| Message ID | 20221025054233.9763-2-chunfeng.yun@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RESEND,v3,1/2] phy: core: add debugfs root | expand |
Hi Chunfeng,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v6.1-rc2 next-20221028]
[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/Chunfeng-Yun/phy-core-add-debugfs-root/20221025-134424
patch link: https://lore.kernel.org/r/20221025054233.9763-2-chunfeng.yun%40mediatek.com
patch subject: [PATCH RESEND v3 2/2] phy: mediatek: tphy: add debugfs files
config: powerpc-allyesconfig
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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 powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://github.com/intel-lab-lkp/linux/commit/6dae09cf2d77be80664d0ec84f631c6282fdb728
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Chunfeng-Yun/phy-core-add-debugfs-root/20221025-134424
git checkout 6dae09cf2d77be80664d0ec84f631c6282fdb728
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/phy/mediatek/ drivers/staging/rtl8723bs/ drivers/tty/serial/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:479:4: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(u2_banks->misc + U3P_MISC_REG1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:484:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:488:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_DISCTH, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:492:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_PRE_EMP, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
>> drivers/phy/mediatek/phy-mtk-tphy.c:556:2: warning: variable 'val' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
default:
^~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:561:45: note: uninitialized use occurs here
seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max);
^~~
drivers/phy/mediatek/phy-mtk-tphy.c:524:9: note: initialize the variable 'val' to silence this warning
u32 val, tmp, max;
^
= 0
>> drivers/phy/mediatek/phy-mtk-tphy.c:556:2: warning: variable 'max' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
default:
^~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:561:50: note: uninitialized use occurs here
seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max);
^~~
drivers/phy/mediatek/phy-mtk-tphy.c:524:19: note: initialize the variable 'max' to silence this warning
u32 val, tmp, max;
^
= 0
drivers/phy/mediatek/phy-mtk-tphy.c:593:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(phyd + U3P_U3_PHYD_RSV,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:598:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(u3_banks->phya + U3P_U3_PHYA_REG0, P3A_RG_IEXT_INTR, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:602:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_TX_IMPEL, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:607:3: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_RX_IMPEL, val);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro 'mtk_phy_update_field'
mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \
^~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:71:53: note: expanded from macro '__BF_FIELD_CHECK'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:357:22: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:345:23: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:337:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
drivers/phy/mediatek/phy-mtk-tphy.c:785:2: warning: result of comparison of constant 18446744073709551615 with expression of type 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: (unsigned char)0, signed char: (unsigned char)0, unsigned short: (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: (unsigned long)0, unsigned long long: (unsigned long long)0, long long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned long') is always false [-Wtautological-constant-out-of-range-compare]
mtk_phy_update_field(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCTRL,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/val +556 drivers/phy/mediatek/phy-mtk-tphy.c
518
519 static int u3_phy_params_show(struct seq_file *sf, void *unused)
