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Message-ID: <202211031431.RA4r2fSQ-lkp@intel.com>
Date: Thu, 3 Nov 2022 14:14:02 +0800
From: kernel test robot <lkp@...el.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org
Subject: drivers/video/fbdev/omap/hwa742.c:791:13: warning: variable 'vdisp'
set but not used
Hi Arnd,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8e5423e991e8cd0988d0c4a3f4ac4ca1af7d148a
commit: 804f7f19c2e2928aeb8eafef8379fe8b8d13f98b fbdev: omap: avoid using mach/*.h files
date: 7 months ago
config: arm-randconfig-r032-20221103
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=804f7f19c2e2928aeb8eafef8379fe8b8d13f98b
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 804f7f19c2e2928aeb8eafef8379fe8b8d13f98b
# 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/video/fbdev/omap/
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/video/fbdev/omap/hwa742.c:492:5: warning: no previous prototype for function 'hwa742_update_window_async' [-Wmissing-prototypes]
int hwa742_update_window_async(struct fb_info *fbi,
^
drivers/video/fbdev/omap/hwa742.c:492:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int hwa742_update_window_async(struct fb_info *fbi,
^
static
>> drivers/video/fbdev/omap/hwa742.c:791:13: warning: variable 'vdisp' set but not used [-Wunused-but-set-variable]
int hdisp, vdisp;
^
>> drivers/video/fbdev/omap/hwa742.c:943:31: warning: variable 'omapfb_conf' set but not used [-Wunused-but-set-variable]
struct omapfb_platform_data *omapfb_conf;
^
3 warnings generated.
vim +/vdisp +791 drivers/video/fbdev/omap/hwa742.c
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 787
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 788
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 789 static int setup_tearsync(unsigned long pix_clk, int extif_div)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 790 {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 @791 int hdisp, vdisp;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 792 int hndp, vndp;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 793 int hsw, vsw;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 794 int hs, vs;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 795 int hs_pol_inv, vs_pol_inv;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 796 int use_hsvs, use_ndp;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 797 u8 b;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 798
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 799 hsw = hwa742_read_reg(HWA742_HS_W_REG);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 800 vsw = hwa742_read_reg(HWA742_VS_W_REG);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 801 hs_pol_inv = !(hsw & 0x80);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 802 vs_pol_inv = !(vsw & 0x80);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 803 hsw = hsw & 0x7f;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 804 vsw = vsw & 0x3f;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 805
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 806 hdisp = (hwa742_read_reg(HWA742_H_DISP_REG) & 0x7f) * 8;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 807 vdisp = hwa742_read_reg(HWA742_V_DISP_1_REG) +
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 808 ((hwa742_read_reg(HWA742_V_DISP_2_REG) & 0x3) << 8);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 809
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 810 hndp = hwa742_read_reg(HWA742_H_NDP_REG) & 0x7f;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 811 vndp = hwa742_read_reg(HWA742_V_NDP_REG);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 812
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 813 /* time to transfer one pixel (16bpp) in ps */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 814 hwa742.pix_tx_time = hwa742.reg_timings.we_cycle_time;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 815 if (hwa742.extif->get_max_tx_rate != NULL) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 816 /*
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 817 * The external interface might have a rate limitation,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 818 * if so, we have to maximize our transfer rate.
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 819 */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 820 unsigned long min_tx_time;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 821 unsigned long max_tx_rate = hwa742.extif->get_max_tx_rate();
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 822
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 823 dev_dbg(hwa742.fbdev->dev, "max_tx_rate %ld HZ\n",
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 824 max_tx_rate);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 825 min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 826 if (hwa742.pix_tx_time < min_tx_time)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 827 hwa742.pix_tx_time = min_tx_time;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 828 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 829
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 830 /* time to update one line in ps */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 831 hwa742.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 832 hwa742.line_upd_time *= 1000;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 833 if (hdisp * hwa742.pix_tx_time > hwa742.line_upd_time)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 834 /*
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 835 * transfer speed too low, we might have to use both
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 836 * HS and VS
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 837 */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 838 use_hsvs = 1;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 839 else
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 840 /* decent transfer speed, we'll always use only VS */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 841 use_hsvs = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 842
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 843 if (use_hsvs && (hs_pol_inv || vs_pol_inv)) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 844 /*
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 845 * HS or'ed with VS doesn't work, use the active high
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 846 * TE signal based on HNDP / VNDP
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 847 */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 848 use_ndp = 1;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 849 hs_pol_inv = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 850 vs_pol_inv = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 851 hs = hndp;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 852 vs = vndp;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 853 } else {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 854 /*
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 855 * Use HS or'ed with VS as a TE signal if both are needed
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 856 * or VNDP if only vsync is needed.
