[PATCH 3/4] plat-s5p: Add platform support for MIPI-CSI2 devices

[Sylwester Nawrocki]

There may be up to 2 MIPI-CSI2 interfaces depending on SoC version.

Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 arch/arm/plat-s5p/Kconfig                 |   10 ++++++++
 arch/arm/plat-s5p/Makefile                |    2 +
 arch/arm/plat-s5p/dev-csis0.c             |   34 +++++++++++++++++++++++++++++
 arch/arm/plat-s5p/dev-csis1.c             |   33 ++++++++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/csis.h |   28 +++++++++++++++++++++++
 arch/arm/plat-samsung/include/plat/devs.h |    3 ++
 6 files changed, 110 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/plat-s5p/dev-csis0.c
 create mode 100644 arch/arm/plat-s5p/dev-csis1.c
 create mode 100644 arch/arm/plat-samsung/include/plat/csis.h

diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
index 65dbfa8..2fb0c88 100644
--- a/arch/arm/plat-s5p/Kconfig
+++ b/arch/arm/plat-s5p/Kconfig
@@ -56,3 +56,13 @@ config S5P_DEV_ONENAND
 	bool
 	help
 	  Compile in platform device definition for OneNAND controller
+
+config S5P_DEV_CSIS0
+	bool
+	help
+	  Compile in platform device definitions for MIPI-CSI2 interface 0
+
+config S5P_DEV_CSIS1
+	bool
+	help
+	  Compile in platform device definitions for MIPI-CSI2 interface 1
diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile
index de65238..2b73173 100644
--- a/arch/arm/plat-s5p/Makefile
+++ b/arch/arm/plat-s5p/Makefile
@@ -28,3 +28,5 @@ obj-$(CONFIG_S5P_DEV_FIMC0)	+= dev-fimc0.o
 obj-$(CONFIG_S5P_DEV_FIMC1)	+= dev-fimc1.o
 obj-$(CONFIG_S5P_DEV_FIMC2)	+= dev-fimc2.o
 obj-$(CONFIG_S5P_DEV_ONENAND)	+= dev-onenand.o
+obj-$(CONFIG_S5P_DEV_CSIS0)	+= dev-csis0.o
+obj-$(CONFIG_S5P_DEV_CSIS1)	+= dev-csis1.o
diff --git a/arch/arm/plat-s5p/dev-csis0.c b/arch/arm/plat-s5p/dev-csis0.c
new file mode 100644
index 0000000..2b1ba43
--- /dev/null
+++ b/arch/arm/plat-s5p/dev-csis0.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2010 Samsung Electronics
+ *
+ * S5P series device definition for MIPI-CSI device 0
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <mach/map.h>
+
+static struct resource s5p_csis_resource[] = {
+	[0] = {
+		.start = S5P_PA_CSIS0,
+		.end   = S5P_PA_CSIS0 + SZ_4K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_MIPICSI0,
+		.end   = IRQ_MIPICSI0,
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+struct platform_device s5p_device_mipi_csis0 = {
+	.name		  = "s5p-mipi-csis",
+	.id		  = 0,
+	.num_resources	  = 2,
+	.resource	  = &s5p_csis_resource[0],
+};
diff --git a/arch/arm/plat-s5p/dev-csis1.c b/arch/arm/plat-s5p/dev-csis1.c
new file mode 100644
index 0000000..7f21ea8
--- /dev/null
+++ b/arch/arm/plat-s5p/dev-csis1.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2010 Samsung Electronics
+ *
+ * S5P series device definition for MIPI-CSI device 1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <mach/map.h>
+
+static struct resource s5p_csis_resource[] = {
+	[0] = {
+		.start = S5P_PA_CSIS1,
+		.end   = S5P_PA_CSIS1 + SZ_4K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = IRQ_MIPICSI1,
+		.end   = IRQ_MIPICSI1,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+struct platform_device s5p_device_mipi_csis1 = {
+	.name		  = "s5p-mipi-csis",
+	.id		  = 1,
+	.num_resources	  = 2,
+	.resource	  = &s5p_csis_resource[0],
+};
diff --git a/arch/arm/plat-samsung/include/plat/csis.h b/arch/arm/plat-samsung/include/plat/csis.h
new file mode 100644
index 0000000..6ea3a40
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/csis.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2010 Samsung Electronics Co., Ltd
+ *
+ * S5P series MIPI CSI2 device support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef PLAT_CSIS_H_
+#define PLAT_CSIS_H_ __FILE__
+
+/**
+ * struct s3c_platform_csis - default platform data for MIPI CSI2 interface
+ * @clock_rate: bus clock frequency
+ * @nlanes: number of MIPI data lanes used
+ * @alignment: MIPI data alignment in bits
+ * @hs_settle: HSYNC settle time (see CSIS_DPHYCTRL register description)
+ */
+struct s3c_platform_csis {
+	unsigned long clk_rate;
+	u8 nlanes;
+	u8 alignment;
+	u8 hs_settle;
+};
+
+#endif /* PLAT_CSIS_H_ */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 2d82a6c..7935a8b 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -122,6 +122,9 @@ extern struct platform_device s5p_device_fimc0;
 extern struct platform_device s5p_device_fimc1;
 extern struct platform_device s5p_device_fimc2;
 
+extern struct platform_device s5p_device_mipi_csis0;
+extern struct platform_device s5p_device_mipi_csis1;
+
 /* s3c2440 specific devices */
 
 #ifdef CONFIG_CPU_S3C2440
-- 
1.7.1