520 {
521 struct mtk_phy_instance *inst = sf->private;
522 const char *fname = file_dentry(sf->file)->d_iname;
523 struct u3phy_banks *u3_banks = &inst->u3_banks;
524 u32 val, tmp, max;
525 int ret;
526
527 ret = match_string(u3_phy_files, ARRAY_SIZE(u3_phy_files), fname);
528 if (ret < 0)
529 return ret;
530
531 switch (ret) {
532 case U3P_EFUSE_EN:
533 tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RSV);
534 val = !!(tmp & P3D_RG_EFUSE_AUTO_LOAD_DIS);
535 max = 1;
536 break;
537
538 case U3P_EFUSE_INTR:
539 tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG0);
540 val = FIELD_GET(P3A_RG_IEXT_INTR, tmp);
541 max = FIELD_MAX(P3A_RG_IEXT_INTR);
542 break;
543
544 case U3P_EFUSE_TX_IMP:
545 tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0);
546 val = FIELD_GET(P3D_RG_TX_IMPEL, tmp);
547 max = FIELD_MAX(P3D_RG_TX_IMPEL);
548 break;
549
550 case U3P_EFUSE_RX_IMP:
551 tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1);
552 val = FIELD_GET(P3D_RG_RX_IMPEL, tmp);
553 max = FIELD_MAX(P3D_RG_RX_IMPEL);
554 break;
555
> 556 default:
557 seq_printf(sf, "invalid, %d\n", ret);
558 break;
559 }
560
561 seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max);
562
563 return 0;
564 }
565
On Sat, 2022-10-29 at 08:46 +0800, kernel test robot wrote: > Hi Chunfeng, > > I love your patch! Perhaps something to improve: > > [auto build test WARNING on linus/master] > [also build test WARNING on v6.1-rc2 next-20221028] > [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://urldefense.com/v3/__https://git-scm.com/docs/git-format-patch*_base_tree_information__;Iw!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSolmkDxbL$ > ] > > url: > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux/commits/Chunfeng-Yun/phy-core-add-debugfs-root/20221025-134424__;!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSog09qFwS$ > > patch link: > https://lore.kernel.org/r/20221025054233.9763-2-chunfeng.yun%40mediatek.com > patch subject: [PATCH RESEND v3 2/2] phy: mediatek: tphy: add debugfs > files > config: powerpc-allyesconfig > compiler: clang version 16.0.0 ( > https://urldefense.com/v3/__https://github.com/llvm/llvm-project__;!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSoj8X7Pu_$ > $ 791a7ae1ba3efd6bca96338e10ffde557ba83920) > reproduce (this is a W=1 build): > wget > https://urldefense.com/v3/__https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross__;!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSont3c9j-$ > -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # install powerpc cross compiling tool for clang build > # apt-get install binutils-powerpc-linux-gnu > # > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux/commit/6dae09cf2d77be80664d0ec84f631c6282fdb728__;!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSoou8Is0N$ > > git remote add linux-review > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux__;!!CTRNKA9wMg0ARbw!z3s2-V0HQmy7WniZmIk27fAkjJ-SWgBBh_9yIedH9eC1yz0opmDxTk9SKAYSovcqtevR$ > > git fetch --no-tags linux-review Chunfeng-Yun/phy-core-add- > debugfs-root/20221025-134424 > git checkout 6dae09cf2d77be80664d0ec84f631c6282fdb728 > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross > W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/phy/mediatek/ > drivers/staging/rtl8723bs/ drivers/tty/serial/ > > If you fix the issue, kindly add following tag where applicable > > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:479:4: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(u2_banks->misc + > U3P_MISC_REG1, > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:484:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(com + U3P_USBPHYACR1, > PA1_RG_INTR_CAL, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:488:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(com + U3P_USBPHYACR6, > PA6_RG_U2_DISCTH, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:492:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(com + U3P_USBPHYACR6, > PA6_RG_U2_PRE_EMP, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > > > drivers/phy/mediatek/phy-mtk-tphy.c:556:2: warning: variable > > > 'val' is used uninitialized