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 857 */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 858 use_ndp = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 859 hs = hsw;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 860 vs = vsw;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 861 if (!use_hsvs) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 862 hs_pol_inv = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 863 vs_pol_inv = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 864 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 865 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 866
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 867 hs = hs * 1000000 / (pix_clk / 1000); /* ps */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 868 hs *= 1000;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 869
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 870 vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 871 vs *= 1000;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 872
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 873 if (vs <= hs)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 874 return -EDOM;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 875 /* set VS to 120% of HS to minimize VS detection time */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 876 vs = hs * 12 / 10;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 877 /* minimize HS too */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 878 hs = 10000;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 879
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 880 b = hwa742_read_reg(HWA742_NDP_CTRL);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 881 b &= ~0x3;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 882 b |= use_hsvs ? 1 : 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 883 b |= (use_ndp && use_hsvs) ? 0 : 2;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 884 hwa742_write_reg(HWA742_NDP_CTRL, b);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 885
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 886 hwa742.vsync_only = !use_hsvs;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 887
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 888 dev_dbg(hwa742.fbdev->dev,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 889 "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n",
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 890 pix_clk, hwa742.pix_tx_time, hwa742.line_upd_time);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 891 dev_dbg(hwa742.fbdev->dev,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 892 "hs %d ps vs %d ps mode %d vsync_only %d\n",
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 893 hs, vs, (b & 0x3), !use_hsvs);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 894
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 895 return hwa742.extif->setup_tearsync(1, hs, vs,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 896 hs_pol_inv, vs_pol_inv, extif_div);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 897 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 898
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 899 static void hwa742_get_caps(int plane, struct omapfb_caps *caps)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 900 {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 901 hwa742.int_ctrl->get_caps(plane, caps);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 902 caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE |
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 903 OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 904 if (hwa742.te_connected)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 905 caps->ctrl |= OMAPFB_CAPS_TEARSYNC;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 906 caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) |
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 907 (1 << OMAPFB_COLOR_YUV420);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 908 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 909
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 910 static void hwa742_suspend(void)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 911 {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 912 hwa742.update_mode_before_suspend = hwa742.update_mode;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 913 hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 914 /* Enable sleep mode */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 915 hwa742_write_reg(HWA742_POWER_SAVE, 1 << 1);
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 916 clk_disable(hwa742.sys_ck);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 917 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 918
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 919 static void hwa742_resume(void)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 920 {
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 921 clk_enable(hwa742.sys_ck);
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 922
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 923 /* Disable sleep mode */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 924 hwa742_write_reg(HWA742_POWER_SAVE, 0);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 925 while (1) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 926 /* Loop until PLL output is stabilized */
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 927 if (hwa742_read_reg(HWA742_PLL_DIV_REG) & (1 << 7))
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 928 break;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 929 set_current_state(TASK_UNINTERRUPTIBLE);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 930 schedule_timeout(msecs_to_jiffies(5));
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 931 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 932 hwa742_set_update_mode(hwa742.update_mode_before_suspend);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 933 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 934
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 935 static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 936 struct omapfb_mem_desc *req_vram)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 937 {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 938 int r = 0, i;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 939 u8 rev, conf;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 940 unsigned long ext_clk;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 941 unsigned long sys_clk, pix_clk;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 942 int extif_mem_div;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 @943 struct omapfb_platform_data *omapfb_conf;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 944
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 945 BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 946
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 947 hwa742.fbdev = fbdev;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 948 hwa742.extif = fbdev->ext_if;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 949 hwa742.int_ctrl = fbdev->int_ctrl;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 950
