Re: [PATCH 2/2] drm/panel: Add support for Tianma TA066VVHM03 panel

[kernel test robot <lkp@intel.com>]

Hi Alexander,

kernel test robot noticed the following build errors:

[auto build test ERROR on 11439c4635edd669ae435eec308f4ab8a0804808]

url:    https://github.com/intel-lab-lkp/linux/commits/Alexander-Koskovich/dt-bindings-display-panel-Document-Tianma-TA066VVHM03/20260308-140525
base:   11439c4635edd669ae435eec308f4ab8a0804808
patch link:    https://lore.kernel.org/r/20260308-tianma-ta066vvhm03-v1-2-869fac443b20%40pm.me
patch subject: [PATCH 2/2] drm/panel: Add support for Tianma TA066VVHM03 panel
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20260308/202603082223.61KVemAP-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260308/202603082223.61KVemAP-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/202603082223.61KVemAP-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/panel/panel-tianma-ta066vvhm03.c: In function 'tianma_ta066vvhm03_probe':
>> drivers/gpu/drm/panel/panel-tianma-ta066vvhm03.c:335:12: error: 'struct mipi_dsi_device' has no member named 'dsc_slice_per_pkt'
     335 |         dsi->dsc_slice_per_pkt = 2;
         |            ^~


vim +335 drivers/gpu/drm/panel/panel-tianma-ta066vvhm03.c

   286	
   287	static int tianma_ta066vvhm03_probe(struct mipi_dsi_device *dsi)
   288	{
   289		struct device *dev = &dsi->dev;
   290		struct tianma_ta066vvhm03 *ctx;
   291		int ret;
   292	
   293		ctx = devm_drm_panel_alloc(dev, struct tianma_ta066vvhm03, panel,
   294					   &tianma_ta066vvhm03_panel_funcs,
   295					   DRM_MODE_CONNECTOR_DSI);
   296		if (IS_ERR(ctx))
   297			return PTR_ERR(ctx);
   298	
   299		ret = devm_regulator_bulk_get_const(dev,
   300						    ARRAY_SIZE(tianma_ta066vvhm03_supplies),
   301						    tianma_ta066vvhm03_supplies,
   302						    &ctx->supplies);
   303		if (ret < 0)
   304			return ret;
   305	
   306		ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
   307		if (IS_ERR(ctx->enable_gpio))
   308			return dev_err_probe(dev, PTR_ERR(ctx->enable_gpio),
   309					     "Failed to get enable-gpios\n");
   310	
   311		ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
   312		if (IS_ERR(ctx->reset_gpio))
   313			return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
   314					     "Failed to get reset-gpios\n");
   315	
   316		ctx->dsi = dsi;
   317		mipi_dsi_set_drvdata(dsi, ctx);
   318	
   319		dsi->lanes = 4;
   320		dsi->format = MIPI_DSI_FMT_RGB888;
   321		dsi->mode_flags = MIPI_DSI_MODE_NO_EOT_PACKET |
   322				  MIPI_DSI_CLOCK_NON_CONTINUOUS;
   323	
   324		ctx->panel.prepare_prev_first = true;
   325	
   326		ctx->panel.backlight = tianma_ta066vvhm03_create_backlight(dsi);
   327		if (IS_ERR(ctx->panel.backlight))
   328			return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
   329					     "Failed to create backlight\n");
   330	
   331		drm_panel_add(&ctx->panel);
   332	
   333		/* This panel only supports DSC; unconditionally enable it */
   334		dsi->dsc = &ctx->dsc;
 > 335		dsi->dsc_slice_per_pkt = 2;
   336	
   337		ctx->dsc.dsc_version_major = 1;
   338		ctx->dsc.dsc_version_minor = 1;
   339	
   340		ctx->dsc.slice_height = 20;
   341		ctx->dsc.slice_width = 540;
   342		WARN_ON(1080 % ctx->dsc.slice_width);
   343		ctx->dsc.slice_count = 1080 / ctx->dsc.slice_width;
   344		ctx->dsc.bits_per_component = 10;
   345		ctx->dsc.bits_per_pixel = 8 << 4; /* 4 fractional bits */
   346		ctx->dsc.block_pred_enable = true;
   347	
   348		ret = mipi_dsi_attach(dsi);
   349		if (ret < 0) {
   350			drm_panel_remove(&ctx->panel);
   351			return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
   352		}
   353	
   354		return 0;
   355	}
   356	

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