[PATCH v4 2/2] phy: rockchip: Add Samsung MIPI D-/C-PHY driver

kernel test robot lkp at intel.com
Thu Nov 28 01:13:47 PST 2024


Hi Heiko,

kernel test robot noticed the following build errors:

[auto build test ERROR on rockchip/for-next]
[also build test ERROR on robh/for-next linus/master v6.12 next-20241128]
[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/Heiko-Stuebner/dt-bindings-phy-Add-Rockchip-MIPI-C-D-PHY-schema/20241128-100435
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git for-next
patch link:    https://lore.kernel.org/r/20241126131736.465111-3-heiko%40sntech.de
patch subject: [PATCH v4 2/2] phy: rockchip: Add Samsung MIPI D-/C-PHY driver
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20241128/202411281638.UyY41bPE-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241128/202411281638.UyY41bPE-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411281638.UyY41bPE-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:15:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:8:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:15:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:8:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:15:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:8:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   In file included from drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:15:
   In file included from include/linux/phy/phy.h:17:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:895:23: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     895 |                            I_MUX_SEL_MASK, I_MUX_SEL_400MV);
         |                                            ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:33:26: note: expanded from macro 'I_MUX_SEL_400MV'
      33 | #define I_MUX_SEL_400MV         I_MUX_SEL(0)
         |                                 ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:32:23: note: expanded from macro 'I_MUX_SEL'
      32 | #define I_MUX_SEL(x)            FIELD_PREP(I_MUX_SEL_MASK, x)
         |                                 ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:900:50: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     900 |         regmap_write(samsung->regmap, DPHY_MC_GNR_CON1, T_PHY_READY(0x2000));
         |                                                         ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:69:25: note: expanded from macro 'T_PHY_READY'
      69 | #define T_PHY_READY(x)          FIELD_PREP(GENMASK(15, 0), x)
         |                                 ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:945:7: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     945 |                            S(samsung->pll.scaler) | P(samsung->pll.prediv));
         |                            ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:40:16: note: expanded from macro 'S'
      40 | #define S(x)                    FIELD_PREP(S_MASK, x)
         |                                 ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:1116:8: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1116 |         val = EDGE_CON(7) | EDGE_CON_DIR(0) | EDGE_CON_EN |
         |               ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:71:22: note: expanded from macro 'EDGE_CON'
      71 | #define EDGE_CON(x)             FIELD_PREP(GENMASK(14, 12), x)
         |                                 ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:1170:8: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1170 |         val = EDGE_CON(7) | EDGE_CON_DIR(0) | EDGE_CON_EN |
         |               ^
   drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c:71:22: note: expanded from macro 'EDGE_CON'
      71 | #define EDGE_CON(x)             FIELD_PREP(GENMASK(14, 12), x)
         |                                 ^
   7 warnings and 5 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for MODVERSIONS
   Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y]
   Selected by [y]:
   - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y]
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]


vim +/FIELD_PREP +895 drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c

   881	
   882	static void samsung_mipi_dcphy_bias_block_enable(struct samsung_mipi_dcphy *samsung)
   883	{
   884		u32 bias_con2 = 0x3223;
   885	
   886		regmap_write(samsung->regmap, BIAS_CON0, 0x0010);
   887		regmap_write(samsung->regmap, BIAS_CON1, 0x0110);
   888		regmap_write(samsung->regmap, BIAS_CON2, bias_con2);
   889	
   890		/* default output voltage select:
   891		 * dphy: 400mv
   892		 * cphy: 530mv
   893		 */
   894		regmap_update_bits(samsung->regmap, BIAS_CON4,
 > 895				   I_MUX_SEL_MASK, I_MUX_SEL_400MV);
   896	}
   897	

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