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Sun, 24 Apr 2022 14:10:41 +0000 Date: Sun, 24 Apr 2022 22:10:13 +0800 From: kernel test robot To: Paul Hsieh Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Alex Deucher , Martin Leung Subject: [agd5f:drm-next 151/201] drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c:618:6: warning: no previous prototype for 'dcn31_set_low_power_state' Message-ID: <202204242243.jhz4z3rX-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next head: a2443ef0a8046ca98868224ee9bd6861c17e4995 commit: 593692d2de458a68c8e2326d48d1325d87947d90 [151/201] drm/amd/display: Power down hardware if timer not trigger config: powerpc64-buildonly-randconfig-r004-20220424 (https://download.01.org/0day-ci/archive/20220424/202204242243.jhz4z3rX-lkp@intel.com/config) compiler: powerpc64le-linux-gcc (GCC) 11.2.0 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 git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git git fetch --no-tags agd5f drm-next git checkout 593692d2de458a68c8e2326d48d1325d87947d90 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c:618:6: warning: no previous prototype for 'dcn31_set_low_power_state' [-Wmissing-prototypes] 618 | void dcn31_set_low_power_state(struct clk_mgr *clk_mgr_base) | ^~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32, from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/resource.h:28, from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/clk_mgr_internal.h:36, from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c:29: drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:129:22: warning: 'SYNAPTICS_DEVICE_ID' defined but not used [-Wunused-const-variable=] 129 | static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA"; | ^~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:126:22: warning: 'DP_SINK_DEVICE_STR_ID_2' defined but not used [-Wunused-const-variable=] 126 | static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5, 0}; | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:125:22: warning: 'DP_SINK_DEVICE_STR_ID_1' defined but not used [-Wunused-const-variable=] 125 | static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3, 0}; | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/dcn31_set_low_power_state +618 drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c 617 > 618 void dcn31_set_low_power_state(struct clk_mgr *clk_mgr_base) 619 { 620 int display_count; 621 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 622 struct dc *dc = clk_mgr_base->ctx->dc; 623 struct dc_state *context = dc->current_state; 624 625 if (clk_mgr_base->clks.pwr_state != DCN_PWR_STATE_LOW_POWER) { 626 display_count = dcn31_get_active_display_cnt_wa(dc, context); 627 /* if we can go lower, go lower */ 628 if (display_count == 0) { 629 union display_idle_optimization_u idle_info = { 0 }; 630 631 idle_info.idle_info.df_request_disabled = 1; 632 idle_info.idle_info.phy_ref_clk_off = 1; 633 idle_info.idle_info.s0i2_rdy = 1; 634 dcn31_smu_set_display_idle_optimization(clk_mgr, idle_info.data); 635 /* update power state */ 636 clk_mgr_base->clks.pwr_state = DCN_PWR_STATE_LOW_POWER; 637 } 638 } 639 } 640 -- 0-DAY CI Kernel Test Service https://01.org/lkp