From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 drivers/misc/sprd_vpp/sprd_dither/Kconfig          |   3 +
 drivers/misc/sprd_vpp/sprd_dither/Makefile         |  10 +
 .../misc/sprd_vpp/sprd_dither/vpp_dither_config.c  | 500 +++++++++++++++++++++
 .../misc/sprd_vpp/sprd_dither/vpp_dither_config.h  |  75 ++++
 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_drv.c | 460 +++++++++++++++++++
 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_reg.h |  50 +++
 .../misc/sprd_vpp/sprd_dither/vpp_dither_types.h   |  74 +++
 7 files changed, 1172 insertions(+)
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/Kconfig
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/Makefile
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.c
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.h
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_drv.c
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_reg.h
 create mode 100644 drivers/misc/sprd_vpp/sprd_dither/vpp_dither_types.h

(limited to 'drivers/misc/sprd_vpp/sprd_dither')

diff --git a/drivers/misc/sprd_vpp/sprd_dither/Kconfig b/drivers/misc/sprd_vpp/sprd_dither/Kconfig
new file mode 100644
index 00000000..49faa7b7
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/Kconfig
@@ -0,0 +1,3 @@
+config VIDEO_VPP_DITHER_SPRD
+	tristate "SPRD VPP_DITHER driver"
+	default n
diff --git a/drivers/misc/sprd_vpp/sprd_dither/Makefile b/drivers/misc/sprd_vpp/sprd_dither/Makefile
new file mode 100644
index 00000000..2a2134df
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/Makefile
@@ -0,0 +1,10 @@
+
+
+
+ifeq ($(CONFIG_VIDEO_VPP_DITHER_SPRD),y)
+sprd_vpp_dither-objs := vpp_dither_config.o vpp_dither_drv.o
+obj-y += sprd_vpp_dither.o
+
+endif
+
+
diff --git a/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.c b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.c
new file mode 100644
index 00000000..62d0e5ea
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.c
@@ -0,0 +1,500 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include <linux/math64.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/kthread.h>
+#include <linux/io.h>
+#include <linux/pid.h>
+
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/device.h>
+#endif
+
+#include <mach/hardware.h>
+#include <mach/arch_misc.h>
+#include <mach/sci.h>
+#include <video/ion_sprd.h>
+
+#ifdef CONFIG_HAS_EARLYSUSPEND_GSP
+#include <linux/earlysuspend.h>
+#endif
+
+#include <mach/hardware.h>
+#include "vpp_dither_types.h"
+#include "vpp_dither_config.h"
+#include "vpp_dither_reg.h"
+
+
+extern struct vpp_dither_device *vpp_dither_ctx;
+
+void VPP_Dither_Early_Init()
+{
+	const unsigned char dither_path_table[DITHER_PATH_SIZE] =
+	{
+		0x00,0x01,0x11,0x10,0x20,0x30,0x31,0x21,0x22,0x32,0x33,0x23,0x13,0x12,0x02,0x03,0x04,0x14,0x15,0x05,0x06,0x07,0x17,0x16,0x26,0x27,0x37,0x36,0x35,0x25,0x24,0x34,
+		0x44,0x54,0x55,0x45,0x46,0x47,0x57,0x56,0x66,0x67,0x77,0x76,0x75,0x65,0x64,0x74,0x73,0x72,0x62,0x63,0x53,0x43,0x42,0x52,0x51,0x41,0x40,0x50,0x60,0x61,0x71,0x70,
+		0x80,0x90,0x91,0x81,0x82,0x83,0x93,0x92,0xa2,0xa3,0xb3,0xb2,0xb1,0xa1,0xa0,0xb0,0xc0,0xc1,0xd1,0xd0,0xe0,0xf0,0xf1,0xe1,0xe2,0xf2,0xf3,0xe3,0xd3,0xd2,0xc2,0xc3,
+		0xc4,0xc5,0xd5,0xd4,0xe4,0xf4,0xf5,0xe5,0xe6,0xf6,0xf7,0xe7,0xd7,0xd6,0xc6,0xc7,0xb7,0xa7,0xa6,0xb6,0xb5,0xb4,0xa4,0xa5,0x95,0x94,0x84,0x85,0x86,0x96,0x97,0x87,
+		0x88,0x98,0x99,0x89,0x8a,0x8b,0x9b,0x9a,0xaa,0xab,0xbb,0xba,0xb9,0xa9,0xa8,0xb8,0xc8,0xc9,0xd9,0xd8,0xe8,0xf8,0xf9,0xe9,0xea,0xfa,0xfb,0xeb,0xdb,0xda,0xca,0xcb,
+		0xcc,0xcd,0xdd,0xdc,0xec,0xfc,0xfd,0xed,0xee,0xfe,0xff,0xef,0xdf,0xde,0xce,0xcf,0xbf,0xaf,0xae,0xbe,0xbd,0xbc,0xac,0xad,0x9d,0x9c,0x8c,0x8d,0x8e,0x9e,0x9f,0x8f,
+		0x7f,0x7e,0x6e,0x6f,0x5f,0x4f,0x4e,0x5e,0x5d,0x4d,0x4c,0x5c,0x6c,0x6d,0x7d,0x7c,0x7b,0x6d,0x6a,0x7a,0x79,0x78,0x68,0x69,0x59,0x58,0x48,0x49,0x4a,0x5a,0x5b,0x4b,
+		0x3b,0x2b,0x2a,0x3a,0x39,0x38,0x28,0x29,0x19,0x18,0x08,0x09,0x0a,0x1a,0x1b,0x0b,0x0c,0x0d,0x1d,0x1c,0x2c,0x3c,0x3d,0x2d,0x2e,0x3e,0x3f,0x2f,0x1f,0x1e,0x0e,0x0f,
