[PATCH v7 0/7] dw-hdmi: convert imx hdmi to bridge/dw-hdmi

[PATCH v7 0/7] dw-hdmi: convert imx hdmi to bridge/dw-hdmi

[Andy Yan]

We found freescale imx5 and rockchip rk3288 and Ingenic JZ4780 (Xburst/MIPS)
use the interface compatible Designware HDMI IP, but they also have some
lightly differences, such as phy pll configuration, register width(imx hdmi
register is one byte, but rk3288 is 4 bytes width and can only access by word),
4K support(imx6 doesn't support 4k, but rk3288 does).

To reuse the imx-hdmi driver, we do this patch set:
(1): fix some CodingStyle warning to make checkpatch happy
(2): split out imx-soc code from imx-hdmi to dw_hdmi-imx.c
(3): move imx-hdmi to bridge/dw-hdmi, and convert it to a drm_bridge driver
And we will add rockchip platform specific code dw_hdmi-rockchip.c later,
which is depend on drm-rockchip.

Changes in v7:
- remove unused variables from structure dw_hdmi
- remove a wrong modification
- add copyrights for dw_hdmi-imx.c

Changes in v6:
- rearrange the patch order
- move some modification to  patch#6
- refactor register access without reg_shift
- move some modification from patch#5

Changes in v5:
- refactor reg-io-width

Changes in v4:
- fix checkpatch CHECK
- defer probe ddc i2c adapter

Changes in v3:
- split multi register access to one indepent patch

Changes in v2:
- use git format -M to generate these patch

Andy Yan (6):
  staging: imx-drm: imx-hdmi: make checkpatch happy
  staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter
  staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi
  staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw-hdmi
  drm: bridge/dw-hdmi: add support for multi byte register width access
  dt-bindings: add document for dw-hdmi

Yakir Yang (1):
  drm: bridge/dw-hdmi: convert dw-hdmi to drm_bridge mode

 .../devicetree/bindings/drm/bridge/dw-hdmi.txt     |  38 ++
 drivers/gpu/drm/bridge/Kconfig                     |   5 +
 drivers/gpu/drm/bridge/Makefile                    |   1 +
 .../imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c}        | 723 +++++++++------------
 .../imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h}        |   5 +-
 drivers/staging/imx-drm/Kconfig                    |   1 +
 drivers/staging/imx-drm/Makefile                   |   2 +-
 drivers/staging/imx-drm/dw_hdmi-imx.c              | 266 ++++++++
 include/drm/bridge/dw_hdmi.h                       |  52 ++
 9 files changed, 670 insertions(+), 423 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
 rename drivers/{staging/imx-drm/imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c} (71%)
 rename drivers/{staging/imx-drm/imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h} (99%)
 create mode 100644 drivers/staging/imx-drm/dw_hdmi-imx.c
 create mode 100644 include/drm/bridge/dw_hdmi.h

-- 
1.9.1

[PATCH v7 1/7] staging: imx-drm: imx-hdmi: make checkpatch happy

[Andy Yan]

CHECK: Alignment should match open parenthesis
+       if ((hdmi->vic == 10) || (hdmi->vic == 11) ||
+               (hdmi->vic == 12) || (hdmi->vic == 13) ||

CHECK: braces {} should be used on all arms of this statement
+       if (hdmi->hdmi_data.video_mode.mdvi)
[...]
+       else {
[...]

Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

---

Changes in v7: None
Changes in v6:
- rearrange the patch order

Changes in v5: None
Changes in v4:
- fix checkpatch CHECK

Changes in v3: None
Changes in v2: None

 drivers/staging/imx-drm/imx-hdmi.c | 97 +++++++++++++++++++-------------------
 1 file changed, 48 insertions(+), 49 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
index aaec6b2..79daec4 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/staging/imx-drm/imx-hdmi.c
@@ -163,7 +163,7 @@ static void hdmi_modb(struct imx_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
 }
 
 static void hdmi_mask_writeb(struct imx_hdmi *hdmi, u8 data, unsigned int reg,
-		      u8 shift, u8 mask)
+			     u8 shift, u8 mask)
 {
 	hdmi_modb(hdmi, data << shift, mask, reg);
 }
@@ -327,7 +327,7 @@ static unsigned int hdmi_compute_cts(unsigned int freq, unsigned long pixel_clk,
 }
 
 static void hdmi_set_clk_regenerator(struct imx_hdmi *hdmi,
-	unsigned long pixel_clk)
+				     unsigned long pixel_clk)
 {
 	unsigned int clk_n, clk_cts;
 
@@ -338,7 +338,7 @@ static void hdmi_set_clk_regenerator(struct imx_hdmi *hdmi,
 
 	if (!clk_cts) {
 		dev_dbg(hdmi->dev, "%s: pixel clock not supported: %lu\n",
-			 __func__, pixel_clk);
+			__func__, pixel_clk);
 		return;
 	}
 
@@ -477,13 +477,11 @@ static void imx_hdmi_update_csc_coeffs(struct imx_hdmi *hdmi)
 		u16 coeff_b = (*csc_coeff)[1][i];
 		u16 coeff_c = (*csc_coeff)[2][i];
 
-		hdmi_writeb(hdmi, coeff_a & 0xff,
-			HDMI_CSC_COEF_A1_LSB + i * 2);
+		hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2);
 		hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2);
 		hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2);
 		hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2);
-		hdmi_writeb(hdmi, coeff_c & 0xff,
-			HDMI_CSC_COEF_C1_LSB + i * 2);
+		hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2);
 		hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2);
 	}
 
@@ -535,21 +533,22 @@ static void hdmi_video_packetize(struct imx_hdmi *hdmi)
 	struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
 	u8 val, vp_conf;
 
-	if (hdmi_data->enc_out_format == RGB
-		|| hdmi_data->enc_out_format == YCBCR444) {
-		if (!hdmi_data->enc_color_depth)
+	if (hdmi_data->enc_out_format == RGB ||
+	    hdmi_data->enc_out_format == YCBCR444) {
+		if (!hdmi_data->enc_color_depth) {
 			output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
-		else if (hdmi_data->enc_color_depth == 8) {
+		} else if (hdmi_data->enc_color_depth == 8) {
 			color_depth = 4;
 			output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
-		} else if (hdmi_data->enc_color_depth == 10)
+		} else if (hdmi_data->enc_color_depth == 10) {
 			color_depth = 5;
-		else if (hdmi_data->enc_color_depth == 12)
+		} else if (hdmi_data->enc_color_depth == 12) {
 			color_depth = 6;
-		else if (hdmi_data->enc_color_depth == 16)
+		} else if (hdmi_data->enc_color_depth == 16) {
 			color_depth = 7;
-		else
+		} else {
 			return;
+		}
 	} else if (hdmi_data->enc_out_format == YCBCR422_8BITS) {
 		if (!hdmi_data->enc_color_depth ||
 		    hdmi_data->enc_color_depth == 8)
@@ -561,8 +560,9 @@ static void hdmi_video_packetize(struct imx_hdmi *hdmi)
 		else
 			return;
 		output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422;
-	} else
+	} else {
 		return;
+	}
 
 	/* set the packetizer registers */
 	val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) &
@@ -623,34 +623,34 @@ static void hdmi_video_packetize(struct imx_hdmi *hdmi)
 }
 
 static inline void hdmi_phy_test_clear(struct imx_hdmi *hdmi,
-						unsigned char bit)
+				       unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
 		  HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
 }
 
 static inline void hdmi_phy_test_enable(struct imx_hdmi *hdmi,
-						unsigned char bit)
+					unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET,
 		  HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0);
 }
 
 static inline void hdmi_phy_test_clock(struct imx_hdmi *hdmi,
-						unsigned char bit)
+				       unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET,
 		  HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0);
 }
 
 static inline void hdmi_phy_test_din(struct imx_hdmi *hdmi,
-						unsigned char bit)
+				     unsigned char bit)
 {
 	hdmi_writeb(hdmi, bit, HDMI_PHY_TST1);
 }
 
 static inline void hdmi_phy_test_dout(struct imx_hdmi *hdmi,
-						unsigned char bit)
+				      unsigned char bit)
 {
 	hdmi_writeb(hdmi, bit, HDMI_PHY_TST2);
 }
@@ -666,21 +666,21 @@ static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
 }
 
 static void __hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
-			      unsigned char addr)
+				 unsigned char addr)
 {
 	hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
 	hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR);
 	hdmi_writeb(hdmi, (unsigned char)(data >> 8),
-		HDMI_PHY_I2CM_DATAO_1_ADDR);
+		    HDMI_PHY_I2CM_DATAO_1_ADDR);
 	hdmi_writeb(hdmi, (unsigned char)(data >> 0),
-		HDMI_PHY_I2CM_DATAO_0_ADDR);
+		    HDMI_PHY_I2CM_DATAO_0_ADDR);
 	hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE,
-		HDMI_PHY_I2CM_OPERATION_ADDR);
+		    HDMI_PHY_I2CM_OPERATION_ADDR);
 	hdmi_phy_wait_i2c_done(hdmi, 1000);
 }
 
 static int hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
-				     unsigned char addr)
+			      unsigned char addr)
 {
 	__hdmi_phy_i2c_write(hdmi, data, addr);
 	return 0;
@@ -839,7 +839,7 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 
 	hdmi_phy_test_clear(hdmi, 1);
 	hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
-			HDMI_PHY_I2CM_SLAVE_ADDR);
+		    HDMI_PHY_I2CM_SLAVE_ADDR);
 	hdmi_phy_test_clear(hdmi, 0);
 
 	/* PLL/MPLL Cfg - always match on final entry */
@@ -857,9 +857,8 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 			break;
 
 	if (i >= ARRAY_SIZE(curr_ctrl)) {
-		dev_err(hdmi->dev,
-				"Pixel clock %d - unsupported by HDMI\n",
-				hdmi->hdmi_data.video_mode.mpixelclock);
+		dev_err(hdmi->dev, "Pixel clock %d - unsupported by HDMI\n",
+			hdmi->hdmi_data.video_mode.mpixelclock);
 		return -EINVAL;
 	}
 
@@ -1223,21 +1222,21 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
 	}
 
 	if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
-		(hdmi->vic == 21) || (hdmi->vic == 22) ||
-		(hdmi->vic == 2) || (hdmi->vic == 3) ||
-		(hdmi->vic == 17) || (hdmi->vic == 18))
+	    (hdmi->vic == 21) || (hdmi->vic == 22) ||
+	    (hdmi->vic == 2) || (hdmi->vic == 3) ||
+	    (hdmi->vic == 17) || (hdmi->vic == 18))
 		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
 	else
 		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
 
 	if ((hdmi->vic == 10) || (hdmi->vic == 11) ||
-		(hdmi->vic == 12) || (hdmi->vic == 13) ||
-		(hdmi->vic == 14) || (hdmi->vic == 15) ||
-		(hdmi->vic == 25) || (hdmi->vic == 26) ||
-		(hdmi->vic == 27) || (hdmi->vic == 28) ||
-		(hdmi->vic == 29) || (hdmi->vic == 30) ||
-		(hdmi->vic == 35) || (hdmi->vic == 36) ||
-		(hdmi->vic == 37) || (hdmi->vic == 38))
+	    (hdmi->vic == 12) || (hdmi->vic == 13) ||
+	    (hdmi->vic == 14) || (hdmi->vic == 15) ||
+	    (hdmi->vic == 25) || (hdmi->vic == 26) ||
+	    (hdmi->vic == 27) || (hdmi->vic == 28) ||
+	    (hdmi->vic == 29) || (hdmi->vic == 30) ||
+	    (hdmi->vic == 35) || (hdmi->vic == 36) ||
+	    (hdmi->vic == 37) || (hdmi->vic == 38))
 		hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 1;
 	else
 		hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
@@ -1266,9 +1265,9 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
 	imx_hdmi_enable_video_path(hdmi);
 
 	/* not for DVI mode */
-	if (hdmi->hdmi_data.video_mode.mdvi)
+	if (hdmi->hdmi_data.video_mode.mdvi) {
 		dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
-	else {
+	} else {
 		dev_dbg(hdmi->dev, "%s CEA mode\n", __func__);
 
 		/* HDMI Initialization Step E - Configure audio */
@@ -1525,7 +1524,7 @@ static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
 			dev_dbg(hdmi->dev, "EVENT=plugout\n");
 
 			hdmi_modb(hdmi, HDMI_PHY_HPD, HDMI_PHY_HPD,
-				HDMI_PHY_POL0);
+				  HDMI_PHY_POL0);
 
 			imx_hdmi_poweroff(hdmi);
 		}
@@ -1554,7 +1553,7 @@ static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
 			 DRM_MODE_ENCODER_TMDS);
 
 	drm_connector_helper_add(&hdmi->connector,
-			&imx_hdmi_connector_helper_funcs);
+				 &imx_hdmi_connector_helper_funcs);
 	drm_connector_init(drm, &hdmi->connector, &imx_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
 
@@ -1671,11 +1670,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	/* Product and revision IDs */
 	dev_info(dev,
-		"Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
-		hdmi_readb(hdmi, HDMI_DESIGN_ID),
-		hdmi_readb(hdmi, HDMI_REVISION_ID),
-		hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
-		hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
+		 "Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
+		 hdmi_readb(hdmi, HDMI_DESIGN_ID),
+		 hdmi_readb(hdmi, HDMI_REVISION_ID),
+		 hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
+		 hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
 
 	initialize_hdmi_ih_mutes(hdmi);
 
-- 
1.9.1


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[PATCH v7 2/7] staging: imx-drm: imx-hdmi: return defer if can't get ddc i2c adapter

[Andy Yan]

drm driver may probe before the i2c bus, so the driver should
defer probing until it is available

Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

---

Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4:
- defer probe ddc i2c adapter

Changes in v3: None
Changes in v2: None

 drivers/staging/imx-drm/imx-hdmi.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
index 79daec4..c2b035a 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/staging/imx-drm/imx-hdmi.c
@@ -1611,8 +1611,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
 	if (ddc_node) {
 		hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
-		if (!hdmi->ddc)
+		if (!hdmi->ddc) {
 			dev_dbg(hdmi->dev, "failed to read ddc node\n");
+			of_node_put(ddc_node);
+			return -EPROBE_DEFER;
+		}
 
 		of_node_put(ddc_node);
 	} else {
-- 
1.9.1


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[PATCH v7 3/7] staging: imx-drm: imx-hdmi: split imx soc specific code from imx-hdmi

[Andy Yan]

imx6 and rockchip rk3288 and JZ4780 (Ingenic Xburst/MIPS)
use the interface compatible Designware HDMI IP, but they
also have some lightly differences, such as phy pll configuration,
register width, 4K support, clk useage, and the crtc mux configuration
is also platform specific.

To reuse the imx hdmi driver, split the platform specific code out
to dw_hdmi-imx.c.

Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

---

Changes in v7:
- remove unused variables from structure dw_hdmi
- remove a wrong modification
- add copyrights for dw_hdmi-imx.c

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/staging/imx-drm/Makefile      |   2 +-
 drivers/staging/imx-drm/dw_hdmi-imx.c | 217 +++++++++++++++++++++++++++++
 drivers/staging/imx-drm/imx-hdmi.c    | 255 ++++++++--------------------------
 drivers/staging/imx-drm/imx-hdmi.h    |  43 ++++++
 4 files changed, 322 insertions(+), 195 deletions(-)
 create mode 100644 drivers/staging/imx-drm/dw_hdmi-imx.c

diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
index 582c438..809027d 100644
--- a/drivers/staging/imx-drm/Makefile
+++ b/drivers/staging/imx-drm/Makefile
@@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
 
 imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
 obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
-obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o
+obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o dw_hdmi-imx.o
diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
new file mode 100644
index 0000000..0db978e
--- /dev/null
+++ b/drivers/staging/imx-drm/dw_hdmi-imx.c
@@ -0,0 +1,217 @@
+/* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
+ *
+ * derived from imx-hdmi.c(renamed to bridge/dw_hdmi.c now)
+ *
+ * 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/module.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <video/imx-ipu-v3.h>
+#include <linux/regmap.h>
+#include <linux/clk.h>
+
+#include "imx-drm.h"
+#include "imx-hdmi.h"
+
+struct imx_hdmi_priv {
+	struct device *dev;
+	struct clk *isfr_clk;
+	struct clk *iahb_clk;
+	struct regmap *regmap;
+};
+
+static const struct mpll_config imx_mpll_cfg[] = {
+	{
+		45250000, {
+			{ 0x01e0, 0x0000 },
+			{ 0x21e1, 0x0000 },
+			{ 0x41e2, 0x0000 }
+		},
+	}, {
+		92500000, {
+			{ 0x0140, 0x0005 },
+			{ 0x2141, 0x0005 },
+			{ 0x4142, 0x0005 },
+	},
+	}, {
+		148500000, {
+			{ 0x00a0, 0x000a },
+			{ 0x20a1, 0x000a },
+			{ 0x40a2, 0x000a },
+		},
+	}, {
+		~0UL, {
+			{ 0x00a0, 0x000a },
+			{ 0x2001, 0x000f },
+			{ 0x4002, 0x000f },
+		},
+	}
+};
+
+static const struct curr_ctrl imx_cur_ctr[] = {
+	/*      pixelclk     bpp8    bpp10   bpp12 */
+	{
+		54000000, { 0x091c, 0x091c, 0x06dc },
+	}, {
+		58400000, { 0x091c, 0x06dc, 0x06dc },
+	}, {
+		72000000, { 0x06dc, 0x06dc, 0x091c },
+	}, {
+		74250000, { 0x06dc, 0x0b5c, 0x091c },
+	}, {
+		118800000, { 0x091c, 0x091c, 0x06dc },
+	}, {
+		216000000, { 0x06dc, 0x0b5c, 0x091c },
+	}
+};
+
+static int imx_hdmi_parse_dt(struct imx_hdmi_priv *hdmi)
+{
+	struct device_node *np = hdmi->dev->of_node;
+
+	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
+	if (IS_ERR(hdmi->regmap)) {
+		dev_err(hdmi->dev, "Unable to get gpr\n");
+		return PTR_ERR(hdmi->regmap);
+	}
+
+	hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
+	if (IS_ERR(hdmi->isfr_clk)) {
+		dev_err(hdmi->dev, "Unable to get HDMI isfr clk\n");
+		return PTR_ERR(hdmi->isfr_clk);
+	}
+
+	hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
+	if (IS_ERR(hdmi->iahb_clk)) {
+		dev_err(hdmi->dev, "Unable to get HDMI iahb clk\n");
+		return PTR_ERR(hdmi->iahb_clk);
+	}
+
+	return 0;
+}
+
+static void *imx_hdmi_imx_setup(struct platform_device *pdev)
+{
+	struct imx_hdmi_priv *hdmi;
+	int ret;
+
+	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return ERR_PTR(-ENOMEM);
+	hdmi->dev = &pdev->dev;
+
+	ret = imx_hdmi_parse_dt(hdmi);
+	if (ret < 0)
+		return ERR_PTR(ret);
+	ret = clk_prepare_enable(hdmi->isfr_clk);
+	if (ret) {
+		dev_err(hdmi->dev,
+			"Cannot enable HDMI isfr clock: %d\n", ret);
+		return ERR_PTR(ret);
+	}
+
+	ret = clk_prepare_enable(hdmi->iahb_clk);
+	if (ret) {
+		dev_err(hdmi->dev,
+			"Cannot enable HDMI iahb clock: %d\n", ret);
+		return ERR_PTR(ret);
+	}
+
+	return hdmi;
+}
+
+static void imx_hdmi_imx_exit(void *priv)
+{
+	struct imx_hdmi_priv *hdmi = (struct imx_hdmi_priv *)priv;
+
+	clk_disable_unprepare(hdmi->isfr_clk);
+
+	clk_disable_unprepare(hdmi->iahb_clk);
+}
+
+static void imx_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
+{
+	struct imx_hdmi_priv *hdmi = (struct imx_hdmi_priv *)priv;
+	int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
+
+	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
+			   IMX6Q_GPR3_HDMI_MUX_CTL_MASK,
+			   mux << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
+}
+
+static void imx_hdmi_imx_encoder_prepare(struct drm_connector *connector,
+					 struct drm_encoder *encoder)
+{
+	imx_drm_panel_format(encoder, V4L2_PIX_FMT_RGB24);
+}
+
+static struct imx_hdmi_plat_data imx6q_hdmi_drv_data = {
+	.setup			= imx_hdmi_imx_setup,
+	.exit			= imx_hdmi_imx_exit,
+	.encoder_commit		= imx_hdmi_imx_encoder_commit,
+	.encoder_prepare	= imx_hdmi_imx_encoder_prepare,
+	.mpll_cfg		= imx_mpll_cfg,
+	.cur_ctr		= imx_cur_ctr,
+	.dev_type		= IMX6Q_HDMI,
+};
+
+static struct imx_hdmi_plat_data imx6dl_hdmi_drv_data = {
+	.setup			= imx_hdmi_imx_setup,
+	.exit			= imx_hdmi_imx_exit,
+	.encoder_commit		= imx_hdmi_imx_encoder_commit,
+	.encoder_prepare	= imx_hdmi_imx_encoder_prepare,
+	.mpll_cfg		= imx_mpll_cfg,
+	.cur_ctr		= imx_cur_ctr,
+	.dev_type		= IMX6DL_HDMI,
+};
+
+static const struct of_device_id imx_hdmi_imx_ids[] = {
+	{ .compatible = "fsl,imx6q-hdmi",
+	  .data = &imx6q_hdmi_drv_data
+	}, {
+	  .compatible = "fsl,imx6dl-hdmi",
+	  .data = &imx6dl_hdmi_drv_data
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, imx_hdmi_imx_dt_ids);
+
+static int imx_hdmi_imx_probe(struct platform_device *pdev)
+{
+	const struct imx_hdmi_plat_data *plat_data;
+	const struct of_device_id *match;
+
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
+	match = of_match_node(imx_hdmi_imx_ids, pdev->dev.of_node);
+	plat_data = match->data;
+
+	return imx_hdmi_platform_register(pdev, plat_data);
+}
+
+static int imx_hdmi_imx_remove(struct platform_device *pdev)
+{
+	return imx_hdmi_platform_unregister(pdev);
+}
+
+static struct platform_driver imx_hdmi_imx_platform_driver = {
+	.probe  = imx_hdmi_imx_probe,
+	.remove = imx_hdmi_imx_remove,
+	.driver = {
+		.name = "dwhdmi-imx",
+		.owner = THIS_MODULE,
+		.of_match_table = imx_hdmi_imx_ids,
+	},
+};
+
+module_platform_driver(imx_hdmi_imx_platform_driver);
+
+MODULE_AUTHOR("Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
+MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:dwhdmi-imx");
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
index c2b035a..c7e5f12 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/staging/imx-drm/imx-hdmi.c
@@ -16,21 +16,16 @@
 #include <linux/irq.h>
 #include <linux/delay.h>
 #include <linux/err.h>
-#include <linux/clk.h>
 #include <linux/hdmi.h>
-#include <linux/regmap.h>
-#include <linux/mfd/syscon.h>
-#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/of_device.h>
 
+#include <drm/drm_of.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_encoder_slave.h>
-#include <video/imx-ipu-v3.h>
 
 #include "imx-hdmi.h"
-#include "imx-drm.h"
 
 #define HDMI_EDID_LEN		512
 
@@ -54,11 +49,6 @@ enum hdmi_datamap {
 	YCbCr422_12B = 0x12,
 };
 
-enum imx_hdmi_devtype {
-	IMX6Q_HDMI,
-	IMX6DL_HDMI,
-};
-
 static const u16 csc_coeff_default[3][4] = {
 	{ 0x2000, 0x0000, 0x0000, 0x0000 },
 	{ 0x0000, 0x2000, 0x0000, 0x0000 },
@@ -117,10 +107,10 @@ struct imx_hdmi {
 
 	enum imx_hdmi_devtype dev_type;
 	struct device *dev;
-	struct clk *isfr_clk;
-	struct clk *iahb_clk;
 
 	struct hdmi_data_info hdmi_data;
+	const struct imx_hdmi_plat_data *plat_data;
+	void *priv;
 	int vic;
 
 	u8 edid[HDMI_EDID_LEN];
@@ -137,13 +127,6 @@ struct imx_hdmi {
 	int ratio;
 };
 
-static void imx_hdmi_set_ipu_di_mux(struct imx_hdmi *hdmi, int ipu_di)
-{
-	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
-			   IMX6Q_GPR3_HDMI_MUX_CTL_MASK,
-			   ipu_di << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
-}
-
 static inline void hdmi_writeb(struct imx_hdmi *hdmi, u8 val, int offset)
 {
 	writeb(val, hdmi->regs + offset);
@@ -728,76 +711,13 @@ static void imx_hdmi_phy_sel_interface_control(struct imx_hdmi *hdmi, u8 enable)
 			 HDMI_PHY_CONF0_SELDIPIF_MASK);
 }
 
-enum {
-	RES_8,
-	RES_10,
-	RES_12,
-	RES_MAX,
-};
-
-struct mpll_config {
-	unsigned long mpixelclock;
-	struct {
-		u16 cpce;
-		u16 gmp;
-	} res[RES_MAX];
-};
-
-static const struct mpll_config mpll_config[] = {
-	{
-		45250000, {
-			{ 0x01e0, 0x0000 },
-			{ 0x21e1, 0x0000 },
-			{ 0x41e2, 0x0000 }
-		},
-	}, {
-		92500000, {
-			{ 0x0140, 0x0005 },
-			{ 0x2141, 0x0005 },
-			{ 0x4142, 0x0005 },
-		},
-	}, {
-		148500000, {
-			{ 0x00a0, 0x000a },
-			{ 0x20a1, 0x000a },
-			{ 0x40a2, 0x000a },
-		},
-	}, {
-		~0UL, {
-			{ 0x00a0, 0x000a },
-			{ 0x2001, 0x000f },
-			{ 0x4002, 0x000f },
-		},
-	}
-};
-
-struct curr_ctrl {
-	unsigned long mpixelclock;
-	u16 curr[RES_MAX];
-};
-
-static const struct curr_ctrl curr_ctrl[] = {
-	/*	pixelclk     bpp8    bpp10   bpp12 */
-	{
-		 54000000, { 0x091c, 0x091c, 0x06dc },
-	}, {
-		 58400000, { 0x091c, 0x06dc, 0x06dc },
-	}, {
-		 72000000, { 0x06dc, 0x06dc, 0x091c },
-	}, {
-		 74250000, { 0x06dc, 0x0b5c, 0x091c },
-	}, {
-		118800000, { 0x091c, 0x091c, 0x06dc },
-	}, {
-		216000000, { 0x06dc, 0x0b5c, 0x091c },
-	}
-};
-
 static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 			      unsigned char res, int cscon)
 {
 	unsigned res_idx, i;
 	u8 val, msec;
+	const struct mpll_config *mpll_cfg = hdmi->plat_data->mpll_cfg;
+	const struct curr_ctrl   *curr_ctr = hdmi->plat_data->cur_ctr;
 
 	if (prep)
 		return -EINVAL;
@@ -843,27 +763,27 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 	hdmi_phy_test_clear(hdmi, 0);
 
 	/* PLL/MPLL Cfg - always match on final entry */
-	for (i = 0; i < ARRAY_SIZE(mpll_config) - 1; i++)
+	for (i = 0; mpll_cfg[i].mpixelclock != (~0UL); i++)
 		if (hdmi->hdmi_data.video_mode.mpixelclock <=
-		    mpll_config[i].mpixelclock)
+		    mpll_cfg[i].mpixelclock)
 			break;
 
-	hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].cpce, 0x06);
-	hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].gmp, 0x15);
+	hdmi_phy_i2c_write(hdmi, mpll_cfg[i].res[res_idx].cpce, 0x06);
+	hdmi_phy_i2c_write(hdmi, mpll_cfg[i].res[res_idx].gmp, 0x15);
 
-	for (i = 0; i < ARRAY_SIZE(curr_ctrl); i++)
+	for (i = 0; curr_ctr[i].mpixelclock != (~0UL); i++)
 		if (hdmi->hdmi_data.video_mode.mpixelclock <=
-		    curr_ctrl[i].mpixelclock)
+		    curr_ctr[i].mpixelclock)
 			break;
 
-	if (i >= ARRAY_SIZE(curr_ctrl)) {
+	if (curr_ctr[i].mpixelclock == (~0UL)) {
 		dev_err(hdmi->dev, "Pixel clock %d - unsupported by HDMI\n",
 			hdmi->hdmi_data.video_mode.mpixelclock);
 		return -EINVAL;
 	}
 
 	/* CURRCTRL */
-	hdmi_phy_i2c_write(hdmi, curr_ctrl[i].curr[res_idx], 0x10);
+	hdmi_phy_i2c_write(hdmi, curr_ctr[i].curr[res_idx], 0x10);
 
 	hdmi_phy_i2c_write(hdmi, 0x0000, 0x13);  /* PLLPHBYCTRL */
 	hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
@@ -1453,21 +1373,29 @@ static void imx_hdmi_encoder_prepare(struct drm_encoder *encoder)
 	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
 
 	imx_hdmi_poweroff(hdmi);
-	imx_drm_panel_format(encoder, V4L2_PIX_FMT_RGB24);
+
+	if (hdmi->plat_data->encoder_prepare)
+		hdmi->plat_data->encoder_prepare(&hdmi->connector, encoder);
 }
 
 static void imx_hdmi_encoder_commit(struct drm_encoder *encoder)
 {
 	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
-	int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
 
-	imx_hdmi_set_ipu_di_mux(hdmi, mux);
+	if (hdmi->plat_data->encoder_commit)
+		hdmi->plat_data->encoder_commit(hdmi->priv, encoder);
 
 	imx_hdmi_poweron(hdmi);
 }
 
+void imx_hdmi_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
 static struct drm_encoder_funcs imx_hdmi_encoder_funcs = {
-	.destroy = imx_drm_encoder_destroy,
+	.destroy = drm_encoder_cleanup,
 };
 
 static struct drm_encoder_helper_funcs imx_hdmi_encoder_helper_funcs = {
@@ -1483,7 +1411,7 @@ static struct drm_connector_funcs imx_hdmi_connector_funcs = {
 	.dpms = drm_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = imx_hdmi_connector_detect,
-	.destroy = imx_drm_connector_destroy,
+	.destroy = imx_hdmi_connector_destroy,
 };
 
 static struct drm_connector_helper_funcs imx_hdmi_connector_helper_funcs = {
@@ -1539,12 +1467,10 @@ static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
 
 static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
 {
-	int ret;
+	struct drm_encoder *encoder = &hdmi->encoder;
+	struct device *dev = hdmi->dev;
 
-	ret = imx_drm_encoder_parse_of(drm, &hdmi->encoder,
-				       hdmi->dev->of_node);
-	if (ret)
-		return ret;
+	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
 
 	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
 
@@ -1564,50 +1490,16 @@ static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static struct platform_device_id imx_hdmi_devtype[] = {
-	{
-		.name = "imx6q-hdmi",
-		.driver_data = IMX6Q_HDMI,
-	}, {
-		.name = "imx6dl-hdmi",
-		.driver_data = IMX6DL_HDMI,
-	}, { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(platform, imx_hdmi_devtype);
-
-static const struct of_device_id imx_hdmi_dt_ids[] = {
-{ .compatible = "fsl,imx6q-hdmi", .data = &imx_hdmi_devtype[IMX6Q_HDMI], },
-{ .compatible = "fsl,imx6dl-hdmi", .data = &imx_hdmi_devtype[IMX6DL_HDMI], },
-{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids);
-
 static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	const struct of_device_id *of_id =
-				of_match_device(imx_hdmi_dt_ids, dev);
+	struct imx_hdmi *hdmi = platform_get_drvdata(pdev);
 	struct drm_device *drm = data;
 	struct device_node *np = dev->of_node;
 	struct device_node *ddc_node;
-	struct imx_hdmi *hdmi;
 	struct resource *iores;
 	int ret, irq;
 
-	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
-	if (!hdmi)
-		return -ENOMEM;
-
-	hdmi->dev = dev;
-	hdmi->sample_rate = 48000;
-	hdmi->ratio = 100;
-
-	if (of_id) {
-		const struct platform_device_id *device_id = of_id->data;
-
-		hdmi->dev_type = device_id->driver_data;
-	}
-
 	ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
 	if (ddc_node) {
 		hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
@@ -1637,40 +1529,8 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	if (IS_ERR(hdmi->regs))
 		return PTR_ERR(hdmi->regs);
 
-	hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
-	if (IS_ERR(hdmi->regmap))
-		return PTR_ERR(hdmi->regmap);
-
-	hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
-	if (IS_ERR(hdmi->isfr_clk)) {
-		ret = PTR_ERR(hdmi->isfr_clk);
-		dev_err(hdmi->dev,
-			"Unable to get HDMI isfr clk: %d\n", ret);
-		return ret;
-	}
-
-	ret = clk_prepare_enable(hdmi->isfr_clk);
-	if (ret) {
-		dev_err(hdmi->dev,
-			"Cannot enable HDMI isfr clock: %d\n", ret);
-		return ret;
-	}
-
-	hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
-	if (IS_ERR(hdmi->iahb_clk)) {
-		ret = PTR_ERR(hdmi->iahb_clk);
-		dev_err(hdmi->dev,
-			"Unable to get HDMI iahb clk: %d\n", ret);
-		goto err_isfr;
-	}
-
-	ret = clk_prepare_enable(hdmi->iahb_clk);
-	if (ret) {
-		dev_err(hdmi->dev,
-			"Cannot enable HDMI iahb clock: %d\n", ret);
-		goto err_isfr;
-	}
-
+	if (hdmi->plat_data->setup)
+		hdmi->priv = hdmi->plat_data->setup(pdev);
 	/* Product and revision IDs */
 	dev_info(dev,
 		 "Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
@@ -1698,11 +1558,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	ret = imx_hdmi_fb_registered(hdmi);
 	if (ret)
-		goto err_iahb;
+		return ret;
 
 	ret = imx_hdmi_register(drm, hdmi);
 	if (ret)
-		goto err_iahb;
+		return ret;
 
 	/* Unmute interrupts */
 	hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
@@ -1710,13 +1570,6 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	dev_set_drvdata(dev, hdmi);
 
 	return 0;
-
-err_iahb:
-	clk_disable_unprepare(hdmi->iahb_clk);
-err_isfr:
-	clk_disable_unprepare(hdmi->isfr_clk);
-
-	return ret;
 }
 
 static void imx_hdmi_unbind(struct device *dev, struct device *master,
@@ -1729,9 +1582,8 @@ static void imx_hdmi_unbind(struct device *dev, struct device *master,
 
 	hdmi->connector.funcs->destroy(&hdmi->connector);
 	hdmi->encoder.funcs->destroy(&hdmi->encoder);
-
-	clk_disable_unprepare(hdmi->iahb_clk);
-	clk_disable_unprepare(hdmi->isfr_clk);
+	if (hdmi->plat_data->exit)
+		hdmi->plat_data->exit(hdmi->priv);
 	i2c_put_adapter(hdmi->ddc);
 }
 
