* [freescale-fslc:5.15-2.2.x-imx 1270/30000] drivers/video/fbdev/mxc/mipi_dsi_northwest.c:717:7: warning: variable 'color_coding' is used uninitialized whenever switch case is taken
@ 2024-05-06 2:33 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-05-06 2:33 UTC (permalink / raw)
To: Otavio Salvador; +Cc: oe-kbuild-all
tree: https://github.com/Freescale/linux-fslc 5.15-2.2.x-imx
head: 411c52448fdc0906f70c4585c7e05359c0b05c11
commit: 53b409327c6b9468f2c8c306a2b833e8fa3035be [1270/30000] video: fbdev: mxc: add Northwest Logic DSI driver support
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20240506/202405061000.ysnpgb75-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 37ae4ad0eef338776c7e2cffb3896153d43dcd90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240506/202405061000.ysnpgb75-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405061000.ysnpgb75-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/video/fbdev/mxc/mipi_dsi_northwest.c:33:
In file included from include/uapi/linux/mxcfb.h:31:
In file included from include/linux/fb.h:6:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:29:
In file included from include/linux/ftrace.h:12:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1601:
include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
436 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
437 | item];
| ~~~~
include/linux/vmstat.h:443:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
443 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
444 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:450:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
450 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:455:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
455 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
456 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:464:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
464 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
465 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:337:11: warning: variable 'pkt_control' set but not used [-Wunused-but-set-variable]
337 | uint32_t pkt_control;
| ^
>> drivers/video/fbdev/mxc/mipi_dsi_northwest.c:717:7: warning: variable 'color_coding' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
717 | case 16:
| ^~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:722:9: note: uninitialized use occurs here
722 | writel(color_coding, mipi_dsi->mmio_base + DPI_INTERFACE_COLOR_CODING);
| ^~~~~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:718:7: warning: variable 'color_coding' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
718 | case 18:
| ^~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:722:9: note: uninitialized use occurs here
722 | writel(color_coding, mipi_dsi->mmio_base + DPI_INTERFACE_COLOR_CODING);
| ^~~~~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
>> drivers/video/fbdev/mxc/mipi_dsi_northwest.c:719:2: warning: variable 'color_coding' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
719 | default:
| ^~~~~~~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:722:9: note: uninitialized use occurs here
722 | writel(color_coding, mipi_dsi->mmio_base + DPI_INTERFACE_COLOR_CODING);
| ^~~~~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:670:28: note: initialize the variable 'color_coding' to silence this warning
670 | uint32_t bpp, color_coding, pixel_fmt;
| ^
| = 0
>> drivers/video/fbdev/mxc/mipi_dsi_northwest.c:717:7: warning: variable 'pixel_fmt' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
717 | case 16:
| ^~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:723:9: note: uninitialized use occurs here
723 | writel(pixel_fmt, mipi_dsi->mmio_base + DPI_PIXEL_FORMAT);
| ^~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:718:7: warning: variable 'pixel_fmt' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized]
718 | case 18:
| ^~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:723:9: note: uninitialized use occurs here
723 | writel(pixel_fmt, mipi_dsi->mmio_base + DPI_PIXEL_FORMAT);
| ^~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
>> drivers/video/fbdev/mxc/mipi_dsi_northwest.c:719:2: warning: variable 'pixel_fmt' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
719 | default:
| ^~~~~~~
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:723:9: note: uninitialized use occurs here
723 | writel(pixel_fmt, mipi_dsi->mmio_base + DPI_PIXEL_FORMAT);
| ^~~~~~~~~
arch/arm64/include/asm/io.h:142:52: note: expanded from macro 'writel'
142 | #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
| ^
arch/arm64/include/asm/io.h:127:74: note: expanded from macro 'writel_relaxed'
127 | #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
| ^
include/uapi/linux/byteorder/little_endian.h:33:51: note: expanded from macro '__cpu_to_le32'
33 | #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
| ^
drivers/video/fbdev/mxc/mipi_dsi_northwest.c:670:39: note: initialize the variable 'pixel_fmt' to silence this warning
670 | uint32_t bpp, color_coding, pixel_fmt;
| ^
| = 0
12 warnings generated.