+		0xff,0xef,0xee,0xfe,0xfd,0xfc,0xec,0xed,0xdd,0xdc,0xcc,0xcd,0xce,0xde,0xdf,0xcf,0xbf,0xbe,0xae,0xaf,0x9f,0x8f,0x8e,0x9e,0x9d,0x8d,0x8c,0x9c,0xac,0xad,0xbd,0xbc,
+		0xbb,0xba,0xaa,0xab,0x9b,0x8b,0x8a,0x9a,0x99,0x89,0x88,0x98,0xa8,0xa9,0xb9,0xb8,0xc8,0xd8,0xd9,0xc9,0xca,0xcb,0xdb,0xda,0xea,0xeb,0xfb,0xfa,0xf9,0xe9,0xe8,0xf8,
+		0xf7,0xf6,0xe6,0xe7,0xd7,0xc7,0xc6,0xd6,0xd5,0xc5,0xc4,0xd4,0xe4,0xe5,0xf5,0xf4,0xf3,0xe3,0xe2,0xf2,0xf1,0xf0,0xe0,0xe1,0xd1,0xd0,0xc0,0xc1,0xc2,0xd2,0xd3,0xc3,
+		0xb3,0xa3,0xa2,0xb2,0xb1,0xb0,0xa0,0xa1,0x91,0x90,0x80,0x81,0x82,0x92,0x93,0x83,0x84,0x85,0x95,0x94,0xa4,0xb4,0xb5,0xa5,0xa6,0xb6,0xb7,0xa7,0x97,0x96,0x86,0x87,
+		0x77,0x76,0x66,0x67,0x57,0x47,0x46,0x56,0x55,0x45,0x44,0x54,0x64,0x65,0x75,0x74,0x73,0x63,0x62,0x72,0x71,0x70,0x60,0x61,0x51,0x50,0x40,0x41,0x42,0x52,0x53,0x43,
+		0x33,0x23,0x22,0x32,0x31,0x30,0x20,0x21,0x11,0x10,0x00,0x01,0x02,0x12,0x13,0x03,0x04,0x05,0x15,0x14,0x24,0x34,0x35,0x25,0x26,0x36,0x37,0x27,0x17,0x16,0x06,0x07,
+		0x08,0x18,0x19,0x09,0x0a,0x0b,0x1b,0x1a,0x2a,0x2b,0x3b,0x3a,0x39,0x29,0x28,0x38,0x48,0x49,0x59,0x58,0x68,0x78,0x79,0x69,0x6a,0x7a,0x7b,0x6b,0x5b,0x5a,0x4a,0x4b,
+		0x4c,0x4d,0x5d,0x5c,0x6c,0x7c,0x7d,0x6d,0x6e,0x7e,0x7f,0x6f,0x5f,0x5e,0x4e,0x4f,0x3f,0x2f,0x2e,0x3e,0x3d,0x3c,0x2c,0x2d,0x1d,0x1c,0x0c,0x0d,0x0e,0x1e,0x1f,0x0f,
+		0xff,0xfe,0xee,0xef,0xdf,0xcf,0xce,0xde,0xdd,0xcd,0xcc,0xdc,0xec,0xed,0xfd,0xfc,0xfb,0xeb,0xea,0xfa,0xf9,0xf8,0xe8,0xe9,0xd9,0xd8,0xc8,0xc9,0xca,0xda,0xdb,0xcb,
+		0xbb,0xab,0xaa,0xba,0xb9,0xb8,0xa8,0xa9,0x99,0x98,0x88,0x89,0x8a,0x9a,0x9b,0x8b,0x8c,0x8d,0x9d,0x9c,0xac,0xbc,0xbd,0xad,0xae,0xbe,0xbf,0xaf,0x9f,0x9e,0x8e,0x8f,
+		0x7f,0x6f,0x6e,0x7e,0x7d,0x7c,0x6c,0x6d,0x5d,0x5c,0x4c,0x4d,0x4e,0x5e,0x5f,0x4f,0x3f,0x3e,0x2e,0x2f,0x1f,0x0f,0x0e,0x1e,0x1d,0x0d,0x0c,0x1c,0x2c,0x2d,0x3d,0x3c,
+		0x3b,0x3a,0x2a,0x2b,0x1b,0x0b,0x0a,0x1a,0x19,0x09,0x08,0x18,0x28,0x29,0x39,0x38,0x48,0x58,0x59,0x49,0x4a,0x4b,0x5b,0x5a,0x6a,0x6b,0x7b,0x7a,0x79,0x69,0x68,0x78,
+		0x77,0x67,0x66,0x76,0x75,0x74,0x64,0x65,0x55,0x54,0x44,0x45,0x46,0x56,0x57,0x47,0x37,0x36,0x26,0x27,0x17,0x07,0x06,0x16,0x15,0x05,0x04,0x14,0x24,0x25,0x35,0x34,
+		0x33,0x32,0x22,0x23,0x13,0x03,0x02,0x12,0x11,0x01,0x00,0x10,0x20,0x21,0x31,0x30,0x40,0x50,0x51,0x41,0x42,0x43,0x53,0x52,0x62,0x63,0x73,0x72,0x71,0x61,0x60,0x70,
+		0x80,0x81,0x91,0x90,0xa0,0xb0,0xb1,0xa1,0xa2,0xb2,0xb3,0xa3,0x93,0x92,0x82,0x83,0x84,0x94,0x95,0x85,0x86,0x87,0x97,0x96,0xa6,0xa7,0xb7,0xb6,0xb5,0xa5,0xa4,0xb4,
+		0xc4,0xd4,0xd5,0xc5,0xc6,0xc7,0xd7,0xd6,0xe6,0xe7,0xf7,0xf6,0xf5,0xe5,0xe4,0xf4,0xf3,0xf2,0xe2,0xe3,0xd3,0xc3,0xc2,0xd2,0xd1,0xc1,0xc0,0xd0,0xe0,0xe1,0xf1,0xf0,
+		0x00,0x10,0x11,0x01,0x02,0x03,0x13,0x12,0x22,0x23,0x33,0x32,0x31,0x21,0x20,0x30,0x40,0x41,0x51,0x50,0x60,0x70,0x71,0x61,0x62,0x72,0x73,0x63,0x53,0x52,0x42,0x43,
+		0x44,0x45,0x55,0x54,0x64,0x74,0x75,0x65,0x66,0x76,0x77,0x67,0x57,0x56,0x46,0x47,0x37,0x27,0x26,0x36,0x35,0x34,0x24,0x25,0x15,0x14,0x04,0x05,0x06,0x16,0x17,0x07,
+		0x08,0x09,0x19,0x18,0x28,0x38,0x39,0x29,0x2a,0x3a,0x3b,0x2b,0x1b,0x1a,0x0a,0x0b,0x0c,0x1c,0x1d,0x0d,0x0e,0x0f,0x1f,0x1e,0x2e,0x2f,0x3f,0x3e,0x3d,0x2d,0x2c,0x3c,
+		0x4c,0x5c,0x5d,0x4d,0x4e,0x4f,0x5f,0x5e,0x6e,0x6f,0x7f,0x7e,0x7d,0x6d,0x6c,0x7c,0x7b,0x7a,0x6a,0x6b,0x5b,0x4b,0x4a,0x5a,0x59,0x49,0x48,0x58,0x68,0x69,0x79,0x78,
+		0x88,0x89,0x99,0x98,0xa8,0xb8,0xb9,0xa9,0xaa,0xba,0xbb,0xab,0x9b,0x9a,0x8a,0x8b,0x8c,0x9c,0x9d,0x8d,0x8e,0x8f,0x9f,0x9e,0xae,0xaf,0xbf,0xbe,0xbd,0xad,0xac,0xbc,
+		0xcc,0xdc,0xdd,0xcd,0xce,0xcf,0xdf,0xde,0xee,0xef,0xff,0xfe,0xfd,0xed,0xec,0xfc,0xfb,0xfa,0xea,0xeb,0xdb,0xcb,0xca,0xda,0xd9,0xc9,0xc8,0xd8,0xe8,0xe9,0xf9,0xf8,
+		0xf7,0xe7,0xe6,0xf6,0xf5,0xf4,0xe4,0xe5,0xd5,0xd4,0xc4,0xc5,0xc6,0xd6,0xd7,0xc7,0xb7,0xb6,0xa6,0xa7,0x97,0x87,0x86,0x96,0x95,0x85,0x84,0x94,0xa4,0xa5,0xb5,0xb4,
+		0xb3,0xb2,0xa2,0xa3,0x93,0x83,0x82,0x92,0x91,0x81,0x80,0x90,0xa0,0xa1,0xb1,0xb0,0xc0,0xd0,0xd1,0xc1,0xc2,0xc3,0xd3,0xd2,0xe2,0xe3,0xf3,0xf2,0xf1,0xe1,0xe0,0xf0
+	};
+
+	sci_glb_set(REG_AON_APB_APB_EB0, BIT(25));	//enable MM module
+	sci_glb_set(REG_MM_AHB_AHB_EB, BIT(8));		//enable VPP module