@@ -1751,17 +1603,32 @@ static int imx_hdmi_platform_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct platform_driver imx_hdmi_driver = {
-	.probe  = imx_hdmi_platform_probe,
-	.remove = imx_hdmi_platform_remove,
-	.driver = {
-		.name = "imx-hdmi",
-		.owner = THIS_MODULE,
-		.of_match_table = imx_hdmi_dt_ids,
-	},
-};
+int imx_hdmi_platform_register(struct platform_device *pdev,
+			       const struct imx_hdmi_plat_data *plat_data)
+{
+	struct imx_hdmi *hdmi;
+
+	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return -ENOMEM;
 
-module_platform_driver(imx_hdmi_driver);
+	hdmi->plat_data = plat_data;
+	hdmi->dev = &pdev->dev;
+	hdmi->dev_type = plat_data->dev_type;
+	hdmi->sample_rate = 48000;
+	hdmi->ratio = 100;
+
+	platform_set_drvdata(pdev, hdmi);
+
+	return imx_hdmi_platform_probe(pdev);
+}
+EXPORT_SYMBOL_GPL(imx_hdmi_platform_register);
+
+int imx_hdmi_platform_unregister(struct platform_device *pdev)
+{
+	return imx_hdmi_platform_remove(pdev);
+}
+EXPORT_SYMBOL_GPL(imx_hdmi_platform_unregister);
 
 MODULE_AUTHOR("Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>");
 MODULE_DESCRIPTION("i.MX6 HDMI transmitter driver");
diff --git a/drivers/staging/imx-drm/imx-hdmi.h b/drivers/staging/imx-drm/imx-hdmi.h
index 39b6776..e67d60d 100644
--- a/drivers/staging/imx-drm/imx-hdmi.h
+++ b/drivers/staging/imx-drm/imx-hdmi.h
@@ -1029,4 +1029,47 @@ enum {
 	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_HIGH = 0x2,
 	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
 };
+
+enum {
+	RES_8,
+	RES_10,
+	RES_12,
+	RES_MAX,
+};
+
+enum imx_hdmi_devtype {
+	IMX6Q_HDMI,
+	IMX6DL_HDMI,
+};
+
+struct mpll_config {
+	unsigned long mpixelclock;
+	struct {
+		u16 cpce;
+		u16 gmp;
+	} res[RES_MAX];
+};
+
+struct curr_ctrl {
+	unsigned long mpixelclock;
+	u16 curr[RES_MAX];
+};
+
+struct imx_hdmi_plat_data {
+	void * (*setup)(struct platform_device *pdev);
+	void (*exit)(void *priv);
+	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
+	void (*encoder_prepare)(struct drm_connector *connector,
+				struct drm_encoder *encoder);
+	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
+					   struct drm_display_mode *mode);
+	const struct mpll_config *mpll_cfg;
+	const struct curr_ctrl *cur_ctr;
+	enum imx_hdmi_devtype dev_type;
+
+};
+
+int imx_hdmi_platform_register(struct platform_device *pdev,
+			       const struct imx_hdmi_plat_data *plat_data);
+int imx_hdmi_platform_unregister(struct platform_device *pdev);
 #endif /* __IMX_HDMI_H__ */
-- 
1.9.1


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[PATCH v7 4/7] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw-hdmi

[Andy Yan]

the original imx hdmi driver is under staging/imx-drm,
which depends on imx-drm, so move the imx hdmi drvier out
to drm/bridge and rename imx-hdmi to dw-hdmi

Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

---

Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2:
- use git format -M to generate these patch

 drivers/gpu/drm/bridge/Kconfig                     |   5 +
 drivers/gpu/drm/bridge/Makefile                    |   1 +
 .../imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c}        | 281 +++++++++++----------
 .../imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h}        |  46 +---
 drivers/staging/imx-drm/Kconfig                    |   1 +
 drivers/staging/imx-drm/Makefile                   |   2 +-
 drivers/staging/imx-drm/dw_hdmi-imx.c              |  70 ++---
 include/drm/bridge/dw_hdmi.h                       |  57 +++++
 8 files changed, 243 insertions(+), 220 deletions(-)
 rename drivers/{staging/imx-drm/imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c} (83%)
 rename drivers/{staging/imx-drm/imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h} (97%)
 create mode 100644 include/drm/bridge/dw_hdmi.h

diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 884923f..26162ef 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -3,3 +3,8 @@ config DRM_PTN3460
 	depends on DRM
 	select DRM_KMS_HELPER
 	---help---
+
+config DRM_DW_HDMI
+	bool "Synopsys DesignWare High-Definition Multimedia Interface"
+	depends on DRM
+	select DRM_KMS_HELPER
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index b4733e1..d8a8cfd 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -1,3 +1,4 @@
 ccflags-y := -Iinclude/drm
 
 obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
+obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
similarity index 83%
rename from drivers/staging/imx-drm/imx-hdmi.c
rename to drivers/gpu/drm/bridge/dw_hdmi.c
index c7e5f12..e9f0dfe 100644
--- a/drivers/staging/imx-drm/imx-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -6,8 +6,7 @@
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
- * SH-Mobile High-Definition Multimedia Interface (HDMI) driver
- * for SLISHDMI13T and SLIPHDMIT IP cores
+ * Designware High-Definition Multimedia Interface (HDMI) driver
  *
  * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski-Mmb7MZpHnFY@public.gmane.org>
  */
@@ -24,8 +23,9 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_encoder_slave.h>
+#include <drm/bridge/dw_hdmi.h>
 
-#include "imx-hdmi.h"
+#include "dw_hdmi.h"
 
 #define HDMI_EDID_LEN		512
 
@@ -101,15 +101,15 @@ struct hdmi_data_info {
 	struct hdmi_vmode video_mode;
 };
 
-struct imx_hdmi {
+struct dw_hdmi {
 	struct drm_connector connector;
 	struct drm_encoder encoder;
 
-	enum imx_hdmi_devtype dev_type;
+	enum dw_hdmi_devtype dev_type;
 	struct device *dev;
 
 	struct hdmi_data_info hdmi_data;
-	const struct imx_hdmi_plat_data *plat_data;
+	const struct dw_hdmi_plat_data *plat_data;
 	void *priv;
 	int vic;
 
@@ -127,17 +127,17 @@ struct imx_hdmi {
 	int ratio;
 };
 
-static inline void hdmi_writeb(struct imx_hdmi *hdmi, u8 val, int offset)
+static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
 {
 	writeb(val, hdmi->regs + offset);
 }
 
-static inline u8 hdmi_readb(struct imx_hdmi *hdmi, int offset)
+static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset)
 {
 	return readb(hdmi->regs + offset);
 }
 
-static void hdmi_modb(struct imx_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
+static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
 {
 	u8 val = hdmi_readb(hdmi, reg) & ~mask;
 
@@ -145,13 +145,13 @@ static void hdmi_modb(struct imx_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
 	hdmi_writeb(hdmi, val, reg);
 }
 
-static void hdmi_mask_writeb(struct imx_hdmi *hdmi, u8 data, unsigned int reg,
+static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg,
 			     u8 shift, u8 mask)
 {
 	hdmi_modb(hdmi, data << shift, mask, reg);
 }
 
-static void hdmi_set_clock_regenerator_n(struct imx_hdmi *hdmi,
+static void hdmi_set_clock_regenerator_n(struct dw_hdmi *hdmi,
 					 unsigned int value)
 {
 	hdmi_writeb(hdmi, value & 0xff, HDMI_AUD_N1);
@@ -162,7 +162,7 @@ static void hdmi_set_clock_regenerator_n(struct imx_hdmi *hdmi,
 	hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
 }
 
-static void hdmi_regenerate_cts(struct imx_hdmi *hdmi, unsigned int cts)
+static void hdmi_regenerate_cts(struct dw_hdmi *hdmi, unsigned int cts)
 {
 	/* Must be set/cleared first */
 	hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
@@ -309,7 +309,7 @@ static unsigned int hdmi_compute_cts(unsigned int freq, unsigned long pixel_clk,
 	return (cts * ratio) / 100;
 }
 
-static void hdmi_set_clk_regenerator(struct imx_hdmi *hdmi,
+static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi,
 				     unsigned long pixel_clk)
 {
 	unsigned int clk_n, clk_cts;
@@ -333,12 +333,12 @@ static void hdmi_set_clk_regenerator(struct imx_hdmi *hdmi,
 	hdmi_regenerate_cts(hdmi, clk_cts);
 }
 
-static void hdmi_init_clk_regenerator(struct imx_hdmi *hdmi)
+static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi)
 {
 	hdmi_set_clk_regenerator(hdmi, 74250000);
 }
 
-static void hdmi_clk_regenerator_update_pixel_clock(struct imx_hdmi *hdmi)
+static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi)
 {
 	hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock);
 }
@@ -350,7 +350,7 @@ static void hdmi_clk_regenerator_update_pixel_clock(struct imx_hdmi *hdmi)
  *			pin{31~24} <==> G[7:0]
  *			pin{15~8}  <==> B[7:0]
  */
-static void hdmi_video_sample(struct imx_hdmi *hdmi)
+static void hdmi_video_sample(struct dw_hdmi *hdmi)
 {
 	int color_format = 0;
 	u8 val;
@@ -406,12 +406,12 @@ static void hdmi_video_sample(struct imx_hdmi *hdmi)
 	hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1);
 }
 
-static int is_color_space_conversion(struct imx_hdmi *hdmi)
+static int is_color_space_conversion(struct dw_hdmi *hdmi)
 {
 	return hdmi->hdmi_data.enc_in_format != hdmi->hdmi_data.enc_out_format;
 }
 
-static int is_color_space_decimation(struct imx_hdmi *hdmi)
+static int is_color_space_decimation(struct dw_hdmi *hdmi)
 {
 	if (hdmi->hdmi_data.enc_out_format != YCBCR422_8BITS)
 		return 0;
@@ -421,7 +421,7 @@ static int is_color_space_decimation(struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static int is_color_space_interpolation(struct imx_hdmi *hdmi)
+static int is_color_space_interpolation(struct dw_hdmi *hdmi)
 {
 	if (hdmi->hdmi_data.enc_in_format != YCBCR422_8BITS)
 		return 0;
@@ -431,7 +431,7 @@ static int is_color_space_interpolation(struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static void imx_hdmi_update_csc_coeffs(struct imx_hdmi *hdmi)
+static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi)
 {
 	const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
 	unsigned i;
@@ -472,7 +472,7 @@ static void imx_hdmi_update_csc_coeffs(struct imx_hdmi *hdmi)
 		  HDMI_CSC_SCALE);
 }
 
-static void hdmi_video_csc(struct imx_hdmi *hdmi)
+static void hdmi_video_csc(struct dw_hdmi *hdmi)
 {
 	int color_depth = 0;
 	int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE;
@@ -500,7 +500,7 @@ static void hdmi_video_csc(struct imx_hdmi *hdmi)
 	hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK,
 		  HDMI_CSC_SCALE);
 
-	imx_hdmi_update_csc_coeffs(hdmi);
+	dw_hdmi_update_csc_coeffs(hdmi);
 }
 
 /*
@@ -508,7 +508,7 @@ static void hdmi_video_csc(struct imx_hdmi *hdmi)
  * for example, if input is YCC422 mode or repeater is used,
  * data should be repacked this module can be bypassed.
  */
-static void hdmi_video_packetize(struct imx_hdmi *hdmi)
+static void hdmi_video_packetize(struct dw_hdmi *hdmi)
 {
 	unsigned int color_depth = 0;
 	unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit;
@@ -605,40 +605,40 @@ static void hdmi_video_packetize(struct imx_hdmi *hdmi)
 		  HDMI_VP_CONF);
 }
 
-static inline void hdmi_phy_test_clear(struct imx_hdmi *hdmi,
+static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi,
 				       unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
 		  HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
 }
 
-static inline void hdmi_phy_test_enable(struct imx_hdmi *hdmi,
+static inline void hdmi_phy_test_enable(struct dw_hdmi *hdmi,
 					unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET,
 		  HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0);
 }
 
-static inline void hdmi_phy_test_clock(struct imx_hdmi *hdmi,
+static inline void hdmi_phy_test_clock(struct dw_hdmi *hdmi,
 				       unsigned char bit)
 {
 	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET,
 		  HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0);
 }
 
-static inline void hdmi_phy_test_din(struct imx_hdmi *hdmi,
+static inline void hdmi_phy_test_din(struct dw_hdmi *hdmi,
 				     unsigned char bit)
 {
 	hdmi_writeb(hdmi, bit, HDMI_PHY_TST1);
 }
 
-static inline void hdmi_phy_test_dout(struct imx_hdmi *hdmi,
+static inline void hdmi_phy_test_dout(struct dw_hdmi *hdmi,
 				      unsigned char bit)
 {
 	hdmi_writeb(hdmi, bit, HDMI_PHY_TST2);
 }
 
-static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
+static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec)
 {
 	while ((hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
 		if (msec-- == 0)
@@ -648,7 +648,7 @@ static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
 	return true;
 }
 
-static void __hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
+static void __hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
 				 unsigned char addr)
 {
 	hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
@@ -662,56 +662,56 @@ static void __hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
 	hdmi_phy_wait_i2c_done(hdmi, 1000);
 }
 
-static int hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
+static int hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
 			      unsigned char addr)
 {
 	__hdmi_phy_i2c_write(hdmi, data, addr);
 	return 0;
 }
 
-static void imx_hdmi_phy_enable_power(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_enable_power(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_PDZ_OFFSET,
 			 HDMI_PHY_CONF0_PDZ_MASK);
 }
 
-static void imx_hdmi_phy_enable_tmds(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_ENTMDS_OFFSET,
 			 HDMI_PHY_CONF0_ENTMDS_MASK);
 }
 
-static void imx_hdmi_phy_gen2_pddq(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET,
 			 HDMI_PHY_CONF0_GEN2_PDDQ_MASK);
 }
 
-static void imx_hdmi_phy_gen2_txpwron(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET,
 			 HDMI_PHY_CONF0_GEN2_TXPWRON_MASK);
 }
 
-static void imx_hdmi_phy_sel_data_en_pol(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_SELDATAENPOL_OFFSET,
 			 HDMI_PHY_CONF0_SELDATAENPOL_MASK);
 }
 
-static void imx_hdmi_phy_sel_interface_control(struct imx_hdmi *hdmi, u8 enable)
+static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable)
 {
 	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
 			 HDMI_PHY_CONF0_SELDIPIF_OFFSET,
 			 HDMI_PHY_CONF0_SELDIPIF_MASK);
 }
 
-static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
+static int hdmi_phy_configure(struct dw_hdmi *hdmi, unsigned char prep,
 			      unsigned char res, int cscon)
 {
 	unsigned res_idx, i;
@@ -746,10 +746,10 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 	hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL);
 
 	/* gen2 tx power off */
-	imx_hdmi_phy_gen2_txpwron(hdmi, 0);
+	dw_hdmi_phy_gen2_txpwron(hdmi, 0);
 
 	/* gen2 pddq */
-	imx_hdmi_phy_gen2_pddq(hdmi, 1);
+	dw_hdmi_phy_gen2_pddq(hdmi, 1);
 
 	/* PHY reset */
 	hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
@@ -796,15 +796,15 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 	/* REMOVE CLK TERM */
 	hdmi_phy_i2c_write(hdmi, 0x8000, 0x05);  /* CKCALCTRL */
 
-	imx_hdmi_phy_enable_power(hdmi, 1);
+	dw_hdmi_phy_enable_power(hdmi, 1);
 
 	/* toggle TMDS enable */
-	imx_hdmi_phy_enable_tmds(hdmi, 0);
-	imx_hdmi_phy_enable_tmds(hdmi, 1);
+	dw_hdmi_phy_enable_tmds(hdmi, 0);
+	dw_hdmi_phy_enable_tmds(hdmi, 1);
 
 	/* gen2 tx power on */
-	imx_hdmi_phy_gen2_txpwron(hdmi, 1);
-	imx_hdmi_phy_gen2_pddq(hdmi, 0);
+	dw_hdmi_phy_gen2_txpwron(hdmi, 1);
+	dw_hdmi_phy_gen2_pddq(hdmi, 0);
 
 	/*Wait for PHY PLL lock */
 	msec = 5;
@@ -825,7 +825,7 @@ static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
 	return 0;
 }
 
-static int imx_hdmi_phy_init(struct imx_hdmi *hdmi)
+static int dw_hdmi_phy_init(struct dw_hdmi *hdmi)
 {
 	int i, ret;
 	bool cscon = false;
@@ -836,10 +836,10 @@ static int imx_hdmi_phy_init(struct imx_hdmi *hdmi)
 
 	/* HDMI Phy spec says to do the phy initialization sequence twice */
 	for (i = 0; i < 2; i++) {
-		imx_hdmi_phy_sel_data_en_pol(hdmi, 1);
-		imx_hdmi_phy_sel_interface_control(hdmi, 0);
-		imx_hdmi_phy_enable_tmds(hdmi, 0);
-		imx_hdmi_phy_enable_power(hdmi, 0);
+		dw_hdmi_phy_sel_data_en_pol(hdmi, 1);
+		dw_hdmi_phy_sel_interface_control(hdmi, 0);
+		dw_hdmi_phy_enable_tmds(hdmi, 0);
+		dw_hdmi_phy_enable_power(hdmi, 0);
 
