VENDOR: rockchip: ARM: dts: rockchip: support the bcmdhd wlan for kylin board

This patch makes the dts to match the new bcmdhd
wifi/bt driver DHD_Driver_1.363.59.144.

Bug: 27307957
Patchset: Add the compatible with dts for bcmdhd driver.

Change-Id: I82d621cb35154d475bf046ca2f99bb71cd62ff1e
Signed-off-by: Caesar Wang <wxt@rock-chips.com>

Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt

@@ -0,0 +1,50 @@
+Rockchip specific extensions to the Innosilicon HDMI
+================================
+
+Required properties:
+- compatible:
+	"rockchip,rk3036-inno-hdmi";
+- reg:
+	Physical base address and length of the controller's registers.
+- clocks, clock-names:
+	Phandle to hdmi controller clock, name should be "pclk"
+- interrupts:
+	HDMI interrupt number
+- ports:
+	Contain one port node with endpoint definitions as defined in
+	Documentation/devicetree/bindings/graph.txt.
+- pinctrl-0, pinctrl-name:
+	Switch the iomux of HPD/CEC pins to HDMI function.
+
+Example:
+hdmi: hdmi@20034000 {
+	compatible = "rockchip,rk3036-inno-hdmi";
+	reg = <0x20034000 0x4000>;
+	interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&cru  PCLK_HDMI>;
+	clock-names = "pclk";
+	pinctrl-names = "default";
+	pinctrl-0 = <&hdmi_ctl>;
+	status = "disabled";
+
+	hdmi_in: port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		hdmi_in_lcdc: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&lcdc_out_hdmi>;
+		};
+	};
+};
+
+&pinctrl {
+	hdmi {
+		hdmi_ctl: hdmi-ctl {
+			rockchip,pins = <1 8  RK_FUNC_1 &pcfg_pull_none>,
+					<1 9  RK_FUNC_1 &pcfg_pull_none>,
+					<1 10 RK_FUNC_1 &pcfg_pull_none>,
+					<1 11 RK_FUNC_1 &pcfg_pull_none>;
+		};
+	};
+
+};

arch/arm/boot/dts/rk3036-evb.dts

@@ -47,6 +47,17 @@
 	compatible = "rockchip,rk3036-evb", "rockchip,rk3036";
 };
 
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&rmii_rst>;
+	phy = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
 &i2c1 {
 	status = "okay";
 
@@ -62,3 +73,15 @@
 &uart2 {
 	status = "okay";
 };
+
+&pinctrl {
+	pcfg_output_high: pcfg-output-high {
+		output-high;
+	};
+
+	emac {
+		rmii_rst: rmii-rst {
+			rockchip,pins = <2 22 RK_FUNC_GPIO &pcfg_output_high>;
+		};
+	};
+};

arch/arm/boot/dts/rk3036-kylin.dts

@@ -46,6 +46,12 @@
 	model = "Rockchip RK3036 KylinBoard";
 	compatible = "rockchip,rk3036-kylin", "rockchip,rk3036";
 
+	bcmdhd_wlan_0: bcmdhd_wlan@0 {
+		compatible = "android,bcmdhd_wlan";
+		gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+		wlreg_on-supply = <&sdio_pwrseq>;
+	};
+
 	leds: gpio-leds {
 		compatible = "gpio-leds";
 
@@ -112,6 +118,17 @@
 	status = "okay";
 };
 
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&rmii_rst>;
+	phy = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
 &emmc {
 	status = "okay";
 };
@@ -384,6 +401,16 @@
 };
 
 &pinctrl {
+	pcfg_output_high: pcfg-output-high {
+		output-high;
+	};
+
+	emac {
+		rmii_rst: rmii-rst {
+			rockchip,pins = <2 22 RK_FUNC_GPIO &pcfg_output_high>;
+		};
+	};
+
 	leds {
 		led_ctl: led-ctl {
 			rockchip,pins = <2 30 RK_FUNC_GPIO &pcfg_pull_none>;

arch/arm/boot/dts/rk3036.dtsi

@@ -223,6 +223,27 @@
 		status = "disabled";
 	};
 
+	emac: ethernet@10200000 {
+		compatible = "rockchip,rk3036-emac", "snps,arc-emac";
+		reg = <0x10200000 0x4000>;
+		interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		rockchip,grf = <&grf>;
+		clocks = <&cru HCLK_MAC>, <&cru SCLK_MACREF>, <&cru SCLK_MAC>;
+		clock-names = "hclk", "macref", "macclk";
+		/*
+		 * Fix the emac parent clock is DPLL instead of APLL.
+		 * since that will cause some unstable things if the cpufreq
+		 * is working. (e.g: the accurate 50MHz what mac_ref need)
+		 */
+		assigned-clocks = <&cru SCLK_MACPLL>;
+		assigned-clock-parents = <&cru PLL_DPLL>;
+		max-speed = <100>;
+		phy-mode = "rmii";
+		status = "disabled";
+	};
+
 	sdmmc: dwmmc@10214000 {
 		compatible = "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc";
 		reg = <0x10214000 0x4000>;
@@ -629,6 +650,24 @@
 			};
 		};
 
+		emac {
+			emac_xfer: emac-xfer {
+				rockchip,pins = <2 10 RK_FUNC_1 &pcfg_pull_default>, /* crs_dvalid */
+						<2 13 RK_FUNC_1 &pcfg_pull_default>, /* tx_en */
+						<2 14 RK_FUNC_1 &pcfg_pull_default>, /* mac_clk */
+						<2 15 RK_FUNC_1 &pcfg_pull_default>, /* rx_err */
+						<2 16 RK_FUNC_1 &pcfg_pull_default>, /* rxd1 */
+						<2 17 RK_FUNC_1 &pcfg_pull_default>, /* rxd0 */
+						<2 18 RK_FUNC_1 &pcfg_pull_default>, /* txd1 */
+						<2 19 RK_FUNC_1 &pcfg_pull_default>; /* txd0 */
+			};
+
+			emac_mdio: emac-mdio {
+				rockchip,pins = <2 12 RK_FUNC_1 &pcfg_pull_default>, /* mac_md */
+						<2 25 RK_FUNC_1 &pcfg_pull_default>; /* mac_mdclk */
+			};
+		};
+
 		i2c0 {
 			i2c0_xfer: i2c0-xfer {
 				rockchip,pins = <0 0 RK_FUNC_1 &pcfg_pull_none>,

drivers/gpu/drm/rockchip/Kconfig

@@ -25,3 +25,11 @@ config ROCKCHIP_DW_HDMI
 	  for the Synopsys DesignWare HDMI driver. If you want to
 	  enable HDMI on RK3288 based SoC, you should selet this
 	  option.
+
+config ROCKCHIP_INNO_HDMI
+	tristate "Rockchip specific extensions for Innosilicon HDMI"
+	depends on DRM_ROCKCHIP
+	help
+	  This selects support for Rockchip SoC specific extensions
+	  for the Innosilicon HDMI driver. If you want to enable
+	  HDMI on RK3036 based SoC, you should select this option.

drivers/gpu/drm/rockchip/Makefile

@@ -2,10 +2,11 @@
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
-rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \
-		rockchip_drm_gem.o
+rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \
+		rockchip_drm_gem.o rockchip_drm_vop.o
+rockchipdrm-$(CONFIG_DRM_FBDEV_EMULATION) += rockchip_drm_fbdev.o
 
 obj-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
+obj-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o
 
-obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o rockchip_drm_vop.o \
-				rockchip_vop_reg.o
+obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o rockchip_vop_reg.o

drivers/gpu/drm/rockchip/inno_hdmi.c

@@ -0,0 +1,938 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ *    Zheng Yang <zhengyang@rock-chips.com>
+ *    Yakir Yang <ykk@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/hdmi.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_device.h>
+
+#include <drm/drm_of.h>
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_vop.h"
+
+#include "inno_hdmi.h"
+
+#define to_inno_hdmi(x)	container_of(x, struct inno_hdmi, x)
+
+struct hdmi_data_info {
+	int vic;
+	bool sink_is_hdmi;
+	bool sink_has_audio;
+	unsigned int enc_in_format;
+	unsigned int enc_out_format;
+	unsigned int colorimetry;
+};
+
+struct inno_hdmi_i2c {
+	struct i2c_adapter adap;
+
+	u8 ddc_addr;
+	u8 segment_addr;
+
+	struct mutex lock;
+	struct completion cmp;
+};
+
+struct inno_hdmi {
+	struct device *dev;
+	struct drm_device *drm_dev;
+
+	int irq;
+	struct clk *pclk;
+	void __iomem *regs;
+
+	struct drm_connector	connector;
+	struct drm_encoder	encoder;
+
+	struct inno_hdmi_i2c *i2c;
+	struct i2c_adapter *ddc;
+
+	unsigned int tmds_rate;
+
+	struct hdmi_data_info	hdmi_data;
+	struct drm_display_mode previous_mode;
+};
+
+enum {
+	CSC_ITU601_16_235_TO_RGB_0_255_8BIT,
+	CSC_ITU601_0_255_TO_RGB_0_255_8BIT,
+	CSC_ITU709_16_235_TO_RGB_0_255_8BIT,
+	CSC_RGB_0_255_TO_ITU601_16_235_8BIT,
+	CSC_RGB_0_255_TO_ITU709_16_235_8BIT,
+	CSC_RGB_0_255_TO_RGB_16_235_8BIT,
+};
+
+static const char coeff_csc[][24] = {
+	/*
+	 * YUV2RGB:601 SD mode(Y[16:235], UV[16:240], RGB[0:255]):
+	 *   R = 1.164*Y + 1.596*V - 204
+	 *   G = 1.164*Y - 0.391*U - 0.813*V + 154
+	 *   B = 1.164*Y + 2.018*U - 258
+	 */
+	{
+		0x04, 0xa7, 0x00, 0x00, 0x06, 0x62, 0x02, 0xcc,
+		0x04, 0xa7, 0x11, 0x90, 0x13, 0x40, 0x00, 0x9a,
+		0x04, 0xa7, 0x08, 0x12, 0x00, 0x00, 0x03, 0x02
+	},
+	/*
+	 * YUV2RGB:601 SD mode(YUV[0:255],RGB[0:255]):
+	 *   R = Y + 1.402*V - 248
+	 *   G = Y - 0.344*U - 0.714*V + 135
+	 *   B = Y + 1.772*U - 227
+	 */
+	{
+		0x04, 0x00, 0x00, 0x00, 0x05, 0x9b, 0x02, 0xf8,
+		0x04, 0x00, 0x11, 0x60, 0x12, 0xdb, 0x00, 0x87,
+		0x04, 0x00, 0x07, 0x16, 0x00, 0x00, 0x02, 0xe3
+	},
+	/*
+	 * YUV2RGB:709 HD mode(Y[16:235],UV[16:240],RGB[0:255]):
+	 *   R = 1.164*Y + 1.793*V - 248
+	 *   G = 1.164*Y - 0.213*U - 0.534*V + 77
+	 *   B = 1.164*Y + 2.115*U - 289
+	 */
+	{
+		0x04, 0xa7, 0x00, 0x00, 0x07, 0x2c, 0x02, 0xf8,
+		0x04, 0xa7, 0x10, 0xda, 0x12, 0x22, 0x00, 0x4d,
+		0x04, 0xa7, 0x08, 0x74, 0x00, 0x00, 0x03, 0x21
+	},
+
+	/*
+	 * RGB2YUV:601 SD mode:
+	 *   Cb = -0.291G - 0.148R + 0.439B + 128
+	 *   Y  = 0.504G  + 0.257R + 0.098B + 16
+	 *   Cr = -0.368G + 0.439R - 0.071B + 128
+	 */
+	{
+		0x11, 0x5f, 0x01, 0x82, 0x10, 0x23, 0x00, 0x80,
+		0x02, 0x1c, 0x00, 0xa1, 0x00, 0x36, 0x00, 0x1e,
+		0x11, 0x29, 0x10, 0x59, 0x01, 0x82, 0x00, 0x80
+	},
+	/*
+	 * RGB2YUV:709 HD mode:
+	 *   Cb = - 0.338G - 0.101R + 0.439B + 128
+	 *   Y  = 0.614G   + 0.183R + 0.062B + 16
+	 *   Cr = - 0.399G + 0.439R - 0.040B + 128
+	 */
+	{
+		0x11, 0x98, 0x01, 0xc1, 0x10, 0x28, 0x00, 0x80,
+		0x02, 0x74, 0x00, 0xbb, 0x00, 0x3f, 0x00, 0x10,
+		0x11, 0x5a, 0x10, 0x67, 0x01, 0xc1, 0x00, 0x80
+	},
+	/*
+	 * RGB[0:255]2RGB[16:235]:
+	 *   R' = R x (235-16)/255 + 16;
+	 *   G' = G x (235-16)/255 + 16;
+	 *   B' = B x (235-16)/255 + 16;
+	 */
+	{
+		0x00, 0x00, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x10,
+		0x03, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
+		0x00, 0x00, 0x00, 0x00, 0x03, 0x6F, 0x00, 0x10
+	},
+};
+
+static inline u8 hdmi_readb(struct inno_hdmi *hdmi, u16 offset)
+{
+	return readl_relaxed(hdmi->regs + (offset) * 0x04);
+}
+
+static inline void hdmi_writeb(struct inno_hdmi *hdmi, u16 offset, u32 val)
+{
+	writel_relaxed(val, hdmi->regs + (offset) * 0x04);
+}
+
+static inline void hdmi_modb(struct inno_hdmi *hdmi, u16 offset,
+			     u32 msk, u32 val)
+{
+	u8 temp = hdmi_readb(hdmi, offset) & ~msk;
+
+	temp |= val & msk;
+	hdmi_writeb(hdmi, offset, temp);
+}
+
+static void inno_hdmi_i2c_init(struct inno_hdmi *hdmi)
+{
+	int ddc_bus_freq;
+
+	ddc_bus_freq = (hdmi->tmds_rate >> 2) / HDMI_SCL_RATE;
+
+	hdmi_writeb(hdmi, DDC_BUS_FREQ_L, ddc_bus_freq & 0xFF);
+	hdmi_writeb(hdmi, DDC_BUS_FREQ_H, (ddc_bus_freq >> 8) & 0xFF);
+
+	/* Clear the EDID interrupt flag and mute the interrupt */
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0);
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+}
+
+static void inno_hdmi_sys_power(struct inno_hdmi *hdmi, bool enable)
+{
+	if (enable)
+		hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_ON);
+	else
+		hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_OFF);
+}
+
+static void inno_hdmi_set_pwr_mode(struct inno_hdmi *hdmi, int mode)
+{
+	switch (mode) {
+	case NORMAL:
+		inno_hdmi_sys_power(hdmi, false);
+
+		hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x6f);
+		hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0xbb);
+
+		hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x15);
+		hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x14);
+		hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x10);
+		hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x0f);
+		hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x00);
+		hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x01);
+
+		inno_hdmi_sys_power(hdmi, true);
+		break;
+
+	case LOWER_PWR:
+		inno_hdmi_sys_power(hdmi, false);
+		hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0x00);
+		hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x00);
+		hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x00);
+		hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x15);
+
+		break;
+
+	default:
+		dev_err(hdmi->dev, "Unknown power mode %d\n", mode);
+	}
+}
+
+static void inno_hdmi_reset(struct inno_hdmi *hdmi)
+{
+	u32 val;
+	u32 msk;
+
+	hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_DIGITAL, v_NOT_RST_DIGITAL);
+	udelay(100);
+
+	hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_ANALOG, v_NOT_RST_ANALOG);
+	udelay(100);
+
+	msk = m_REG_CLK_INV | m_REG_CLK_SOURCE | m_POWER | m_INT_POL;
+	val = v_REG_CLK_INV | v_REG_CLK_SOURCE_SYS | v_PWR_ON | v_INT_POL_HIGH;
+	hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val);
+
+	inno_hdmi_set_pwr_mode(hdmi, NORMAL);
+}
+
+static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi, int setup_rc,
+				  union hdmi_infoframe *frame, u32 frame_index,