+	sci_glb_set(REG_MM_AHB_GEN_CKG_CFG, BIT(9));	//enable VPP AXI
+
+	TB_REG_SET(DITH_MEM_SW, 0x00);
+	memcpy(DITH_PATH_TABLE, &dither_path_table, DITHER_PATH_SIZE);
+
+	TB_REG_SET(RB_COEF_CFG0, 0x0);
+	TB_REG_SET(RB_COEF_CFG1, 0x0);
+	TB_REG_SET(RB_COEF_CFG2, 0xC0C0B0B0);
+	TB_REG_SET(RB_COEF_CFG3, 0xE0D0D0C0);
+	TB_REG_SET(G_COEF_CFG0, 0x0);
+	TB_REG_SET(G_COEF_CFG1, 0x0);
+	TB_REG_SET(G_COEF_CFG2, 0xC0C0B0B0);
+	TB_REG_SET(G_COEF_CFG3, 0xE0D0D0C0);
+	TB_REG_SET(DITH_MEM_SW, 0x01);
+
+	VPP_Dither_IRQENABLE_SET(0);
+	VPP_Dither_IRQSTATUS_Clear();
+	VPP_Dither_IRQENABLE_SET(1);
+}
+#if 0
+int VPP_Dither_Clock_Init(struct vpp_dither_device *dev)
+{
+	int ret = 0;
+	struct clk *clk_mm_i;
+	struct clk *clk_vpp_i;
+	struct clk *clk_vpp_parent_i;
+
+#ifdef CONFIG_OF
+	clk_mm_i = of_clk_get_by_name(dev->of_dev->of_node, "clk_mm_i");
+#else
+	clk_mm_i = clk_get(NULL, "clk_mm_i");
+#endif
+	if(IS_ERR(clk_mm_i))
+	{
+		printk(KERN_ERR "[vpp_dither] can't get clock [%s]\n", "clk_mm_i");
+		ret = -EINVAL;
+		goto out;
+	}
+	else
+	{
+		dev->clk_mm = clk_mm_i;
+		printk(KERN_INFO "[vpp_dither] get clk_mm ok!\n");
+	}
+
+	ret = clk_enable(dev->clk_mm);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] mm_clk:clk_enable failed!\n");
+		return ret;
+	}
+
+#ifdef CONFIG_OF
+	clk_vpp_i = of_clk_get_by_name(dev->of_dev->of_node, "clk_vpp");
+#else
+	clk_vpp_i = clk_get(NULL, "clk_vpp");
+#endif
+	if(IS_ERR(clk_vpp_i))
+	{
+		printk(KERN_ERR "[vpp_dither] can't get clock [%s]\n", "clk_vpp");
+		ret = -EINVAL;
+		goto out;
+	}
+	else
+	{
+		dev->clk_vpp = clk_vpp_i;
+		printk(KERN_INFO "[vpp_dither] get clk_vpp ok!\n");
+	}
+
+	clk_vpp_parent_i = clk_get(NULL, "clk_256m");
+	if(IS_ERR(clk_vpp_parent_i))
+	{
+		printk(KERN_ERR "[vpp_dither] can't get clock [%s]\n", "clk_vpp_parent");
+		ret = -EINVAL;
+		goto out;
+	}
+	else
+	{
+		dev->clk_vpp_parent = clk_vpp_parent_i;
+		printk(KERN_INFO "[vpp_dither] get clk_vpp_parent ok!\n");
+	}
+
+	ret = clk_set_parent(dev->clk_vpp, dev->clk_vpp_parent);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] clk_set_parent failed!\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	return 0;
+
+out:
+	if(dev->clk_mm)
+		clk_put(dev->clk_mm);
+
+	if(dev->clk_vpp)
+		clk_put(dev->clk_vpp);
+
+	if(dev->clk_vpp_parent)
+		clk_put(dev->clk_vpp_parent);
+
+	return ret;
+}
+
+void VPP_Dither_Clock_Enable(struct vpp_dither_device *dev)
+{
+	int ret = 0;
+
+	if(dev->clk_vpp == NULL)
+	{
+		printk(KERN_ERR "[vpp_dither] clk not init yet!\n");
+		return;
+	}
+
+	ret = clk_prepare_enable(dev->clk_vpp);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] enable clock fail!\n");
+		return;
+	}
+}
+
+void VPP_Dither_Clock_Disable(struct vpp_dither_device *dev)
+{
+	if(dev->clk_vpp == NULL)
+	{
+		printk(KERN_ERR "[vpp_dither] clk not init yet!\n");
+		return;
+	}
+
+	clk_disable_unprepare(dev->clk_vpp);
+}
+#endif
+void VPP_Dither_Module_Enable()
+{
+	unsigned int reg_value = 0;
+
+	reg_value = TB_REG_GET(VPP_CFG);
+	reg_value |= 0x01;
+	TB_REG_SET(VPP_CFG, reg_value);
+}
+
+void VPP_Dither_Module_Disable()
+{
+	unsigned int reg_value = 0;
+
+	reg_value = TB_REG_GET(VPP_CFG);
+	reg_value &= 0xFFFFFFFE;
+	TB_REG_SET(VPP_CFG, reg_value);
+}
+
+void VPP_Dither_IRQSTATUS_Clear()
+{
+	TB_REG_SET(VPP_INT_CLR, 0x01);
+}
+
+void VPP_Dither_IRQENABLE_SET(unsigned char irq_flag)
+{
+	unsigned int reg_value = 0;
+
+	reg_value = TB_REG_GET(VPP_INT_MSK);
+
+	if(irq_flag == 1)
+		reg_value |= 0x01;
+	else
+		reg_value &= 0xFFFFFFFE;
+
+	TB_REG_SET(VPP_INT_MSK, reg_value);
+}
+
+void VPP_Dither_Init(struct vpp_dither_device *dev)
+{
+	//clock enable
+//	VPP_Dither_Clock_Enable(dev);
+
+	//module enable
+	VPP_Dither_Module_Enable();
+
+	//irq enable
+//	VPP_Dither_IRQENABLE_SET(0);
+//	VPP_Dither_IRQSTATUS_Clear();
+//	VPP_Dither_IRQENABLE_SET(1);
+}
+
+void VPP_Dither_Deinit(struct vpp_dither_device *dev)
+{
+	//module disable
+	VPP_Dither_Module_Disable();
+
+	//irq disable
+//	VPP_Dither_IRQENABLE_SET(0);
+//	VPP_Dither_IRQSTATUS_Clear();
+
+	//clock disable