 		/* Enable CSC */
 		ret = hdmi_phy_configure(hdmi, 0, 8, cscon);
@@ -851,7 +851,7 @@ static int imx_hdmi_phy_init(struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static void hdmi_tx_hdcp_config(struct imx_hdmi *hdmi)
+static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi)
 {
 	u8 de;
 
@@ -870,7 +870,7 @@ static void hdmi_tx_hdcp_config(struct imx_hdmi *hdmi)
 		  HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1);
 }
 
-static void hdmi_config_AVI(struct imx_hdmi *hdmi)
+static void hdmi_config_AVI(struct dw_hdmi *hdmi)
 {
 	u8 val, pix_fmt, under_scan;
 	u8 act_ratio, coded_ratio, colorimetry, ext_colorimetry;
@@ -964,7 +964,7 @@ static void hdmi_config_AVI(struct imx_hdmi *hdmi)
 	hdmi_writeb(hdmi, 0, HDMI_FC_AVISRB1);
 }
 
-static void hdmi_av_composer(struct imx_hdmi *hdmi,
+static void hdmi_av_composer(struct dw_hdmi *hdmi,
 			     const struct drm_display_mode *mode)
 {
 	u8 inv_val;
@@ -1048,19 +1048,19 @@ static void hdmi_av_composer(struct imx_hdmi *hdmi,
 	hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH);
 }
 
-static void imx_hdmi_phy_disable(struct imx_hdmi *hdmi)
+static void dw_hdmi_phy_disable(struct dw_hdmi *hdmi)
 {
 	if (!hdmi->phy_enabled)
 		return;
 
-	imx_hdmi_phy_enable_tmds(hdmi, 0);
-	imx_hdmi_phy_enable_power(hdmi, 0);
+	dw_hdmi_phy_enable_tmds(hdmi, 0);
+	dw_hdmi_phy_enable_power(hdmi, 0);
 
 	hdmi->phy_enabled = false;
 }
 
 /* HDMI Initialization Step B.4 */
-static void imx_hdmi_enable_video_path(struct imx_hdmi *hdmi)
+static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi)
 {
 	u8 clkdis;
 
@@ -1089,13 +1089,13 @@ static void imx_hdmi_enable_video_path(struct imx_hdmi *hdmi)
 	}
 }
 
-static void hdmi_enable_audio_clk(struct imx_hdmi *hdmi)
+static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi)
 {
 	hdmi_modb(hdmi, 0, HDMI_MC_CLKDIS_AUDCLK_DISABLE, HDMI_MC_CLKDIS);
 }
 
 /* Workaround to clear the overflow condition */
-static void imx_hdmi_clear_overflow(struct imx_hdmi *hdmi)
+static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
 {
 	int count;
 	u8 val;
@@ -1113,19 +1113,19 @@ static void imx_hdmi_clear_overflow(struct imx_hdmi *hdmi)
 		hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
 }
 
-static void hdmi_enable_overflow_interrupts(struct imx_hdmi *hdmi)
+static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi)
 {
 	hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
 	hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
 }
 
-static void hdmi_disable_overflow_interrupts(struct imx_hdmi *hdmi)
+static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
 {
 	hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
 		    HDMI_IH_MUTE_FC_STAT2);
 }
 
-static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
+static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 {
 	int ret;
 
@@ -1177,12 +1177,12 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
 	hdmi_av_composer(hdmi, mode);
 
 	/* HDMI Initializateion Step B.2 */
-	ret = imx_hdmi_phy_init(hdmi);
+	ret = dw_hdmi_phy_init(hdmi);
 	if (ret)
 		return ret;
 
 	/* HDMI Initialization Step B.3 */
-	imx_hdmi_enable_video_path(hdmi);
+	dw_hdmi_enable_video_path(hdmi);
 
 	/* not for DVI mode */
 	if (hdmi->hdmi_data.video_mode.mdvi) {
@@ -1203,7 +1203,7 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
 	hdmi_video_sample(hdmi);
 	hdmi_tx_hdcp_config(hdmi);
 
-	imx_hdmi_clear_overflow(hdmi);
+	dw_hdmi_clear_overflow(hdmi);
 	if (hdmi->cable_plugin && !hdmi->hdmi_data.video_mode.mdvi)
 		hdmi_enable_overflow_interrupts(hdmi);
 
@@ -1211,7 +1211,7 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
 }
 
 /* Wait until we are registered to enable interrupts */
-static int imx_hdmi_fb_registered(struct imx_hdmi *hdmi)
+static int dw_hdmi_fb_registered(struct dw_hdmi *hdmi)
 {
 	hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
 		    HDMI_PHY_I2CM_INT_ADDR);
@@ -1229,7 +1229,7 @@ static int imx_hdmi_fb_registered(struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static void initialize_hdmi_ih_mutes(struct imx_hdmi *hdmi)
+static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi)
 {
 	u8 ih_mute;
 
@@ -1281,29 +1281,29 @@ static void initialize_hdmi_ih_mutes(struct imx_hdmi *hdmi)
 	hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
 }
 
-static void imx_hdmi_poweron(struct imx_hdmi *hdmi)
+static void dw_hdmi_poweron(struct dw_hdmi *hdmi)
 {
-	imx_hdmi_setup(hdmi, &hdmi->previous_mode);
+	dw_hdmi_setup(hdmi, &hdmi->previous_mode);
 }
 
-static void imx_hdmi_poweroff(struct imx_hdmi *hdmi)
+static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
 {
-	imx_hdmi_phy_disable(hdmi);
+	dw_hdmi_phy_disable(hdmi);
 }
 
-static enum drm_connector_status imx_hdmi_connector_detect(struct drm_connector
+static enum drm_connector_status dw_hdmi_connector_detect(struct drm_connector
 							*connector, bool force)
 {
-	struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
 
 	return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
 		connector_status_connected : connector_status_disconnected;
 }
 
-static int imx_hdmi_connector_get_modes(struct drm_connector *connector)
+static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 {
-	struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
 	struct edid *edid;
 	int ret;
@@ -1326,102 +1326,102 @@ static int imx_hdmi_connector_get_modes(struct drm_connector *connector)
 	return 0;
 }
 
-static struct drm_encoder *imx_hdmi_connector_best_encoder(struct drm_connector
+static struct drm_encoder *dw_hdmi_connector_best_encoder(struct drm_connector
 							   *connector)
 {
-	struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
 
 	return &hdmi->encoder;
 }
 
-static void imx_hdmi_encoder_mode_set(struct drm_encoder *encoder,
+static void dw_hdmi_encoder_mode_set(struct drm_encoder *encoder,
 			struct drm_display_mode *mode,
 			struct drm_display_mode *adjusted_mode)
 {
-	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
+	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
 
-	imx_hdmi_setup(hdmi, mode);
+	dw_hdmi_setup(hdmi, mode);
 
 	/* Store the display mode for plugin/DKMS poweron events */
 	memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
 }
 
-static bool imx_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
+static bool dw_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
 			const struct drm_display_mode *mode,
 			struct drm_display_mode *adjusted_mode)
 {
 	return true;
 }
 
-static void imx_hdmi_encoder_disable(struct drm_encoder *encoder)
+static void dw_hdmi_encoder_disable(struct drm_encoder *encoder)
 {
 }
 
-static void imx_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode)
+static void dw_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode)
 {
-	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
+	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
 
 	if (mode)
-		imx_hdmi_poweroff(hdmi);
+		dw_hdmi_poweroff(hdmi);
 	else
-		imx_hdmi_poweron(hdmi);
+		dw_hdmi_poweron(hdmi);
 }
 
-static void imx_hdmi_encoder_prepare(struct drm_encoder *encoder)
+static void dw_hdmi_encoder_prepare(struct drm_encoder *encoder)
 {
-	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
+	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
 
-	imx_hdmi_poweroff(hdmi);
+	dw_hdmi_poweroff(hdmi);
 
 	if (hdmi->plat_data->encoder_prepare)
 		hdmi->plat_data->encoder_prepare(&hdmi->connector, encoder);
 }
 
-static void imx_hdmi_encoder_commit(struct drm_encoder *encoder)
+static void dw_hdmi_encoder_commit(struct drm_encoder *encoder)
 {
-	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
+	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
 
 	if (hdmi->plat_data->encoder_commit)
 		hdmi->plat_data->encoder_commit(hdmi->priv, encoder);
 
-	imx_hdmi_poweron(hdmi);
+	dw_hdmi_poweron(hdmi);
 }
 
-void imx_hdmi_connector_destroy(struct drm_connector *connector)
+void dw_hdmi_connector_destroy(struct drm_connector *connector)
 {
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 }
 
-static struct drm_encoder_funcs imx_hdmi_encoder_funcs = {
+static struct drm_encoder_funcs dw_hdmi_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
 
-static struct drm_encoder_helper_funcs imx_hdmi_encoder_helper_funcs = {
-	.dpms = imx_hdmi_encoder_dpms,
-	.prepare = imx_hdmi_encoder_prepare,
-	.commit = imx_hdmi_encoder_commit,
-	.mode_set = imx_hdmi_encoder_mode_set,
-	.mode_fixup = imx_hdmi_encoder_mode_fixup,
-	.disable = imx_hdmi_encoder_disable,
+static struct drm_encoder_helper_funcs dw_hdmi_encoder_helper_funcs = {
+	.dpms = dw_hdmi_encoder_dpms,
+	.prepare = dw_hdmi_encoder_prepare,
+	.commit = dw_hdmi_encoder_commit,
+	.mode_set = dw_hdmi_encoder_mode_set,
+	.mode_fixup = dw_hdmi_encoder_mode_fixup,
+	.disable = dw_hdmi_encoder_disable,
 };
 
-static struct drm_connector_funcs imx_hdmi_connector_funcs = {
+static struct drm_connector_funcs dw_hdmi_connector_funcs = {
 	.dpms = drm_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
-	.detect = imx_hdmi_connector_detect,
-	.destroy = imx_hdmi_connector_destroy,
+	.detect = dw_hdmi_connector_detect,
+	.destroy = dw_hdmi_connector_destroy,
 };
 
-static struct drm_connector_helper_funcs imx_hdmi_connector_helper_funcs = {
-	.get_modes = imx_hdmi_connector_get_modes,
-	.best_encoder = imx_hdmi_connector_best_encoder,
+static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
+	.get_modes = dw_hdmi_connector_get_modes,
+	.best_encoder = dw_hdmi_connector_best_encoder,
 };
 
-static irqreturn_t imx_hdmi_hardirq(int irq, void *dev_id)
+static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
 {
-	struct imx_hdmi *hdmi = dev_id;
+	struct dw_hdmi *hdmi = dev_id;
 	u8 intr_stat;
 
 	intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
@@ -1431,9 +1431,9 @@ static irqreturn_t imx_hdmi_hardirq(int irq, void *dev_id)
 	return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE;
 }
 
-static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
+static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 {
-	struct imx_hdmi *hdmi = dev_id;
+	struct dw_hdmi *hdmi = dev_id;
 	u8 intr_stat;
 	u8 phy_int_pol;
 
@@ -1447,14 +1447,14 @@ static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
 
 			hdmi_modb(hdmi, 0, HDMI_PHY_HPD, HDMI_PHY_POL0);
 
-			imx_hdmi_poweron(hdmi);
+			dw_hdmi_poweron(hdmi);
 		} else {
 			dev_dbg(hdmi->dev, "EVENT=plugout\n");
 
 			hdmi_modb(hdmi, HDMI_PHY_HPD, HDMI_PHY_HPD,
 				  HDMI_PHY_POL0);
 
-			imx_hdmi_poweroff(hdmi);
+			dw_hdmi_poweroff(hdmi);
 		}
 		drm_helper_hpd_irq_event(hdmi->connector.dev);
 	}
@@ -1465,7 +1465,7 @@ static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
+static int dw_hdmi_register(struct drm_device *drm, struct dw_hdmi *hdmi)
 {
 	struct drm_encoder *encoder = &hdmi->encoder;
 	struct device *dev = hdmi->dev;
@@ -1474,13 +1474,13 @@ static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
 
 	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
 
-	drm_encoder_helper_add(&hdmi->encoder, &imx_hdmi_encoder_helper_funcs);
-	drm_encoder_init(drm, &hdmi->encoder, &imx_hdmi_encoder_funcs,
+	drm_encoder_helper_add(&hdmi->encoder, &dw_hdmi_encoder_helper_funcs);
+	drm_encoder_init(drm, &hdmi->encoder, &dw_hdmi_encoder_funcs,
 			 DRM_MODE_ENCODER_TMDS);
 
 	drm_connector_helper_add(&hdmi->connector,
-				 &imx_hdmi_connector_helper_funcs);
-	drm_connector_init(drm, &hdmi->connector, &imx_hdmi_connector_funcs,
+				 &dw_hdmi_connector_helper_funcs);
+	drm_connector_init(drm, &hdmi->connector, &dw_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
 
 	hdmi->connector.encoder = &hdmi->encoder;
@@ -1490,10 +1490,10 @@ static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
+static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct imx_hdmi *hdmi = platform_get_drvdata(pdev);
+	struct dw_hdmi *hdmi = platform_get_drvdata(pdev);
 	struct drm_device *drm = data;
 	struct device_node *np = dev->of_node;
 	struct device_node *ddc_node;
@@ -1518,8 +1518,8 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	if (irq < 0)
 		return irq;
 
-	ret = devm_request_threaded_irq(dev, irq, imx_hdmi_hardirq,
-					imx_hdmi_irq, IRQF_SHARED,
+	ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
+					dw_hdmi_irq, IRQF_SHARED,
 					dev_name(dev), hdmi);
 	if (ret)
 		return ret;
@@ -1556,11 +1556,11 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	/* Clear Hotplug interrupts */
 	hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0);
 
-	ret = imx_hdmi_fb_registered(hdmi);
+	ret = dw_hdmi_fb_registered(hdmi);
 	if (ret)
 		return ret;
 
-	ret = imx_hdmi_register(drm, hdmi);
+	ret = dw_hdmi_register(drm, hdmi);
 	if (ret)
 		return ret;
 
@@ -1572,10 +1572,10 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
 	return 0;
 }
 
-static void imx_hdmi_unbind(struct device *dev, struct device *master,
+static void dw_hdmi_unbind(struct device *dev, struct device *master,
 	void *data)
 {
-	struct imx_hdmi *hdmi = dev_get_drvdata(dev);
+	struct dw_hdmi *hdmi = dev_get_drvdata(dev);
 
 	/* Disable all interrupts */
 	hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
@@ -1588,25 +1588,25 @@ static void imx_hdmi_unbind(struct device *dev, struct device *master,
 }
 
 static const struct component_ops hdmi_ops = {
-	.bind	= imx_hdmi_bind,
-	.unbind	= imx_hdmi_unbind,
+	.bind	= dw_hdmi_bind,
+	.unbind	= dw_hdmi_unbind,
 };
 
-static int imx_hdmi_platform_probe(struct platform_device *pdev)
+static int dw_hdmi_platform_probe(struct platform_device *pdev)
 {
 	return component_add(&pdev->dev, &hdmi_ops);
 }
 
-static int imx_hdmi_platform_remove(struct platform_device *pdev)
+static int dw_hdmi_platform_remove(struct platform_device *pdev)
 {
 	component_del(&pdev->dev, &hdmi_ops);
 	return 0;
 }
 
-int imx_hdmi_platform_register(struct platform_device *pdev,
-			       const struct imx_hdmi_plat_data *plat_data)
+int dw_hdmi_platform_register(struct platform_device *pdev,
+			      const struct dw_hdmi_plat_data *plat_data)
 {
-	struct imx_hdmi *hdmi;
+	struct dw_hdmi *hdmi;
 
 	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
 	if (!hdmi)
@@ -1620,17 +1620,18 @@ int imx_hdmi_platform_register(struct platform_device *pdev,
 
 	platform_set_drvdata(pdev, hdmi);
 
-	return imx_hdmi_platform_probe(pdev);
+	return dw_hdmi_platform_probe(pdev);
 }
-EXPORT_SYMBOL_GPL(imx_hdmi_platform_register);
+EXPORT_SYMBOL_GPL(dw_hdmi_platform_register);
 
-int imx_hdmi_platform_unregister(struct platform_device *pdev)
+int dw_hdmi_platform_unregister(struct platform_device *pdev)
 {
-	return imx_hdmi_platform_remove(pdev);
+	return dw_hdmi_platform_remove(pdev);
 }
-EXPORT_SYMBOL_GPL(imx_hdmi_platform_unregister);
+EXPORT_SYMBOL_GPL(dw_hdmi_platform_unregister);
 
 MODULE_AUTHOR("Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>");
-MODULE_DESCRIPTION("i.MX6 HDMI transmitter driver");
+MODULE_AUTHOR("Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
+MODULE_DESCRIPTION("DW HDMI transmitter driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:imx-hdmi");
+MODULE_ALIAS("platform:dw-hdmi");
diff --git a/drivers/staging/imx-drm/imx-hdmi.h b/drivers/gpu/drm/bridge/dw_hdmi.h
similarity index 97%
rename from drivers/staging/imx-drm/imx-hdmi.h
rename to drivers/gpu/drm/bridge/dw_hdmi.h
index e67d60d..b8412a9 100644
--- a/drivers/staging/imx-drm/imx-hdmi.h
+++ b/drivers/gpu/drm/bridge/dw_hdmi.h
@@ -7,8 +7,8 @@
  * (at your option) any later version.
  */
 