+				  u32 mask, u32 disable, u32 enable)
+{
+	if (mask)
+		hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, mask, disable);
+
+	hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, frame_index);
+
+	if (setup_rc >= 0) {
+		u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
+		ssize_t rc, i;
+
+		rc = hdmi_infoframe_pack(frame, packed_frame,
+					 sizeof(packed_frame));
+		if (rc < 0)
+			return rc;
+
+		for (i = 0; i < rc; i++)
+			hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i,
+				    packed_frame[i]);
+
+		if (mask)
+			hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, mask, enable);
+	}
+
+	return setup_rc;
+}
+
+static int inno_hdmi_config_video_vsi(struct inno_hdmi *hdmi,
+				      struct drm_display_mode *mode)
+{
+	union hdmi_infoframe frame;
+	int rc;
+
+	rc = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi,
+							 mode);
+
+	return inno_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_VSI,
+		m_PACKET_VSI_EN, v_PACKET_VSI_EN(0), v_PACKET_VSI_EN(1));
+}
+
+static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi,
+				      struct drm_display_mode *mode)
+{
+	union hdmi_infoframe frame;
+	int rc;
+
+	rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode);
+
+	if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
+		frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
+	else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
+		frame.avi.colorspace = HDMI_COLORSPACE_YUV422;
+	else
+		frame.avi.colorspace = HDMI_COLORSPACE_RGB;
+
+	return inno_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_AVI, 0, 0, 0);
+}
+
+static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
+{
+	struct hdmi_data_info *data = &hdmi->hdmi_data;
+	int c0_c2_change = 0;
+	int csc_enable = 0;
+	int csc_mode = 0;
+	int auto_csc = 0;
+	int value;
+	int i;
+
+	/* Input video mode is SDR RGB24bit, data enable signal from external */
+	hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL1, v_DE_EXTERNAL |
+		    v_VIDEO_INPUT_FORMAT(VIDEO_INPUT_SDR_RGB444));
+
+	/* Input color hardcode to RGB, and output color hardcode to RGB888 */
+	value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) |
+		v_VIDEO_OUTPUT_COLOR(0) |
+		v_VIDEO_INPUT_CSP(0);
+	hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value);
+
+	if (data->enc_in_format == data->enc_out_format) {
+		if ((data->enc_in_format == HDMI_COLORSPACE_RGB) ||
+		    (data->enc_in_format >= HDMI_COLORSPACE_YUV444)) {
+			value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1);
+			hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
+
+			hdmi_modb(hdmi, HDMI_VIDEO_CONTRL,
+				  m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP,
+				  v_VIDEO_AUTO_CSC(AUTO_CSC_DISABLE) |
+				  v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE));
+			return 0;
+		}
+	}
+
+	if (data->colorimetry == HDMI_COLORIMETRY_ITU_601) {
+		if ((data->enc_in_format == HDMI_COLORSPACE_RGB) &&
+		    (data->enc_out_format == HDMI_COLORSPACE_YUV444)) {
+			csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT;
+			auto_csc = AUTO_CSC_DISABLE;
+			c0_c2_change = C0_C2_CHANGE_DISABLE;
+			csc_enable = v_CSC_ENABLE;
+		} else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) &&
+			   (data->enc_out_format == HDMI_COLORSPACE_RGB)) {
+			csc_mode = CSC_ITU601_16_235_TO_RGB_0_255_8BIT;
+			auto_csc = AUTO_CSC_ENABLE;
+			c0_c2_change = C0_C2_CHANGE_DISABLE;
+			csc_enable = v_CSC_DISABLE;
+		}
+	} else {
+		if ((data->enc_in_format == HDMI_COLORSPACE_RGB) &&
+		    (data->enc_out_format == HDMI_COLORSPACE_YUV444)) {
+			csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT;
+			auto_csc = AUTO_CSC_DISABLE;
+			c0_c2_change = C0_C2_CHANGE_DISABLE;
+			csc_enable = v_CSC_ENABLE;
+		} else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) &&
+			   (data->enc_out_format == HDMI_COLORSPACE_RGB)) {
+			csc_mode = CSC_ITU709_16_235_TO_RGB_0_255_8BIT;
+			auto_csc = AUTO_CSC_ENABLE;
+			c0_c2_change = C0_C2_CHANGE_DISABLE;
+			csc_enable = v_CSC_DISABLE;
+		}
+	}
+
+	for (i = 0; i < 24; i++)
+		hdmi_writeb(hdmi, HDMI_VIDEO_CSC_COEF + i,
+			    coeff_csc[csc_mode][i]);
+
+	value = v_SOF_DISABLE | csc_enable | v_COLOR_DEPTH_NOT_INDICATED(1);
+	hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
+	hdmi_modb(hdmi, HDMI_VIDEO_CONTRL, m_VIDEO_AUTO_CSC |
+		  m_VIDEO_C0_C2_SWAP, v_VIDEO_AUTO_CSC(auto_csc) |
+		  v_VIDEO_C0_C2_SWAP(c0_c2_change));
+
+	return 0;
+}
+
+static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
+					 struct drm_display_mode *mode)
+{
+	int value;
+
+	/* Set detail external video timing polarity and interlace mode */
+	value = v_EXTERANL_VIDEO(1);
+	value |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
+		 v_HSYNC_POLARITY(1) : v_HSYNC_POLARITY(0);
+	value |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
+		 v_VSYNC_POLARITY(1) : v_VSYNC_POLARITY(0);
+	value |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
+		 v_INETLACE(1) : v_INETLACE(0);
+	hdmi_writeb(hdmi, HDMI_VIDEO_TIMING_CTL, value);
+
+	/* Set detail external video timing */
+	value = mode->htotal;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_L, value & 0xFF);
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_H, (value >> 8) & 0xFF);
+
+	value = mode->htotal - mode->hdisplay;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_L, value & 0xFF);
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_H, (value >> 8) & 0xFF);
+
+	value = mode->hsync_start - mode->hdisplay;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_L, value & 0xFF);
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_H, (value >> 8) & 0xFF);
+
+	value = mode->hsync_end - mode->hsync_start;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_L, value & 0xFF);
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_H, (value >> 8) & 0xFF);
+
+	value = mode->vtotal;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_L, value & 0xFF);
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_H, (value >> 8) & 0xFF);
+
+	value = mode->vtotal - mode->vdisplay;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VBLANK, value & 0xFF);
+
+	value = mode->vsync_start - mode->vdisplay;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDELAY, value & 0xFF);
+
+	value = mode->vsync_end - mode->vsync_start;
+	hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDURATION, value & 0xFF);
+
+	hdmi_writeb(hdmi, HDMI_PHY_PRE_DIV_RATIO, 0x1e);
+	hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_LOW, 0x2c);
+	hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH, 0x01);