whenever switch default is taken [- > > > Wsometimes-uninitialized] > > default: > ^~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:561:45: note: uninitialized > use occurs here > seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max); > ^~~ > drivers/phy/mediatek/phy-mtk-tphy.c:524:9: note: initialize the > variable 'val' to silence this warning > u32 val, tmp, max; > ^ > = 0 > > > drivers/phy/mediatek/phy-mtk-tphy.c:556:2: warning: variable > > > 'max' is used uninitialized whenever switch default is taken [- > > > Wsometimes-uninitialized] > > default: > ^~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:561:50: note: uninitialized > use occurs here > seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max); > ^~~ > drivers/phy/mediatek/phy-mtk-tphy.c:524:19: note: initialize the > variable 'max' to silence this warning > u32 val, tmp, max; > ^ > = 0 > drivers/phy/mediatek/phy-mtk-tphy.c:593:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(phyd + U3P_U3_PHYD_RSV, > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:598:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(u3_banks->phya + > U3P_U3_PHYA_REG0, P3A_RG_IEXT_INTR, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:602:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL0, > P3D_RG_TX_IMPEL, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:607:3: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL1, > P3D_RG_RX_IMPEL, val); > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~~~~~~ > drivers/phy/mediatek/phy-mtk-io.h:43:34: note: expanded from macro > 'mtk_phy_update_field' > mtk_phy_update_bits(reg, mask_, FIELD_PREP(mask_, val)); \ > ^~~~~~~~~~~~~~~~~~~~~~ > include/linux/bitfield.h:114:3: note: expanded from macro > 'FIELD_PREP' > __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: > "); \ > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~ > include/linux/bitfield.h:71:53: note: expanded from macro > '__BF_FIELD_CHECK' > BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) > > \ > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ^~~~~~~ > note: (skipping 1 expansions in backtrace; use -fmacro-backtrace- > limit=0 to see all) > include/linux/compiler_types.h:357:22: note: expanded from macro > 'compiletime_assert' > _compiletime_assert(condition, msg, __compiletime_assert_, > __COUNTER__) > ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~ > include/linux/compiler_types.h:345:23: note: expanded from macro > '_compiletime_assert' > __compiletime_assert(condition, msg, prefix, suffix) > ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > include/linux/compiler_types.h:337:9: note: expanded from macro > '__compiletime_assert' > if > (!(condition)) \ > ^~~~~~~~~ > drivers/phy/mediatek/phy-mtk-tphy.c:785:2: warning: result of > comparison of constant 18446744073709551615 with expression of type > 'typeof (_Generic((mask_), char: (unsigned char)0, unsigned char: > (unsigned char)0, signed char: (unsigned char)0, unsigned short: > (unsigned short)0, short: (unsigned short)0, unsigned int: (unsigned > int)0, int: (unsigned int)0, unsigned long: (unsigned long)0, long: > (unsigned long)0, unsigned long long: (unsigned long long)0, long > long: (unsigned long long)0, default: (mask_)))' (aka 'unsigned > long') is always false [-Wtautological-constant-out-of-range-compare] > mtk_phy_update_field(com + U3P_USBPHYACR5, > PA5_RG_U2_HSTX_SRCTRL, > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~ > > > vim +/val +556 drivers/phy/mediatek/phy-mtk-tphy.c > > 518 > 519 static int u3_phy_params_show(struct seq_file *sf, void > *unused) > 520 { > 521 struct mtk_phy_instance *inst = sf->private; > 522 const char *fname = file_dentry(sf->file)- > >d_iname; > 523 struct u3phy_banks *u3_banks = &inst->u3_banks; > 524 u32 val, tmp, max; > 525 int ret; > 526 > 527 ret = match_string(u3_phy_files, > ARRAY_SIZE(u3_phy_files), fname); > 528 if (ret < 0) > 529 return ret; > 530 > 531 switch (ret) { > 532 case U3P_EFUSE_EN: > 533 tmp = readl(u3_banks->phyd + > U3P_U3_PHYD_RSV); > 534 val = !!