-#ifndef __IMX_HDMI_H__
-#define __IMX_HDMI_H__
+#ifndef __DW_HDMI__
+#define __DW_HDMI__
 
 /* Identification Registers */
 #define HDMI_DESIGN_ID                          0x0000
@@ -1030,46 +1030,4 @@ enum {
 	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
 };
 
-enum {
-	RES_8,
-	RES_10,
-	RES_12,
-	RES_MAX,
-};
-
-enum imx_hdmi_devtype {
-	IMX6Q_HDMI,
-	IMX6DL_HDMI,
-};
-
-struct mpll_config {
-	unsigned long mpixelclock;
-	struct {
-		u16 cpce;
-		u16 gmp;
-	} res[RES_MAX];
-};
-
-struct curr_ctrl {
-	unsigned long mpixelclock;
-	u16 curr[RES_MAX];
-};
-
-struct imx_hdmi_plat_data {
-	void * (*setup)(struct platform_device *pdev);
-	void (*exit)(void *priv);
-	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
-	void (*encoder_prepare)(struct drm_connector *connector,
-				struct drm_encoder *encoder);
-	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
-					   struct drm_display_mode *mode);
-	const struct mpll_config *mpll_cfg;
-	const struct curr_ctrl *cur_ctr;
-	enum imx_hdmi_devtype dev_type;
-
-};
-
-int imx_hdmi_platform_register(struct platform_device *pdev,
-			       const struct imx_hdmi_plat_data *plat_data);
-int imx_hdmi_platform_unregister(struct platform_device *pdev);
 #endif /* __IMX_HDMI_H__ */
diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
index ab31848..560e1d3 100644
--- a/drivers/staging/imx-drm/Kconfig
+++ b/drivers/staging/imx-drm/Kconfig
@@ -50,5 +50,6 @@ config DRM_IMX_IPUV3
 config DRM_IMX_HDMI
 	tristate "Freescale i.MX DRM HDMI"
 	depends on DRM_IMX
+	select DRM_DW_HDMI
 	help
 	  Choose this if you want to use HDMI on i.MX6.
diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
index 809027d..f3ecd89 100644
--- a/drivers/staging/imx-drm/Makefile
+++ b/drivers/staging/imx-drm/Makefile
@@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
 
 imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
 obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
-obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o dw_hdmi-imx.o
+obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o
diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
index 0db978e..4b48ea6 100644
--- a/drivers/staging/imx-drm/dw_hdmi-imx.c
+++ b/drivers/staging/imx-drm/dw_hdmi-imx.c
@@ -10,14 +10,14 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <drm/bridge/dw_hdmi.h>
 #include <video/imx-ipu-v3.h>
 #include <linux/regmap.h>
 #include <linux/clk.h>
 
 #include "imx-drm.h"
-#include "imx-hdmi.h"
 
-struct imx_hdmi_priv {
+struct imx_hdmi {
 	struct device *dev;
 	struct clk *isfr_clk;
 	struct clk *iahb_clk;
@@ -69,7 +69,7 @@ static const struct curr_ctrl imx_cur_ctr[] = {
 	}
 };
 
-static int imx_hdmi_parse_dt(struct imx_hdmi_priv *hdmi)
+static int dw_hdmi_parse_dt(struct imx_hdmi *hdmi)
 {
 	struct device_node *np = hdmi->dev->of_node;
 
@@ -94,9 +94,9 @@ static int imx_hdmi_parse_dt(struct imx_hdmi_priv *hdmi)
 	return 0;
 }
 
-static void *imx_hdmi_imx_setup(struct platform_device *pdev)
+static void *dw_hdmi_imx_setup(struct platform_device *pdev)
 {
-	struct imx_hdmi_priv *hdmi;
+	struct imx_hdmi *hdmi;
 	int ret;
 
 	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
@@ -104,7 +104,7 @@ static void *imx_hdmi_imx_setup(struct platform_device *pdev)
 		return ERR_PTR(-ENOMEM);
 	hdmi->dev = &pdev->dev;
 
-	ret = imx_hdmi_parse_dt(hdmi);
+	ret = dw_hdmi_parse_dt(hdmi);
 	if (ret < 0)
 		return ERR_PTR(ret);
 	ret = clk_prepare_enable(hdmi->isfr_clk);
@@ -124,18 +124,18 @@ static void *imx_hdmi_imx_setup(struct platform_device *pdev)
 	return hdmi;
 }
 
-static void imx_hdmi_imx_exit(void *priv)
+static void dw_hdmi_imx_exit(void *priv)
 {
-	struct imx_hdmi_priv *hdmi = (struct imx_hdmi_priv *)priv;
+	struct imx_hdmi *hdmi = (struct imx_hdmi *)priv;
 
 	clk_disable_unprepare(hdmi->isfr_clk);
 
 	clk_disable_unprepare(hdmi->iahb_clk);
 }
 
-static void imx_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
+static void dw_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
 {
-	struct imx_hdmi_priv *hdmi = (struct imx_hdmi_priv *)priv;
+	struct imx_hdmi *hdmi = (struct imx_hdmi *)priv;
 	int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
 
 	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
@@ -143,33 +143,33 @@ static void imx_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
 			   mux << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
 }
 
-static void imx_hdmi_imx_encoder_prepare(struct drm_connector *connector,
-					 struct drm_encoder *encoder)
+static void dw_hdmi_imx_encoder_prepare(struct drm_connector *connector,
+					struct drm_encoder *encoder)
 {
 	imx_drm_panel_format(encoder, V4L2_PIX_FMT_RGB24);
 }
 
-static struct imx_hdmi_plat_data imx6q_hdmi_drv_data = {
-	.setup			= imx_hdmi_imx_setup,
-	.exit			= imx_hdmi_imx_exit,
-	.encoder_commit		= imx_hdmi_imx_encoder_commit,
-	.encoder_prepare	= imx_hdmi_imx_encoder_prepare,
+static struct dw_hdmi_plat_data imx6q_hdmi_drv_data = {
+	.setup			= dw_hdmi_imx_setup,
+	.exit			= dw_hdmi_imx_exit,
+	.encoder_commit		= dw_hdmi_imx_encoder_commit,
+	.encoder_prepare	= dw_hdmi_imx_encoder_prepare,
 	.mpll_cfg		= imx_mpll_cfg,
 	.cur_ctr		= imx_cur_ctr,
 	.dev_type		= IMX6Q_HDMI,
 };
 
-static struct imx_hdmi_plat_data imx6dl_hdmi_drv_data = {
-	.setup			= imx_hdmi_imx_setup,
-	.exit			= imx_hdmi_imx_exit,
-	.encoder_commit		= imx_hdmi_imx_encoder_commit,
-	.encoder_prepare	= imx_hdmi_imx_encoder_prepare,
+static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
+	.setup			= dw_hdmi_imx_setup,
+	.exit			= dw_hdmi_imx_exit,
+	.encoder_commit		= dw_hdmi_imx_encoder_commit,
+	.encoder_prepare	= dw_hdmi_imx_encoder_prepare,
 	.mpll_cfg		= imx_mpll_cfg,
 	.cur_ctr		= imx_cur_ctr,
 	.dev_type		= IMX6DL_HDMI,
 };
 
-static const struct of_device_id imx_hdmi_imx_ids[] = {
+static const struct of_device_id dw_hdmi_imx_ids[] = {
 	{ .compatible = "fsl,imx6q-hdmi",
 	  .data = &imx6q_hdmi_drv_data
 	}, {
@@ -178,38 +178,38 @@ static const struct of_device_id imx_hdmi_imx_ids[] = {
 	},
 	{},
 };
-MODULE_DEVICE_TABLE(of, imx_hdmi_imx_dt_ids);
+MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
 
-static int imx_hdmi_imx_probe(struct platform_device *pdev)
+static int dw_hdmi_imx_probe(struct platform_device *pdev)
 {
-	const struct imx_hdmi_plat_data *plat_data;
+	const struct dw_hdmi_plat_data *plat_data;
 	const struct of_device_id *match;
 
 	if (!pdev->dev.of_node)
 		return -ENODEV;
 
-	match = of_match_node(imx_hdmi_imx_ids, pdev->dev.of_node);
+	match = of_match_node(dw_hdmi_imx_ids, pdev->dev.of_node);
 	plat_data = match->data;
 
-	return imx_hdmi_platform_register(pdev, plat_data);
+	return dw_hdmi_platform_register(pdev, plat_data);
 }
 
-static int imx_hdmi_imx_remove(struct platform_device *pdev)
+static int dw_hdmi_imx_remove(struct platform_device *pdev)
 {
-	return imx_hdmi_platform_unregister(pdev);
+	return dw_hdmi_platform_unregister(pdev);
 }
 
-static struct platform_driver imx_hdmi_imx_platform_driver = {
-	.probe  = imx_hdmi_imx_probe,
-	.remove = imx_hdmi_imx_remove,
+static struct platform_driver dw_hdmi_imx_platform_driver = {
+	.probe  = dw_hdmi_imx_probe,
+	.remove = dw_hdmi_imx_remove,
 	.driver = {
 		.name = "dwhdmi-imx",
 		.owner = THIS_MODULE,
-		.of_match_table = imx_hdmi_imx_ids,
+		.of_match_table = dw_hdmi_imx_ids,
 	},
 };
 
-module_platform_driver(imx_hdmi_imx_platform_driver);
+module_platform_driver(dw_hdmi_imx_platform_driver);
 
 MODULE_AUTHOR("Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
 MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
new file mode 100644
index 0000000..6683b63
--- /dev/null
+++ b/include/drm/bridge/dw_hdmi.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ */
+
+#ifndef __DW_HDMI_H__
+#define __DW_HDMI_H__
+
+#include <drm/drmP.h>
+
+enum {
+	RES_8,
+	RES_10,
+	RES_12,
+	RES_MAX,
+};
+
+enum dw_hdmi_devtype {
+	IMX6Q_HDMI,
+	IMX6DL_HDMI,
+};
+
+struct mpll_config {
+	unsigned long mpixelclock;
+	struct {
+		u16 cpce;
+		u16 gmp;
+	} res[RES_MAX];
+};
+
+struct curr_ctrl {
+	unsigned long mpixelclock;
+	u16 curr[RES_MAX];
+};
+
+struct dw_hdmi_plat_data {
+	void * (*setup)(struct platform_device *pdev);
+	void (*exit)(void *priv);
+	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
+	void (*encoder_prepare)(struct drm_connector *connector,
+				struct drm_encoder *encoder);
+	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
+					   struct drm_display_mode *mode);
+	const struct mpll_config *mpll_cfg;
+	const struct curr_ctrl *cur_ctr;
+	enum dw_hdmi_devtype dev_type;
+
+};
+
+int dw_hdmi_platform_register(struct platform_device *pdev,
+			      const struct dw_hdmi_plat_data *plat_data);
+int dw_hdmi_platform_unregister(struct platform_device *pdev);
+#endif /* __IMX_HDMI_H__ */
-- 
1.9.1


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Re: [PATCH v7 4/7] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw-hdmi

[Zubair Lutfullah Kakakhel]

Hi Andy,

On 11/11/14 12:53, Andy Yan wrote:
> the original imx hdmi driver is under staging/imx-drm,
> which depends on imx-drm, so move the imx hdmi drvier out

Spelling mistake. 				^'driver'

> to drm/bridge and rename imx-hdmi to dw-hdmi
				      ^dw_hdmi

> 
> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
> 
> ---
> 
> Changes in v7: None
> Changes in v6: None
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
> - use git format -M to generate these patch
> 
>  drivers/gpu/drm/bridge/Kconfig                     |   5 +
>  drivers/gpu/drm/bridge/Makefile                    |   1 +
>  .../imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c}        | 281 +++++++++++----------
>  .../imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h}        |  46 +---
>  drivers/staging/imx-drm/Kconfig                    |   1 +
>  drivers/staging/imx-drm/Makefile                   |   2 +-
>  drivers/staging/imx-drm/dw_hdmi-imx.c              |  70 ++---
>  include/drm/bridge/dw_hdmi.h                       |  57 +++++
>  8 files changed, 243 insertions(+), 220 deletions(-)
>  rename drivers/{staging/imx-drm/imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c} (83%)
>  rename drivers/{staging/imx-drm/imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h} (97%)
>  create mode 100644 include/drm/bridge/dw_hdmi.h
> 
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index 884923f..26162ef 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -3,3 +3,8 @@ config DRM_PTN3460
>  	depends on DRM
>  	select DRM_KMS_HELPER
>  	---help---
> +
> +config DRM_DW_HDMI
> +	bool "Synopsys DesignWare High-Definition Multimedia Interface"
> +	depends on DRM
> +	select DRM_KMS_HELPER
> diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
> index b4733e1..d8a8cfd 100644
> --- a/drivers/gpu/drm/bridge/Makefile
> +++ b/drivers/gpu/drm/bridge/Makefile
> @@ -1,3 +1,4 @@
>  ccflags-y := -Iinclude/drm
>  
>  obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
> +obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
> diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
> similarity index 83%
> rename from drivers/staging/imx-drm/imx-hdmi.c
> rename to drivers/gpu/drm/bridge/dw_hdmi.c
> index c7e5f12..e9f0dfe 100644
> --- a/drivers/staging/imx-drm/imx-hdmi.c
> +++ b/drivers/gpu/drm/bridge/dw_hdmi.c
> @@ -6,8 +6,7 @@
>   * the Free Software Foundation; either version 2 of the License, or
>   * (at your option) any later version.
>   *
> - * SH-Mobile High-Definition Multimedia Interface (HDMI) driver
> - * for SLISHDMI13T and SLIPHDMIT IP cores

...

> diff --git a/drivers/staging/imx-drm/imx-hdmi.h b/drivers/gpu/drm/bridge/dw_hdmi.h
> similarity index 97%
> rename from drivers/staging/imx-drm/imx-hdmi.h
> rename to drivers/gpu/drm/bridge/dw_hdmi.h
> index e67d60d..b8412a9 100644
> --- a/drivers/staging/imx-drm/imx-hdmi.h
> +++ b/drivers/gpu/drm/bridge/dw_hdmi.h
> @@ -7,8 +7,8 @@
>   * (at your option) any later version.
>   */
>  
> -#ifndef __IMX_HDMI_H__
> -#define __IMX_HDMI_H__
> +#ifndef __DW_HDMI__
> +#define __DW_HDMI__
>  
>  /* Identification Registers */
>  #define HDMI_DESIGN_ID                          0x0000
> @@ -1030,46 +1030,4 @@ enum {
>  	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
>  };
>  
> -enum {
> -	RES_8,
> -	RES_10,
> -	RES_12,
> -	RES_MAX,
> -};
> -
> -enum imx_hdmi_devtype {
> -	IMX6Q_HDMI,
> -	IMX6DL_HDMI,
> -};
> -
> -struct mpll_config {
> -	unsigned long mpixelclock;
> -	struct {
> -		u16 cpce;
> -		u16 gmp;
> -	} res[RES_MAX];
> -};
> -
> -struct curr_ctrl {
> -	unsigned long mpixelclock;
> -	u16 curr[RES_MAX];
> -};
> -
> -struct imx_hdmi_plat_data {
> -	void * (*setup)(struct platform_device *pdev);
> -	void (*exit)(void *priv);
> -	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
> -	void (*encoder_prepare)(struct drm_connector *connector,
> -				struct drm_encoder *encoder);
> -	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> -					   struct drm_display_mode *mode);
> -	const struct mpll_config *mpll_cfg;
> -	const struct curr_ctrl *cur_ctr;
> -	enum imx_hdmi_devtype dev_type;
> -
> -};
> -
> -int imx_hdmi_platform_register(struct platform_device *pdev,
> -			       const struct imx_hdmi_plat_data *plat_data);
> -int imx_hdmi_platform_unregister(struct platform_device *pdev);

Doesn't this change belong in the previous splitting patch?

>  #endif /* __IMX_HDMI_H__ */
> diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
> index ab31848..560e1d3 100644
> --- a/drivers/staging/imx-drm/Kconfig
> +++ b/drivers/staging/imx-drm/Kconfig
> @@ -50,5 +50,6 @@ config DRM_IMX_IPUV3
>  config DRM_IMX_HDMI
>  	tristate "Freescale i.MX DRM HDMI"
>  	depends on DRM_IMX
> +	select DRM_DW_HDMI
>  	help
>  	  Choose this if you want to use HDMI on i.MX6.
> diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
> index 809027d..f3ecd89 100644
> --- a/drivers/staging/imx-drm/Makefile
> +++ b/drivers/staging/imx-drm/Makefile
> @@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
>  
>  imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
>  obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
> -obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o dw_hdmi-imx.o
> +obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o
> diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
> index 0db978e..4b48ea6 100644
> --- a/drivers/staging/imx-drm/dw_hdmi-imx.c
> +++ b/drivers/staging/imx-drm/dw_hdmi-imx.c

All other files in imx-drm/ are named imx-xyz.

no underscore either.

I wonder if they are ok with dw_hdmi-imx.c

How about imx-dw-hdmi.c 
and imx-dw-hdmi.h ?

> @@ -10,14 +10,14 @@
>  #include <linux/platform_device.h>
>  #include <linux/mfd/syscon.h>
>  #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
> +#include <drm/bridge/dw_hdmi.h>
>  #include <video/imx-ipu-v3.h>
>  #include <linux/regmap.h>
>  #include <linux/clk.h>
>  
>  #include "imx-drm.h"
> -#include "imx-hdmi.h"
>  
>  
> -static const struct of_device_id imx_hdmi_imx_ids[] = {
> +static const struct of_device_id dw_hdmi_imx_ids[] = {
>  	{ .compatible = "fsl,imx6q-hdmi",
>  	  .data = &imx6q_hdmi_drv_data

Weren't there multiple compatible strings in imx-hdmi.c?