+
+	return 0;
+}
+
+static int inno_hdmi_setup(struct inno_hdmi *hdmi,
+			   struct drm_display_mode *mode)
+{
+	hdmi->hdmi_data.vic = drm_match_cea_mode(mode);
+
+	hdmi->hdmi_data.enc_in_format = HDMI_COLORSPACE_RGB;
+	hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;
+
+	if ((hdmi->hdmi_data.vic == 6) || (hdmi->hdmi_data.vic == 7) ||
+	    (hdmi->hdmi_data.vic == 21) || (hdmi->hdmi_data.vic == 22) ||
+	    (hdmi->hdmi_data.vic == 2) || (hdmi->hdmi_data.vic == 3) ||
+	    (hdmi->hdmi_data.vic == 17) || (hdmi->hdmi_data.vic == 18))
+		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
+	else
+		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
+
+	/* Mute video and audio output */
+	hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
+		  v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1));
+
+	/* Set HDMI Mode */
+	hdmi_writeb(hdmi, HDMI_HDCP_CTRL,
+		    v_HDMI_DVI(hdmi->hdmi_data.sink_is_hdmi));
+
+	inno_hdmi_config_video_timing(hdmi, mode);
+
+	inno_hdmi_config_video_csc(hdmi);
+
+	if (hdmi->hdmi_data.sink_is_hdmi) {
+		inno_hdmi_config_video_avi(hdmi, mode);
+		inno_hdmi_config_video_vsi(hdmi, mode);
+	}
+
+	/*
+	 * When IP controller have configured to an accurate video
+	 * timing, then the TMDS clock source would be switched to
+	 * DCLK_LCDC, so we need to init the TMDS rate to mode pixel
+	 * clock rate, and reconfigure the DDC clock.
+	 */
+	hdmi->tmds_rate = mode->clock * 1000;
+	inno_hdmi_i2c_init(hdmi);
+
+	/* Unmute video and audio output */
+	hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
+		  v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0));
+
+	return 0;
+}
+
+static void inno_hdmi_encoder_mode_set(struct drm_encoder *encoder,
+				       struct drm_display_mode *mode,
+				       struct drm_display_mode *adj_mode)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
+
+	inno_hdmi_setup(hdmi, adj_mode);
+
+	/* Store the display mode for plugin/DPMS poweron events */
+	memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode));
+}
+
+static void inno_hdmi_encoder_enable(struct drm_encoder *encoder)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
+
+	rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
+				      ROCKCHIP_OUT_MODE_P888);
+
+	inno_hdmi_set_pwr_mode(hdmi, NORMAL);
+}
+
+static void inno_hdmi_encoder_disable(struct drm_encoder *encoder)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
+
+	inno_hdmi_set_pwr_mode(hdmi, LOWER_PWR);
+}
+
+static bool inno_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
+					 const struct drm_display_mode *mode,
+					 struct drm_display_mode *adj_mode)
+{
+	return true;
+}
+
+static struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = {
+	.enable     = inno_hdmi_encoder_enable,
+	.disable    = inno_hdmi_encoder_disable,
+	.mode_fixup = inno_hdmi_encoder_mode_fixup,
+	.mode_set   = inno_hdmi_encoder_mode_set,
+};
+
+static struct drm_encoder_funcs inno_hdmi_encoder_funcs = {
+	.destroy = drm_encoder_cleanup,
+};
+
+static enum drm_connector_status
+inno_hdmi_connector_detect(struct drm_connector *connector, bool force)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+
+	return (hdmi_readb(hdmi, HDMI_STATUS) & m_HOTPLUG) ?
+		connector_status_connected : connector_status_disconnected;
+}
+
+static int inno_hdmi_connector_get_modes(struct drm_connector *connector)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+	struct edid *edid;
+	int ret = 0;
+
+	if (!hdmi->ddc)
+		return 0;
+
+	edid = drm_get_edid(connector, hdmi->ddc);
+	if (edid) {
+		hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid);
+		hdmi->hdmi_data.sink_has_audio = drm_detect_monitor_audio(edid);
+		drm_mode_connector_update_edid_property(connector, edid);
+		ret = drm_add_edid_modes(connector, edid);
+		kfree(edid);
+	}
+
+	return ret;
+}
+
+static enum drm_mode_status
+inno_hdmi_connector_mode_valid(struct drm_connector *connector,
+			       struct drm_display_mode *mode)
+{
+	return MODE_OK;
+}
+
+static struct drm_encoder *
+inno_hdmi_connector_best_encoder(struct drm_connector *connector)
+{
+	struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+
+	return &hdmi->encoder;
+}
+
+static int
+inno_hdmi_probe_single_connector_modes(struct drm_connector *connector,
+				       uint32_t maxX, uint32_t maxY)
+{
+	return drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+}
+
+static void inno_hdmi_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs inno_hdmi_connector_funcs = {
+	.dpms = drm_atomic_helper_connector_dpms,
+	.fill_modes = inno_hdmi_probe_single_connector_modes,
+	.detect = inno_hdmi_connector_detect,
+	.destroy = inno_hdmi_connector_destroy,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static struct drm_connector_helper_funcs inno_hdmi_connector_helper_funcs = {
+	.get_modes = inno_hdmi_connector_get_modes,
+	.mode_valid = inno_hdmi_connector_mode_valid,
+	.best_encoder = inno_hdmi_connector_best_encoder,
+};
+
+static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi)
+{
+	struct drm_encoder *encoder = &hdmi->encoder;
+	struct device *dev = hdmi->dev;
+
+	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+
+	/*
+	 * If we failed to find the CRTC(s) which this encoder is
+	 * supposed to be connected to, it's because the CRTC has
+	 * not been registered yet.  Defer probing, and hope that
+	 * the required CRTC is added later.
+	 */
+	if (encoder->possible_crtcs == 0)
+		return -EPROBE_DEFER;
+
+	drm_encoder_helper_add(encoder, &inno_hdmi_encoder_helper_funcs);
+	drm_encoder_init(drm, encoder, &inno_hdmi_encoder_funcs,
+			 DRM_MODE_ENCODER_TMDS, NULL);
+
+	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
+
+	drm_connector_helper_add(&hdmi->connector,
+				 &inno_hdmi_connector_helper_funcs);
+	drm_connector_init(drm, &hdmi->connector, &inno_hdmi_connector_funcs,
+			   DRM_MODE_CONNECTOR_HDMIA);
+
+	drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
+
+	return 0;
+}
+
+static irqreturn_t inno_hdmi_i2c_irq(struct inno_hdmi *hdmi)
+{
+	struct inno_hdmi_i2c *i2c = hdmi->i2c;
+	u8 stat;
+
+	stat = hdmi_readb(hdmi, HDMI_INTERRUPT_STATUS1);
+	if (!(stat & m_INT_EDID_READY))
+		return IRQ_NONE;
+
+	/* Clear HDMI EDID interrupt flag */
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+
+	complete(&i2c->cmp);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t inno_hdmi_hardirq(int irq, void *dev_id)
+{
+	struct inno_hdmi *hdmi = dev_id;
+	irqreturn_t ret = IRQ_NONE;
+	u8 interrupt;
+
+	if (hdmi->i2c)
+		ret = inno_hdmi_i2c_irq(hdmi);
+