+//	VPP_Dither_Clock_Disable(dev);
+}
+
+void VPP_Dither_Module_Reset()
+{
+	sci_glb_set(REG_MM_AHB_AHB_RST, BIT(15));
+	udelay(10);
+	sci_glb_clr(REG_MM_AHB_AHB_RST, BIT(15));
+}
+
+void VPP_Dither_Info_Config(struct fb_to_vpp_info *fb_info, struct vpp_dither_device *dev)
+{
+	dev->reg_info.output_format = fb_info->output_format;	//RGB666
+	dev->reg_info.pixel_type = fb_info->pixel_type;			//one pixel one word
+	dev->reg_info.input_format = fb_info->input_format;		//ARGB888
+	dev->reg_info.block_mod = 0;
+	dev->reg_info.img_width = fb_info->img_width;
+	dev->reg_info.img_height = fb_info->img_height;
+	dev->reg_info.src_addr = fb_info->buf_addr;
+	dev->reg_info.des_addr = fb_info->buf_addr;
+}
+
+void VPP_Dither_CFG_Config(struct vpp_dither_device *dev)
+{
+	unsigned int reg_value = 0;
+
+	if(NULL == dev)
+	{
+		printk(KERN_ERR "[vpp_dither] %s, dev is null!\n",__func__);
+		return 0;
+	}
+
+	if(dev->reg_info.output_format == 1)		//RGB666
+		dev->reg_info.pixel_type = 1;			//one pixel one word
+
+	reg_value |= dev->reg_info.output_format << 0;
+	reg_value |= dev->reg_info.pixel_type << 1;
+	reg_value |= dev->reg_info.input_format << 2;
+	reg_value |= dev->reg_info.block_mod << 3;
+	TB_REG_SET(DITH_PATH_CFG, reg_value);
+
+	reg_value = 0;
+	reg_value |= dev->reg_info.img_width << 0;
+	reg_value |= dev->reg_info.img_height << 16;
+	TB_REG_SET(DITH_IMG_SIZE, reg_value);
+
+	reg_value = dev->reg_info.src_addr >> 3;
+	TB_REG_SET(DITH_SRC_ADDR, reg_value);
+
+	reg_value = dev->reg_info.des_addr >> 3;
+	TB_REG_SET(DITH_DES_ADDR, reg_value);
+}
+
+int VPP_Dither_Map(struct vpp_dither_device *dev)
+{
+	return 0;
+}
+
+int VPP_Dither_Unmap(struct vpp_dither_device *dev)
+{
+	return 0;
+}
+
+int irq_status_get()
+{
+	unsigned int irq_value = 0;
+
+	irq_value = TB_REG_GET(VPP_INT_STS);
+	if(irq_value & 0x01)
+		return 1;
+	else
+		return 0;
+}
+
+irqreturn_t VPP_Dither_IRQ_Handler(int irq, void *dev_id)
+{
+	struct vpp_dither_device *dev = dev_id;
+
+	if(1 == irq_status_get())
+	{
+		printk(KERN_INFO "[vpp_dither] %s enter!\n",__func__);
+
+		VPP_Dither_IRQENABLE_SET(0);
+		VPP_Dither_IRQSTATUS_Clear();
+		up(&dev->wait_interrupt_sem);
+
+		VPP_Dither_IRQENABLE_SET(1);
+		return IRQ_HANDLED;
+	}
+	else
+		return IRQ_NONE;
+}
+
+void VPP_Dither_Trigger()
+{
+	TB_REG_SET(DITH_PATH_START, 0x01);
+}
+
+unsigned int Dither_WORKSTATUS_Get()
+{
+	return TB_REG_GET(AXIM_STS);
+}
+
+void VPP_Dither_Wait_Finish()
+{
+	volatile unsigned int i = 0;
+	while(1)
+	{
+		if(Dither_WORKSTATUS_Get() == 0)
+			return;
+		else
+		{
+			msleep(1);
+			i++;
+			if(i >= 30)
+			{
+				printk(KERN_ERR "[vpp_dither] device is hane up!\n");
+				return;
+			}
+		}
+	}
+}
+
+/*
+	FB Interface
+*/
+int Do_Dither_Work(struct fb_to_vpp_info *fb_info)
+{
+	int ret = 0;
+	struct vpp_dither_device *dev = vpp_dither_ctx;
+
+	printk(KERN_INFO "[vpp_dither] %s enter!\n",__func__);
+
+	if(0 == dev->is_device_free)	//device busy
+	{
+		printk(KERN_ERR "[vpp_dither] %s, device is busy!\n",__func__);
+		return ret;
+	}
+
+	/*VPP_DITHER_SET_PARAM*/
+
+	ret = down_interruptible(&dev->hw_resource_sem);
+	dev->is_device_free = 0;
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] %s,wait hw sema interrupt by signal,return",__func__);
+		ret = -ERESTARTSYS;
+		goto exit;
+	}
+
+	VPP_Dither_Init(dev);
+	ret = VPP_Dither_Map(dev);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] %s, mmu map fail!\n",__func__);
+		ret = -EFAULT;
+		goto exit2;
+	}
+	VPP_Dither_Info_Config(fb_info, dev);
+	VPP_Dither_CFG_Config(dev);
+
+	/*VPP_DITHER_TRIGGER_RUN*/
+	VPP_Dither_Trigger();
+
+	/*VPP_DITHER_WAIT_FINISH*/
+	ret = down_timeout(&dev->wait_interrupt_sem, msecs_to_jiffies(30));
+	if(ret == 0)
+	{
+		printk(KERN_INFO "[vpp_dither] %s,wait done sema success!\n",__func__);
+	}
+	else if(ret == -ETIME)//timeout
+	{
+		printk(KERN_ERR "[vpp_dither] %s,wait done sema timeout!\n",__func__);
+		VPP_Dither_Module_Reset();
+		VPP_Dither_Early_Init();
+		ret = -EFAULT;
+		goto exit2;
+	}
