Re: [PATCH v2 12/16] drm/msm/dpu: add an API to setup the CDM block for writeback

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Hi Abhinav,

kernel test robot noticed the following build warnings:

[auto build test WARNING on next-20231207]
[also build test WARNING on v6.7-rc4]
[cannot apply to drm-misc/drm-misc-next linus/master v6.7-rc4 v6.7-rc3 v6.7-rc2]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Abhinav-Kumar/drm-msm-dpu-add-formats-check-for-writeback-encoder/20231208-130820
base:   next-20231207
patch link:    https://lore.kernel.org/r/20231208050641.32582-13-quic_abhinavk%40quicinc.com
patch subject: [PATCH v2 12/16] drm/msm/dpu: add an API to setup the CDM block for writeback
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231210/202312102149.qmbCdsg2-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312102149.qmbCdsg2-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312102149.qmbCdsg2-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c:267: warning: expecting prototype for dpu_encoder_phys_wb_setup_cdp(). Prototype was for dpu_encoder_helper_phys_setup_cdm() instead


vim +267 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c

   261	
   262	/**
   263	 * dpu_encoder_phys_wb_setup_cdp - setup chroma down sampling block
   264	 * @phys_enc:Pointer to physical encoder
   265	 */
   266	static void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc)
 > 267	{
   268		struct dpu_hw_cdm *hw_cdm;
   269		struct dpu_hw_cdm_cfg *cdm_cfg;
   270		struct dpu_hw_pingpong *hw_pp;
   271		struct dpu_encoder_phys_wb *wb_enc;
   272		const struct msm_format *format;
   273		const struct dpu_format *dpu_fmt;
   274		struct drm_writeback_job *wb_job;
   275		int ret;
   276	
   277		if (!phys_enc)
   278			return;
   279	
   280		wb_enc = to_dpu_encoder_phys_wb(phys_enc);
   281		cdm_cfg = &wb_enc->cdm_cfg;
   282		hw_pp = phys_enc->hw_pp;
   283		hw_cdm = phys_enc->hw_cdm;
   284		wb_job = wb_enc->wb_job;
   285	
   286		format = msm_framebuffer_format(wb_enc->wb_job->fb);
   287		dpu_fmt = dpu_get_dpu_format_ext(format->pixel_format, wb_job->fb->modifier);
   288	
   289		if (!hw_cdm)
   290			return;
   291	
   292		if (!DPU_FORMAT_IS_YUV(dpu_fmt)) {
   293			DPU_DEBUG("[enc:%d] cdm_disable fmt:%x\n", DRMID(phys_enc->parent),
   294				  dpu_fmt->base.pixel_format);
   295			if (hw_cdm->ops.disable)
   296				hw_cdm->ops.disable(hw_cdm);
   297	
   298			return;
   299		}
   300	
   301		memset(cdm_cfg, 0, sizeof(struct dpu_hw_cdm_cfg));
   302	
   303		cdm_cfg->output_width = wb_job->fb->width;
   304		cdm_cfg->output_height = wb_job->fb->height;
   305		cdm_cfg->output_fmt = dpu_fmt;
   306		cdm_cfg->output_type = CDM_CDWN_OUTPUT_WB;
   307		cdm_cfg->output_bit_depth = DPU_FORMAT_IS_DX(dpu_fmt) ?
   308				CDM_CDWN_OUTPUT_10BIT : CDM_CDWN_OUTPUT_8BIT;
   309		cdm_cfg->csc_cfg = dpu_hw_get_csc_cfg(DPU_HW_RGB2YUV_601L_10BIT);
   310		if (!cdm_cfg->csc_cfg) {
   311			DPU_ERROR("valid csc not found\n");
   312			return;
   313		}
   314	
   315		/* enable 10 bit logic */
   316		switch (cdm_cfg->output_fmt->chroma_sample) {
   317		case DPU_CHROMA_RGB:
   318			cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
   319			cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
   320			break;
   321		case DPU_CHROMA_H2V1:
   322			cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
   323			cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
   324			break;
   325		case DPU_CHROMA_420:
   326			cdm_cfg->h_cdwn_type = CDM_CDWN_COSITE;
   327			cdm_cfg->v_cdwn_type = CDM_CDWN_OFFSITE;
   328			break;
   329		case DPU_CHROMA_H1V2:
   330		default:
   331			DPU_ERROR("[enc:%d] unsupported chroma sampling type\n",
   332				  DRMID(phys_enc->parent));
   333			cdm_cfg->h_cdwn_type = CDM_CDWN_DISABLE;
   334			cdm_cfg->v_cdwn_type = CDM_CDWN_DISABLE;
   335			break;
   336		}
   337	
   338		DPU_DEBUG("[enc:%d] cdm_enable:%d,%d,%X,%d,%d,%d,%d]\n",
   339			  DRMID(phys_enc->parent), cdm_cfg->output_width,
   340			  cdm_cfg->output_height, cdm_cfg->output_fmt->base.pixel_format,
   341			  cdm_cfg->output_type, cdm_cfg->output_bit_depth,
   342			  cdm_cfg->h_cdwn_type, cdm_cfg->v_cdwn_type);
   343	
   344		if (hw_cdm->ops.enable) {
   345			cdm_cfg->pp_id = hw_pp->idx;
   346			ret = hw_cdm->ops.enable(hw_cdm, cdm_cfg);
   347			if (ret < 0) {
   348				DPU_ERROR("[enc:%d] failed to enable CDM; ret:%d\n",
   349					  DRMID(phys_enc->parent), ret);
   350				return;
   351			}
   352		}
   353	}
   354	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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