(tmp & > P3D_RG_EFUSE_AUTO_LOAD_DIS); > 535 max = 1; > 536 break; > 537 > 538 case U3P_EFUSE_INTR: > 539 tmp = readl(u3_banks->phya + > U3P_U3_PHYA_REG0); > 540 val = FIELD_GET(P3A_RG_IEXT_INTR, tmp); > 541 max = FIELD_MAX(P3A_RG_IEXT_INTR); > 542 break; > 543 > 544 case U3P_EFUSE_TX_IMP: > 545 tmp = readl(u3_banks->phyd + > U3P_U3_PHYD_IMPCAL0); > 546 val = FIELD_GET(P3D_RG_TX_IMPEL, tmp); > 547 max = FIELD_MAX(P3D_RG_TX_IMPEL); > 548 break; > 549 > 550 case U3P_EFUSE_RX_IMP: > 551 tmp = readl(u3_banks->phyd + > U3P_U3_PHYD_IMPCAL1); > 552 val = FIELD_GET(P3D_RG_RX_IMPEL, tmp); > 553 max = FIELD_MAX(P3D_RG_RX_IMPEL); > 554 break; > 555 > > 556 default: > 557 seq_printf(sf, "invalid, %d\n", ret); > 558 break; > 559 } > 560 > 561 seq_printf(sf, "%s : %d [0, %d]\n", fname, val, > max); > 562 > 563 return 0; > 564 } > 565 > I'll send a new version patch to fix the warnings; Thanks
diff --git a/drivers/phy/mediatek/Kconfig b/drivers/phy/mediatek/Kconfig index 3125ecb5d119..e9fdfe9f519f 100644 --- a/drivers/phy/mediatek/Kconfig +++ b/drivers/phy/mediatek/Kconfig @@ -27,6 +27,11 @@ config PHY_MTK_TPHY multi-ports is first version, otherwise is second version, so you can easily distinguish them by banks layout. +config PHY_MTK_TPHY_DEBUGFS + bool "Add T-PHY Debugfs Files" + help + Say Y here to add debugfs files mainly for T-PHY HQA test. + config PHY_MTK_UFS tristate "MediaTek UFS M-PHY driver" depends on ARCH_MEDIATEK || COMPILE_TEST diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c index e906a82791bd..99677665a9c4 100644 --- a/drivers/phy/mediatek/phy-mtk-tphy.c +++ b/drivers/phy/mediatek/phy-mtk-tphy.c @@ -7,6 +7,7 @@ #include <dt-bindings/phy/phy.h> #include <linux/clk.h> +#include <linux/debugfs.h> #include <linux/delay.h> #include <linux/iopoll.h> #include <linux/mfd/syscon.h> @@ -264,6 +265,8 @@ #define TPHY_CLKS_CNT 2 +#define USER_BUF_LEN(count) min_t(size_t, 8, (count)) + enum mtk_phy_version { MTK_PHY_V1 = 1, MTK_PHY_V2, @@ -310,6 +313,7 @@ struct mtk_phy_instance { struct clk_bulk_data clks[TPHY_CLKS_CNT]; u32 index; u32 type; + struct dentry *dbgfs; struct regmap *type_sw; u32 type_sw_reg; u32 type_sw_index; @@ -332,10 +336,389 @@ struct mtk_tphy { const struct mtk_phy_pdata *pdata; struct mtk_phy_instance **phys; int nphys; + struct dentry *dbgfs_root; int src_ref_clk; /* MHZ, reference clock for slew rate calibrate */ int src_coef; /* coefficient for slew rate calibrate */ }; +#if IS_ENABLED(CONFIG_PHY_MTK_TPHY_DEBUGFS) + +enum u2_phy_params { + U2P_EYE_VRT = 0, + U2P_EYE_TERM, + U2P_EFUSE_EN, + U2P_EFUSE_INTR, + U2P_DISCTH, + U2P_PRE_EMPHASIS, +}; + +enum u3_phy_params { + U3P_EFUSE_EN = 0, + U3P_EFUSE_INTR, + U3P_EFUSE_TX_IMP, + U3P_EFUSE_RX_IMP, +}; + +static const char *const u2_phy_files[] = { + [U2P_EYE_VRT] = "vrt", + [U2P_EYE_TERM] = "term", + [U2P_EFUSE_EN] = "efuse", + [U2P_EFUSE_INTR] = "intr", + [U2P_DISCTH] = "discth", + [U2P_PRE_EMPHASIS] = "preemph", +}; + +static const char *const u3_phy_files[] = { + [U3P_EFUSE_EN] = "efuse", + [U3P_EFUSE_INTR] = "intr", + [U3P_EFUSE_TX_IMP] = "tx-imp", + [U3P_EFUSE_RX_IMP] = "rx-imp", +}; + +static int u2_phy_params_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + const char *fname = file_dentry(sf->file)->d_iname; + struct u2phy_banks *u2_banks = &inst->u2_banks; + void __iomem *com = u2_banks->com; + u32 max = 0; + u32 tmp = 0; + u32 val = 0; + int ret; + + ret = match_string(u2_phy_files, ARRAY_SIZE(u2_phy_files), fname); + if (ret < 0) + return ret; + + switch (ret) { + case U2P_EYE_VRT: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_VRT_SEL, tmp); + max = FIELD_MAX(PA1_RG_VRT_SEL); + break; + + case U2P_EYE_TERM: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_TERM_SEL, tmp); + max = FIELD_MAX(PA1_RG_TERM_SEL); + break; + + case U2P_EFUSE_EN: + if (u2_banks->misc) { + tmp = readl(u2_banks->misc + U3P_MISC_REG1); + max = 1; + } + + val = !!