vim +/color_coding +717 drivers/video/fbdev/mxc/mipi_dsi_northwest.c
667
668 static int mipi_dsi_dpi_init(struct mipi_dsi_info *mipi_dsi)
669 {
> 670 uint32_t bpp, color_coding, pixel_fmt;
671 uint32_t pixel_fifo_level, hfp_period, hbp_period, hsa_period;
672 struct fb_videomode *mode = mipi_dsi->mode;
673 struct mipi_lcd_config *lcd_config = mipi_dsi->lcd_config;
674
675 bpp = fmt_to_bpp(lcd_config->dpi_fmt);
676
677 writel(mode->xres, mipi_dsi->mmio_base + DPI_PIXEL_PAYLOAD_SIZE);
678
679 switch (mipi_dsi->traffic_mode) {
680 case DSI_NON_BURST_WITH_SYNC_PULSE:
681 #ifdef CONFIG_FB_IMX64
682 pixel_fifo_level = 8;
683 hfp_period = mode->right_margin - DSI_HFP_PKT_OVERHEAD;
684 hbp_period = mode->left_margin - DSI_HBP_PKT_OVERHEAD;
685 hsa_period = mode->hsync_len - DSI_HSA_PKT_OVERHEAD;
686 #else
687 pixel_fifo_level = mode->xres;
688 hfp_period = 0x10;
689 hbp_period = 0x60;
690 hsa_period = 0xf0;
691 #endif
692 break;
693 case DSI_BURST_MODE:
694 pixel_fifo_level = mode->xres;
695 #ifdef CONFIG_FB_IMX64
696 hfp_period = mode->right_margin;
697 hbp_period = mode->left_margin;
698 hsa_period = mode->hsync_len;
699 #else
700 hfp_period = mode->right_margin * (bpp >> 3);
701 hbp_period = mode->left_margin * (bpp >> 3);
702 hsa_period = mode->hsync_len * (bpp >> 3);
703 #endif
704 break;
705 default:
706 pr_debug("unsupport traffic mode: %d\n",
707 mipi_dsi->traffic_mode);
708 return -EINVAL;
709 }
710 writel(pixel_fifo_level, mipi_dsi->mmio_base + DPI_PIXEL_FIFO_SEND_LEVEL);
711
712 switch (bpp) {
713 case 24:
714 color_coding = 5;
715 pixel_fmt = 3;
716 break;
> 717 case 16:
718 case 18:
> 719 default:
720 break;
721 }
722 writel(color_coding, mipi_dsi->mmio_base + DPI_INTERFACE_COLOR_CODING);
723 writel(pixel_fmt, mipi_dsi->mmio_base + DPI_PIXEL_FORMAT);
724 #ifdef CONFIG_FB_IMX64
725 writel(0x1, mipi_dsi->mmio_base + DPI_VSYNC_POLARITY);
726 writel(0x1, mipi_dsi->mmio_base + DPI_HSYNC_POLARITY);
727 #else
728 writel(0x0, mipi_dsi->mmio_base + DPI_VSYNC_POLARITY);
729 writel(0x0, mipi_dsi->mmio_base + DPI_HSYNC_POLARITY);
730 #endif
731 writel(mipi_dsi->traffic_mode,
732 mipi_dsi->mmio_base + DPI_VIDEO_MODE);
733
734 writel(hfp_period, mipi_dsi->mmio_base + DPI_HFP);
735 writel(hbp_period, mipi_dsi->mmio_base + DPI_HBP);
736 writel(hsa_period, mipi_dsi->mmio_base + DPI_HSA);
737
738 writel(0x0, mipi_dsi->mmio_base + DPI_ENABLE_MULT_PKTS);
739
740 writel(mode->upper_margin, mipi_dsi->mmio_base + DPI_VBP);
741 writel(mode->lower_margin, mipi_dsi->mmio_base + DPI_VFP);
742 writel(0x1, mipi_dsi->mmio_base + DPI_BLLP_MODE);
743 writel(0x0, mipi_dsi->mmio_base + DPI_USE_NULL_PKT_BLLP);
744
745 writel(mode->yres - 1, mipi_dsi->mmio_base + DPI_VACTIVE);
746
747 writel(0x0, mipi_dsi->mmio_base + DPI_VC);
748
749 return 0;
750 }
751
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2024-05-06 2:34 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-05-06 2:33 [freescale-fslc:5.15-2.2.x-imx 1270/30000] drivers/video/fbdev/mxc/mipi_dsi_northwest.c:717:7: warning: variable 'color_coding' is used uninitialized whenever switch case is taken kernel test robot
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.