+	interrupt = hdmi_readb(hdmi, HDMI_STATUS);
+	if (interrupt & m_INT_HOTPLUG) {
+		hdmi_modb(hdmi, HDMI_STATUS, m_INT_HOTPLUG, m_INT_HOTPLUG);
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	return ret;
+}
+
+static irqreturn_t inno_hdmi_irq(int irq, void *dev_id)
+{
+	struct inno_hdmi *hdmi = dev_id;
+
+	drm_helper_hpd_irq_event(hdmi->connector.dev);
+
+	return IRQ_HANDLED;
+}
+
+static int inno_hdmi_i2c_read(struct inno_hdmi *hdmi, struct i2c_msg *msgs)
+{
+	int length = msgs->len;
+	u8 *buf = msgs->buf;
+	int ret;
+
+	ret = wait_for_completion_timeout(&hdmi->i2c->cmp, HZ / 10);
+	if (!ret)
+		return -EAGAIN;
+
+	while (length--)
+		*buf++ = hdmi_readb(hdmi, HDMI_EDID_FIFO_ADDR);
+
+	return 0;
+}
+
+static int inno_hdmi_i2c_write(struct inno_hdmi *hdmi, struct i2c_msg *msgs)
+{
+	/*
+	 * The DDC module only support read EDID message, so
+	 * we assume that each word write to this i2c adapter
+	 * should be the offset of EDID word address.
+	 */
+	if ((msgs->len != 1) ||
+	    ((msgs->addr != DDC_ADDR) && (msgs->addr != DDC_SEGMENT_ADDR)))
+		return -EINVAL;
+
+	reinit_completion(&hdmi->i2c->cmp);
+
+	if (msgs->addr == DDC_SEGMENT_ADDR)
+		hdmi->i2c->segment_addr = msgs->buf[0];
+	if (msgs->addr == DDC_ADDR)
+		hdmi->i2c->ddc_addr = msgs->buf[0];
+
+	/* Set edid fifo first addr */
+	hdmi_writeb(hdmi, HDMI_EDID_FIFO_OFFSET, 0x00);
+
+	/* Set edid word address 0x00/0x80 */
+	hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr);
+
+	/* Set edid segment pointer */
+	hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr);
+
+	return 0;
+}
+
+static int inno_hdmi_i2c_xfer(struct i2c_adapter *adap,
+			      struct i2c_msg *msgs, int num)
+{
+	struct inno_hdmi *hdmi = i2c_get_adapdata(adap);
+	struct inno_hdmi_i2c *i2c = hdmi->i2c;
+	int i, ret = 0;
+
+	mutex_lock(&i2c->lock);
+
+	/* Clear the EDID interrupt flag and unmute the interrupt */
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, m_INT_EDID_READY);
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+
+	for (i = 0; i < num; i++) {
+		dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n",
+			i + 1, num, msgs[i].len, msgs[i].flags);
+
+		if (msgs[i].flags & I2C_M_RD)
+			ret = inno_hdmi_i2c_read(hdmi, &msgs[i]);
+		else
+			ret = inno_hdmi_i2c_write(hdmi, &msgs[i]);
+
+		if (ret < 0)
+			break;
+	}
+
+	if (!ret)
+		ret = num;
+
+	/* Mute HDMI EDID interrupt */
+	hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0);
+
+	mutex_unlock(&i2c->lock);
+
+	return ret;
+}
+
+static u32 inno_hdmi_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm inno_hdmi_algorithm = {
+	.master_xfer	= inno_hdmi_i2c_xfer,
+	.functionality	= inno_hdmi_i2c_func,
+};
+
+static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi)
+{
+	struct i2c_adapter *adap;
+	struct inno_hdmi_i2c *i2c;
+	int ret;
+
+	i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);
+	if (!i2c)
+		return ERR_PTR(-ENOMEM);
+
+	mutex_init(&i2c->lock);
+	init_completion(&i2c->cmp);
+
+	adap = &i2c->adap;
+	adap->class = I2C_CLASS_DDC;
+	adap->owner = THIS_MODULE;
+	adap->dev.parent = hdmi->dev;
+	adap->dev.of_node = hdmi->dev->of_node;
+	adap->algo = &inno_hdmi_algorithm;
+	strlcpy(adap->name, "Inno HDMI", sizeof(adap->name));
+	i2c_set_adapdata(adap, hdmi);
+
+	ret = i2c_add_adapter(adap);
+	if (ret) {
+		dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name);
+		devm_kfree(hdmi->dev, i2c);
+		return ERR_PTR(ret);
+	}
+
+	hdmi->i2c = i2c;
+
+	dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name);
+
+	return adap;
+}
+
+static int inno_hdmi_bind(struct device *dev, struct device *master,
+				 void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *drm = data;
+	struct inno_hdmi *hdmi;
+	struct resource *iores;
+	int irq;
+	int ret;
+
+	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return -ENOMEM;
+
+	hdmi->dev = dev;
+	hdmi->drm_dev = drm;
+
+	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!iores)
+		return -ENXIO;
+
+	hdmi->regs = devm_ioremap_resource(dev, iores);
+	if (IS_ERR(hdmi->regs))
+		return PTR_ERR(hdmi->regs);
+
+	hdmi->pclk = devm_clk_get(hdmi->dev, "pclk");
+	if (IS_ERR(hdmi->pclk)) {
+		dev_err(hdmi->dev, "Unable to get HDMI pclk clk\n");
+		return PTR_ERR(hdmi->pclk);
+	}
+
+	ret = clk_prepare_enable(hdmi->pclk);
+	if (ret) {
+		dev_err(hdmi->dev, "Cannot enable HDMI pclk clock: %d\n", ret);
+		return ret;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	inno_hdmi_reset(hdmi);
+
+	hdmi->ddc = inno_hdmi_i2c_adapter(hdmi);
+	if (IS_ERR(hdmi->ddc)) {
+		hdmi->ddc = NULL;
+		return PTR_ERR(hdmi->ddc);
+	}
+
+	/*
+	 * When IP controller haven't configured to an accurate video
+	 * timing, then the TMDS clock source would be switched to
+	 * PCLK_HDMI, so we need to init the TMDS rate to PCLK rate,
+	 * and reconfigure the DDC clock.
+	 */
+	hdmi->tmds_rate = clk_get_rate(hdmi->pclk);
+	inno_hdmi_i2c_init(hdmi);
+
+	ret = inno_hdmi_register(drm, hdmi);
+	if (ret)
+		return ret;
+
+	dev_set_drvdata(dev, hdmi);
+
+	/* Unmute hotplug interrupt */
+	hdmi_modb(hdmi, HDMI_STATUS, m_MASK_INT_HOTPLUG, v_MASK_INT_HOTPLUG(1));
+
+	ret = devm_request_threaded_irq(dev, irq, inno_hdmi_hardirq,
+					inno_hdmi_irq, IRQF_SHARED,
+					dev_name(dev), hdmi);
+
+	return ret;
+}
+
+static void inno_hdmi_unbind(struct device *dev, struct device *master,
+			     void *data)
+{
+	struct inno_hdmi *hdmi = dev_get_drvdata(dev);
+
+	hdmi->connector.funcs->destroy(&hdmi->connector);
+	hdmi->encoder.funcs->destroy(&hdmi->encoder);
+
+	clk_disable_unprepare(hdmi->pclk);
+	i2c_put_adapter(hdmi->ddc);
+}
+
+static const struct component_ops inno_hdmi_ops = {
+	.bind	= inno_hdmi_bind,
+	.unbind	= inno_hdmi_unbind,
+};
+
+static int inno_hdmi_probe(struct platform_device *pdev)
+{
+	return component_add(&pdev->dev, &inno_hdmi_ops);
+}
+
+static int inno_hdmi_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &inno_hdmi_ops);
+
+	return 0;
+}
+
+static const struct of_device_id inno_hdmi_dt_ids[] = {
+	{ .compatible = "rockchip,rk3036-inno-hdmi",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, inno_hdmi_dt_ids);
+
+static struct platform_driver inno_hdmi_driver = {
+	.probe  = inno_hdmi_probe,
+	.remove = inno_hdmi_remove,
+	.driver = {
+		.name = "innohdmi-rockchip",
+		.of_match_table = inno_hdmi_dt_ids,
+	},
+};
+
+module_platform_driver(inno_hdmi_driver);
+
+MODULE_AUTHOR("Zheng Yang <zhengyang@rock-chips.com>");
+MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip Specific INNO-HDMI Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:innohdmi-rockchip");