(tmp & MR1_EFUSE_AUTO_LOAD_DIS); + break; + + case U2P_EFUSE_INTR: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_INTR_CAL, tmp); + max = FIELD_MAX(PA1_RG_INTR_CAL); + break; + + case U2P_DISCTH: + tmp = readl(com + U3P_USBPHYACR6); + val = FIELD_GET(PA6_RG_U2_DISCTH, tmp); + max = FIELD_MAX(PA6_RG_U2_DISCTH); + break; + + case U2P_PRE_EMPHASIS: + tmp = readl(com + U3P_USBPHYACR6); + val = FIELD_GET(PA6_RG_U2_PRE_EMP, tmp); + max = FIELD_MAX(PA6_RG_U2_PRE_EMP); + break; + + default: + seq_printf(sf, "invalid, %d\n", ret); + break; + } + + seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max); + + return 0; +} + +static int u2_phy_params_open(struct inode *inode, struct file *file) +{ + return single_open(file, u2_phy_params_show, inode->i_private); +} + +static ssize_t u2_phy_params_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + const char *fname = file_dentry(file)->d_iname; + struct seq_file *sf = file->private_data; + struct mtk_phy_instance *inst = sf->private; + struct u2phy_banks *u2_banks = &inst->u2_banks; + void __iomem *com = u2_banks->com; + ssize_t rc; + u32 val; + int ret; + + rc = kstrtouint_from_user(ubuf, USER_BUF_LEN(count), 0, &val); + if (rc) + return rc; + + ret = match_string(u2_phy_files, ARRAY_SIZE(u2_phy_files), fname); + if (ret < 0) + return (ssize_t)ret; + + switch (ret) { + case U2P_EYE_VRT: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_VRT_SEL, val); + break; + + case U2P_EYE_TERM: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_TERM_SEL, val); + break; + + case U2P_EFUSE_EN: + if (u2_banks->misc) + mtk_phy_update_field(u2_banks->misc + U3P_MISC_REG1, + MR1_EFUSE_AUTO_LOAD_DIS, !!val); + break; + + case U2P_EFUSE_INTR: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, val); + break; + + case U2P_DISCTH: + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_DISCTH, val); + break; + + case U2P_PRE_EMPHASIS: + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_PRE_EMP, val); + break; + + default: + break; + } + + return count; +} + +static const struct file_operations u2_phy_fops = { + .open = u2_phy_params_open, + .write = u2_phy_params_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void u2_phy_dbgfs_files_create(struct mtk_phy_instance *inst) +{ + u32 count = ARRAY_SIZE(u2_phy_files); + int i; + + for (i = 0; i < count; i++) + debugfs_create_file(u2_phy_files[i], 0644, inst->dbgfs, inst, &u2_phy_fops); +} + +static int u3_phy_params_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + const char *fname = file_dentry(sf->file)->d_iname; + struct u3phy_banks *u3_banks = &inst->u3_banks; + u32 val, tmp, max; + int ret; + + ret = match_string(u3_phy_files, ARRAY_SIZE(u3_phy_files), fname); + if (ret < 0) + return ret; + + switch (ret) { + case U3P_EFUSE_EN: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RSV); + val = !!(tmp & P3D_RG_EFUSE_AUTO_LOAD_DIS); + max = 1; + break; + + case U3P_EFUSE_INTR: + tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG0); + val = FIELD_GET(P3A_RG_IEXT_INTR, tmp); + max = FIELD_MAX(P3A_RG_IEXT_INTR); + break; + + case U3P_EFUSE_TX_IMP: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0); + val = FIELD_GET(P3D_RG_TX_IMPEL, tmp); + max = FIELD_MAX(P3D_RG_TX_IMPEL); + break; + + case U3P_EFUSE_RX_IMP: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1); + val = FIELD_GET(P3D_RG_RX_IMPEL, tmp); + max = FIELD_MAX(P3D_RG_RX_IMPEL); + break; + + default: + seq_printf(sf, "invalid, %d\n", ret); + break; + } + + seq_printf(sf, "%s : %d [0, %d]\n", fname, val, max); + + return 0; +} + +static int u3_phy_params_open(struct inode *inode, struct file *file) +{ + return single_open(file, u3_phy_params_show, inode->i_private); +} + +static ssize_t u3_phy_params_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + const char *fname = file_dentry(file)->d_iname; + struct seq_file *sf = file->private_data; + struct mtk_phy_instance *inst = sf->private; + struct u3phy_banks *u3_banks = &inst->u3_banks; + void __iomem *phyd = u3_banks->phyd; + ssize_t rc; + u32 val; + int ret; + + rc = kstrtouint_from_user(ubuf, USER_BUF_LEN(count), 0, &val); + if (rc) + return rc; + + ret = match_string(u3_phy_files, ARRAY_SIZE(u3_phy_files), fname); + if (ret < 0) + return (ssize_t)ret; + + switch (ret) { + case U3P_EFUSE_EN: + mtk_phy_update_field(phyd + U3P_U3_PHYD_RSV, + P3D_RG_EFUSE_AUTO_LOAD_DIS, !!val); + break; + + case U3P_EFUSE_INTR: + mtk_phy_update_field(u3_banks->phya + U3P_U3_PHYA_REG0, P3A_RG_IEXT_INTR, val); + break; + + case U3P_EFUSE_TX_IMP: + mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_TX_IMPEL, val); + mtk_phy_set_bits(phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_FORCE_TX_IMPEL); + break; + + case U3P_EFUSE_RX_IMP: + mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_RX_IMPEL, val); + mtk_phy_set_bits(phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_FORCE_RX_IMPEL); + break; + + default: + break; + } + + return count; +} + +static const struct file_operations u3_phy_fops = { + .open = u3_phy_params_open, + .write = u3_phy_params_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void u3_phy_dbgfs_files_create(struct mtk_phy_instance *inst) +{ + u32 count = ARRAY_SIZE(u3_phy_files); + int i; + + for (i = 0; i < count; i++) + debugfs_create_file(u3_phy_files[i], 0644, inst->dbgfs, inst, &u3_phy_fops); +} + +static int tphy_type_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + const char *type; + + switch (inst->type) { + case PHY_TYPE_USB2: + type = "USB2"; + break; + case PHY_TYPE_USB3: + type = "USB3"; + break; + case PHY_TYPE_PCIE: + type = "PCIe"; + break; + case PHY_TYPE_SGMII: + type = "SGMII"; + break; + case PHY_TYPE_SATA: + type = "SATA"; + break; + default: + type = ""; + } + + seq_printf(sf, "%s\n", type); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(tphy_type); + +static void tphy_debugfs_init(struct mtk_tphy *tphy, struct mtk_phy_instance *inst) +{ + char name[16]; + + snprintf(name, sizeof(name) - 1, "phy.%d", inst->index); + inst->dbgfs = debugfs_create_dir(name, tphy->dbgfs_root); + + debugfs_create_file("type", 0444, inst->dbgfs, inst, &tphy_type_fops); + + switch (inst->type) { + case PHY_TYPE_USB2: + u2_phy_dbgfs_files_create(inst); + break; + case PHY_TYPE_USB3: + case PHY_TYPE_PCIE: + u3_phy_dbgfs_files_create(inst); + break; + default: + break; + } +} + +static void tphy_debugfs_exit(struct mtk_phy_instance *inst) +{ + debugfs_remove_recursive(inst->dbgfs); + inst->dbgfs = NULL; +} + +static void tphy_debugfs_root_create(struct mtk_tphy *tphy) +{ + tphy->dbgfs_root = debugfs_create_dir(dev_name(tphy->dev), phy_debug_root); +} + +static void tphy_debugfs_root_remove(struct mtk_tphy *tphy) +{ + debugfs_remove_recursive(tphy->dbgfs_root); + tphy->dbgfs_root = NULL; +} + +#else + +static void tphy_debugfs_init(struct mtk_tphy *tphy, struct mtk_phy_instance *inst) +{} + +static void tphy_debugfs_exit(struct mtk_phy_instance *inst) +{} + +static void tphy_debugfs_root_create(struct mtk_tphy *tphy) +{} + +static void tphy_debugfs_root_remove(struct mtk_tphy *tphy) +{} + +#endif + static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { @@ -1032,6 +1415,8 @@ static int mtk_phy_init(struct phy *phy) return -EINVAL; } + tphy_debugfs_init(tphy, instance); + return 0; } @@ -1068,6 +1453,8 @@ static int mtk_phy_exit(struct phy *phy) struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); + tphy_debugfs_exit(instance); + if (instance->type == PHY_TYPE_USB2) u2_phy_instance_exit(tphy, instance); @@ -1295,15 +1682,29 @@ static int mtk_tphy_probe(struct platform_device *pdev) } provider = devm_of_phy_provider_register(dev, mtk_phy_xlate); + if (IS_ERR(provider)) + return dev_err_probe(dev, PTR_ERR(provider), "probe failed\n"); + + tphy_debugfs_root_create(tphy); + return 0; - return PTR_ERR_OR_ZERO(provider); put_child: of_node_put(child_np); return retval; } +static int mtk_tphy_remove(struct platform_device *pdev) +{ + struct mtk_tphy *tphy; + + tphy = platform_get_drvdata(pdev); + tphy_debugfs_root_remove(tphy); + return 0; +} + static struct platform_driver mtk_tphy_driver = { .probe = mtk_tphy_probe, + .remove = mtk_tphy_remove, .driver = { .name = "mtk-tphy", .of_match_table = mtk_tphy_id_table,
These debugfs files are mainly used to make eye diagram test easier, especially helpful to do HQA test for a new IC without efuse enabled. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- v3: fix typo of "debugfs" suggested by AngeloGioacchino v2: add CONFIG_PHY_MTK_TPHY_DEBUGFS suggested by AngeloGioacchino --- drivers/phy/mediatek/Kconfig | 5 + drivers/phy/mediatek/phy-mtk-tphy.c | 403 +++++++++++++++++++++++++++- 2 files changed, 407 insertions(+), 1 deletion(-)