[superna9999:amlogic/v5.20/g12-dsi-wip 9/12] drivers/gpu/drm/meson/meson_venc.c:1595:10: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations

From: kernel test robot
Date: Fri Jun 17 2022 - 12:50:50 EST


tree: https://github.com/superna9999/linux amlogic/v5.20/g12-dsi-wip
head: 0e725ea0a5ab9f70fc54c2e76475b8d594b90c4e
commit: 927953782b0c6c12a73654c526a12678e348f817 [9/12] drm/meson: venc: add ENCL encoder setup for MIPI-DSI output
config: arm-randconfig-r014-20220617 (https://download.01.org/0day-ci/archive/20220618/202206180004.GHjxyBau-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d764aa7fc6b9cc3fbe960019018f5f9e941eb0a6)
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/superna9999/linux/commit/927953782b0c6c12a73654c526a12678e348f817
git remote add superna9999 https://github.com/superna9999/linux
git fetch --no-tags superna9999 amlogic/v5.20/g12-dsi-wip
git checkout 927953782b0c6c12a73654c526a12678e348f817
# 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=arm SHELL=/bin/bash drivers/gpu/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/meson/meson_venc.c:1595:10: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0),
^
1 error generated.


vim +/FIELD_PREP +1595 drivers/gpu/drm/meson/meson_venc.c

1579
1580 static void meson_encl_set_gamma_table(struct meson_drm *priv, u16 *data,
1581 u32 rgb_mask)
1582 {
1583 int i, ret;
1584 u32 reg;
1585
1586 writel_bits_relaxed(L_GAMMA_CNTL_PORT_EN, 0,
1587 priv->io_base + _REG(L_GAMMA_CNTL_PORT));
1588
1589 ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
1590 reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000);
1591 if (ret)
1592 pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__);
1593
1594 writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask |
> 1595 FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0),
1596 priv->io_base + _REG(L_GAMMA_ADDR_PORT));
1597
1598 for (i = 0; i < 256; i++) {
1599 ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
1600 reg, reg & L_GAMMA_CNTL_PORT_WR_RDY,
1601 10, 10000);
1602 if (ret)
1603 pr_warn_once("%s: GAMMA WR_RDY timeout\n", __func__);
1604
1605 writel_relaxed(data[i], priv->io_base + _REG(L_GAMMA_DATA_PORT));
1606 }
1607
1608 ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
1609 reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000);
1610 if (ret)
1611 pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__);
1612
1613 writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask |
1614 FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0x23),
1615 priv->io_base + _REG(L_GAMMA_ADDR_PORT));
1616 }
1617

--
0-DAY CI Kernel Test Service
https://01.org/lkp