbcae9368b8abbb3bc753ea9176cbe [79/92] UPSTREAM: phy: mediatek: Move mtk_hdmi_phy driver into drivers/phy/mediatek folder config: arm64-randconfig-r016-20210214 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.4 git checkout 187393e78ebbcae9368b8abbb3bc753ea9176cbe # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const u8 PREDIV[3][4] = { ^ static const u8 TXDIV[3][4] = { ^ static const u8 FBKSEL[3][4] = { ^ static const u8 FBKDIV[3][4] = { ^ static const u8 DIVEN[3][4] = { ^ static const u8 HTPLLBP[3][4] = { ^ static const u8 HTPLLBC[3][4] = { ^ static const u8 HTPLLBR[3][4] = { ^ 8 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_SOC_MT6359 Depends on SOUND && !UML && SND && SND_SOC && MTK_PMIC_WRAP Selected by - SND_SOC_MT8192_MT6359_RT1015_RT5682 && SOUND && !UML && SND && SND_SOC && I2C && SND_SOC_MT8192 vim +/PREDIV +110 drivers/phy/mediatek/phy-mtk-hdmi-mt8173.c 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 109 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @110 static const u8 PREDIV[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 111 {0x0, 0x0, 0x0, 0x0}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 112 {0x1, 0x1, 0x1, 0x1}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 113 {0x1, 0x1, 0x1, 0x1} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 114 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 115 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @116 static const u8 TXDIV[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 117 {0x3, 0x3, 0x3, 0x2}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 118 {0x2, 0x1, 0x1, 0x1}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 119 {0x1, 0x0, 0x0, 0x0} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 120 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 121 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @122 static const u8 FBKSEL[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 123 {0x1, 0x1, 0x1, 0x1}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 124 {0x1, 0x0, 0x1, 0x1}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 125 {0x1, 0x0, 0x1, 0x1} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 126 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 127 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @128 static const u8 FBKDIV[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 129 {19, 24, 29, 19}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 130 {19, 24, 14, 19}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 131 {19, 24, 14, 19} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 132 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 133 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @134 static const u8 DIVEN[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 135 {0x2, 0x1, 0x1, 0x2}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 136 {0x2, 0x2, 0x2, 0x2}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 137 {0x2, 0x2, 0x2, 0x2} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 138 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 139 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @140 static const u8 HTPLLBP[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 141 {0xc, 0xc, 0x8, 0xc}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 142 {0xc, 0xf, 0xf, 0xc}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 143 {0xc, 0xf, 0xf, 0xc} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 144 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 145 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @146 static const u8 HTPLLBC[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 147 {0x2, 0x3, 0x3, 0x2}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 148 {0x2, 0x3, 0x3, 0x2}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 149 {0x2, 0x3, 0x3, 0x2} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 150 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 151 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 @152 static const u8 HTPLLBR[3][4] = { 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 153 {0x1, 0x1, 0x0, 0x1}, /* 27Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 154 {0x1, 0x2, 0x2, 0x1}, /* 74Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 155 {0x1, 0x2, 0x2, 0x1} /* 148Mhz */ 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 156 }; 8f83f26891e125 drivers/gpu/drm/mediatek/mtk_mt8173_hdmi_phy.c Jie Qiu 2016-01-04 157 :::::: The code at line 110 was first introduced by commit :::::: 8f83f26891e12570780dcfc8ae376b655915ff6d drm/mediatek: Add HDMI support :::::: TO: Jie Qiu <jie.qiu(a)mediatek.com&gt; :::::: CC: Philipp Zabel <p.zabel(a)pengutronix.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org