drivers/gpu/drm/rockchip/inno_hdmi.h

@@ -0,0 +1,362 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ *    Zheng Yang <zhengyang@rock-chips.com>
+ *    Yakir Yang <ykk@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __INNO_HDMI_H__
+#define __INNO_HDMI_H__
+
+#define DDC_SEGMENT_ADDR		0x30
+
+enum PWR_MODE {
+	NORMAL,
+	LOWER_PWR,
+};
+
+#define HDMI_SCL_RATE			(100*1000)
+#define DDC_BUS_FREQ_L			0x4b
+#define DDC_BUS_FREQ_H			0x4c
+
+#define HDMI_SYS_CTRL			0x00
+#define m_RST_ANALOG			(1 << 6)
+#define v_RST_ANALOG			(0 << 6)
+#define v_NOT_RST_ANALOG		(1 << 6)
+#define m_RST_DIGITAL			(1 << 5)
+#define v_RST_DIGITAL			(0 << 5)
+#define v_NOT_RST_DIGITAL		(1 << 5)
+#define m_REG_CLK_INV			(1 << 4)
+#define v_REG_CLK_NOT_INV		(0 << 4)
+#define v_REG_CLK_INV			(1 << 4)
+#define m_VCLK_INV			(1 << 3)
+#define v_VCLK_NOT_INV			(0 << 3)
+#define v_VCLK_INV			(1 << 3)
+#define m_REG_CLK_SOURCE		(1 << 2)
+#define v_REG_CLK_SOURCE_TMDS		(0 << 2)
+#define v_REG_CLK_SOURCE_SYS		(1 << 2)
+#define m_POWER				(1 << 1)
+#define v_PWR_ON			(0 << 1)
+#define v_PWR_OFF			(1 << 1)
+#define m_INT_POL			(1 << 0)
+#define v_INT_POL_HIGH			1
+#define v_INT_POL_LOW			0
+
+#define HDMI_VIDEO_CONTRL1		0x01
+#define m_VIDEO_INPUT_FORMAT		(7 << 1)
+#define m_DE_SOURCE			(1 << 0)
+#define v_VIDEO_INPUT_FORMAT(n)		(n << 1)
+#define v_DE_EXTERNAL			1
+#define v_DE_INTERNAL			0
+enum {
+	VIDEO_INPUT_SDR_RGB444 = 0,
+	VIDEO_INPUT_DDR_RGB444 = 5,
+	VIDEO_INPUT_DDR_YCBCR422 = 6
+};
+
+#define HDMI_VIDEO_CONTRL2		0x02
+#define m_VIDEO_OUTPUT_COLOR		(3 << 6)
+#define m_VIDEO_INPUT_BITS		(3 << 4)
+#define m_VIDEO_INPUT_CSP		(1 << 0)
+#define v_VIDEO_OUTPUT_COLOR(n)		(((n) & 0x3) << 6)
+#define v_VIDEO_INPUT_BITS(n)		(n << 4)
+#define v_VIDEO_INPUT_CSP(n)		(n << 0)
+enum {
+	VIDEO_INPUT_12BITS = 0,
+	VIDEO_INPUT_10BITS = 1,
+	VIDEO_INPUT_REVERT = 2,
+	VIDEO_INPUT_8BITS = 3,
+};
+
+#define HDMI_VIDEO_CONTRL		0x03
+#define m_VIDEO_AUTO_CSC		(1 << 7)
+#define v_VIDEO_AUTO_CSC(n)		(n << 7)
+#define m_VIDEO_C0_C2_SWAP		(1 << 0)
+#define v_VIDEO_C0_C2_SWAP(n)		(n << 0)
+enum {
+	C0_C2_CHANGE_ENABLE = 0,
+	C0_C2_CHANGE_DISABLE = 1,
+	AUTO_CSC_DISABLE = 0,
+	AUTO_CSC_ENABLE = 1,
+};
+
+#define HDMI_VIDEO_CONTRL3		0x04
+#define m_COLOR_DEPTH_NOT_INDICATED	(1 << 4)
+#define m_SOF				(1 << 3)
+#define m_COLOR_RANGE			(1 << 2)
+#define m_CSC				(1 << 0)
+#define v_COLOR_DEPTH_NOT_INDICATED(n)	((n) << 4)
+#define v_SOF_ENABLE			(0 << 3)
+#define v_SOF_DISABLE			(1 << 3)
+#define v_COLOR_RANGE_FULL		(1 << 2)
+#define v_COLOR_RANGE_LIMITED		(0 << 2)
+#define v_CSC_ENABLE			1
+#define v_CSC_DISABLE			0
+
+#define HDMI_AV_MUTE			0x05
+#define m_AVMUTE_CLEAR			(1 << 7)
+#define m_AVMUTE_ENABLE			(1 << 6)
+#define m_AUDIO_MUTE			(1 << 1)
+#define m_VIDEO_BLACK			(1 << 0)
+#define v_AVMUTE_CLEAR(n)		(n << 7)
+#define v_AVMUTE_ENABLE(n)		(n << 6)
+#define v_AUDIO_MUTE(n)			(n << 1)
+#define v_VIDEO_MUTE(n)			(n << 0)
+
+#define HDMI_VIDEO_TIMING_CTL		0x08
+#define v_HSYNC_POLARITY(n)		(n << 3)
+#define v_VSYNC_POLARITY(n)		(n << 2)
+#define v_INETLACE(n)			(n << 1)
+#define v_EXTERANL_VIDEO(n)		(n << 0)
+
+#define HDMI_VIDEO_EXT_HTOTAL_L		0x09
+#define HDMI_VIDEO_EXT_HTOTAL_H		0x0a
+#define HDMI_VIDEO_EXT_HBLANK_L		0x0b
+#define HDMI_VIDEO_EXT_HBLANK_H		0x0c
+#define HDMI_VIDEO_EXT_HDELAY_L		0x0d
+#define HDMI_VIDEO_EXT_HDELAY_H		0x0e
+#define HDMI_VIDEO_EXT_HDURATION_L	0x0f
+#define HDMI_VIDEO_EXT_HDURATION_H	0x10
+#define HDMI_VIDEO_EXT_VTOTAL_L		0x11
+#define HDMI_VIDEO_EXT_VTOTAL_H		0x12
+#define HDMI_VIDEO_EXT_VBLANK		0x13
+#define HDMI_VIDEO_EXT_VDELAY		0x14
+#define HDMI_VIDEO_EXT_VDURATION	0x15
+
+#define HDMI_VIDEO_CSC_COEF		0x18
+
+#define HDMI_AUDIO_CTRL1		0x35
+enum {
+	CTS_SOURCE_INTERNAL = 0,
+	CTS_SOURCE_EXTERNAL = 1,
+};
+#define v_CTS_SOURCE(n)			(n << 7)
+
+enum {
+	DOWNSAMPLE_DISABLE = 0,
+	DOWNSAMPLE_1_2 = 1,
+	DOWNSAMPLE_1_4 = 2,
+};
+#define v_DOWN_SAMPLE(n)		(n << 5)
+
+enum {
+	AUDIO_SOURCE_IIS = 0,
+	AUDIO_SOURCE_SPDIF = 1,
+};
+#define v_AUDIO_SOURCE(n)		(n << 3)
+
+#define v_MCLK_ENABLE(n)		(n << 2)
+enum {
+	MCLK_128FS = 0,
+	MCLK_256FS = 1,
+	MCLK_384FS = 2,
+	MCLK_512FS = 3,
+};
+#define v_MCLK_RATIO(n)			(n)
+
+#define AUDIO_SAMPLE_RATE		0x37
+enum {
+	AUDIO_32K = 0x3,
+	AUDIO_441K = 0x0,
+	AUDIO_48K = 0x2,
+	AUDIO_882K = 0x8,
+	AUDIO_96K = 0xa,
+	AUDIO_1764K = 0xc,
+	AUDIO_192K = 0xe,
+};
+
+#define AUDIO_I2S_MODE			0x38
+enum {
+	I2S_CHANNEL_1_2 = 1,
+	I2S_CHANNEL_3_4 = 3,
+	I2S_CHANNEL_5_6 = 7,
+	I2S_CHANNEL_7_8 = 0xf
+};
+#define v_I2S_CHANNEL(n)		((n) << 2)
+enum {
+	I2S_STANDARD = 0,
+	I2S_LEFT_JUSTIFIED = 1,
+	I2S_RIGHT_JUSTIFIED = 2,
+};
+#define v_I2S_MODE(n)			(n)
+
+#define AUDIO_I2S_MAP			0x39
+#define AUDIO_I2S_SWAPS_SPDIF		0x3a
+#define v_SPIDF_FREQ(n)			(n)
+
+#define N_32K				0x1000
+#define N_441K				0x1880
+#define N_882K				0x3100
+#define N_1764K				0x6200
+#define N_48K				0x1800