+	else if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] %s,wait done sema interrupted by a signal!\n",__func__);
+		VPP_Dither_Module_Reset();
+		VPP_Dither_Early_Init();
+		ret = -EFAULT;
+		goto exit2;
+	}
+
+//	VPP_Dither_Wait_Finish();
+	VPP_Dither_Unmap(dev);
+	VPP_Dither_Deinit(dev);
+
+	up(&dev->hw_resource_sem);
+	dev->is_device_free = 1;
+
+	return ret;
+
+exit2:
+	VPP_Dither_Unmap(dev);
+	VPP_Dither_Deinit(dev);
+	sema_init(&dev->wait_interrupt_sem, 0);
+exit1:
+	up(&dev->hw_resource_sem);
+
+exit:
+	return ret;
+
+}
+
+
+
+
diff --git a/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.h b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.h
new file mode 100644
index 00000000..24617b6a
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_config.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _VPP_DITHER_CONFIG_H_
+#define _VPP_DITHER_CONFIG_H_
+
+#include <video/gsp_types_shark.h>
+#include <mach/sci_glb_regs.h>
+#include <mach/globalregs.h> //define IRQ_GSP_INT
+#include <linux/delay.h>
+#include <linux/clk.h>
+
+#define DITHER_PATH_SIZE	1024
+
+#define VPP_CLOCK_PARENT	("clk_vpp_parent")
+#define VPP_CLOCK_NAME		("clk_vpp")
+
+
+void VPP_Dither_Early_Init();
+
+int VPP_Dither_Clock_Init(struct vpp_dither_device *dev);
+
+void VPP_Dither_Clock_Enable(struct vpp_dither_device *dev);
+
+void VPP_Dither_Clock_Disable(struct vpp_dither_device *dev);
+
+void VPP_Dither_Module_Enable();
+
+void VPP_Dither_Module_Disable();
+
+void VPP_Dither_IRQSTATUS_Clear();
+
+void VPP_Dither_IRQENABLE_SET(unsigned char irq_flag);
+
+void VPP_Dither_Init(struct vpp_dither_device *dev);
+
+void VPP_Dither_Deinit(struct vpp_dither_device *dev);
+
+void VPP_Dither_Module_Reset();
+
+void VPP_Dither_Info_Config(struct fb_to_vpp_info *fb_info, struct vpp_dither_device *dev);
+
+void VPP_Dither_CFG_Config(struct vpp_dither_device *dev);
+
+int VPP_Dither_Map(struct vpp_dither_device *dev);
+
+int VPP_Dither_Unmap(struct vpp_dither_device *dev);
+
+int irq_status_get();
+
+irqreturn_t VPP_Dither_IRQ_Handler(int irq, void *dev_id);
+
+void VPP_Dither_Trigger();
+
+unsigned int Dither_WORKSTATUS_Get();
+
+void VPP_Dither_Wait_Finish();
+
+int Do_Dither_Work(struct fb_to_vpp_info *fb_info);
+
+
+
+#endif
+
+
diff --git a/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_drv.c b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_drv.c
new file mode 100644
index 00000000..8ec6ddc2
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_drv.c
@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include <linux/math64.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/kthread.h>
+#include <linux/io.h>
+#include <linux/pid.h>
+
+#ifdef CONFIG_OF
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/device.h>
+#endif
+
+#include <mach/hardware.h>
+#include <mach/arch_misc.h>
+#include <video/ion_sprd.h>
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+
+#include "vpp_dither_types.h"
+#include "vpp_dither_config.h"
+#define	DO_DITHER_WORK 0x01
+
+
+struct vpp_dither_device *vpp_dither_ctx = NULL;
+
+static int vpp_dither_open(struct inode *inode, struct file *filp)
+{
+	int ret = 0;
+	struct vpp_dither_device *dev = vpp_dither_ctx;
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+
+	if(NULL == dev)
+	{
+		printk(KERN_ERR "[vpp_dither] dev is null!\n");
+		ret = -ENODEV;
+		goto exit;
+	}
+	filp->private_data = dev;
+
+exit:
+	return ret;
+}
+
+static int vpp_dither_release(struct inode *inode, struct file *filp)
+{
+	struct vpp_dither_device *dev = (vpp_dither_device *)filp->private_data;
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+	if(NULL == dev)
+	{
+		printk(KERN_ERR "[vpp_dither] vpp_dither_release error!--dev is null!\n");
+		return -ENODEV;
+	}
+	filp->private_data = NULL;
+	return 0;
+}
+
+static ssize_t vpp_dither_write(struct file *filp, const char __user *buf, size_t size, loff_t *ppos)
+{
+	struct vpp_dither_device *dev = (vpp_dither_device *)filp->private_data;
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+	if(NULL == dev)
+	{
+		printk(KERN_ERR "[vpp_dither] %s:error--dev is null!\n",__func__);
+		return -ENODEV;
+	}
+	return 1;
+}
+
+static ssize_t vpp_dither_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
+{
+	struct vpp_dither_device *dev = (vpp_dither_device *)filp->private_data;
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+	if(NULL == dev)
+	{
+		printk(KERN_ERR "[vpp_dither] %s:error--dev is null!\n",__func__);
+		return -ENODEV;
+	}
+	return 1;
+}
+
+static long vpp_dither_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+
+	int ret = 0;
+
+	unsigned int param_size = _IOC_SIZE(cmd);
+	struct vpp_dither_device *dev = (vpp_dither_device *)filp->private_data;
+
+//	printk(KERN_INFO "[vpp_dither] %s:,cmd:0x%08x\n",__func__, cmd);
+
+	if(dev->s_suspend_resume_flag == 1)
+	{
+		printk(KERN_ERR "[vpp_dither] %s,in suspend, ioctl just return",__func__);
+		return ret;
+	}
+	switch(cmd)
+	{
+		case DO_DITHER_WORK:
+			/*VPP_DITHER_SET_PARAM*/
+			if(param_size > sizeof(struct vpp_dither_reg_info) || param_size == 0)
+			{
+				printk(KERN_ERR "[vpp_dither] %s, param_size error!\n");
+				return -EFAULT;
+			}
+			else
+			{
+				ret = down_interruptible(&dev->hw_resource_sem);
+				if(ret)
+				{
+					printk(KERN_ERR "[vpp_dither] %s,wait gsp-hw sema interrupt by signal,return",__func__);
+					ret = -ERESTARTSYS;
+					goto exit;
+				}
+
+				ret = copy_from_user((void*)&dev->reg_info, (void*)arg, param_size);
+				if(ret)
+				{
+					printk(KERN_ERR "[vpp_dither] %s,copy_params_from_user failed!\n",__func__);
+					ret = -EFAULT;
+					goto exit1;
+				}
+				else
+				{
+					printk(KERN_INFO "[vpp_dither] %s,copy_params_from_user success!\n",__func__);
+					VPP_Dither_Init(dev);
+					ret = VPP_Dither_Map(dev);
+					if(ret)
+					{
+						printk(KERN_ERR "[vpp_dither] %s, mmu map fail!\n",__func__);
+						ret = -EFAULT;
+						goto exit2;
+					}
+
+					VPP_Dither_CFG_Config(dev);
+				}
+			}
+
+			/*VPP_DITHER_TRIGGER_RUN*/
+//			printk(KERN_INFO "[vpp_dither] %s,trigger to run!\n",__func__);
+			VPP_Dither_Trigger();
+
+			/*VPP_DITHER_WAIT_FINISH*/
+//			printk(KERN_INFO "[vpp_dither] %s,wait finish!\n",__func__);
+			ret = down_timeout(&dev->wait_interrupt_sem, msecs_to_jiffies(30));
+			if(ret == 0)
+			{
+				printk(KERN_INFO "[vpp_dither] %s,wait done sema success!\n",__func__);
+			}
+			else if(ret == -ETIME)//timeout
+			{
+				printk(KERN_ERR "[vpp_dither] %s,wait done sema timeout!\n",__func__);
+				VPP_Dither_Module_Reset();
+				VPP_Dither_Early_Init();
+				ret = -EFAULT;
+
+				goto exit2;
+			}
+			else if(ret)
+			{
+				printk(KERN_ERR "[vpp_dither] %s,wait done sema interrupted by a signal!\n",__func__);
+				VPP_Dither_Module_Reset();
+				VPP_Dither_Early_Init();
+				ret = -EFAULT;
+
+				goto exit2;
+			}
+
+//			VPP_Dither_Wait_Finish();
+			VPP_Dither_Unmap(dev);
+			VPP_Dither_Deinit(dev);
+			up(&dev->hw_resource_sem);
+
+			break;
+
+		default:
+			ret = -EINVAL;
+
+	}
+	return ret;
+
+exit2:
+	VPP_Dither_Unmap(dev);
+	VPP_Dither_Deinit(dev);
+	sema_init(&dev->wait_interrupt_sem, 0);
+exit1:
+	up(&dev->hw_resource_sem);
+exit:
+
+	return ret;
+}
+
+static struct file_operations vpp_dither_fops =
+{
+	.owner = THIS_MODULE,
+	.open = vpp_dither_open,
+	.release = vpp_dither_release,
+	.write = vpp_dither_write,
+	.read = vpp_dither_read,
+	.unlocked_ioctl = vpp_dither_ioctl,
+};
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+static void vpp_dither_early_suspend(struct early_suspend *es)
+{
+	struct vpp_dither_device *dev = container_of(es, struct vpp_dither_device, early_suspend);
+
+	down(&dev->hw_resource_sem);
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+
+	VPP_Dither_Module_Disable(dev);
+//	VPP_Dither_Clock_Disable(dev);
+	dev->s_suspend_resume_flag = 1;
+
+	up(&dev->hw_resource_sem);
+}
+
+static void vpp_dither_late_resume(struct early_suspend *es)
+{
+	struct vpp_dither_device *dev = container_of(es, struct vpp_dither_device, early_suspend);
+
+	down(&dev->hw_resource_sem);
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+
+//	VPP_Dither_Clock_Enable(dev);
+	VPP_Dither_Module_Enable(dev);
+	VPP_Dither_Early_Init();
+	dev->s_suspend_resume_flag = 0;
+
+	up(&dev->hw_resource_sem);
+}
+
+#else
+
+static int vpp_dither_suspend(struct platform *pdev, pm_message_t state)
+{
+	struct vpp_dither_device *dev = platform_get_drvdata(pdev);
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+
+	down(&dev->hw_resource_sem);
+
+	VPP_Dither_Module_Disable(dev);
+//	VPP_Dither_Clock_Disable(dev);
+	dev->s_suspend_resume_flag = 1;
+
+	up(&dev->hw_resource_sem);
+	return 0;
+}
+
+static int vpp_dither_resume(struct platform_device *pdev)
+{
+	struct vpp_dither_device *dev = platform_get_drvdata(pdev);
+
+	printk(KERN_INFO "[vpp_dither] %s\n",__func__);
+
+	down(&dev->hw_resource_sem);
+
+//	VPP_Dither_Clock_Enable(dev);
+	VPP_Dither_Module_Enable(dev);
+	VPP_Dither_Early_Init();
+	dev->s_suspend_resume_flag = 0;
+
+	up(&dev->hw_resource_sem);
+	return 0;
+}
+#endif
+
+static int vpp_dither_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	struct vpp_dither_device *dev = NULL;
+
+#ifdef CONFIG_OF
+	struct resource r;
+#endif
+
+	printk(KERN_INFO "[vpp_dither] vpp_dither_probe enter!\n");
+
+	dev = kmalloc(sizeof(struct vpp_dither_device), GFP_KERNEL);
+	if(!dev)
+	{
+		printk(KERN_ERR "[vpp_dither] %s,fail to alloc memory!\n",__func__);
+		ret = -ENOMEM;
+		goto out;
+	}
+	memset(dev, 0, sizeof(struct vpp_dither_device));
+
+#ifdef CONFIG_OF
+	dev->of_dev = &(pdev->dev);
+	dev->irq_num = irq_of_parse_and_map(dev->of_dev->of_node, 0);
+
+	if(0 != of_address_to_resource(dev->of_dev->of_node, 0, &r))
+	{
+		printk(KERN_ERR "[vpp_dither] probe fail! (can't get register base address)\n");
+		goto out;
+	}
+	dev->reg_base_addr = r.start;
+	printk(KERN_INFO "[vpp_dither] irq_num = %d, reg_base_addr = 0x%x\n", dev->irq_num, dev->reg_base_addr);
+#else
+	dev->irq_num = VPP_DITHER_IRQ_NUM;
+	dev->reg_base_addr = VPP_DITHER_BASE_ADDR;
+#endif
+/*
+	ret = VPP_Dither_Clock_Init(dev);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] vpp clock init fail!\n");
+		goto out;
+	}
+	VPP_Dither_Clock_Enable(dev);*/
+
+	vpp_dither_ctx = dev;
+
+	VPP_Dither_Early_Init();
+
+//	VPP_Dither_Clock_Disable(dev);
+
+	dev->misc_dev.minor = MISC_DYNAMIC_MINOR,
+	dev->misc_dev.name = "sprd_vpp_dither",
+	dev->misc_dev.fops = &vpp_dither_fops,
+
+	ret = misc_register(&dev->misc_dev);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] can't register miscdev!\n");
+		goto out;
+	}
+
+	ret = request_irq(dev->irq_num, VPP_Dither_IRQ_Handler, IRQF_SHARED, "vpp_dither", dev);
+	if(ret)
+	{
+		printk(KERN_ERR "[vpp_dither] can't request irq %d\n", dev->irq_num);
+		goto out1;
+	}
+
+	dev->is_device_free = 1;	//device free
+	sema_init(&dev->hw_resource_sem, 1);
+	sema_init(&dev->wait_interrupt_sem, 0);
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+	dev->early_suspend.suspend = vpp_dither_early_suspend;
+	dev->early_suspend.resume = vpp_dither_late_resume;
+	dev->early_suspend.level = EARLY_SUSPEND_LEVEL_STOP_DRAWING;
+	register_early_suspend(&dev->early_suspend);
+#endif
+
+	platform_set_drvdata(pdev, dev);
+
+	printk(KERN_INFO "[vpp_dither] vpp_dither_probe out!\n");
+
+	return ret;
+
+out1:
+	misc_deregister(&dev->misc_dev);
+out:
+	return ret;
+}
+
+static int vpp_dither_remove(struct platform_device *pdev)
+{
+	struct vpp_dither_device *dev = platform_get_drvdata(pdev);
+	printk(KERN_INFO "[vpp_dither] vpp_dither_remove called!\n");
+
+	free_irq(dev->irq_num, dev);
+
+	misc_deregister(&dev->misc_dev);
+	kfree(dev);
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id vpp_dither_dt_ids[] =
+{
+	{.compatible = "sprd,sprd_vpp",},
+	{}
+};
+#endif
+
+static struct platform_driver vpp_dither_driver =
+{
+	.probe = vpp_dither_probe,
+#ifndef CONFIG_HAS_EARLYSUSPEND
+	.suspend = vpp_dither_suspend,
+	.resume = vpp_dither_resume,
+#endif
+	.remove = vpp_dither_remove,
+	.driver =
+	{
+		.owner = THIS_MODULE,
+		.name = "sprd_vpp_dither",
+
+#ifdef CONFIG_OF
+		.of_match_table = of_match_ptr(vpp_dither_dt_ids),
+#endif
+
+	}
+};
+
