panel/sharp-ls037v7dw01: Use refcounted allocation in place of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <[e-mail]>
Signed-off-by: Anusha Srivatsa <[e-mail]>
Link: https://lore.kernel.org/r/20[e-mail]
Signed-off-by: Maxime Ripard <[e-mail]>

drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c

···
 {
 	struct ls037v7dw01_panel *lcd;
 
-	lcd = devm_kzalloc(&pdev->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&pdev->dev, struct ls037v7dw01_panel, panel,
+				   &ls037v7dw01_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	platform_set_drvdata(pdev, lcd);
 	lcd->pdev = pdev;
···
 		dev_err(&pdev->dev, "failed to get mode[2] gpio\n");
 		return PTR_ERR(lcd->ud_gpio);
 	}
-
-	drm_panel_init(&lcd->panel, &pdev->dev, &ls037v7dw01_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
 
 	drm_panel_add(&lcd->panel);