+#define N_96K				0x3000
+#define N_192K				0x6000
+
+#define HDMI_AUDIO_CHANNEL_STATUS	0x3e
+#define m_AUDIO_STATUS_NLPCM		(1 << 7)
+#define m_AUDIO_STATUS_USE		(1 << 6)
+#define m_AUDIO_STATUS_COPYRIGHT	(1 << 5)
+#define m_AUDIO_STATUS_ADDITION		(3 << 2)
+#define m_AUDIO_STATUS_CLK_ACCURACY	(2 << 0)
+#define v_AUDIO_STATUS_NLPCM(n)		((n & 1) << 7)
+#define AUDIO_N_H			0x3f
+#define AUDIO_N_M			0x40
+#define AUDIO_N_L			0x41
+
+#define HDMI_AUDIO_CTS_H		0x45
+#define HDMI_AUDIO_CTS_M		0x46
+#define HDMI_AUDIO_CTS_L		0x47
+
+#define HDMI_DDC_CLK_L			0x4b
+#define HDMI_DDC_CLK_H			0x4c
+
+#define HDMI_EDID_SEGMENT_POINTER	0x4d
+#define HDMI_EDID_WORD_ADDR		0x4e
+#define HDMI_EDID_FIFO_OFFSET		0x4f
+#define HDMI_EDID_FIFO_ADDR		0x50
+
+#define HDMI_PACKET_SEND_MANUAL		0x9c
+#define HDMI_PACKET_SEND_AUTO		0x9d
+#define m_PACKET_GCP_EN			(1 << 7)
+#define m_PACKET_MSI_EN			(1 << 6)
+#define m_PACKET_SDI_EN			(1 << 5)
+#define m_PACKET_VSI_EN			(1 << 4)
+#define v_PACKET_GCP_EN(n)		((n & 1) << 7)
+#define v_PACKET_MSI_EN(n)		((n & 1) << 6)
+#define v_PACKET_SDI_EN(n)		((n & 1) << 5)
+#define v_PACKET_VSI_EN(n)		((n & 1) << 4)
+
+#define HDMI_CONTROL_PACKET_BUF_INDEX	0x9f
+enum {
+	INFOFRAME_VSI = 0x05,
+	INFOFRAME_AVI = 0x06,
+	INFOFRAME_AAI = 0x08,
+};
+
+#define HDMI_CONTROL_PACKET_ADDR	0xa0
+#define HDMI_MAXIMUM_INFO_FRAME_SIZE	0x11
+enum {
+	AVI_COLOR_MODE_RGB = 0,
+	AVI_COLOR_MODE_YCBCR422 = 1,
+	AVI_COLOR_MODE_YCBCR444 = 2,
+	AVI_COLORIMETRY_NO_DATA = 0,
+
+	AVI_COLORIMETRY_SMPTE_170M = 1,
+	AVI_COLORIMETRY_ITU709 = 2,
+	AVI_COLORIMETRY_EXTENDED = 3,
+
+	AVI_CODED_FRAME_ASPECT_NO_DATA = 0,
+	AVI_CODED_FRAME_ASPECT_4_3 = 1,
+	AVI_CODED_FRAME_ASPECT_16_9 = 2,
+
+	ACTIVE_ASPECT_RATE_SAME_AS_CODED_FRAME = 0x08,
+	ACTIVE_ASPECT_RATE_4_3 = 0x09,
+	ACTIVE_ASPECT_RATE_16_9 = 0x0A,
+	ACTIVE_ASPECT_RATE_14_9 = 0x0B,
+};
+
+#define HDMI_HDCP_CTRL			0x52
+#define m_HDMI_DVI			(1 << 1)
+#define v_HDMI_DVI(n)			(n << 1)
+
+#define HDMI_INTERRUPT_MASK1		0xc0
+#define HDMI_INTERRUPT_STATUS1		0xc1
+#define	m_INT_ACTIVE_VSYNC		(1 << 5)
+#define m_INT_EDID_READY		(1 << 2)
+
+#define HDMI_INTERRUPT_MASK2		0xc2
+#define HDMI_INTERRUPT_STATUS2		0xc3
+#define m_INT_HDCP_ERR			(1 << 7)
+#define m_INT_BKSV_FLAG			(1 << 6)
+#define m_INT_HDCP_OK			(1 << 4)
+
+#define HDMI_STATUS			0xc8
+#define m_HOTPLUG			(1 << 7)
+#define m_MASK_INT_HOTPLUG		(1 << 5)
+#define m_INT_HOTPLUG			(1 << 1)
+#define v_MASK_INT_HOTPLUG(n)		((n & 0x1) << 5)
+
+#define HDMI_COLORBAR                   0xc9
+
+#define HDMI_PHY_SYNC			0xce
+#define HDMI_PHY_SYS_CTL		0xe0
+#define m_TMDS_CLK_SOURCE		(1 << 5)
+#define v_TMDS_FROM_PLL			(0 << 5)
+#define v_TMDS_FROM_GEN			(1 << 5)
+#define m_PHASE_CLK			(1 << 4)
+#define v_DEFAULT_PHASE			(0 << 4)
+#define v_SYNC_PHASE			(1 << 4)
+#define m_TMDS_CURRENT_PWR		(1 << 3)
+#define v_TURN_ON_CURRENT		(0 << 3)
+#define v_CAT_OFF_CURRENT		(1 << 3)
+#define m_BANDGAP_PWR			(1 << 2)
+#define v_BANDGAP_PWR_UP		(0 << 2)
+#define v_BANDGAP_PWR_DOWN		(1 << 2)
+#define m_PLL_PWR			(1 << 1)
+#define v_PLL_PWR_UP			(0 << 1)
+#define v_PLL_PWR_DOWN			(1 << 1)
+#define m_TMDS_CHG_PWR			(1 << 0)
+#define v_TMDS_CHG_PWR_UP		(0 << 0)
+#define v_TMDS_CHG_PWR_DOWN		(1 << 0)
+
+#define HDMI_PHY_CHG_PWR		0xe1
+#define v_CLK_CHG_PWR(n)		((n & 1) << 3)
+#define v_DATA_CHG_PWR(n)		((n & 7) << 0)
+
+#define HDMI_PHY_DRIVER			0xe2
+#define v_CLK_MAIN_DRIVER(n)		(n << 4)
+#define v_DATA_MAIN_DRIVER(n)		(n << 0)
+
+#define HDMI_PHY_PRE_EMPHASIS		0xe3
+#define v_PRE_EMPHASIS(n)		((n & 7) << 4)
+#define v_CLK_PRE_DRIVER(n)		((n & 3) << 2)
+#define v_DATA_PRE_DRIVER(n)		((n & 3) << 0)
+
+#define HDMI_PHY_FEEDBACK_DIV_RATIO_LOW		0xe7
+#define v_FEEDBACK_DIV_LOW(n)			(n & 0xff)
+#define HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH	0xe8
+#define v_FEEDBACK_DIV_HIGH(n)			(n & 1)
+
+#define HDMI_PHY_PRE_DIV_RATIO		0xed
+#define v_PRE_DIV_RATIO(n)		(n & 0x1f)
+
+#define HDMI_CEC_CTRL			0xd0
+#define m_ADJUST_FOR_HISENSE		(1 << 6)
+#define m_REJECT_RX_BROADCAST		(1 << 5)
+#define m_BUSFREETIME_ENABLE		(1 << 2)
+#define m_REJECT_RX			(1 << 1)
+#define m_START_TX			(1 << 0)
+
+#define HDMI_CEC_DATA			0xd1
+#define HDMI_CEC_TX_OFFSET		0xd2
+#define HDMI_CEC_RX_OFFSET		0xd3
+#define HDMI_CEC_CLK_H			0xd4
+#define HDMI_CEC_CLK_L			0xd5
+#define HDMI_CEC_TX_LENGTH		0xd6
+#define HDMI_CEC_RX_LENGTH		0xd7
+#define HDMI_CEC_TX_INT_MASK		0xd8
+#define m_TX_DONE			(1 << 3)
+#define m_TX_NOACK			(1 << 2)
+#define m_TX_BROADCAST_REJ		(1 << 1)
+#define m_TX_BUSNOTFREE			(1 << 0)
+
+#define HDMI_CEC_RX_INT_MASK		0xd9
+#define m_RX_LA_ERR			(1 << 4)
+#define m_RX_GLITCH			(1 << 3)
+#define m_RX_DONE			(1 << 0)
+
+#define HDMI_CEC_TX_INT			0xda
+#define HDMI_CEC_RX_INT			0xdb
+#define HDMI_CEC_BUSFREETIME_L		0xdc
+#define HDMI_CEC_BUSFREETIME_H		0xdd
+#define HDMI_CEC_LOGICADDR		0xde
+
+#endif /* __INNO_HDMI_H__ */

