Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/…

…kernel/git/daeinki/drm-exynos into drm-next

   This is final pull request for Exynos next and includes device tree
   support for fimc device, one revert, some code cleanups and fixup.
   The revert replaces wrong one[1] with correct one[2].
   This was my mistake and sorry for this.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: Don't blend mixer layer 0
  drm/exynos: Remove unnecessary braces in exynos_hdmi.c
  drm/exynos: Select VIDEOMODE_HELPERS for FIMD
  drm/exynos: do not use generic flags to dumb
  drm/exynos: added ipp device registration to drm driver
  exynos/drm: hdmi: cleanup for hdmi common device registration
  drm/exynos: fix wrong return check for platform_device_register_simple
  drm/exynos: add device tree support for fimc ipp driver
  drm/exynos: rework fimc clocks handling
  drm/exynos: remove redundant devm_kfree()
  drm/exynos: enable FIMD clocks
  Revert "drm/exynos: prepare FIMD clocks"

drivers/gpu/drm/exynos/Kconfig

@@ -25,8 +25,8 @@ config DRM_EXYNOS_DMABUF
 config DRM_EXYNOS_FIMD
 	bool "Exynos DRM FIMD"
 	depends on OF && DRM_EXYNOS && !FB_S3C && !ARCH_MULTIPLATFORM
-	select OF_VIDEOMODE
 	select FB_MODE_HELPERS
+	select VIDEOMODE_HELPERS
 	help
 	  Choose this option if you want to use Exynos FIMD for DRM.
 
@@ -56,7 +56,7 @@ config DRM_EXYNOS_IPP
 
 config DRM_EXYNOS_FIMC
 	bool "Exynos DRM FIMC"
-	depends on DRM_EXYNOS_IPP
+	depends on DRM_EXYNOS_IPP && MFD_SYSCON && OF
 	help
 	  Choose this option if you want to use Exynos FIMC for DRM.
 

drivers/gpu/drm/exynos/exynos_drm_drv.c

@@ -380,6 +380,10 @@ static int __init exynos_drm_init(void)
 	ret = platform_driver_register(&ipp_driver);
 	if (ret < 0)
 		goto out_ipp;
+
+	ret = exynos_platform_device_ipp_register();
+	if (ret < 0)
+		goto out_ipp_dev;
 #endif
 
 	ret = platform_driver_register(&exynos_drm_platform_driver);
@@ -388,7 +392,7 @@ static int __init exynos_drm_init(void)
 
 	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
 				NULL, 0);
-	if (IS_ERR_OR_NULL(exynos_drm_pdev)) {
+	if (IS_ERR(exynos_drm_pdev)) {
 		ret = PTR_ERR(exynos_drm_pdev);
 		goto out;
 	}
@@ -400,6 +404,8 @@ static int __init exynos_drm_init(void)
 
 out_drm:
 #ifdef CONFIG_DRM_EXYNOS_IPP
+	exynos_platform_device_ipp_unregister();
+out_ipp_dev:
 	platform_driver_unregister(&ipp_driver);
 out_ipp:
 #endif
@@ -456,6 +462,7 @@ static void __exit exynos_drm_exit(void)
 	platform_driver_unregister(&exynos_drm_platform_driver);
 
 #ifdef CONFIG_DRM_EXYNOS_IPP
+	exynos_platform_device_ipp_unregister();
 	platform_driver_unregister(&ipp_driver);
 #endif
 

drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -322,13 +322,23 @@ void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
  * this function registers exynos drm hdmi platform device. It ensures only one
  * instance of the device is created.
  */
-extern int exynos_platform_device_hdmi_register(void);
+int exynos_platform_device_hdmi_register(void);
 
 /*
  * this function unregisters exynos drm hdmi platform device if it exists.
  */
 void exynos_platform_device_hdmi_unregister(void);
 
+/*
+ * this function registers exynos drm ipp platform device.
+ */
+int exynos_platform_device_ipp_register(void);
+
+/*
+ * this function unregisters exynos drm ipp platform device if it exists.
+ */
+void exynos_platform_device_ipp_unregister(void);
+
 extern struct platform_driver fimd_driver;
 extern struct platform_driver hdmi_driver;
 extern struct platform_driver mixer_driver;