Re: [PATCH v5 6/6] phy: qcom: snps-femto-v2: Add IPQ9650 support

From: kernel test robot <lkp@intel.com>
To: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>,
	Vinod Koul <vkoul@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Manivannan Sadhasivam <mani@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Wesley Cheng <quic_wcheng@quicinc.com>,
	Manu Gautam <mgautam@codeaurora.org>,
	Stephen Boyd <sboyd@kernel.org>,
	Philipp Zabel <pza@pengutronix.de>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>
Subject: Re: [PATCH v5 6/6] phy: qcom: snps-femto-v2: Add IPQ9650 support
Date: Wed, 7 Oct 2026 19:00:01 +0800	[thread overview]
Message-ID: <202610071844.6m37sk3H-lkp@intel.com> (raw)
In-Reply-To: <20261006-phy-v5-6-cbe9330a6449@oss.qualcomm.com>

Hi Varadarajan,

kernel test robot noticed the following build errors:

[auto build test ERROR on 15551282e82db772bfc862f96a8abf14a60f4ea5]

url:    https://github.com/intel-lab-lkp/linux/commits/Varadarajan-Narayanan/dt-bindings-phy-qcom-qmp-usb-Add-IPQ9650-USB3-PHY/20261006-105915
base:   15551282e82db772bfc862f96a8abf14a60f4ea5
patch link:    https://lore.kernel.org/r/20261006-phy-v5-6-cbe9330a6449%40oss.qualcomm.com
patch subject: [PATCH v5 6/6] phy: qcom: snps-femto-v2: Add IPQ9650 support
config: x86_64-buildonly-randconfig-1001-20261007 (https://download.01.org/0day-ci/archive/20261007/202610071844.6m37sk3H-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261007/202610071844.6m37sk3H-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/202610071844.6m37sk3H-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:449:53: error: call to undeclared function 'FIELD_PREP_CONST'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     449 |         { USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, FSEL_MASK, FSEL_24MHZ },
         |                                                            ^
   drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:39:23: note: expanded from macro 'FSEL_24MHZ'
      39 | #define FSEL_24MHZ                              FIELD_PREP_CONST(FSEL_MASK, 2)
         |                                                 ^
>> drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:449:53: error: initializer element is not a compile-time constant
     449 |         { USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, FSEL_MASK, FSEL_24MHZ },
         |                                                            ^~~~~~~~~~
   drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:39:23: note: expanded from macro 'FSEL_24MHZ'
      39 | #define FSEL_24MHZ                              FIELD_PREP_CONST(FSEL_MASK, 2)
         |                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.

vim +/FIELD_PREP_CONST +449 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c

   444	
   445	static const struct phy_reg_config hs_6nm_phy_pre_tuning[] = {
   446		{ USB2_PHY_USB_PHY_CFG0, UTMI_PHY_CMN_CTRL_OVERRIDE_EN, UTMI_PHY_CMN_CTRL_OVERRIDE_EN },
   447		{ USB2_PHY_USB_PHY_UTMI_CTRL5, POR, POR },
   448		{ USB2_PHY_USB_PHY_FSEL_SEL, FSEL_SEL, FSEL_SEL },
 > 449		{ USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, FSEL_MASK, FSEL_24MHZ },
   450		{ USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1, PLLBTUNE, PLLBTUNE },
   451		{ USB2_PHY_USB_PHY_REFCLK_CTRL, REFCLK_SEL_MASK, REFCLK_SEL_DEFAULT },
   452		{ USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1, VBUSVLDEXTSEL0, VBUSVLDEXTSEL0 },
   453		{ USB2_PHY_USB_PHY_HS_PHY_CTRL1, VBUSVLDEXT0, VBUSVLDEXT0 },
   454	};
   455	

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