>  	}, {
> @@ -178,38 +178,38 @@ static const struct of_device_id imx_hdmi_imx_ids[] = {
>  	},
>  	{},
>  };
> -MODULE_DEVICE_TABLE(of, imx_hdmi_imx_dt_ids);
> +MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
>  

...

> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
> new file mode 100644
> index 0000000..6683b63
> --- /dev/null
> +++ b/include/drm/bridge/dw_hdmi.h
> @@ -0,0 +1,57 @@
> +/*
> + * Copyright (C) 2011 Freescale Semiconductor, Inc.
> + *
> + * 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.
> + */
> +
> +#ifndef __DW_HDMI_H__
> +#define __DW_HDMI_H__
> +
> +#include <drm/drmP.h>
> +
> +enum {
> +	RES_8,
> +	RES_10,
> +	RES_12,
> +	RES_MAX,
> +};
> +
> +enum dw_hdmi_devtype {
> +	IMX6Q_HDMI,
> +	IMX6DL_HDMI,
> +};

This enum going into dw_hdmi.
Does this mean that dw hdmi code still has some SoC specific things left?
Where is this needed.

> +
> +struct mpll_config {
> +	unsigned long mpixelclock;
> +	struct {
> +		u16 cpce;
> +		u16 gmp;
> +	} res[RES_MAX];
> +};
> +
> +struct curr_ctrl {
> +	unsigned long mpixelclock;
> +	u16 curr[RES_MAX];
> +};
> +
> +struct dw_hdmi_plat_data {
> +	void * (*setup)(struct platform_device *pdev);
> +	void (*exit)(void *priv);
> +	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
> +	void (*encoder_prepare)(struct drm_connector *connector,
> +				struct drm_encoder *encoder);
> +	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> +					   struct drm_display_mode *mode);
> +	const struct mpll_config *mpll_cfg;
> +	const struct curr_ctrl *cur_ctr;
> +	enum dw_hdmi_devtype dev_type;
> +
> +};
> +
> +int dw_hdmi_platform_register(struct platform_device *pdev,
> +			      const struct dw_hdmi_plat_data *plat_data);
> +int dw_hdmi_platform_unregister(struct platform_device *pdev);
> +#endif /* __IMX_HDMI_H__ */
> 

Regards
ZubairLK

Re: [PATCH v7 4/7] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw-hdmi

[Andy Yan]

On 2014年11月11日 22:16, Zubair Lutfullah Kakakhel wrote:
> Hi Andy,
>
> On 11/11/14 12:53, Andy Yan wrote:
>> the original imx hdmi driver is under staging/imx-drm,
>> which depends on imx-drm, so move the imx hdmi drvier out
> Spelling mistake. 				^'driver'
>
>> to drm/bridge and rename imx-hdmi to dw-hdmi
> 				      ^dw_hdmi
  thanks , these will be fixed in v8
>> Signed-off-by: Andy Yan <andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
>>
>> ---
>>
>> Changes in v7: None
>> Changes in v6: None
>> Changes in v5: None
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2:
>> - use git format -M to generate these patch
>>
>>   drivers/gpu/drm/bridge/Kconfig                     |   5 +
>>   drivers/gpu/drm/bridge/Makefile                    |   1 +
>>   .../imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c}        | 281 +++++++++++----------
>>   .../imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h}        |  46 +---
>>   drivers/staging/imx-drm/Kconfig                    |   1 +
>>   drivers/staging/imx-drm/Makefile                   |   2 +-
>>   drivers/staging/imx-drm/dw_hdmi-imx.c              |  70 ++---
>>   include/drm/bridge/dw_hdmi.h                       |  57 +++++
>>   8 files changed, 243 insertions(+), 220 deletions(-)
>>   rename drivers/{staging/imx-drm/imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c} (83%)
>>   rename drivers/{staging/imx-drm/imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h} (97%)
>>   create mode 100644 include/drm/bridge/dw_hdmi.h
>>
>> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
>> index 884923f..26162ef 100644
>> --- a/drivers/gpu/drm/bridge/Kconfig
>> +++ b/drivers/gpu/drm/bridge/Kconfig
>> @@ -3,3 +3,8 @@ config DRM_PTN3460
>>   	depends on DRM
>>   	select DRM_KMS_HELPER
>>   	---help---
>> +
>> +config DRM_DW_HDMI
>> +	bool "Synopsys DesignWare High-Definition Multimedia Interface"
>> +	depends on DRM
>> +	select DRM_KMS_HELPER
>> diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
>> index b4733e1..d8a8cfd 100644
>> --- a/drivers/gpu/drm/bridge/Makefile
>> +++ b/drivers/gpu/drm/bridge/Makefile
>> @@ -1,3 +1,4 @@
>>   ccflags-y := -Iinclude/drm
>>   
>>   obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
>> +obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
>> diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
>> similarity index 83%
>> rename from drivers/staging/imx-drm/imx-hdmi.c
>> rename to drivers/gpu/drm/bridge/dw_hdmi.c
>> index c7e5f12..e9f0dfe 100644
>> --- a/drivers/staging/imx-drm/imx-hdmi.c
>> +++ b/drivers/gpu/drm/bridge/dw_hdmi.c
>> @@ -6,8 +6,7 @@
>>    * the Free Software Foundation; either version 2 of the License, or
>>    * (at your option) any later version.
>>    *
>> - * SH-Mobile High-Definition Multimedia Interface (HDMI) driver
>> - * for SLISHDMI13T and SLIPHDMIT IP cores
> ...
>
>> diff --git a/drivers/staging/imx-drm/imx-hdmi.h b/drivers/gpu/drm/bridge/dw_hdmi.h
>> similarity index 97%
>> rename from drivers/staging/imx-drm/imx-hdmi.h
>> rename to drivers/gpu/drm/bridge/dw_hdmi.h
>> index e67d60d..b8412a9 100644
>> --- a/drivers/staging/imx-drm/imx-hdmi.h
>> +++ b/drivers/gpu/drm/bridge/dw_hdmi.h
>> @@ -7,8 +7,8 @@
>>    * (at your option) any later version.
>>    */
>>   
>> -#ifndef __IMX_HDMI_H__
>> -#define __IMX_HDMI_H__
>> +#ifndef __DW_HDMI__
>> +#define __DW_HDMI__
>>   
>>   /* Identification Registers */
>>   #define HDMI_DESIGN_ID                          0x0000
>> @@ -1030,46 +1030,4 @@ enum {
>>   	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
>>   };
>>   
>> -enum {
>> -	RES_8,
>> -	RES_10,
>> -	RES_12,
>> -	RES_MAX,
>> -};
>> -
>> -enum imx_hdmi_devtype {
>> -	IMX6Q_HDMI,
>> -	IMX6DL_HDMI,
>> -};
>> -
>> -struct mpll_config {
>> -	unsigned long mpixelclock;
>> -	struct {
>> -		u16 cpce;
>> -		u16 gmp;
>> -	} res[RES_MAX];
>> -};
>> -
>> -struct curr_ctrl {
>> -	unsigned long mpixelclock;
>> -	u16 curr[RES_MAX];
>> -};
>> -
>> -struct imx_hdmi_plat_data {
>> -	void * (*setup)(struct platform_device *pdev);
>> -	void (*exit)(void *priv);
>> -	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
>> -	void (*encoder_prepare)(struct drm_connector *connector,
>> -				struct drm_encoder *encoder);
>> -	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
>> -					   struct drm_display_mode *mode);
>> -	const struct mpll_config *mpll_cfg;
>> -	const struct curr_ctrl *cur_ctr;
>> -	enum imx_hdmi_devtype dev_type;
>> -
>> -};
>> -
>> -int imx_hdmi_platform_register(struct platform_device *pdev,
>> -			       const struct imx_hdmi_plat_data *plat_data);
>> -int imx_hdmi_platform_unregister(struct platform_device *pdev);
> Doesn't this change belong in the previous splitting patch?
     in previous splitting patch we put these in staging/imx-drm/imx-hdmi.h
    now we move these common  struct to include/drm/bridge/dw-hdmi.h
>
>>   #endif /* __IMX_HDMI_H__ */
>> diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
>> index ab31848..560e1d3 100644
>> --- a/drivers/staging/imx-drm/Kconfig
>> +++ b/drivers/staging/imx-drm/Kconfig
>> @@ -50,5 +50,6 @@ config DRM_IMX_IPUV3
>>   config DRM_IMX_HDMI
>>   	tristate "Freescale i.MX DRM HDMI"
>>   	depends on DRM_IMX
>> +	select DRM_DW_HDMI
>>   	help
>>   	  Choose this if you want to use HDMI on i.MX6.
>> diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
>> index 809027d..f3ecd89 100644
>> --- a/drivers/staging/imx-drm/Makefile
>> +++ b/drivers/staging/imx-drm/Makefile
>> @@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
>>   
>>   imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
>>   obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
>> -obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o dw_hdmi-imx.o
>> +obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o
>> diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
>> index 0db978e..4b48ea6 100644
>> --- a/drivers/staging/imx-drm/dw_hdmi-imx.c
>> +++ b/drivers/staging/imx-drm/dw_hdmi-imx.c
> All other files in imx-drm/ are named imx-xyz.
>
> no underscore either.
>
> I wonder if they are ok with dw_hdmi-imx.c
>
> How about imx-dw-hdmi.c
> and imx-dw-hdmi.h ?
   I see some dw ip drivers like dw-mmc and dwmac have
   name style like dw_xxx.c for core driver, dw_xx_yy.c
   for platform driver, so I keep the same with it.
>> @@ -10,14 +10,14 @@
>>   #include <linux/platform_device.h>
>>   #include <linux/mfd/syscon.h>
>>   #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
>> +#include <drm/bridge/dw_hdmi.h>
>>   #include <video/imx-ipu-v3.h>
>>   #include <linux/regmap.h>
>>   #include <linux/clk.h>
>>   
>>   #include "imx-drm.h"
>> -#include "imx-hdmi.h"
>>   
>>   
>> -static const struct of_device_id imx_hdmi_imx_ids[] = {
>> +static const struct of_device_id dw_hdmi_imx_ids[] = {
>>   	{ .compatible = "fsl,imx6q-hdmi",
>>   	  .data = &imx6q_hdmi_drv_data
> Weren't there multiple compatible strings in imx-hdmi.c?
   imx6q , imx6dl use different compatible strings for different
configuration in original imx-hdmi.c
>
>>   	}, {
>> @@ -178,38 +178,38 @@ static const struct of_device_id imx_hdmi_imx_ids[] = {
>>   	},
>>   	{},
>>   };
>> -MODULE_DEVICE_TABLE(of, imx_hdmi_imx_dt_ids);
>> +MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
>>   
> ...
>
>> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
>> new file mode 100644
>> index 0000000..6683b63
>> --- /dev/null
>> +++ b/include/drm/bridge/dw_hdmi.h
>> @@ -0,0 +1,57 @@
>> +/*
>> + * Copyright (C) 2011 Freescale Semiconductor, Inc.
>> + *
>> + * 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.
>> + */
>> +
>> +#ifndef __DW_HDMI_H__
>> +#define __DW_HDMI_H__
>> +
>> +#include <drm/drmP.h>
>> +
>> +enum {
>> +	RES_8,
>> +	RES_10,
>> +	RES_12,
>> +	RES_MAX,
>> +};
>> +
>> +enum dw_hdmi_devtype {
>> +	IMX6Q_HDMI,
>> +	IMX6DL_HDMI,
>> +};
> This enum going into dw_hdmi.
> Does this mean that dw hdmi code still has some SoC specific things left?
> Where is this needed.

    yes, imx6q and imx6dl have different configuration in function
    dw_hdmi_clear_overflow, as for rk3288,  function hdmi_phy_configure
    also have different with power control of some block.
>> +
>> +struct mpll_config {
>> +	unsigned long mpixelclock;
>> +	struct {
>> +		u16 cpce;
>> +		u16 gmp;
>> +	} res[RES_MAX];
>> +};
>> +
>> +struct curr_ctrl {
>> +	unsigned long mpixelclock;
>> +	u16 curr[RES_MAX];
>> +};
>> +
>> +struct dw_hdmi_plat_data {
>> +	void * (*setup)(struct platform_device *pdev);
>> +	void (*exit)(void *priv);
>> +	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
>> +	void (*encoder_prepare)(struct drm_connector *connector,
>> +				struct drm_encoder *encoder);
>> +	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
>> +					   struct drm_display_mode *mode);
>> +	const struct mpll_config *mpll_cfg;
>> +	const struct curr_ctrl *cur_ctr;
>> +	enum dw_hdmi_devtype dev_type;
>> +
>> +};
>> +
>> +int dw_hdmi_platform_register(struct platform_device *pdev,
>> +			      const struct dw_hdmi_plat_data *plat_data);
>> +int dw_hdmi_platform_unregister(struct platform_device *pdev);
>> +#endif /* __IMX_HDMI_H__ */
>>
> Regards
> ZubairLK
>
> _______________________________________________
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> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
>
>

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[PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Andy Yan]

On rockchip rk3288, only word(32-bit) accesses are
permitted for hdmi registers.  Byte width accesses (writeb,
readb) generate an imprecise external abort.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

---

Changes in v7: None
Changes in v6:
- move some modification to  patch#6
- refactor register access without reg_shift

Changes in v5:
- refactor reg-io-width

Changes in v4: None
Changes in v3:
- split multi register access to one indepent patch

Changes in v2: None

 drivers/gpu/drm/bridge/dw_hdmi.c | 57 +++++++++++++++++++++++++++++++++++-----
 1 file changed, 51 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index e9f0dfe..978c709 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -101,6 +101,11 @@ struct hdmi_data_info {
 	struct hdmi_vmode video_mode;
 };
 
+union dw_reg_ptr {
+	u32 __iomem *p32;
+	u8 __iomem *p8;
+};
+
 struct dw_hdmi {
 	struct drm_connector connector;
 	struct drm_encoder encoder;
@@ -121,20 +126,43 @@ struct dw_hdmi {
 
 	struct regmap *regmap;
 	struct i2c_adapter *ddc;
-	void __iomem *regs;
+	union dw_reg_ptr regs;
 
 	unsigned int sample_rate;
 	int ratio;
+
+	void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
+	u8 (*read)(struct dw_hdmi *hdmi, int offset);
 };
 
+static void dw_hdmi_writel(struct dw_hdmi *hdmi, u8 val, int offset)
+{
+	writel(val, hdmi->regs.p32 + offset);
+}
+
+static u8 dw_hdmi_readl(struct dw_hdmi *hdmi, int offset)
+{
+	return readl(hdmi->regs.p32 + offset);
+}
+
+static void dw_hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
+{
+	writeb(val, hdmi->regs.p8 + offset);
+}
+
+static u8 dw_hdmi_readb(struct dw_hdmi *hdmi, int offset)
+{
+	return readb(hdmi->regs.p8 + offset);
+}
+
 static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
 {
-	writeb(val, hdmi->regs + offset);
+	hdmi->write(hdmi, val, offset);
 }
 
 static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset)
 {
-	return readb(hdmi->regs + offset);
+	return hdmi->read(hdmi, offset);
 }
 
 static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
@@ -1499,6 +1527,23 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
 	struct device_node *ddc_node;
 	struct resource *iores;
 	int ret, irq;
+	u32 val = 1;
+
+	of_property_read_u32(np, "reg-io-width", &val);
+
+	switch (val) {
+	case 4:
+		hdmi->write = dw_hdmi_writel;
+		hdmi->read = dw_hdmi_readl;
+		break;
+	case 1:
+		hdmi->write = dw_hdmi_writeb;
+		hdmi->read = dw_hdmi_readb;
+		break;
+	default:
+		dev_err(dev, "reg-io-width must be 1 or 4\n");
+		return -EINVAL;
+	}
 
 	ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
 	if (ddc_node) {
@@ -1525,9 +1570,9 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
 		return ret;
 
 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hdmi->regs = devm_ioremap_resource(dev, iores);
-	if (IS_ERR(hdmi->regs))
-		return PTR_ERR(hdmi->regs);
+	hdmi->regs.p32 = devm_ioremap_resource(dev, iores);
+	if (IS_ERR(hdmi->regs.p32))
+		return PTR_ERR(hdmi->regs.p32);
 
 	if (hdmi->plat_data->setup)
 		hdmi->priv = hdmi->plat_data->setup(pdev);
-- 
1.9.1

Re: [PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Zubair Lutfullah Kakakhel]

Hi Andy,

This patch adds the reg-io-width binding.

Hence the binding patch should come before it.


On 11/11/14 12:53, Andy Yan wrote:
> On rockchip rk3288, only word(32-bit) accesses are
> permitted for hdmi registers.  Byte width accesses (writeb,
> readb) generate an imprecise external abort.
> 
> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
> 
> ---
> 
>  }
>  
>  static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
> @@ -1499,6 +1527,23 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
>  	struct device_node *ddc_node;
>  	struct resource *iores;
>  	int ret, irq;
> +	u32 val = 1;
> +
> +	of_property_read_u32(np, "reg-io-width", &val);
> +
> +	switch (val) {
> +	case 4:
> +		hdmi->write = dw_hdmi_writel;
> +		hdmi->read = dw_hdmi_readl;
> +		break;
> +	case 1:
> +		hdmi->write = dw_hdmi_writeb;
> +		hdmi->read = dw_hdmi_readb;
> +		break;
> +	default:
> +		dev_err(dev, "reg-io-width must be 1 or 4\n");
> +		return -EINVAL;
> +	}

The binding patch says this is an optional property.
But here if undefined it returns -EINVAL.

