Samsung S5PC210 and EXYNOS SoC platform has MIPI-DSI controller and MIPI-DSI
based LCD Panel could be used with it. This patch supports MIPI-DSI driver
based Samsung SoC chip.

LCD panel driver based MIPI-DSI should be registered to MIPI-DSI driver at
machine code and LCD panel driver specific function registered to mipi_dsim_ddi
structure at lcd panel init function called system init.
In the MIPI-DSI driver, find lcd panel driver by using registered
lcd panel name, and then initialize lcd panel driver.

Changes since v2:
	- support regulators control in the driver.
	- avoid type casting and use array to read easily in data write
	  function.
	- etc.

Signed-off-by: Donghwa Lee <redacted>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 drivers/video/Kconfig                 |    7 +
 drivers/video/Makefile                |    2 +
 drivers/video/s5p_mipi_dsi.c          |  619 ++++++++++++++++++++++
 drivers/video/s5p_mipi_dsi_common.c   |  902 +++++++++++++++++++++++++++++++++
 drivers/video/s5p_mipi_dsi_common.h   |   46 ++
 drivers/video/s5p_mipi_dsi_lowlevel.c |  627 +++++++++++++++++++++++
 drivers/video/s5p_mipi_dsi_lowlevel.h |  112 ++++
 drivers/video/s5p_mipi_dsi_regs.h     |  156 ++++++
 include/linux/mipi_dsim.h             |  361 +++++++++++++
 9 files changed, 2832 insertions(+), 0 deletions(-)
 create mode 100644 drivers/video/s5p_mipi_dsi.c
 create mode 100644 drivers/video/s5p_mipi_dsi_common.c
 create mode 100644 drivers/video/s5p_mipi_dsi_common.h
 create mode 100644 drivers/video/s5p_mipi_dsi_lowlevel.c
 create mode 100644 drivers/video/s5p_mipi_dsi_lowlevel.h
 create mode 100644 drivers/video/s5p_mipi_dsi_regs.h
 create mode 100644 include/linux/mipi_dsim.h

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index d83e967..879177b 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig

@@ -2082,6 +2082,13 @@ config FB_S3C2410_DEBUG
 	  Turn on debugging messages. Note that you can set/unset at run time
 	  through sysfs
 
+config S5P_MIPI_DSI
+	tristate "Samsung SoC MIPI-DSI support."
+	depends on FB_S3C && (ARCH_S5PV210 || ARCH_S5PV310 || ARCH_EXYNOS)
+	default n