[sashal-linux-stable:queue-5.4 92/132] drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse: sparse: incorrect type in initializer (different argument counts)

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

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.4
head:   d2c5af89e80c5b71f1da59879464a930947306a2
commit: e2bf810d1ab3ed29b696968b2b4cceb58f2f5bad [92/132] drm/panel: add panel driver for Elida KD35T133 panels
config: i386-randconfig-s001-20210318 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-277-gc089cd2d-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/commit/?id=e2bf810d1ab3ed29b696968b2b4cceb58f2f5bad
        git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
        git fetch --no-tags sashal-linux-stable queue-5.4
        git checkout e2bf810d1ab3ed29b696968b2b4cceb58f2f5bad
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse: sparse: incorrect type in initializer (different argument counts) @@     expected int ( *get_modes )( ... ) @@     got int ( * )( ... ) @@
   drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse:     expected int ( *get_modes )( ... )
   drivers/gpu/drm/panel/panel-elida-kd35t133.c:233:27: sparse:     got int ( * )( ... )
>> drivers/gpu/drm/panel/panel-elida-kd35t133.c:281:23: sparse: sparse: too many arguments for function drm_panel_init
   drivers/gpu/drm/panel/panel-elida-kd35t133.c:284:15: sparse: sparse: undefined identifier 'drm_panel_of_backlight'

vim +233 drivers/gpu/drm/panel/panel-elida-kd35t133.c

   229	
   230	static const struct drm_panel_funcs kd35t133_funcs = {
   231		.unprepare	= kd35t133_unprepare,
   232		.prepare	= kd35t133_prepare,
 > 233		.get_modes	= kd35t133_get_modes,
   234	};
   235	
   236	static int kd35t133_probe(struct mipi_dsi_device *dsi)
   237	{
   238		struct device *dev = &dsi->dev;
   239		struct kd35t133 *ctx;
   240		int ret;
   241	
   242		ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
   243		if (!ctx)
   244			return -ENOMEM;
   245	
   246		ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
   247		if (IS_ERR(ctx->reset_gpio)) {
   248			DRM_DEV_ERROR(dev, "cannot get reset gpio\n");
   249			return PTR_ERR(ctx->reset_gpio);
   250		}
   251	
   252		ctx->vdd = devm_regulator_get(dev, "vdd");
   253		if (IS_ERR(ctx->vdd)) {
   254			ret = PTR_ERR(ctx->vdd);
   255			if (ret != -EPROBE_DEFER)
   256				DRM_DEV_ERROR(dev,
   257					      "Failed to request vdd regulator: %d\n",
   258					      ret);
   259			return ret;
   260		}
   261	
   262		ctx->iovcc = devm_regulator_get(dev, "iovcc");
   263		if (IS_ERR(ctx->iovcc)) {
   264			ret = PTR_ERR(ctx->iovcc);
   265			if (ret != -EPROBE_DEFER)
   266				DRM_DEV_ERROR(dev,
   267					      "Failed to request iovcc regulator: %d\n",
   268					      ret);
   269			return ret;
   270		}
   271	
   272		mipi_dsi_set_drvdata(dsi, ctx);
   273	
   274		ctx->dev = dev;
   275	
   276		dsi->lanes = 1;
   277		dsi->format = MIPI_DSI_FMT_RGB888;
   278		dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
   279				  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET;
   280	
 > 281		drm_panel_init(&ctx->panel, &dsi->dev, &kd35t133_funcs,
   282			       DRM_MODE_CONNECTOR_DSI);
   283	
   284		ret = drm_panel_of_backlight(&ctx->panel);
   285		if (ret)
   286			return ret;
   287	
   288		drm_panel_add(&ctx->panel);
   289	
   290		ret = mipi_dsi_attach(dsi);
   291		if (ret < 0) {
   292			DRM_DEV_ERROR(dev, "mipi_dsi_attach failed: %d\n", ret);
   293			drm_panel_remove(&ctx->panel);
   294			return ret;
   295		}
   296	
   297		return 0;
   298	}
   299	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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