I would keep it optional and default it to byte access.

Regards,
ZubairLK

Re: [PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Lucas Stach]

Am Dienstag, den 11.11.2014, 14:20 +0000 schrieb Zubair Lutfullah
Kakakhel:
> Hi Andy,
> 
> This patch adds the reg-io-width binding.
> 
> Hence the binding patch should come before it.
> 
> 
> On 11/11/14 12:53, Andy Yan wrote:
> > On rockchip rk3288, only word(32-bit) accesses are
> > permitted for hdmi registers.  Byte width accesses (writeb,
> > readb) generate an imprecise external abort.
> > 
> > Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
> > 
> > ---
> > 
> >  }
> >  
> >  static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
> > @@ -1499,6 +1527,23 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
> >  	struct device_node *ddc_node;
> >  	struct resource *iores;
> >  	int ret, irq;
> > +	u32 val = 1;
> > +
> > +	of_property_read_u32(np, "reg-io-width", &val);
> > +
> > +	switch (val) {
> > +	case 4:
> > +		hdmi->write = dw_hdmi_writel;
> > +		hdmi->read = dw_hdmi_readl;
> > +		break;
> > +	case 1:
> > +		hdmi->write = dw_hdmi_writeb;
> > +		hdmi->read = dw_hdmi_readb;
> > +		break;
> > +	default:
> > +		dev_err(dev, "reg-io-width must be 1 or 4\n");
> > +		return -EINVAL;
> > +	}
> 
> The binding patch says this is an optional property.
> But here if undefined it returns -EINVAL.
> 
> I would keep it optional and default it to byte access.

That's exactly what the patch does. val is initialized to 1, which is
not changed if the property could not be found in the DT. The default
case will only be taken if the property is present in DT but has any
other value than 1 or 4, which is an error.

Regards,
Lucas

-- 
Pengutronix e.K.             | Lucas Stach                 |
Industrial Linux Solutions   | http://www.pengutronix.de/  |

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Re: [PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Zubair Lutfullah Kakakhel]

On 11/11/14 14:23, Lucas Stach wrote:
> Am Dienstag, den 11.11.2014, 14:20 +0000 schrieb Zubair Lutfullah
> Kakakhel:
>> Hi Andy,
>>
>> This patch adds the reg-io-width binding.
>>
>> Hence the binding patch should come before it.
>>
>>
>> On 11/11/14 12:53, Andy Yan wrote:
>>> On rockchip rk3288, only word(32-bit) accesses are
>>> permitted for hdmi registers.  Byte width accesses (writeb,
>>> readb) generate an imprecise external abort.
>>>
>>> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
>>>
>>> ---
>>>
>>>  }
>>>  
>>>  static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
>>> @@ -1499,6 +1527,23 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
>>>  	struct device_node *ddc_node;
>>>  	struct resource *iores;
>>>  	int ret, irq;
>>> +	u32 val = 1;
>>> +
>>> +	of_property_read_u32(np, "reg-io-width", &val);
>>> +
>>> +	switch (val) {
>>> +	case 4:
>>> +		hdmi->write = dw_hdmi_writel;
>>> +		hdmi->read = dw_hdmi_readl;
>>> +		break;
>>> +	case 1:
>>> +		hdmi->write = dw_hdmi_writeb;
>>> +		hdmi->read = dw_hdmi_readb;
>>> +		break;
>>> +	default:
>>> +		dev_err(dev, "reg-io-width must be 1 or 4\n");
>>> +		return -EINVAL;
>>> +	}
>>
>> The binding patch says this is an optional property.
>> But here if undefined it returns -EINVAL.
>>
>> I would keep it optional and default it to byte access.
> 
> That's exactly what the patch does. val is initialized to 1, which is
> not changed if the property could not be found in the DT. The default
> case will only be taken if the property is present in DT but has any
> other value than 1 or 4, which is an error.
> 

I missed the initialization. My bad.

Thanks
ZubairLK

Re: [PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Andy Yan]

On 2014年11月11日 22:20, Zubair Lutfullah Kakakhel wrote:
> Hi Andy,
>
> This patch adds the reg-io-width binding.
>
> Hence the binding patch should come before it.
>
    do you mean that I should put dts binding patch
    before this patch?
> On 11/11/14 12:53, Andy Yan wrote:
>> On rockchip rk3288, only word(32-bit) accesses are
>> permitted for hdmi registers.  Byte width accesses (writeb,
>> readb) generate an imprecise external abort.
>>
>> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
>>
>> ---
>>
>>   }
>>   
>>   static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
>> @@ -1499,6 +1527,23 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
>>   	struct device_node *ddc_node;
>>   	struct resource *iores;
>>   	int ret, irq;
>> +	u32 val = 1;
>> +
>> +	of_property_read_u32(np, "reg-io-width", &val);
>> +
>> +	switch (val) {
>> +	case 4:
>> +		hdmi->write = dw_hdmi_writel;
>> +		hdmi->read = dw_hdmi_readl;
>> +		break;
>> +	case 1:
>> +		hdmi->write = dw_hdmi_writeb;
>> +		hdmi->read = dw_hdmi_readb;
>> +		break;
>> +	default:
>> +		dev_err(dev, "reg-io-width must be 1 or 4\n");
>> +		return -EINVAL;
>> +	}
> The binding patch says this is an optional property.
> But here if undefined it returns -EINVAL.
>
> I would keep it optional and default it to byte access.
   if the dts undefined it, the val will be 1.
   if the dts defined other value except 4 and 1, return -EINVAL
>
> Regards,
> ZubairLK
>    
>
> _______________________________________________
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> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
>
>


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Re: [PATCH v7 5/7] drm: bridge/dw-hdmi: add support for multi byte register width access

[Zubair Lutfullah Kakakhel]

On 11/11/14 14:46, Andy Yan wrote:
> 
> On 2014年11月11日 22:20, Zubair Lutfullah Kakakhel wrote:
>> Hi Andy,
>>
>> This patch adds the reg-io-width binding.
>>
>> Hence the binding patch should come before it.
>>
>    do you mean that I should put dts binding patch
>    before this patch?

Yes. The patch adding the binding to the Documentation folder comes
before the driver implementing the binding.

ZubairLK

>> On 11/11/14 12:53, Andy Yan wrote:
>>> On rockchip rk3288, only word(32-bit) accesses are
>>> permitted for hdmi registers.  Byte width accesses (writeb,
>>> readb) generate an imprecise external abort.
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[PATCH v7 6/7] drm: bridge/dw-hdmi: convert dw-hdmi to drm_bridge mode

[Andy Yan]

From: Yakir Yang <ykk@rock-chips.com>

keep the connector & birdge in dw_hdmi.c, handle encoder in dw_hdmi-imx.c

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>

---

Changes in v7: None
Changes in v6:
- move some modification from patch#5

Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/gpu/drm/bridge/dw_hdmi.c      | 228 +++++++++++++++-------------------
 drivers/staging/imx-drm/dw_hdmi-imx.c | 145 ++++++++++++++-------
 include/drm/bridge/dw_hdmi.h          |  13 +-
 3 files changed, 199 insertions(+), 187 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 978c709..ed75147 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -11,7 +11,6 @@
  * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
  */
 
-#include <linux/component.h>
 #include <linux/irq.h>
 #include <linux/delay.h>
 #include <linux/err.h>
@@ -108,7 +107,8 @@ union dw_reg_ptr {
 
 struct dw_hdmi {
 	struct drm_connector connector;
-	struct drm_encoder encoder;
+	struct drm_encoder *encoder;
+	struct drm_bridge *bridge;
 
 	enum dw_hdmi_devtype dev_type;
 	struct device *dev;
@@ -1319,6 +1319,50 @@ static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
 	dw_hdmi_phy_disable(hdmi);
 }
 
+static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
+				    struct drm_display_mode *mode,
+				    struct drm_display_mode *adjusted_mode)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	dw_hdmi_setup(hdmi, mode);
+
+	/* Store the display mode for plugin/DKMS poweron events */
+	memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
+}
+
+static bool dw_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
+				      const struct drm_display_mode *mode,
+				      struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void dw_hdmi_bridge_disable(struct drm_bridge *bridge)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	dw_hdmi_poweroff(hdmi);
+}
+
+static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	dw_hdmi_poweron(hdmi);
+}
+
+static void dw_hdmi_bridge_destroy(struct drm_bridge *bridge)
+{
+	drm_bridge_cleanup(bridge);
+	kfree(bridge);
+}
+
+static void dw_hdmi_bridge_nope(struct drm_bridge *bridge)
+{
+	/* do nothing */
+}
+
 static enum drm_connector_status dw_hdmi_connector_detect(struct drm_connector
 							*connector, bool force)
 {
@@ -1360,60 +1404,7 @@ static struct drm_encoder *dw_hdmi_connector_best_encoder(struct drm_connector
 	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
 
-	return &hdmi->encoder;
-}
-
-static void dw_hdmi_encoder_mode_set(struct drm_encoder *encoder,
-			struct drm_display_mode *mode,
-			struct drm_display_mode *adjusted_mode)
-{
-	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
-
-	dw_hdmi_setup(hdmi, mode);
-
-	/* Store the display mode for plugin/DKMS poweron events */
-	memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
-}
-
-static bool dw_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
-			const struct drm_display_mode *mode,
-			struct drm_display_mode *adjusted_mode)
-{
-	return true;
-}
-
-static void dw_hdmi_encoder_disable(struct drm_encoder *encoder)
-{
-}
-
-static void dw_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
-	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
-
-	if (mode)
-		dw_hdmi_poweroff(hdmi);
-	else
-		dw_hdmi_poweron(hdmi);
-}
-
-static void dw_hdmi_encoder_prepare(struct drm_encoder *encoder)
-{
-	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
-
-	dw_hdmi_poweroff(hdmi);
-
-	if (hdmi->plat_data->encoder_prepare)
-		hdmi->plat_data->encoder_prepare(&hdmi->connector, encoder);
-}
-
-static void dw_hdmi_encoder_commit(struct drm_encoder *encoder)
-{
-	struct dw_hdmi *hdmi = container_of(encoder, struct dw_hdmi, encoder);
-
-	if (hdmi->plat_data->encoder_commit)
-		hdmi->plat_data->encoder_commit(hdmi->priv, encoder);
-
-	dw_hdmi_poweron(hdmi);
+	return hdmi->encoder;
 }
 
 void dw_hdmi_connector_destroy(struct drm_connector *connector)
@@ -1422,19 +1413,6 @@ void dw_hdmi_connector_destroy(struct drm_connector *connector)
 	drm_connector_cleanup(connector);
 }
 
-static struct drm_encoder_funcs dw_hdmi_encoder_funcs = {
-	.destroy = drm_encoder_cleanup,
-};
-
-static struct drm_encoder_helper_funcs dw_hdmi_encoder_helper_funcs = {
-	.dpms = dw_hdmi_encoder_dpms,
-	.prepare = dw_hdmi_encoder_prepare,
-	.commit = dw_hdmi_encoder_commit,
-	.mode_set = dw_hdmi_encoder_mode_set,
-	.mode_fixup = dw_hdmi_encoder_mode_fixup,
-	.disable = dw_hdmi_encoder_disable,
-};
-
 static struct drm_connector_funcs dw_hdmi_connector_funcs = {
 	.dpms = drm_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
@@ -1447,6 +1425,16 @@ static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
 	.best_encoder = dw_hdmi_connector_best_encoder,
 };
 
+struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
+	.enable = dw_hdmi_bridge_enable,
+	.disable = dw_hdmi_bridge_disable,
+	.pre_enable = dw_hdmi_bridge_nope,
+	.post_disable = dw_hdmi_bridge_nope,
+	.mode_set = dw_hdmi_bridge_mode_set,
+	.mode_fixup = dw_hdmi_bridge_mode_fixup,
+	.destroy = dw_hdmi_bridge_destroy,
+};
+
 static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
 {
 	struct dw_hdmi *hdmi = dev_id;
@@ -1495,40 +1483,64 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 
 static int dw_hdmi_register(struct drm_device *drm, struct dw_hdmi *hdmi)
 {
-	struct drm_encoder *encoder = &hdmi->encoder;
-	struct device *dev = hdmi->dev;
+	struct drm_encoder *encoder = hdmi->encoder;
+	struct drm_bridge *bridge;
+	int ret;
 
-	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+	bridge = devm_kzalloc(drm->dev, sizeof(*bridge), GFP_KERNEL);
+	if (!bridge) {
+		DRM_ERROR("Failed to allocate drm bridge\n");
+		return -ENOMEM;
+	}
 
-	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
+	hdmi->bridge = bridge;
+	bridge->driver_private = hdmi;
 
-	drm_encoder_helper_add(&hdmi->encoder, &dw_hdmi_encoder_helper_funcs);
-	drm_encoder_init(drm, &hdmi->encoder, &dw_hdmi_encoder_funcs,
-			 DRM_MODE_ENCODER_TMDS);
+	ret = drm_bridge_init(drm, bridge, &dw_hdmi_bridge_funcs);
+	if (ret) {
+		DRM_ERROR("Failed to initialize bridge with drm\n");
+		return -EINVAL;
+	}
+
+	encoder->bridge = bridge;
+	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
 
 	drm_connector_helper_add(&hdmi->connector,
 				 &dw_hdmi_connector_helper_funcs);
 	drm_connector_init(drm, &hdmi->connector, &dw_hdmi_connector_funcs,
 			   DRM_MODE_CONNECTOR_HDMIA);
 
-	hdmi->connector.encoder = &hdmi->encoder;
+	hdmi->connector.encoder = encoder;
 
-	drm_mode_connector_attach_encoder(&hdmi->connector, &hdmi->encoder);
+	drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
 
 	return 0;
 }
 
-static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
+int dw_hdmi_bind(struct device *dev, struct device *master,
+		 void *data, struct drm_encoder *encoder,
+		 const struct dw_hdmi_plat_data *plat_data)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct dw_hdmi *hdmi = platform_get_drvdata(pdev);
 	struct drm_device *drm = data;
 	struct device_node *np = dev->of_node;
 	struct device_node *ddc_node;
 	struct resource *iores;
+	struct dw_hdmi *hdmi;
 	int ret, irq;
 	u32 val = 1;
 
+	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return -ENOMEM;
+
+	hdmi->plat_data = plat_data;
+	hdmi->dev = &pdev->dev;
+	hdmi->dev_type = plat_data->dev_type;
+	hdmi->sample_rate = 48000;
+	hdmi->ratio = 100;
+	hdmi->encoder = encoder;
+
 	of_property_read_u32(np, "reg-io-width", &val);
 
 	switch (val) {
@@ -1574,8 +1586,6 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
 	if (IS_ERR(hdmi->regs.p32))
 		return PTR_ERR(hdmi->regs.p32);
 
-	if (hdmi->plat_data->setup)
-		hdmi->priv = hdmi->plat_data->setup(pdev);
 	/* Product and revision IDs */
 	dev_info(dev,
 		 "Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
@@ -1616,9 +1626,9 @@ static int dw_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(dw_hdmi_bind);
 
-static void dw_hdmi_unbind(struct device *dev, struct device *master,
-	void *data)
+void dw_hdmi_unbind(struct device *dev, struct device *master, void *data)
 {
 	struct dw_hdmi *hdmi = dev_get_drvdata(dev);
 
@@ -1626,57 +1636,15 @@ static void dw_hdmi_unbind(struct device *dev, struct device *master,
 	hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
 
 	hdmi->connector.funcs->destroy(&hdmi->connector);
-	hdmi->encoder.funcs->destroy(&hdmi->encoder);
-	if (hdmi->plat_data->exit)
-		hdmi->plat_data->exit(hdmi->priv);
-	i2c_put_adapter(hdmi->ddc);
-}
-
-static const struct component_ops hdmi_ops = {
-	.bind	= dw_hdmi_bind,
-	.unbind	= dw_hdmi_unbind,
-};
-
-static int dw_hdmi_platform_probe(struct platform_device *pdev)
-{
-	return component_add(&pdev->dev, &hdmi_ops);
-}
-
-static int dw_hdmi_platform_remove(struct platform_device *pdev)
-{
-	component_del(&pdev->dev, &hdmi_ops);
-	return 0;
-}
-
-int dw_hdmi_platform_register(struct platform_device *pdev,
-			      const struct dw_hdmi_plat_data *plat_data)
-{
-	struct dw_hdmi *hdmi;
-
-	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
-	if (!hdmi)
-		return -ENOMEM;
-
-	hdmi->plat_data = plat_data;
-	hdmi->dev = &pdev->dev;
-	hdmi->dev_type = plat_data->dev_type;
-	hdmi->sample_rate = 48000;
-	hdmi->ratio = 100;
+	hdmi->encoder->funcs->destroy(hdmi->encoder);
 
-	platform_set_drvdata(pdev, hdmi);
-
-	return dw_hdmi_platform_probe(pdev);
-}
-EXPORT_SYMBOL_GPL(dw_hdmi_platform_register);
-
-int dw_hdmi_platform_unregister(struct platform_device *pdev)
-{
-	return dw_hdmi_platform_remove(pdev);
+	i2c_put_adapter(hdmi->ddc);
 }
-EXPORT_SYMBOL_GPL(dw_hdmi_platform_unregister);
+EXPORT_SYMBOL_GPL(dw_hdmi_unbind);
 
