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Date: Fri, 16 Dec 2022 03:59:53 +0800
From: kernel test robot <lkp@...el.com>
To: Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org, Vinod Koul <vkoul@...nel.org>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Subject: drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c:207:2: 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,...
Hi Chunfeng,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 041fae9c105ae342a4245cf1e0dc56a23fbb9d3c
commit: 84513eccd67804c02a0c42017bc7eaa4ad112478 phy: mediatek: fix build warning of FIELD_PREP()
date: 3 months ago
config: hexagon-randconfig-r045-20221215
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 98b13979fb05f3ed288a900deb843e7b27589e58)
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
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=84513eccd67804c02a0c42017bc7eaa4ad112478
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 84513eccd67804c02a0c42017bc7eaa4ad112478
# 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=hexagon SHELL=/bin/bash drivers/phy/mediatek/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c:207:2: 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(base + MIPITX_DSI_PLL_TOP,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
~~~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c:207:2: 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(base + MIPITX_DSI_PLL_TOP,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c:207:2: 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(base + MIPITX_DSI_PLL_TOP,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
3 warnings generated.
--
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:83:2: 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(base + MIPITX_PLL_CON1, RG_DSI_PLL_POSDIV, txdiv0);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
~~~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:83:2: 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(base + MIPITX_PLL_CON1, RG_DSI_PLL_POSDIV, txdiv0);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
>> drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:83:2: 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(base + MIPITX_PLL_CON1, RG_DSI_PLL_POSDIV, txdiv0);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:149:2: 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(base + MIPITX_VOLTAGE_SEL, RG_DSI_HSTX_LDO_REF_SEL,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
~~~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:149:2: 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(base + MIPITX_VOLTAGE_SEL, RG_DSI_HSTX_LDO_REF_SEL,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c:149:2: 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(base + MIPITX_VOLTAGE_SEL, RG_DSI_HSTX_LDO_REF_SEL,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:334:9: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
~~~~~~^~~~~~~~~~~
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
6 warnings generated.
vim +207 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 121
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 122 static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 123 {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 124 struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 125 void __iomem *base = mipi_tx->regs;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 126 u8 txdiv, txdiv0, txdiv1;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 127 u64 pcw;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 128
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 129 dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 130
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 131 if (mipi_tx->data_rate >= 500000000) {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 132 txdiv = 1;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 133 txdiv0 = 0;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 134 txdiv1 = 0;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 135 } else if (mipi_tx->data_rate >= 250000000) {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 136 txdiv = 2;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 137 txdiv0 = 1;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 138 txdiv1 = 0;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 139 } else if (mipi_tx->data_rate >= 125000000) {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 140 txdiv = 4;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 141 txdiv0 = 2;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 142 txdiv1 = 0;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 143 } else if (mipi_tx->data_rate > 62000000) {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 144 txdiv = 8;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 145 txdiv0 = 2;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 146 txdiv1 = 1;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 147 } else if (mipi_tx->data_rate >= 50000000) {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 148 txdiv = 16;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 149 txdiv0 = 2;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 150 txdiv1 = 2;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 151 } else {
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 152 return -EINVAL;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 153 }
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 154
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 155 mtk_phy_update_bits(base + MIPITX_DSI_BG_CON,
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 156 RG_DSI_VOUT_MSK | RG_DSI_BG_CKEN |
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 157 RG_DSI_BG_CORE_EN,
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 158 FIELD_PREP(RG_DSI_V02_SEL, 4) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 159 FIELD_PREP(RG_DSI_V032_SEL, 4) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 160 FIELD_PREP(RG_DSI_V04_SEL, 4) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 161 FIELD_PREP(RG_DSI_V072_SEL, 4) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 162 FIELD_PREP(RG_DSI_V10_SEL, 4) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 163 FIELD_PREP(RG_DSI_V12_SEL, 4) |
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 164 RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 165
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 166 usleep_range(30, 100);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 167
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 168 mtk_phy_update_bits(base + MIPITX_DSI_TOP_CON,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 169 RG_DSI_LNT_IMP_CAL_CODE | RG_DSI_LNT_HS_BIAS_EN,
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 170 FIELD_PREP(RG_DSI_LNT_IMP_CAL_CODE, 8) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 171 RG_DSI_LNT_HS_BIAS_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 172
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 173 mtk_phy_set_bits(base + MIPITX_DSI_CON,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 174 RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 175
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 176 mtk_phy_update_bits(base + MIPITX_DSI_PLL_PWR,
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 177 RG_DSI_MPPLL_SDM_PWR_ON | RG_DSI_MPPLL_SDM_ISO_EN,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 178 RG_DSI_MPPLL_SDM_PWR_ON);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 179
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 180 mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 181
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 182 mtk_phy_update_bits(base + MIPITX_DSI_PLL_CON0,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 183 RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 |
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 184 RG_DSI_MPPLL_PREDIV,
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 185 FIELD_PREP(RG_DSI_MPPLL_TXDIV0, txdiv0) |
993aa53ed076a9 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 186 FIELD_PREP(RG_DSI_MPPLL_TXDIV1, txdiv1));
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 187
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 188 /*
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 189 * PLL PCW config
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 190 * PCW bit 24~30 = integer part of pcw
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 191 * PCW bit 0~23 = fractional part of pcw
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 192 * pcw = data_Rate*4*txdiv/(Ref_clk*2);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 193 * Post DIV =4, so need data_Rate*4
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 194 * Ref_clk is 26MHz
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 195 */
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 196 pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24, 26000000);
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 197 writel(pcw, base + MIPITX_DSI_PLL_CON2);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 198
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 199 mtk_phy_set_bits(base + MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_FRA_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 200
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 201 mtk_phy_set_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 202
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 203 usleep_range(20, 100);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 204
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 205 mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_SSC_EN);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 206
bd4ba730ff2898 drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c Chunfeng Yun 2022-09-20 @207 mtk_phy_update_field(base + MIPITX_DSI_PLL_TOP,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 208 RG_DSI_MPPLL_PRESERVE,
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 209 mipi_tx->driver_data->mppll_preserve);
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 210
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 211 return 0;
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 212 }
78e01a8d0f4662 drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c Jitao Shi 2019-08-07 213
:::::: The code at line 207 was first introduced by commit
:::::: bd4ba730ff28985c0ecb49da1c6f18488666aa4f phy: mediatek: mipi: mt8173: use common helper to access registers
:::::: TO: Chunfeng Yun <chunfeng.yun@...iatek.com>
:::::: CC: Vinod Koul <vkoul@...nel.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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