drivers/gpu/drm/rockchip/rockchip_drm_drv.c

@@ -55,14 +55,12 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
 
 	return arm_iommu_attach_device(dev, mapping);
 }
-EXPORT_SYMBOL_GPL(rockchip_drm_dma_attach_device);
 
 void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
 				    struct device *dev)
 {
 	arm_iommu_detach_device(dev);
 }
-EXPORT_SYMBOL_GPL(rockchip_drm_dma_detach_device);
 
 int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
 				 const struct rockchip_crtc_funcs *crtc_funcs)
@@ -77,7 +75,6 @@ int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(rockchip_register_crtc_funcs);
 
 void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc)
 {
@@ -89,7 +86,6 @@ void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc)
 
 	priv->crtc_funcs[pipe] = NULL;
 }
-EXPORT_SYMBOL_GPL(rockchip_unregister_crtc_funcs);
 
 static struct drm_crtc *rockchip_crtc_from_pipe(struct drm_device *drm,
 						int pipe)

drivers/gpu/drm/rockchip/rockchip_drm_fb.c

@@ -39,7 +39,6 @@ struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb,
 
 	return rk_fb->obj[plane];
 }
-EXPORT_SYMBOL_GPL(rockchip_fb_get_gem_obj);
 
 static void rockchip_drm_fb_destroy(struct drm_framebuffer *fb)
 {
@@ -177,8 +176,23 @@ static void rockchip_crtc_wait_for_update(struct drm_crtc *crtc)
 		crtc_funcs->wait_for_update(crtc);
 }
 
+/*
+ * We can't use drm_atomic_helper_wait_for_vblanks() because rk3288 and rk3066
+ * have hardware counters for neither vblanks nor scanlines, which results in
+ * a race where:
+ *				| <-- HW vsync irq and reg take effect
+ *	       plane_commit --> |
+ *	get_vblank and wait --> |
+ *				| <-- handle_vblank, vblank->count + 1
+ *		 cleanup_fb --> |
+ *		iommu crash --> |
+ *				| <-- HW vsync irq and reg take effect
+ *
+ * This function is equivalent but uses rockchip_crtc_wait_for_update() instead
+ * of waiting for vblank_count to change.
+ */
 static void
-rockchip_atomic_wait_for_complete(struct drm_atomic_state *old_state)
+rockchip_atomic_wait_for_complete(struct drm_device *dev, struct drm_atomic_state *old_state)
 {
 	struct drm_crtc_state *old_crtc_state;
 	struct drm_crtc *crtc;
@@ -194,6 +208,10 @@ rockchip_atomic_wait_for_complete(struct drm_atomic_state *old_state)
 		if (!crtc->state->active)
 			continue;
 
+		if (!drm_atomic_helper_framebuffer_changed(dev,
+				old_state, crtc))
+			continue;
+
 		ret = drm_crtc_vblank_get(crtc);
 		if (ret != 0)
 			continue;
@@ -241,7 +259,7 @@ rockchip_atomic_commit_complete(struct rockchip_atomic_commit *commit)
 
 	drm_atomic_helper_commit_planes(dev, state, true);
 
-	rockchip_atomic_wait_for_complete(state);
+	rockchip_atomic_wait_for_complete(dev, state);
 
 	drm_atomic_helper_cleanup_planes(dev, state);
 

drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h

@@ -15,7 +15,18 @@
 #ifndef _ROCKCHIP_DRM_FBDEV_H
 #define _ROCKCHIP_DRM_FBDEV_H
 
+#ifdef CONFIG_DRM_FBDEV_EMULATION
 int rockchip_drm_fbdev_init(struct drm_device *dev);
 void rockchip_drm_fbdev_fini(struct drm_device *dev);
+#else
+static inline int rockchip_drm_fbdev_init(struct drm_device *dev)
+{
+	return 0;
+}
+
+static inline void rockchip_drm_fbdev_fini(struct drm_device *dev)
+{
+}
+#endif
 
 #endif /* _ROCKCHIP_DRM_FBDEV_H */

drivers/gpu/drm/rockchip/rockchip_drm_gem.c

@@ -234,13 +234,8 @@ int rockchip_gem_dumb_create(struct drm_file *file_priv,
 	/*
 	 * align to 64 bytes since Mali requires it.
 	 */
-	min_pitch = ALIGN(min_pitch, 64);
-
-	if (args->pitch < min_pitch)
-		args->pitch = min_pitch;
-
-	if (args->size < args->pitch * args->height)
-		args->size = args->pitch * args->height;
+	args->pitch = ALIGN(min_pitch, 64);
+	args->size = args->pitch * args->height;
 
 	rk_obj = rockchip_gem_create_with_handle(file_priv, dev, args->size,
 						 &args->handle);