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charset=us-ascii Content-Disposition: inline tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-6.6 head: 699322c13fb8c58442ef1b7956a600d27be2a27a commit: 699322c13fb8c58442ef1b7956a600d27be2a27a [16/16] CHROMIUM: drm/bridge: anx7625: Fix bandwidth mismatch issue config: x86_64-buildonly-randconfig-001-20250325 (https://download.01.org/0day-ci/archive/20250325/202503251239.pjXlbVph-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250325/202503251239.pjXlbVph-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202503251239.pjXlbVph-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/bridge/analogix/anx7625.c: In function 'lt_check_work_func': >> drivers/gpu/drm/bridge/analogix/anx7625.c:2789:24: warning: variable 'dev' set but not used [-Wunused-but-set-variable] 2789 | struct device *dev; | ^~~ vim +/dev +2789 drivers/gpu/drm/bridge/analogix/anx7625.c 2784 2785 static void lt_check_work_func(struct work_struct *work) 2786 { 2787 struct delayed_work *dwork; 2788 struct anx7625_data *ctx; > 2789 struct device *dev; 2790 int ret; 2791 u8 lanes, rate; 2792 u32 downstream_max_pixel_clock; 2793 u8 data[2]; 2794 struct drm_connector *conn; 2795 2796 dwork = to_delayed_work(work); 2797 ctx = container_of(dwork, struct anx7625_data, lt_check_work); 2798 dev = ctx->dev; 2799 2800 if (!ctx->connector) 2801 return; 2802 2803 conn = ctx->connector; 2804 2805 ret = anx7625_reg_block_read(ctx, ctx->i2c.tx_p0_client, 0xa0, 2, data); 2806 if (ret < 0) 2807 return; 2808 2809 lanes = data[1] & 0x1F; 2810 rate = data[0]; 2811 /* 2812 * Lane rate equals 0x19 and lane count equals 1 2813 * indicate OCM failed to do link training, then just 2814 * reset lane count and lane speed to 0. 2815 */ 2816 if (lanes == 1 && rate == 0x19) { 2817 lanes = 0; 2818 rate = 0; 2819 } 2820 2821 downstream_max_pixel_clock = anx7625_get_pixel_clock(lanes, rate); 2822 2823 if (downstream_max_pixel_clock > ctx->dt.pixelclock.min) 2824 return; 2825 2826 /* Grab the locks before changing connector property */ 2827 mutex_lock(&conn->dev->mode_config.mutex); 2828 /* 2829 * Set connector link status to BAD and send a Uevent to notify 2830 * userspace to do a modeset. 2831 */ 2832 drm_connector_set_link_status_property(conn, DRM_MODE_LINK_STATUS_BAD); 2833 mutex_unlock(&conn->dev->mode_config.mutex); 2834 /* Send Hotplug uevent so userspace can reprobe */ 2835 drm_kms_helper_hotplug_event(ctx->bridge.dev); 2836 } 2837 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki