MX51: Add IPU driver for video support

The patch is a porting of the IPU Linux driver
developed by Freescale to have framebuffer
functionalities in u-boot. The port is based on
kernel 2.6.31 commit cc4fe714041805997b601fe8e5dd585d8a99297f,
as delivered by Freescale [i.MX BSP].
Most features are dropped from the original driver and
only LCD support is the goal of this porting.

Signed-off-by: Stefano Babic <sbabic@denx.de>

1 files changed, 1359 insertions, 0 deletions

diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c
new file mode 100644
index 0000000..11cf98d
--- /dev/null
+++ b/drivers/video/ipu_disp.c
@@ -0,0 +1,1359 @@
+/*
+ * Porting to u-boot:
+ *
+ * (C) Copyright 2010
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de
+ *
+ * Linux IPU driver for MX51:
+ *
+ * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+#include <linux/types.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/sys_proto.h>
+#include "ipu.h"
+#include "ipu_regs.h"
+
+enum csc_type_t {
+	RGB2YUV = 0,
+	YUV2RGB,
+	RGB2RGB,
+	YUV2YUV,
+	CSC_NONE,
+	CSC_NUM
+};
+
+struct dp_csc_param_t {
+	int mode;
+	void *coeff;
+};
+
+#define SYNC_WAVE 0
+
+/* DC display ID assignments */
+#define DC_DISP_ID_SYNC(di)	(di)
+#define DC_DISP_ID_SERIAL	2
+#define DC_DISP_ID_ASYNC	3
+
+int dmfc_type_setup;
+static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
+int g_di1_tvout;
+
+extern struct clk *g_ipu_clk;
+extern struct clk *g_di_clk[2];
+extern struct clk *g_pixel_clk[2];
+
+extern unsigned char g_ipu_clk_enabled;
+extern unsigned char g_dc_di_assignment[];
+
+void ipu_dmfc_init(int dmfc_type, int first)
+{
+	u32 dmfc_wr_chan, dmfc_dp_chan;
+
+	if (first) {
+		if (dmfc_type_setup > dmfc_type)
+			dmfc_type = dmfc_type_setup;
+		else
+			dmfc_type_setup = dmfc_type;
+
+		/* disable DMFC-IC channel*/
+		__raw_writel(0x2, DMFC_IC_CTRL);
+	} else if (dmfc_type_setup >= DMFC_HIGH_RESOLUTION_DC) {
+		printf("DMFC high resolution has set, will not change\n");
+		return;
+	} else
+		dmfc_type_setup = dmfc_type;
+
+	if (dmfc_type == DMFC_HIGH_RESOLUTION_DC) {
+		/* 1 - segment 0~3;
+		 * 5B - segement 4, 5;
+		 * 5F - segement 6, 7;
+		 * 1C, 2C and 6B, 6F unused;
+		 */
+		debug("IPU DMFC DC HIGH RES: 1(0~3), 5B(4,5), 5F(6,7)\n");
+		dmfc_wr_chan = 0x00000088;
+		dmfc_dp_chan = 0x00009694;
+		dmfc_size_28 = 256 * 4;
+		dmfc_size_29 = 0;
+		dmfc_size_24 = 0;
+		dmfc_size_27 = 128 * 4;
+		dmfc_size_23 = 128 * 4;
+	} else if (dmfc_type == DMFC_HIGH_RESOLUTION_DP) {
+		/* 1 - segment 0, 1;
+		 * 5B - segement 2~5;
+		 * 5F - segement 6,7;
+		 * 1C, 2C and 6B, 6F unused;
+		 */
+		debug("IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)\n");
+		dmfc_wr_chan = 0x00000090;
+		dmfc_dp_chan = 0x0000968a;
+		dmfc_size_28 = 128 * 4;
+		dmfc_size_29 = 0;
+		dmfc_size_24 = 0;
+		dmfc_size_27 = 128 * 4;
+		dmfc_size_23 = 256 * 4;
+	} else if (dmfc_type == DMFC_HIGH_RESOLUTION_ONLY_DP) {
+		/* 5B - segement 0~3;
+		 * 5F - segement 4~7;
+		 * 1, 1C, 2C and 6B, 6F unused;
+		 */
+		debug("IPU DMFC ONLY-DP HIGH RES: 5B(0~3), 5F(4~7)\n");
+		dmfc_wr_chan = 0x00000000;
+		dmfc_dp_chan = 0x00008c88;
+		dmfc_size_28 = 0;
+		dmfc_size_29 = 0;
+		dmfc_size_24 = 0;
+		dmfc_size_27 = 256 * 4;
+		dmfc_size_23 = 256 * 4;
+	} else {
+		/* 1 - segment 0, 1;
+		 * 5B - segement 4, 5;
+		 * 5F - segement 6, 7;
+		 * 1C, 2C and 6B, 6F unused;
+		 */
+		debug("IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)\n");
+		dmfc_wr_chan = 0x00000090;
+		dmfc_dp_chan = 0x00009694;
+		dmfc_size_28 = 128 * 4;
+		dmfc_size_29 = 0;
+		dmfc_size_24 = 0;
+		dmfc_size_27 = 128 * 4;
+		dmfc_size_23 = 128 * 4;
+	}
+	__raw_writel(dmfc_wr_chan, DMFC_WR_CHAN);
+	__raw_writel(0x202020F6, DMFC_WR_CHAN_DEF);
+	__raw_writel(dmfc_dp_chan, DMFC_DP_CHAN);
+	/* Enable chan 5 watermark set at 5 bursts and clear at 7 bursts */
+	__raw_writel(0x2020F6F6, DMFC_DP_CHAN_DEF);
+}
+
+void ipu_dmfc_set_wait4eot(int dma_chan, int width)
+{
+	u32 dmfc_gen1 = __raw_readl(DMFC_GENERAL1);
+
+	if (width >= HIGH_RESOLUTION_WIDTH) {
+		if (dma_chan == 23)
+			ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DP, 0);
+		else if (dma_chan == 28)
+			ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DC, 0);
+	}
+
+	if (dma_chan == 23) { /*5B*/
+		if (dmfc_size_23 / width > 3)
+			dmfc_gen1 |= 1UL << 20;
+		else
+			dmfc_gen1 &= ~(1UL << 20);
+	} else if (dma_chan == 24) { /*6B*/
+		if (dmfc_size_24 / width > 1)
+			dmfc_gen1 |= 1UL << 22;
+		else
+			dmfc_gen1 &= ~(1UL << 22);
+	} else if (dma_chan == 27) { /*5F*/
+		if (dmfc_size_27 / width > 2)
+			dmfc_gen1 |= 1UL << 21;
+		else
+			dmfc_gen1 &= ~(1UL << 21);
+	} else if (dma_chan == 28) { /*1*/
+		if (dmfc_size_28 / width > 2)
+			dmfc_gen1 |= 1UL << 16;
+		else
+			dmfc_gen1 &= ~(1UL << 16);
+	} else if (dma_chan == 29) { /*6F*/
+		if (dmfc_size_29 / width > 1)
+			dmfc_gen1 |= 1UL << 23;
+		else
+			dmfc_gen1 &= ~(1UL << 23);
+	}
+
+	__raw_writel(dmfc_gen1, DMFC_GENERAL1);
+}
+
+static void ipu_di_data_wave_config(int di,
+				     int wave_gen,
+				     int access_size, int component_size)
+{
+	u32 reg;
+	reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
+	    (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
+	__raw_writel(reg, DI_DW_GEN(di, wave_gen));
+}
+
+static void ipu_di_data_pin_config(int di, int wave_gen, int di_pin, int set,
+				    int up, int down)
+{
+	u32 reg;
+
+	reg = __raw_readl(DI_DW_GEN(di, wave_gen));
+	reg &= ~(0x3 << (di_pin * 2));
+	reg |= set << (di_pin * 2);
+	__raw_writel(reg, DI_DW_GEN(di, wave_gen));
+
+	__raw_writel((down << 16) | up, DI_DW_SET(di, wave_gen, set));
+}
+
+static void ipu_di_sync_config(int di, int wave_gen,
+				int run_count, int run_src,
+				int offset_count, int offset_src,
+				int repeat_count, int cnt_clr_src,
+				int cnt_polarity_gen_en,
+				int cnt_polarity_clr_src,
+				int cnt_polarity_trigger_src,
+				int cnt_up, int cnt_down)
+{
+	u32 reg;
+
+	if ((run_count >= 0x1000) || (offset_count >= 0x1000) ||
+		(repeat_count >= 0x1000) ||
+		(cnt_up >= 0x400) || (cnt_down >= 0x400)) {
+		printf("DI%d counters out of range.\n", di);
+		return;
+	}
+
+	reg = (run_count << 19) | (++run_src << 16) |
+	    (offset_count << 3) | ++offset_src;
+	__raw_writel(reg, DI_SW_GEN0(di, wave_gen));
+	reg = (cnt_polarity_gen_en << 29) | (++cnt_clr_src << 25) |
+	    (++cnt_polarity_trigger_src << 12) | (++cnt_polarity_clr_src << 9);
+	reg |= (cnt_down << 16) | cnt_up;
+	if (repeat_count == 0) {
+		/* Enable auto reload */
+		reg |= 0x10000000;
+	}
+	__raw_writel(reg, DI_SW_GEN1(di, wave_gen));
+	reg = __raw_readl(DI_STP_REP(di, wave_gen));
+	reg &= ~(0xFFFF << (16 * ((wave_gen - 1) & 0x1)));
+	reg |= repeat_count << (16 * ((wave_gen - 1) & 0x1));
+	__raw_writel(reg, DI_STP_REP(di, wave_gen));
+}
+
+static void ipu_dc_map_config(int map, int byte_num, int offset, int mask)
+{
+	int ptr = map * 3 + byte_num;
+	u32 reg;
+
+	reg = __raw_readl(DC_MAP_CONF_VAL(ptr));
+	reg &= ~(0xFFFF << (16 * (ptr & 0x1)));
+	reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
+	__raw_writel(reg, DC_MAP_CONF_VAL(ptr));
+
+	reg = __raw_readl(DC_MAP_CONF_PTR(map));
+	reg &= ~(0x1F << ((16 * (map & 0x1)) + (5 * byte_num)));
+	reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
+	__raw_writel(reg, DC_MAP_CONF_PTR(map));
+}
+
+static void ipu_dc_map_clear(int map)
+{
+	u32 reg = __raw_readl(DC_MAP_CONF_PTR(map));
+	__raw_writel(reg & ~(0xFFFF << (16 * (map & 0x1))),
+		     DC_MAP_CONF_PTR(map));
+}
+
+static void ipu_dc_write_tmpl(int word, u32 opcode, u32 operand, int map,
+			       int wave, int glue, int sync)
+{
+	u32 reg;
+	int stop = 1;
+
+	reg = sync;
+	reg |= (glue << 4);
+	reg |= (++wave << 11);
+	reg |= (++map << 15);
+	reg |= (operand << 20) & 0xFFF00000;
+	__raw_writel(reg, ipu_dc_tmpl_reg + word * 2);
+
+	reg = (operand >> 12);
+	reg |= opcode << 4;
+	reg |= (stop << 9);
+	__raw_writel(reg, ipu_dc_tmpl_reg + word * 2 + 1);
+}
+
+static void ipu_dc_link_event(int chan, int event, int addr, int priority)
+{
+	u32 reg;
+
+	reg = __raw_readl(DC_RL_CH(chan, event));
+	reg &= ~(0xFFFF << (16 * (event & 0x1)));
+	reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
+	__raw_writel(reg, DC_RL_CH(chan, event));
+}
+
+/* Y = R *  1.200 + G *  2.343 + B *  .453 + 0.250;
+ * U = R * -.672 + G * -1.328 + B *  2.000 + 512.250.;
+ * V = R *  2.000 + G * -1.672 + B * -.328 + 512.250.;
+ */
+static const int rgb2ycbcr_coeff[5][3] = {
+	{0x4D, 0x96, 0x1D},
+	{0x3D5, 0x3AB, 0x80},
+	{0x80, 0x395, 0x3EB},
+	{0x0000, 0x0200, 0x0200},	/* B0, B1, B2 */
+	{0x2, 0x2, 0x2},	/* S0, S1, S2 */
+};
+
+/* R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
+ * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
+ * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
+ */
+static const int ycbcr2rgb_coeff[5][3] = {
+	{0x095, 0x000, 0x0CC},
+	{0x095, 0x3CE, 0x398},
+	{0x095, 0x0FF, 0x000},
+	{0x3E42, 0x010A, 0x3DD6},	/*B0,B1,B2 */
+	{0x1, 0x1, 0x1},	/*S0,S1,S2 */
+};
+
+#define mask_a(a) ((u32)(a) & 0x3FF)
+#define mask_b(b) ((u32)(b) & 0x3FFF)
+
+/* Pls keep S0, S1 and S2 as 0x2 by using this convertion */
+static int rgb_to_yuv(int n, int red, int green, int blue)
+{
+	int c;
+	c = red * rgb2ycbcr_coeff[n][0];
+	c += green * rgb2ycbcr_coeff[n][1];
+	c += blue * rgb2ycbcr_coeff[n][2];
+	c /= 16;
+	c += rgb2ycbcr_coeff[3][n] * 4;
+	c += 8;
+	c /= 16;
+	if (c < 0)
+		c = 0;
+	if (c > 255)
+		c = 255;
+	return c;
+}
+
+/*
+ * Row is for BG:	RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
+ * Column is for FG:	RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
+ */
+static struct dp_csc_param_t dp_csc_array[CSC_NUM][CSC_NUM] = {
+	{
+		{DP_COM_CONF_CSC_DEF_BOTH, &rgb2ycbcr_coeff},
+		{0, 0},
+		{0, 0},
+		{DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff},
+		{DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff}
+	},
+	{
+		{0, 0},
+		{DP_COM_CONF_CSC_DEF_BOTH, &ycbcr2rgb_coeff},
+		{DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff},
+		{0, 0},
+		{DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff}
+	},
+	{
+		{0, 0},
+		{DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
+		{0, 0},
+		{0, 0},
+		{0, 0}
+	},
+	{
+		{DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
+		{0, 0},
+		{0, 0},
+		{0, 0},
+		{0, 0}
+	},
+	{
+		{DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
+		{DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
+		{0, 0},
+		{0, 0},
+		{0, 0}
+	}
+};
+
+static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE;
+static int color_key_4rgb = 1;
+
+void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param,
+			unsigned char srm_mode_update)
+{
+	u32 reg;
+	const int (*coeff)[5][3];
+
+	if (dp_csc_param.mode >= 0) {
+		reg = __raw_readl(DP_COM_CONF(dp));
+		reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+		reg |= dp_csc_param.mode;
+		__raw_writel(reg, DP_COM_CONF(dp));
+	}
+
+	coeff = dp_csc_param.coeff;
+
+	if (coeff) {
+		__raw_writel(mask_a((*coeff)[0][0]) |
+				(mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0(dp));
+		__raw_writel(mask_a((*coeff)[0][2]) |
+				(mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1(dp));
+		__raw_writel(mask_a((*coeff)[1][1]) |
+				(mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2(dp));
+		__raw_writel(mask_a((*coeff)[2][0]) |
+				(mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3(dp));
+		__raw_writel(mask_a((*coeff)[2][2]) |
+				(mask_b((*coeff)[3][0]) << 16) |
+				((*coeff)[4][0] << 30), DP_CSC_0(dp));
+		__raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) |
+				(mask_b((*coeff)[3][2]) << 16) |
+				((*coeff)[4][2] << 30), DP_CSC_1(dp));
+	}
+
+	if (srm_mode_update) {
+		reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
+		__raw_writel(reg, IPU_SRM_PRI2);
+	}
+}
+
+int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
+		 uint32_t out_pixel_fmt)
+{
+	int in_fmt, out_fmt;
+	int dp;
+	int partial = 0;
+	uint32_t reg;
+
+	if (channel == MEM_FG_SYNC) {
+		dp = DP_SYNC;
+		partial = 1;
+	} else if (channel == MEM_BG_SYNC) {
+		dp = DP_SYNC;
+		partial = 0;
+	} else if (channel == MEM_BG_ASYNC0) {
+		dp = DP_ASYNC0;
+		partial = 0;
+	} else {
+		return -EINVAL;
+	}
+
+	in_fmt = format_to_colorspace(in_pixel_fmt);
+	out_fmt = format_to_colorspace(out_pixel_fmt);
+
+	if (partial) {
+		if (in_fmt == RGB) {
+			if (out_fmt == RGB)
+				fg_csc_type = RGB2RGB;
+			else
+				fg_csc_type = RGB2YUV;
+		} else {
+			if (out_fmt == RGB)
+				fg_csc_type = YUV2RGB;
+			else
+				fg_csc_type = YUV2YUV;
+		}
+	} else {
+		if (in_fmt == RGB) {
+			if (out_fmt == RGB)
+				bg_csc_type = RGB2RGB;
+			else
+				bg_csc_type = RGB2YUV;
+		} else {
+			if (out_fmt == RGB)
+				bg_csc_type = YUV2RGB;
+			else
+				bg_csc_type = YUV2YUV;
+		}
+	}
+
+	/* Transform color key from rgb to yuv if CSC is enabled */
+	reg = __raw_readl(DP_COM_CONF(dp));
+	if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) &&
+		(((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
+		((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
+		((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
+		((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) {
+		int red, green, blue;
+		int y, u, v;
+		uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) &
+			0xFFFFFFL;
+
+		debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n",
+			color_key);
+
+		red = (color_key >> 16) & 0xFF;
+		green = (color_key >> 8) & 0xFF;
+		blue = color_key & 0xFF;
+
+		y = rgb_to_yuv(0, red, green, blue);
+		u = rgb_to_yuv(1, red, green, blue);
+		v = rgb_to_yuv(2, red, green, blue);
+		color_key = (y << 16) | (u << 8) | v;
+
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL(dp)) & 0xFF000000L;
+		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(dp));
+		color_key_4rgb = 0;
+
+		debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n",
+			color_key);
+	}
+
+	ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 1);
+
+	return 0;
+}
+
+void ipu_dp_uninit(ipu_channel_t channel)
+{
+	int dp;
+	int partial = 0;
+
+	if (channel == MEM_FG_SYNC) {
+		dp = DP_SYNC;
+		partial = 1;
+	} else if (channel == MEM_BG_SYNC) {
+		dp = DP_SYNC;
+		partial = 0;
+	} else if (channel == MEM_BG_ASYNC0) {
+		dp = DP_ASYNC0;
+		partial = 0;
+	} else {
+		return;
+	}
+
+	if (partial)
+		fg_csc_type = CSC_NONE;
+	else
+		bg_csc_type = CSC_NONE;
+
+	ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 0);
+}
+
+void ipu_dc_init(int dc_chan, int di, unsigned char interlaced)
+{
+	u32 reg = 0;
+
+	if ((dc_chan == 1) || (dc_chan == 5)) {
+		if (interlaced) {
+			ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 3);
+			ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 2);
+			ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 1);
+		} else {
+			if (di) {
+				ipu_dc_link_event(dc_chan, DC_EVT_NL, 2, 3);
+				ipu_dc_link_event(dc_chan, DC_EVT_EOL, 3, 2);
+				ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
+					4, 1);
+			} else {
+				ipu_dc_link_event(dc_chan, DC_EVT_NL, 5, 3);
+				ipu_dc_link_event(dc_chan, DC_EVT_EOL, 6, 2);
+				ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
+					7, 1);
+			}
+		}
+		ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
+
+		reg = 0x2;
+		reg |= DC_DISP_ID_SYNC(di) << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
+		reg |= di << 2;
+		if (interlaced)
+			reg |= DC_WR_CH_CONF_FIELD_MODE;
+	} else if ((dc_chan == 8) || (dc_chan == 9)) {
+		/* async channels */
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0x64, 1);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0x64, 1);
+
+		reg = 0x3;
+		reg |= DC_DISP_ID_SERIAL << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
+	}
+	__raw_writel(reg, DC_WR_CH_CONF(dc_chan));
+
+	__raw_writel(0x00000000, DC_WR_CH_ADDR(dc_chan));
+
+	__raw_writel(0x00000084, DC_GEN);
+}
+
+void ipu_dc_uninit(int dc_chan)
+{
+	if ((dc_chan == 1) || (dc_chan == 5)) {
+		ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
+	} else if ((dc_chan == 8) || (dc_chan == 9)) {
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_1, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_1, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_1, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_1, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_0, 0, 0);
+		ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_1, 0, 0);
+	}
+}
+
+int ipu_chan_is_interlaced(ipu_channel_t channel)
+{
+	if (channel == MEM_DC_SYNC)
+		return !!(__raw_readl(DC_WR_CH_CONF_1) &
+			  DC_WR_CH_CONF_FIELD_MODE);
+	else if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC))
+		return !!(__raw_readl(DC_WR_CH_CONF_5) &
+			  DC_WR_CH_CONF_FIELD_MODE);
+	return 0;
+}
+
+void ipu_dp_dc_enable(ipu_channel_t channel)
+{
+	int di;
+	uint32_t reg;
+	uint32_t dc_chan;
+
+	if (channel == MEM_FG_SYNC)
+		dc_chan = 5;
+	if (channel == MEM_DC_SYNC)
+		dc_chan = 1;
+	else if (channel == MEM_BG_SYNC)
+		dc_chan = 5;
+	else
+		return;
+
+	if (channel == MEM_FG_SYNC) {
+		/* Enable FG channel */
+		reg = __raw_readl(DP_COM_CONF(DP_SYNC));
+		__raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF(DP_SYNC));
+
+		reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
+		__raw_writel(reg, IPU_SRM_PRI2);
+		return;
+	}
+
+	di = g_dc_di_assignment[dc_chan];
+
+	/* Make sure other DC sync channel is not assigned same DI */
+	reg = __raw_readl(DC_WR_CH_CONF(6 - dc_chan));
+	if ((di << 2) == (reg & DC_WR_CH_CONF_PROG_DI_ID)) {
+		reg &= ~DC_WR_CH_CONF_PROG_DI_ID;
+		reg |= di ? 0 : DC_WR_CH_CONF_PROG_DI_ID;
+		__raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
+	}
+
+	reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
+	reg |= 4 << DC_WR_CH_CONF_PROG_TYPE_OFFSET;
+	__raw_writel(reg, DC_WR_CH_CONF(dc_chan));
+
+	clk_enable(g_pixel_clk[di]);
+}
+
+static unsigned char dc_swap;
+
+void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
+{
+	uint32_t reg;
+	uint32_t csc;
+	uint32_t dc_chan = 0;
+	int timeout = 50;
+
+	dc_swap = swap;
+
+	if (channel == MEM_DC_SYNC) {
+		dc_chan = 1;
+	} else if (channel == MEM_BG_SYNC) {
+		dc_chan = 5;
+	} else if (channel == MEM_FG_SYNC) {
+		/* Disable FG channel */
+		dc_chan = 5;
+
+		reg = __raw_readl(DP_COM_CONF(DP_SYNC));
+		csc = reg & DP_COM_CONF_CSC_DEF_MASK;
+		if (csc == DP_COM_CONF_CSC_DEF_FG)
+			reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+
+		reg &= ~DP_COM_CONF_FG_EN;
+		__raw_writel(reg, DP_COM_CONF(DP_SYNC));
+
+		reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
+		__raw_writel(reg, IPU_SRM_PRI2);
+
+		timeout = 50;
+
+		/*
+		 * Wait for DC triple buffer to empty,
+		 * this check is useful for tv overlay.
+		 */
+		if (g_dc_di_assignment[dc_chan] == 0)
+			while ((__raw_readl(DC_STAT) & 0x00000002)
+			       != 0x00000002) {
+				udelay(2000);
+				timeout -= 2;
+				if (timeout <= 0)
+					break;
+			}
+		else if (g_dc_di_assignment[dc_chan] == 1)
+			while ((__raw_readl(DC_STAT) & 0x00000020)
+			       != 0x00000020) {
+				udelay(2000);
+				timeout -= 2;
+				if (timeout <= 0)
+					break;
+			}
+		return;
+	} else {
+		return;
+	}
+
+	if (dc_swap) {
+		/* Swap DC channel 1 and 5 settings, and disable old dc chan */
+		reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
+		__raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
+		reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
+		reg ^= DC_WR_CH_CONF_PROG_DI_ID;
+		__raw_writel(reg, DC_WR_CH_CONF(dc_chan));
+	} else {
+		timeout = 50;
+
+		/* Wait for DC triple buffer to empty */
+		if (g_dc_di_assignment[dc_chan] == 0)
+			while ((__raw_readl(DC_STAT) & 0x00000002)
+				!= 0x00000002) {
+				udelay(2000);
+				timeout -= 2;
+				if (timeout <= 0)
+					break;
+			}
+		else if (g_dc_di_assignment[dc_chan] == 1)
+			while ((__raw_readl(DC_STAT) & 0x00000020)
+				!= 0x00000020) {
+				udelay(2000);
+				timeout -= 2;
+				if (timeout <= 0)
+					break;
+			}
+
+		reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
+		reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
+		__raw_writel(reg, DC_WR_CH_CONF(dc_chan));
+
+		reg = __raw_readl(IPU_DISP_GEN);
+		if (g_dc_di_assignment[dc_chan])
+			reg &= ~DI1_COUNTER_RELEASE;
+		else
+			reg &= ~DI0_COUNTER_RELEASE;
+		__raw_writel(reg, IPU_DISP_GEN);
+
+		/* Clock is already off because it must be done quickly, but
+		   we need to fix the ref count */
+		clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]);
+	}
+}
+
+void ipu_init_dc_mappings(void)
+{
+	/* IPU_PIX_FMT_RGB24 */
+	ipu_dc_map_clear(0);
+	ipu_dc_map_config(0, 0, 7, 0xFF);
+	ipu_dc_map_config(0, 1, 15, 0xFF);
+	ipu_dc_map_config(0, 2, 23, 0xFF);
+
+	/* IPU_PIX_FMT_RGB666 */
+	ipu_dc_map_clear(1);
+	ipu_dc_map_config(1, 0, 5, 0xFC);
+	ipu_dc_map_config(1, 1, 11, 0xFC);
+	ipu_dc_map_config(1, 2, 17, 0xFC);
+
+	/* IPU_PIX_FMT_YUV444 */
+	ipu_dc_map_clear(2);
+	ipu_dc_map_config(2, 0, 15, 0xFF);
+	ipu_dc_map_config(2, 1, 23, 0xFF);
+	ipu_dc_map_config(2, 2, 7, 0xFF);
+
+	/* IPU_PIX_FMT_RGB565 */
+	ipu_dc_map_clear(3);
+	ipu_dc_map_config(3, 0, 4, 0xF8);
+	ipu_dc_map_config(3, 1, 10, 0xFC);
+	ipu_dc_map_config(3, 2, 15, 0xF8);
+
+	/* IPU_PIX_FMT_LVDS666 */
+	ipu_dc_map_clear(4);
+	ipu_dc_map_config(4, 0, 5, 0xFC);
+	ipu_dc_map_config(4, 1, 13, 0xFC);
+	ipu_dc_map_config(4, 2, 21, 0xFC);
+}
+
+int ipu_pixfmt_to_map(uint32_t fmt)
+{
+	switch (fmt) {
+	case IPU_PIX_FMT_GENERIC:
+	case IPU_PIX_FMT_RGB24:
+		return 0;
+	case IPU_PIX_FMT_RGB666:
+		return 1;
+	case IPU_PIX_FMT_YUV444:
+		return 2;
+	case IPU_PIX_FMT_RGB565:
+		return 3;
+	case IPU_PIX_FMT_LVDS666:
+		return 4;
+	}
+
+	return -1;
+}
+
+/*
+ * This function is called to adapt synchronous LCD panel to IPU restriction.
+ */
+void adapt_panel_to_ipu_restricitions(uint32_t *pixel_clk,
+				      uint16_t width, uint16_t height,
+				      uint16_t h_start_width,
+				      uint16_t h_end_width,
+				      uint16_t v_start_width,
+				      uint16_t *v_end_width)
+{
+	if (*v_end_width < 2) {
+		uint16_t total_width = width + h_start_width + h_end_width;
+		uint16_t total_height_old = height + v_start_width +
+			(*v_end_width);
+		uint16_t total_height_new = height + v_start_width + 2;
+		*v_end_width = 2;
+		*pixel_clk = (*pixel_clk) * total_width * total_height_new /
+			(total_width * total_height_old);
+		printf("WARNING: adapt panel end blank lines\n");
+	}
+}
+
+/*
+ * This function is called to initialize a synchronous LCD panel.
+ *
+ * @param       disp            The DI the panel is attached to.
+ *
+ * @param       pixel_clk       Desired pixel clock frequency in Hz.
+ *
+ * @param       pixel_fmt       Input parameter for pixel format of buffer.
+ *                              Pixel format is a FOURCC ASCII code.
+ *
+ * @param       width           The width of panel in pixels.
+ *
+ * @param       height          The height of panel in pixels.
+ *
+ * @param       hStartWidth     The number of pixel clocks between the HSYNC
+ *                              signal pulse and the start of valid data.
+ *
+ * @param       hSyncWidth      The width of the HSYNC signal in units of pixel
+ *                              clocks.
+ *
+ * @param       hEndWidth       The number of pixel clocks between the end of
+ *                              valid data and the HSYNC signal for next line.
+ *
+ * @param       vStartWidth     The number of lines between the VSYNC
+ *                              signal pulse and the start of valid data.
+ *
+ * @param       vSyncWidth      The width of the VSYNC signal in units of lines
+ *
+ * @param       vEndWidth       The number of lines between the end of valid
+ *                              data and the VSYNC signal for next frame.
+ *
+ * @param       sig             Bitfield of signal polarities for LCD interface.
+ *
+ * @return      This function returns 0 on success or negative error code on
+ *              fail.
+ */
+
+int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk,
+			    uint16_t width, uint16_t height,
+			    uint32_t pixel_fmt,
+			    uint16_t h_start_width, uint16_t h_sync_width,
+			    uint16_t h_end_width, uint16_t v_start_width,
+			    uint16_t v_sync_width, uint16_t v_end_width,
+			    uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig)
+{
+	uint32_t reg;
+	uint32_t di_gen, vsync_cnt;
+	uint32_t div, rounded_pixel_clk;
+	uint32_t h_total, v_total;
+	int map;
+	struct clk *di_parent;
+
+	debug("panel size = %d x %d\n", width, height);
+
+	if ((v_sync_width == 0) || (h_sync_width == 0))
+		return EINVAL;
+
+	adapt_panel_to_ipu_restricitions(&pixel_clk, width, height,
+					 h_start_width, h_end_width,
+					 v_start_width, &v_end_width);
+	h_total = width + h_sync_width + h_start_width + h_end_width;
+	v_total = height + v_sync_width + v_start_width + v_end_width;
+
+	/* Init clocking */
+	debug("pixel clk = %d\n", pixel_clk);
+
+	if (sig.ext_clk) {
+		if (!(g_di1_tvout && (disp == 1))) { /*not round div for tvout*/
+			/*
+			 * Set the  PLL to be an even multiple
+			 * of the pixel clock.
+			 */
+			if ((clk_get_usecount(g_pixel_clk[0]) == 0) &&
+				(clk_get_usecount(g_pixel_clk[1]) == 0)) {
+				di_parent = clk_get_parent(g_di_clk[disp]);
+				rounded_pixel_clk =
+					clk_round_rate(g_pixel_clk[disp],
+						pixel_clk);
+				div  = clk_get_rate(di_parent) /
+					rounded_pixel_clk;
+				if (div % 2)
+					div++;
+				if (clk_get_rate(di_parent) != div *
+					rounded_pixel_clk)
+					clk_set_rate(di_parent,
+						div * rounded_pixel_clk);
+				udelay(10000);
+				clk_set_rate(g_di_clk[disp],
+					2 * rounded_pixel_clk);
+				udelay(10000);
+			}
+		}
+		clk_set_parent(g_pixel_clk[disp], g_di_clk[disp]);
+	} else {
+		if (clk_get_usecount(g_pixel_clk[disp]) != 0)
+			clk_set_parent(g_pixel_clk[disp], g_ipu_clk);
+	}
+	rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk);
+	clk_set_rate(g_pixel_clk[disp], rounded_pixel_clk);
+	udelay(5000);
+	/* Get integer portion of divider */
+	div = clk_get_rate(clk_get_parent(g_pixel_clk[disp])) /
+		rounded_pixel_clk;
+
+	ipu_di_data_wave_config(disp, SYNC_WAVE, div - 1, div - 1);
+	ipu_di_data_pin_config(disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
+
+	map = ipu_pixfmt_to_map(pixel_fmt);
+	if (map < 0) {
+		debug("IPU_DISP: No MAP\n");
+		return -EINVAL;
+	}
+
+	di_gen = __raw_readl(DI_GENERAL(disp));
+
+	if (sig.interlaced) {
+		/* Setup internal HSYNC waveform */
+		ipu_di_sync_config(
+				disp,		/* display */
+				1,		/* counter */
+				h_total / 2 - 1,/* run count */
+				DI_SYNC_CLK,	/* run_resolution */
+				0,		/* offset */
+				DI_SYNC_NONE,	/* offset resolution */
+				0,		/* repeat count */
+				DI_SYNC_NONE,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				0		/* COUNT DOWN */
+				);
+
+		/* Field 1 VSYNC waveform */
+		ipu_di_sync_config(
+				disp,		/* display */
+				2,		/* counter */
+				h_total - 1,	/* run count */
+				DI_SYNC_CLK,	/* run_resolution */
+				0,		/* offset */
+				DI_SYNC_NONE,	/* offset resolution */
+				0,		/* repeat count */
+				DI_SYNC_NONE,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				4		/* COUNT DOWN */
+				);
+
+		/* Setup internal HSYNC waveform */
+		ipu_di_sync_config(
+				disp,		/* display */
+				3,		/* counter */
+				v_total * 2 - 1,/* run count */
+				DI_SYNC_INT_HSYNC,	/* run_resolution */
+				1,		/* offset */
+				DI_SYNC_INT_HSYNC,	/* offset resolution */
+				0,		/* repeat count */
+				DI_SYNC_NONE,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				4		/* COUNT DOWN */
+				);
+
+		/* Active Field ? */
+		ipu_di_sync_config(
+				disp,		/* display */
+				4,		/* counter */
+				v_total / 2 - 1,/* run count */
+				DI_SYNC_HSYNC,	/* run_resolution */
+				v_start_width,	/*  offset */
+				DI_SYNC_HSYNC,	/* offset resolution */
+				2,		/* repeat count */
+				DI_SYNC_VSYNC,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				0		/* COUNT DOWN */
+				);
+
+		/* Active Line */
+		ipu_di_sync_config(
+				disp,		/* display */
+				5,		/* counter */
+				0,		/* run count */
+				DI_SYNC_HSYNC,	/* run_resolution */
+				0,		/*  offset */
+				DI_SYNC_NONE,	/* offset resolution */
+				height / 2,	/* repeat count */
+				4,		/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				0		/* COUNT DOWN */
+				);
+
+		/* Field 0 VSYNC waveform */
+		ipu_di_sync_config(
+				disp,		/* display */
+				6,		/* counter */
+				v_total - 1,	/* run count */
+				DI_SYNC_HSYNC,	/* run_resolution */
+				0,		/* offset */
+				DI_SYNC_NONE,	/* offset resolution */
+				0,		/* repeat count */
+				DI_SYNC_NONE,	/* CNT_CLR_SEL  */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				0		/* COUNT DOWN */
+				);
+
+		/* DC VSYNC waveform */
+		vsync_cnt = 7;
+		ipu_di_sync_config(
+				disp,		/* display */
+				7,		/* counter */
+				v_total / 2 - 1,/* run count */
+				DI_SYNC_HSYNC,	/* run_resolution  */
+				9,		/* offset  */
+				DI_SYNC_HSYNC,	/* offset resolution */
+				2,		/* repeat count */
+				DI_SYNC_VSYNC,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				0		/* COUNT DOWN */
+				);
+
+		/* active pixel waveform */
+		ipu_di_sync_config(
+				disp,		/* display */
+				8,		/* counter */
+				0,		/* run count  */
+				DI_SYNC_CLK,	/* run_resolution */
+				h_start_width,	/* offset  */
+				DI_SYNC_CLK,	/* offset resolution */
+				width,		/* repeat count  */
+				5,		/* CNT_CLR_SEL  */
+				0,		/* CNT_POLARITY_GEN_EN  */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL  */
+				0,		/* COUNT UP  */
+				0		/* COUNT DOWN */
+				);
+
+		ipu_di_sync_config(
+				disp,		/* display */
+				9,		/* counter */
+				v_total - 1,	/* run count */
+				DI_SYNC_INT_HSYNC,/* run_resolution */
+				v_total / 2,	/* offset  */
+				DI_SYNC_INT_HSYNC,/* offset resolution  */
+				0,		/* repeat count */
+				DI_SYNC_HSYNC,	/* CNT_CLR_SEL */
+				0,		/* CNT_POLARITY_GEN_EN  */
+				DI_SYNC_NONE,	/* CNT_POLARITY_CLR_SEL  */
+				DI_SYNC_NONE,	/* CNT_POLARITY_TRIGGER_SEL */
+				0,		/* COUNT UP */
+				4		/* COUNT DOWN */
+				);
+
+		/* set gentime select and tag sel */
+		reg = __raw_readl(DI_SW_GEN1(disp, 9));
+		reg &= 0x1FFFFFFF;
+		reg |= (3 - 1)<<29 | 0x00008000;
+		__raw_writel(reg, DI_SW_GEN1(disp, 9));
+
+		__raw_writel(v_total / 2 - 1, DI_SCR_CONF(disp));
+
+		/* set y_sel = 1 */
+		di_gen |= 0x10000000;
+		di_gen |= DI_GEN_POLARITY_5;
+		di_gen |= DI_GEN_POLARITY_8;
+	} else {
+		/* Setup internal HSYNC waveform */
+		ipu_di_sync_config(disp, 1, h_total - 1, DI_SYNC_CLK,
+				0, DI_SYNC_NONE, 0, DI_SYNC_NONE,
+				0, DI_SYNC_NONE,
+				DI_SYNC_NONE, 0, 0);
+
+		/* Setup external (delayed) HSYNC waveform */
+		ipu_di_sync_config(disp, DI_SYNC_HSYNC, h_total - 1,
+				DI_SYNC_CLK, div * v_to_h_sync, DI_SYNC_CLK,
+				0, DI_SYNC_NONE, 1, DI_SYNC_NONE,
+				DI_SYNC_CLK, 0, h_sync_width * 2);
+		/* Setup VSYNC waveform */
+		vsync_cnt = DI_SYNC_VSYNC;
+		ipu_di_sync_config(disp, DI_SYNC_VSYNC, v_total - 1,
+				DI_SYNC_INT_HSYNC, 0, DI_SYNC_NONE, 0,
+				DI_SYNC_NONE, 1, DI_SYNC_NONE,
+				DI_SYNC_INT_HSYNC, 0, v_sync_width * 2);
+		__raw_writel(v_total - 1, DI_SCR_CONF(disp));
+
+		/* Setup active data waveform to sync with DC */
+		ipu_di_sync_config(disp, 4, 0, DI_SYNC_HSYNC,
+				v_sync_width + v_start_width, DI_SYNC_HSYNC,
+				height,
+				DI_SYNC_VSYNC, 0, DI_SYNC_NONE,
+				DI_SYNC_NONE, 0, 0);
+		ipu_di_sync_config(disp, 5, 0, DI_SYNC_CLK,
+				h_sync_width + h_start_width, DI_SYNC_CLK,
+				width, 4, 0, DI_SYNC_NONE, DI_SYNC_NONE, 0,
+				0);
+
+		/* reset all unused counters */
+		__raw_writel(0, DI_SW_GEN0(disp, 6));
+		__raw_writel(0, DI_SW_GEN1(disp, 6));
+		__raw_writel(0, DI_SW_GEN0(disp, 7));
+		__raw_writel(0, DI_SW_GEN1(disp, 7));
+		__raw_writel(0, DI_SW_GEN0(disp, 8));
+		__raw_writel(0, DI_SW_GEN1(disp, 8));
+		__raw_writel(0, DI_SW_GEN0(disp, 9));
+		__raw_writel(0, DI_SW_GEN1(disp, 9));
+
+		reg = __raw_readl(DI_STP_REP(disp, 6));
+		reg &= 0x0000FFFF;
+		__raw_writel(reg, DI_STP_REP(disp, 6));
+		__raw_writel(0, DI_STP_REP(disp, 7));
+		__raw_writel(0, DI_STP_REP(disp, 9));
+
+		/* Init template microcode */
+		if (disp) {
+		   ipu_dc_write_tmpl(2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+		   ipu_dc_write_tmpl(3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+		   ipu_dc_write_tmpl(4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+		} else {
+		   ipu_dc_write_tmpl(5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+		   ipu_dc_write_tmpl(6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+		   ipu_dc_write_tmpl(7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+		}
+
+		if (sig.Hsync_pol)
+			di_gen |= DI_GEN_POLARITY_2;
+		if (sig.Vsync_pol)
+			di_gen |= DI_GEN_POLARITY_3;
+
+		if (sig.clk_pol)
+			di_gen |= DI_GEN_POL_CLK;
+
+	}
+
+	__raw_writel(di_gen, DI_GENERAL(disp));
+
+	__raw_writel((--vsync_cnt << DI_VSYNC_SEL_OFFSET) |
+			0x00000002, DI_SYNC_AS_GEN(disp));
+
+	reg = __raw_readl(DI_POL(disp));
+	reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
+	if (sig.enable_pol)
+		reg |= DI_POL_DRDY_POLARITY_15;
+	if (sig.data_pol)
+		reg |= DI_POL_DRDY_DATA_POLARITY;
+	__raw_writel(reg, DI_POL(disp));
+
+	__raw_writel(width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp)));
+
+	return 0;
+}
+
+/*
+ * This function sets the foreground and background plane global alpha blending
+ * modes. This function also sets the DP graphic plane according to the
+ * parameter of IPUv3 DP channel.
+ *
+ * @param	channel		IPUv3 DP channel
+ *
+ * @param       enable          Boolean to enable or disable global alpha
+ *                              blending. If disabled, local blending is used.
+ *
+ * @param       alpha           Global alpha value.
+ *
+ * @return      Returns 0 on success or negative error code on fail
+ */
+int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
+				  uint8_t alpha)
+{
+	uint32_t reg;
+	uint32_t flow;
+
+	unsigned char bg_chan;
+
+	if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC)
+		flow = DP_SYNC;
+	else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0)
+		flow = DP_ASYNC0;
+	else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)
+		flow = DP_ASYNC1;
+	else
+		return -EINVAL;
+
+	if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 ||
+	    channel == MEM_BG_ASYNC1)
+		bg_chan = 1;
+	else
+		bg_chan = 0;
+
+	if (!g_ipu_clk_enabled)
+		clk_enable(g_ipu_clk);
+
+	if (bg_chan) {
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF(flow));
+	} else {
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF(flow));
+	}
+
+	if (enable) {
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0x00FFFFFFL;
+		__raw_writel(reg | ((uint32_t) alpha << 24),
+			     DP_GRAPH_WIND_CTRL(flow));
+
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF(flow));
+	} else {
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF(flow));
+	}
+
+	reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
+	__raw_writel(reg, IPU_SRM_PRI2);
+
+	if (!g_ipu_clk_enabled)
+		clk_disable(g_ipu_clk);
+
+	return 0;
+}
+
+/*
+ * This function sets the transparent color key for SDC graphic plane.
+ *
+ * @param       channel         Input parameter for the logical channel ID.
+ *
+ * @param       enable          Boolean to enable or disable color key
+ *
+ * @param       colorKey        24-bit RGB color for transparent color key.
+ *
+ * @return      Returns 0 on success or negative error code on fail
+ */
+int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
+			       uint32_t color_key)
+{
+	uint32_t reg, flow;
+	int y, u, v;
+	int red, green, blue;
+
+	if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC)
+		flow = DP_SYNC;
+	else if (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0)
+		flow = DP_ASYNC0;
+	else if (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)
+		flow = DP_ASYNC1;
+	else
+		return -EINVAL;
+
+	if (!g_ipu_clk_enabled)
+		clk_enable(g_ipu_clk);
+
+	color_key_4rgb = 1;
+	/* Transform color key from rgb to yuv if CSC is enabled */
+	if (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
+		((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
+		((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
+		((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB))) {
+
+		debug("color key 0x%x need change to yuv fmt\n", color_key);
+
+		red = (color_key >> 16) & 0xFF;
+		green = (color_key >> 8) & 0xFF;
+		blue = color_key & 0xFF;
+
+		y = rgb_to_yuv(0, red, green, blue);
+		u = rgb_to_yuv(1, red, green, blue);
+		v = rgb_to_yuv(2, red, green, blue);
+		color_key = (y << 16) | (u << 8) | v;
+
+		color_key_4rgb = 0;
+
+		debug("color key change to yuv fmt 0x%x\n", color_key);
+	}
+
+	if (enable) {
+		reg = __raw_readl(DP_GRAPH_WIND_CTRL(flow)) & 0xFF000000L;
+		__raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL(flow));
+
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF(flow));
+	} else {
+		reg = __raw_readl(DP_COM_CONF(flow));
+		__raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF(flow));
+	}
+
+	reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
+	__raw_writel(reg, IPU_SRM_PRI2);
+
+	if (!g_ipu_clk_enabled)
+		clk_disable(g_ipu_clk);
+
+	return 0;
+}