+static int __init vpp_dither_init(void)
+{
+	printk(KERN_INFO "[vpp_dither] vpp_dither_init enter!\n");
+
+	if(platform_driver_register(&vpp_dither_driver))
+	{
+		printk(KERN_ERR "[vpp_dither] platform driver register fail!\n");
+		return -1;
+	}
+	else
+	{
+		printk(KERN_INFO "[vpp_dither] platform driver register successful!\n");
+	}
+	return 0;
+}
+
+static void __exit vpp_dither_exit(void)
+{
+	platform_driver_unregister(&vpp_dither_driver);
+	printk(KERN_INFO "[vpp_dither] platform driver unregistered!\n");
+}
+
+module_init(vpp_dither_init);
+module_exit(vpp_dither_exit);
+
+MODULE_DESCRIPTION("VPP_Dither Driver");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_reg.h b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_reg.h
new file mode 100644
index 00000000..94991a73
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_reg.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _VPP_DITHER_REG_H_
+#define _VPP_DITHER_REG_H_
+
+extern struct vpp_dither_device *vpp_dither_ctx;
+
+#define VPP_REG_BASE	(vpp_dither_ctx->reg_base_addr)
+
+#define VPP_CFG			(VPP_REG_BASE + 0x0000)
+#define VPP_INT_STS		(VPP_REG_BASE + 0x0010)
+#define VPP_INT_MSK		(VPP_REG_BASE + 0x0014)
+#define VPP_INT_CLR		(VPP_REG_BASE + 0x0018)
+#define VPP_INT_RAW		(VPP_REG_BASE + 0x001C)
+
+#define AXIM_STS		(VPP_REG_BASE + 0x002C)
+
+#define DITH_PATH_CFG	(VPP_REG_BASE + 0x1000)
+#define DITH_PATH_START	(VPP_REG_BASE + 0x1004)
+#define DITH_IMG_SIZE	(VPP_REG_BASE + 0x1008)
+#define DITH_MEM_SW		(VPP_REG_BASE + 0x100C)
+#define DITH_SRC_ADDR	(VPP_REG_BASE + 0x1010)
+#define DITH_DES_ADDR	(VPP_REG_BASE + 0x1014)
+#define RB_COEF_CFG0	(VPP_REG_BASE + 0x1018)
+#define RB_COEF_CFG1	(VPP_REG_BASE + 0x101C)
+#define RB_COEF_CFG2	(VPP_REG_BASE + 0x1020)
+#define RB_COEF_CFG3	(VPP_REG_BASE + 0x1024)
+#define G_COEF_CFG0		(VPP_REG_BASE + 0x1028)
+#define G_COEF_CFG1		(VPP_REG_BASE + 0x102C)
+#define G_COEF_CFG2		(VPP_REG_BASE + 0x1030)
+#define G_COEF_CFG3		(VPP_REG_BASE + 0x1034)
+
+#define DITH_PATH_TABLE	(VPP_REG_BASE + 0x1400)
+
+#define MM_ENABLE		0x402E0000
+#define VPP_ENABLE		0x60D00000
+#define AXI_ENABLE		0x60D00008
+
+#endif
+
diff --git a/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_types.h b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_types.h
new file mode 100644
index 00000000..5c6fcfee
--- /dev/null
+++ b/drivers/misc/sprd_vpp/sprd_dither/vpp_dither_types.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _VPP_DITHER_TYPES_H_
+#define _VPP_DITHER_TYPES_H_
+
+#include <linux/types.h>
+#include <linux/earlysuspend.h>
+
+#define VPP_DITHER_IRQ_NUM		40
+#define VPP_DITHER_BASE_ADDR	0X61000000
+
+
+struct fb_to_vpp_info		//FB Interface
+{
+	unsigned int input_format;		//0:ARGB888		1:RGBA888
+	unsigned int output_format;		//0:RGB565		1:RGB666
+	unsigned int pixel_type;		//0:one pixel half word		1:one pixel one word
+	unsigned int img_width;
+	unsigned int img_height;
+	unsigned int buf_addr;			//buf address
+};
+
+struct vpp_dither_reg_info
+{
+	unsigned int input_format;		//ARGB888/RGBA888
+	unsigned int output_format;		//RGB565/RGB666
+	unsigned int pixel_type;		//half_word / one_word
+	unsigned int block_mod;
+	unsigned int img_width;
+	unsigned int img_height;
+	unsigned int src_addr;
+	unsigned int des_addr;
+};
+
+
+typedef struct vpp_dither_device
+{
+	unsigned int is_device_free;
+	unsigned int irq_num;
+	unsigned int s_suspend_resume_flag;
+	unsigned int reg_base_addr;
+	struct clk *clk_vpp;
+	struct clk *clk_mm;
+	struct clk *clk_vpp_parent;
+	struct semaphore hw_resource_sem;
+	struct semaphore wait_interrupt_sem;
+	struct vpp_dither_reg_info reg_info;
+	struct miscdevice misc_dev;
+#ifdef CONFIG_OF
+	struct device *of_dev;
+#endif
+
+#ifdef CONFIG_HAS_EARLYSUSPEND
+	struct early_suspend early_suspend;
+#endif
+}vpp_dither_device;
+
+#define TB_REG_GET(reg_addr)		(*(volatile unsigned int *)(reg_addr))
+#define TB_REG_SET(reg_addr, value)	*(volatile unsigned int *)(reg_addr) = (value)
+
+#endif
+
+
-- 
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