 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
 MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
+MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
 MODULE_DESCRIPTION("DW HDMI transmitter driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:dw-hdmi");
diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
index 4b48ea6..ad71c8e 100644
--- a/drivers/staging/imx-drm/dw_hdmi-imx.c
+++ b/drivers/staging/imx-drm/dw_hdmi-imx.c
@@ -8,12 +8,19 @@
  */
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/component.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <drm/bridge/dw_hdmi.h>
 #include <video/imx-ipu-v3.h>
 #include <linux/regmap.h>
 #include <linux/clk.h>
+#include <drm/drm_of.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_encoder_slave.h>
+#include <drm/bridge/dw_hdmi.h>
 
 #include "imx-drm.h"
 
@@ -22,6 +29,7 @@ struct imx_hdmi {
 	struct clk *isfr_clk;
 	struct clk *iahb_clk;
 	struct regmap *regmap;
+	struct drm_encoder encoder;
 };
 
 static const struct mpll_config imx_mpll_cfg[] = {
@@ -69,7 +77,7 @@ static const struct curr_ctrl imx_cur_ctr[] = {
 	}
 };
 
-static int dw_hdmi_parse_dt(struct imx_hdmi *hdmi)
+static int dw_hdmi_imx_parse_dt(struct imx_hdmi *hdmi)
 {
 	struct device_node *np = hdmi->dev->of_node;
 
@@ -94,48 +102,26 @@ static int dw_hdmi_parse_dt(struct imx_hdmi *hdmi)
 	return 0;
 }
 
-static void *dw_hdmi_imx_setup(struct platform_device *pdev)
+static void dw_hdmi_imx_disable(struct drm_encoder *encoder)
 {
-	struct imx_hdmi *hdmi;
-	int ret;
-
-	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
-	if (!hdmi)
-		return ERR_PTR(-ENOMEM);
-	hdmi->dev = &pdev->dev;
-
-	ret = dw_hdmi_parse_dt(hdmi);
-	if (ret < 0)
-		return ERR_PTR(ret);
-	ret = clk_prepare_enable(hdmi->isfr_clk);
-	if (ret) {
-		dev_err(hdmi->dev,
-			"Cannot enable HDMI isfr clock: %d\n", ret);
-		return ERR_PTR(ret);
-	}
-
-	ret = clk_prepare_enable(hdmi->iahb_clk);
-	if (ret) {
-		dev_err(hdmi->dev,
-			"Cannot enable HDMI iahb clock: %d\n", ret);
-		return ERR_PTR(ret);
-	}
-
-	return hdmi;
 }
 
-static void dw_hdmi_imx_exit(void *priv)
+static bool dw_hdmi_imx_mode_fixup(struct drm_encoder *encoder,
+				   const struct drm_display_mode *mode,
+				   struct drm_display_mode *adjusted_mode)
 {
-	struct imx_hdmi *hdmi = (struct imx_hdmi *)priv;
-
-	clk_disable_unprepare(hdmi->isfr_clk);
+	return true;
+}
 
-	clk_disable_unprepare(hdmi->iahb_clk);
+static void dw_hdmi_imx_mode_set(struct drm_encoder *encoder,
+				 struct drm_display_mode *mode,
+				 struct drm_display_mode *adjusted_mode)
+{
 }
 
-static void dw_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
+static void dw_hdmi_imx_commit(struct drm_encoder *encoder)
 {
-	struct imx_hdmi *hdmi = (struct imx_hdmi *)priv;
+	struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
 	int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
 
 	regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
@@ -143,27 +129,30 @@ static void dw_hdmi_imx_encoder_commit(void *priv, struct drm_encoder *encoder)
 			   mux << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
 }
 
-static void dw_hdmi_imx_encoder_prepare(struct drm_connector *connector,
-					struct drm_encoder *encoder)
+static void dw_hdmi_imx_prepare(struct drm_encoder *encoder)
 {
 	imx_drm_panel_format(encoder, V4L2_PIX_FMT_RGB24);
 }
 
+static struct drm_encoder_helper_funcs imx_hdmi_encoder_helper_funcs = {
+	.mode_fixup = dw_hdmi_imx_mode_fixup,
+	.mode_set = dw_hdmi_imx_mode_set,
+	.prepare = dw_hdmi_imx_prepare,
+	.commit = dw_hdmi_imx_commit,
+	.disable = dw_hdmi_imx_disable,
+};
+
+static struct drm_encoder_funcs imx_hdmi_encoder_funcs = {
+	.destroy = drm_encoder_cleanup,
+};
+
 static struct dw_hdmi_plat_data imx6q_hdmi_drv_data = {
-	.setup			= dw_hdmi_imx_setup,
-	.exit			= dw_hdmi_imx_exit,
-	.encoder_commit		= dw_hdmi_imx_encoder_commit,
-	.encoder_prepare	= dw_hdmi_imx_encoder_prepare,
 	.mpll_cfg		= imx_mpll_cfg,
 	.cur_ctr		= imx_cur_ctr,
 	.dev_type		= IMX6Q_HDMI,
 };
 
 static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
-	.setup			= dw_hdmi_imx_setup,
-	.exit			= dw_hdmi_imx_exit,
-	.encoder_commit		= dw_hdmi_imx_encoder_commit,
-	.encoder_prepare	= dw_hdmi_imx_encoder_prepare,
 	.mpll_cfg		= imx_mpll_cfg,
 	.cur_ctr		= imx_cur_ctr,
 	.dev_type		= IMX6DL_HDMI,
@@ -180,23 +169,82 @@ static const struct of_device_id dw_hdmi_imx_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
 
-static int dw_hdmi_imx_probe(struct platform_device *pdev)
+static int dw_hdmi_imx_bind(struct device *dev, struct device *master,
+			    void *data)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	const struct dw_hdmi_plat_data *plat_data;
 	const struct of_device_id *match;
+	struct drm_device *drm = data;
+	struct drm_encoder *encoder;
+	struct imx_hdmi *hdmi;
+	int ret;
 
 	if (!pdev->dev.of_node)
 		return -ENODEV;
 
+	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return -ENOMEM;
+
 	match = of_match_node(dw_hdmi_imx_ids, pdev->dev.of_node);
 	plat_data = match->data;
+	hdmi->dev = &pdev->dev;
+	encoder = &hdmi->encoder;
+	platform_set_drvdata(pdev, hdmi);
+
+	ret = dw_hdmi_imx_parse_dt(hdmi);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_prepare_enable(hdmi->isfr_clk);
+	if (ret) {
+		dev_err(dev, "Cannot enable HDMI isfr clock: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(hdmi->iahb_clk);
+	if (ret) {
+		dev_err(dev, "Cannot enable HDMI iahb clock: %d\n", ret);
+		return ret;
+	}
+
+	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+
+	drm_encoder_helper_add(encoder, &imx_hdmi_encoder_helper_funcs);
+	drm_encoder_init(drm, encoder, &imx_hdmi_encoder_funcs,
+			 DRM_MODE_ENCODER_TMDS);
 
-	return dw_hdmi_platform_register(pdev, plat_data);
+	return dw_hdmi_bind(dev, master, data, encoder, plat_data);
+}
+
+static void dw_hdmi_imx_unbind(struct device *dev, struct device *master,
+			       void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct imx_hdmi *hdmi = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(hdmi->isfr_clk);
+	clk_disable_unprepare(hdmi->iahb_clk);
+
+	return dw_hdmi_unbind(dev, master, data);
+}
+
+static const struct component_ops dw_hdmi_imx_ops = {
+	.bind	= dw_hdmi_imx_bind,
+	.unbind	= dw_hdmi_imx_unbind,
+};
+
+static int dw_hdmi_imx_probe(struct platform_device *pdev)
+{
+	return component_add(&pdev->dev, &dw_hdmi_imx_ops);
 }
 
 static int dw_hdmi_imx_remove(struct platform_device *pdev)
 {
-	return dw_hdmi_platform_unregister(pdev);
+	component_del(&pdev->dev, &dw_hdmi_imx_ops);
+
+	return 0;
 }
 
 static struct platform_driver dw_hdmi_imx_platform_driver = {
@@ -212,6 +260,7 @@ static struct platform_driver dw_hdmi_imx_platform_driver = {
 module_platform_driver(dw_hdmi_imx_platform_driver);
 
 MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
+MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
 MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:dwhdmi-imx");
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 6683b63..e26e61f 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -38,20 +38,15 @@ struct curr_ctrl {
 };
 
 struct dw_hdmi_plat_data {
-	void * (*setup)(struct platform_device *pdev);
-	void (*exit)(void *priv);
-	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
-	void (*encoder_prepare)(struct drm_connector *connector,
-				struct drm_encoder *encoder);
 	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
 					   struct drm_display_mode *mode);
 	const struct mpll_config *mpll_cfg;
 	const struct curr_ctrl *cur_ctr;
 	enum dw_hdmi_devtype dev_type;
-
 };
 
-int dw_hdmi_platform_register(struct platform_device *pdev,
-			      const struct dw_hdmi_plat_data *plat_data);
-int dw_hdmi_platform_unregister(struct platform_device *pdev);
+void dw_hdmi_unbind(struct device *dev, struct device *master, void *data);
+int dw_hdmi_bind(struct device *dev, struct device *master,
+		 void *data, struct drm_encoder *encoder,
+		 const struct dw_hdmi_plat_data *plat_data);
 #endif /* __IMX_HDMI_H__ */
-- 
1.9.1

Re: [PATCH v7 6/7] drm: bridge/dw-hdmi: convert dw-hdmi to drm_bridge mode

[Zubair Lutfullah Kakakhel]

Hi Andy,

On 11/11/14 12:54, Andy Yan wrote:
> From: Yakir Yang <ykk@rock-chips.com>
> 
> keep the connector & birdge in dw_hdmi.c, handle encoder in dw_hdmi-imx.c

Is there a reason for this separation? Keeping encoder in platform files?
If yes, then the commit message should explain that.

> 
> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
> 
> ---
> 
> Changes in v7: None
> Changes in v6:
> - move some modification from patch#5
> 
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  drivers/gpu/drm/bridge/dw_hdmi.c      | 228 +++++++++++++++-------------------
>  drivers/staging/imx-drm/dw_hdmi-imx.c | 145 ++++++++++++++-------
>  include/drm/bridge/dw_hdmi.h          |  13 +-
>  3 files changed, 199 insertions(+), 187 deletions(-)


Regards
ZubairLK

Re: [PATCH v7 6/7] drm: bridge/dw-hdmi: convert dw-hdmi to drm_bridge mode

[Andy Yan]

Hi ZubairLK:
On 2014年11月11日 22:36, Zubair Lutfullah Kakakhel wrote:
> Hi Andy,
>
> On 11/11/14 12:54, Andy Yan wrote:
>> From: Yakir Yang <ykk@rock-chips.com>
>>
>> keep the connector & birdge in dw_hdmi.c, handle encoder in dw_hdmi-imx.c
> Is there a reason for this separation? Keeping encoder in platform files?
> If yes, then the commit message should explain that.
    in the encoder, most operation are platform specific, such as
   mux to select which crtc is used,  set panel format etc, these operation
   complete by platform specific interface
>> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
>> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
>>
>> ---
>>
>> Changes in v7: None
>> Changes in v6:
>> - move some modification from patch#5
>>
>> Changes in v5: None
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   drivers/gpu/drm/bridge/dw_hdmi.c      | 228 +++++++++++++++-------------------
>>   drivers/staging/imx-drm/dw_hdmi-imx.c | 145 ++++++++++++++-------
>>   include/drm/bridge/dw_hdmi.h          |  13 +-
>>   3 files changed, 199 insertions(+), 187 deletions(-)
>
> Regards
> ZubairLK
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
>
>


_______________________________________________
devel mailing list
devel@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

[PATCH v7 7/7] dt-bindings: add document for dw-hdmi

[Andy Yan]

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
---

Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 .../devicetree/bindings/drm/bridge/dw-hdmi.txt     | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt

diff --git a/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
new file mode 100644
index 0000000..aa7ed17
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
@@ -0,0 +1,38 @@
+DesignWare HDMI bridge bindings
+
+Required properities:
+- compatibel: platform specific such as "fsl,imx6q-hdmi","fsl,imx6dl-hdmi"
+	      "rockchip,rk3288-dw-hdmi"
+- reg: physical base address of the controller and length
+- ddc-i2c-bus: the ddc i2c bus
+- interrupts: The interrupt number to the cpu
+
+Optional properties
+- reg-io-width: the width of the reg:1,4, default set to 1 if not present
+
+Example:
+	hdmi: hdmi@0120000 {
+		compatible = "fsl,imx6q-hdmi";
+		reg = <0x00120000 0x9000>;
+		interrupts = <0 115 0x04>;
+		gpr = <&gpr>;
+		clocks = <&clks 123>, <&clks 124>;
+		clock-names = "iahb", "isfr";
+		ddc-i2c-bus = <&i2c2>;
+
+		port@0 {
+			reg = <0>;
+
+			hdmi_mux_0: endpoint {
+				remote-endpoint = <&ipu1_di0_hdmi>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+
+			hdmi_mux_1: endpoint {
+				remote-endpoint = <&ipu1_di1_hdmi>;
+			};
+		};
+	};
-- 
1.9.1

Re: [PATCH v7 7/7] dt-bindings: add document for dw-hdmi

[Zubair Lutfullah Kakakhel]

Hi Andy,

Some minor comments inline.

On 11/11/14 12:54, Andy Yan wrote:
> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
> ---
> 
> Changes in v7: None
> Changes in v6: None
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  .../devicetree/bindings/drm/bridge/dw-hdmi.txt     | 38 ++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
> 
> diff --git a/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
> new file mode 100644
> index 0000000..aa7ed17
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
> @@ -0,0 +1,38 @@
> +DesignWare HDMI bridge bindings
> +
> +Required properities:
	
	    ^properties

> +- compatibel: platform specific such as "fsl,imx6q-hdmi","fsl,imx6dl-hdmi"

     ^compatible

> +	      "rockchip,rk3288-dw-hdmi"

This will need to come in a separate series which adds rk3288 hdmi support..

> +- reg: physical base address of the controller and length
> +- ddc-i2c-bus: the ddc i2c bus
> +- interrupts: The interrupt number to the cpu
> +
> +Optional properties
> +- reg-io-width: the width of the reg:1,4, default set to 1 if not present
> +
> +Example:
> +	hdmi: hdmi@0120000 {
> +		compatible = "fsl,imx6q-hdmi";
> +		reg = <0x00120000 0x9000>;
> +		interrupts = <0 115 0x04>;
> +		gpr = <&gpr>;
> +		clocks = <&clks 123>, <&clks 124>;
> +		clock-names = "iahb", "isfr";
> +		ddc-i2c-bus = <&i2c2>;
> +
> +		port@0 {
> +			reg = <0>;
> +
> +			hdmi_mux_0: endpoint {
> +				remote-endpoint = <&ipu1_di0_hdmi>;
> +			};
> +		};
> +
> +		port@1 {
> +			reg = <1>;
> +
> +			hdmi_mux_1: endpoint {
> +				remote-endpoint = <&ipu1_di1_hdmi>;
> +			};
> +		};
> +	};
> 

Thanks
ZubairLK

Re: [PATCH v7 7/7] dt-bindings: add document for dw-hdmi

[Andy Yan]

On 2014年11月11日 22:40, Zubair Lutfullah Kakakhel wrote:
> Hi Andy,
>
> Some minor comments inline.
>
> On 11/11/14 12:54, Andy Yan wrote:
>> Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
>> ---
>>
>> Changes in v7: None
>> Changes in v6: None
>> Changes in v5: None
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   .../devicetree/bindings/drm/bridge/dw-hdmi.txt     | 38 ++++++++++++++++++++++
>>   1 file changed, 38 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>>
>> diff --git a/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>> new file mode 100644
>> index 0000000..aa7ed17
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/drm/bridge/dw-hdmi.txt
>> @@ -0,0 +1,38 @@
>> +DesignWare HDMI bridge bindings
>> +
>> +Required properities:
> 	
> 	    ^properties
>
>> +- compatibel: platform specific such as "fsl,imx6q-hdmi","fsl,imx6dl-hdmi"
>       ^compatible
   thanks , these will be fixed next.
>> +	      "rockchip,rk3288-dw-hdmi"
> This will need to come in a separate series which adds rk3288 hdmi support..
  we will add rk3288 hdmi platform code soon
>
>> +- reg: physical base address of the controller and length
>> +- ddc-i2c-bus: the ddc i2c bus
>> +- interrupts: The interrupt number to the cpu
>> +
>> +Optional properties
>> +- reg-io-width: the width of the reg:1,4, default set to 1 if not present
>> +
>> +Example:
>> +	hdmi: hdmi@0120000 {
>> +		compatible = "fsl,imx6q-hdmi";
>> +		reg = <0x00120000 0x9000>;
>> +		interrupts = <0 115 0x04>;
>> +		gpr = <&gpr>;
>> +		clocks = <&clks 123>, <&clks 124>;
>> +		clock-names = "iahb", "isfr";
>> +		ddc-i2c-bus = <&i2c2>;
>> +
>> +		port@0 {
>> +			reg = <0>;
>> +
>> +			hdmi_mux_0: endpoint {
>> +				remote-endpoint = <&ipu1_di0_hdmi>;
>> +			};
>> +		};
>> +
>> +		port@1 {
>> +			reg = <1>;
>> +
>> +			hdmi_mux_1: endpoint {
>> +				remote-endpoint = <&ipu1_di1_hdmi>;
>> +			};
>> +		};
>> +	};
>>
> Thanks
> ZubairLK
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
>
>


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