Hi Nagarjuna, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tegra/for-next] [also build test WARNING on robh/for-next v5.8-rc2 next-20200626] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Nagarjuna-Kristam/Tegra-XUSB-charger-detect-support/20200626-182459 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/phy/tegra/xusb-tegra210.c:1055:6: warning: no previous prototype for 'tegra210_usb2_pad_power_on' [-Wmissing-prototypes] 1055 | void tegra210_usb2_pad_power_on(struct phy *phy) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/phy/tegra/xusb-tegra210.c:1088:6: warning: no previous prototype for 'tegra210_usb2_pad_power_down' [-Wmissing-prototypes] 1088 | void tegra210_usb2_pad_power_down(struct phy *phy) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/tegra210_usb2_pad_power_on +1055 drivers/phy/tegra/xusb-tegra210.c 1053 1054 /* must be called under padctl->lock */ > 1055 void tegra210_usb2_pad_power_on(struct phy *phy) 1056 { 1057 struct tegra_xusb_lane *lane = phy_get_drvdata(phy); 1058 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); 1059 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); 1060 struct tegra_xusb_padctl *padctl = lane->pad->padctl; 1061 unsigned int index = lane->index; 1062 u32 value; 1063 1064 if (!phy) 1065 return; 1066 1067 if (usb2->powered_on) 1068 return; 1069 1070 dev_info(padctl->dev, "power on UTMI pads %d\n", index); 1071 1072 tegra210_usb2_bias_pad_power_on(pad); 1073 1074 udelay(2); 1075 1076 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); 1077 value &= ~XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD; 1078 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); 1079 1080 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); 1081 value &= ~XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR; 1082 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); 1083 1084 usb2->powered_on = true; 1085 } 1086 1087 /* must be called under padctl->lock */ > 1088 void tegra210_usb2_pad_power_down(struct phy *phy) 1089 { 1090 struct tegra_xusb_lane *lane = phy_get_drvdata(phy); 1091 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); 1092 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); 1093 struct tegra_xusb_padctl *padctl = lane->pad->padctl; 1094 unsigned int index = lane->index; 1095 u32 value; 1096 1097 if (!phy) 1098 return; 1099 1100 if (!usb2->powered_on) 1101 return; 1102 1103 dev_info(padctl->dev, "power down UTMI pad %d\n", index); 1104 1105 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); 1106 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD; 1107 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); 1108 1109 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); 1110 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR; 1111 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); 1112 1113 udelay(2); 1114 1115 tegra210_usb2_bias_pad_power_off(pad); 1116 usb2->powered_on = false; 1117 } 1118 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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