drm/exynos: add DSIM driver

The patch adds driver for Exynos DSI master (DSIM). It is a platform driver which is registered as exynos_drm_display sub-driver of exynos_drm framework and implements DRM encoder/connector pair. It is also MIPI-DSI host driver and provides DSI bus for panels. It interacts with its panel(s) using drm_panel framework. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
mariux64 · Apr 4, 2014 · 7eb8f06 · 7eb8f06
1 parent 670935b
commit 7eb8f06
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diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
@@ -39,6 +39,15 @@ config DRM_EXYNOS_DPI
 	help
 	  This enables support for Exynos parallel output.
 
+config DRM_EXYNOS_DSI
+	bool "EXYNOS DRM MIPI-DSI driver support"
+	depends on DRM_EXYNOS
+	select DRM_MIPI_DSI
+	select DRM_PANEL
+	default n
+	help
+	  This enables support for Exynos MIPI-DSI device.
+
 config DRM_EXYNOS_DP
 	bool "EXYNOS DRM DP driver support"
 	depends on DRM_EXYNOS && ARCH_EXYNOS

diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
@@ -12,6 +12,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_DMABUF) += exynos_drm_dmabuf.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD)	+= exynos_drm_fimd.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_DPI)	+= exynos_drm_dpi.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_DSI)	+= exynos_drm_dsi.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_DP)	+= exynos_dp_core.o exynos_dp_reg.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI)	+= exynos_hdmi.o exynos_mixer.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI)	+= exynos_drm_vidi.o

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -450,6 +450,12 @@ static int __init exynos_drm_init(void)
 		goto out_dp;
 #endif
 
+#ifdef CONFIG_DRM_EXYNOS_DSI
+	ret = platform_driver_register(&dsi_driver);
+	if (ret < 0)
+		goto out_dsi;
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_FIMD
 	ret = platform_driver_register(&fimd_driver);
 	if (ret < 0)
@@ -566,6 +572,11 @@ static int __init exynos_drm_init(void)
 out_fimd:
 #endif
 
+#ifdef CONFIG_DRM_EXYNOS_DSI
+	platform_driver_unregister(&dsi_driver);
+out_dsi:
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_DP
 	platform_driver_unregister(&dp_driver);
 out_dp:
@@ -613,6 +624,10 @@ static void __exit exynos_drm_exit(void)
 	platform_driver_unregister(&fimd_driver);
 #endif
 
+#ifdef CONFIG_DRM_EXYNOS_DSI
+	platform_driver_unregister(&dsi_driver);
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_DP
 	platform_driver_unregister(&dp_driver);
 #endif

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -370,6 +370,7 @@ static inline int exynos_dpi_remove(struct device *dev) { return 0; }
 #endif
 
 extern struct platform_driver dp_driver;
+extern struct platform_driver dsi_driver;
 extern struct platform_driver fimd_driver;
 extern struct platform_driver hdmi_driver;
 extern struct platform_driver mixer_driver;