dffb3b47baf472 drivers/video/omap/hwa742.c Jingoo Han 2013-09-17 951 omapfb_conf = dev_get_platdata(fbdev->dev);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 952
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 953 hwa742.sys_ck = clk_get(NULL, "hwa_sys_ck");
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 954
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 955 spin_lock_init(&hwa742.req_lock);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 956
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 957 if ((r = hwa742.int_ctrl->init(fbdev, 1, req_vram)) < 0)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 958 goto err1;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 959
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 960 if ((r = hwa742.extif->init(fbdev)) < 0)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 961 goto err2;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 962
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 963 ext_clk = clk_get_rate(hwa742.sys_ck);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 964 if ((r = calc_extif_timings(ext_clk, &extif_mem_div)) < 0)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 965 goto err3;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 966 hwa742.extif->set_timings(&hwa742.reg_timings);
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 967 clk_enable(hwa742.sys_ck);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 968
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 969 calc_hwa742_clk_rates(ext_clk, &sys_clk, &pix_clk);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 970 if ((r = calc_extif_timings(sys_clk, &extif_mem_div)) < 0)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 971 goto err4;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 972 hwa742.extif->set_timings(&hwa742.reg_timings);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 973
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 974 rev = hwa742_read_reg(HWA742_REV_CODE_REG);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 975 if ((rev & 0xfc) != 0x80) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 976 dev_err(fbdev->dev, "HWA742: invalid revision %02x\n", rev);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 977 r = -ENODEV;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 978 goto err4;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 979 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 980
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 981
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 982 if (!(hwa742_read_reg(HWA742_PLL_DIV_REG) & 0x80)) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 983 dev_err(fbdev->dev,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 984 "HWA742: controller not initialized by the bootloader\n");
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 985 r = -ENODEV;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 986 goto err4;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 987 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 988
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 989 if ((r = setup_tearsync(pix_clk, extif_mem_div)) < 0) {
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 990 dev_err(hwa742.fbdev->dev,
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 991 "HWA742: can't setup tearing synchronization\n");
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 992 goto err4;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 993 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 994 hwa742.te_connected = 1;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 995
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 996 hwa742.max_transmit_size = hwa742.extif->max_transmit_size;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 997
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 998 hwa742.update_mode = OMAPFB_UPDATE_DISABLED;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 999
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1000 hwa742.auto_update_window.x = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1001 hwa742.auto_update_window.y = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1002 hwa742.auto_update_window.width = fbdev->panel->x_res;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1003 hwa742.auto_update_window.height = fbdev->panel->y_res;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1004 hwa742.auto_update_window.format = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1005
6c78935777d12e drivers/video/fbdev/omap/hwa742.c Kees Cook 2017-11-10 1006 timer_setup(&hwa742.auto_update_timer, hwa742_update_window_auto, 0);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1007
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1008 hwa742.prev_color_mode = -1;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1009 hwa742.prev_flags = 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1010
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1011 hwa742.fbdev = fbdev;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1012
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1013 INIT_LIST_HEAD(&hwa742.free_req_list);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1014 INIT_LIST_HEAD(&hwa742.pending_req_list);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1015 for (i = 0; i < ARRAY_SIZE(hwa742.req_pool); i++)
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1016 list_add(&hwa742.req_pool[i].entry, &hwa742.free_req_list);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1017 BUG_ON(i <= IRQ_REQ_POOL_SIZE);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1018 sema_init(&hwa742.req_sema, i - IRQ_REQ_POOL_SIZE);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1019
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1020 conf = hwa742_read_reg(HWA742_CONFIG_REG);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1021 dev_info(fbdev->dev, ": Epson HWA742 LCD controller rev %d "
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1022 "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1023
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1024 return 0;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1025 err4:
088962c243db42 drivers/video/omap/hwa742.c Andrew de Quincey 2009-05-28 1026 clk_disable(hwa742.sys_ck);
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1027 err3:
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1028 hwa742.extif->cleanup();
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1029 err2:
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1030 hwa742.int_ctrl->cleanup();
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1031 err1:
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1032 return r;
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1033 }
aae76ef13e348c drivers/video/omap/hwa742.c Imre Deak 2007-05-26 1034
:::::: The code at line 791 was first introduced by commit
:::::: aae76ef13e348cebac225407ea2c452f8d0ff862 OMAP: add external Epson HWA742 LCD controller support
:::::: TO: Imre Deak <imre.deak@...idboot.com>
:::::: CC: Linus Torvalds <torvalds@...dy.linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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