fbdev: sh-mobile: HDMI support for SH-Mobile SoCs

Some SH-Mobile SoCs have an HDMI controller and a PHY, attached to one of their
LCDC interfaces. This patch adds a preliminary static support for such
controllers, this means, that only the 720p mode is handled ATM. Support for
more modes and a dynamic switching between them will be added by a follow up
patch.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 1175 insertions, 49 deletions

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index a9f9e5eaa040..830449c382e8 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1914,6 +1914,13 @@ config FB_SH_MOBILE_LCDC
         ---help---
           Frame buffer driver for the on-chip SH-Mobile LCD controller.
 
+config FB_SH_MOBILE_HDMI
+        tristate "SuperH Mobile HDMI controller support"
+        depends on FB_SH_MOBILE_LCDC
+        select FB_MODE_HELPERS
+        ---help---
+          Driver for the on-chip SH-Mobile HDMI controller.
+
 config FB_TMIO
         tristate "Toshiba Mobile IO FrameBuffer support"
         depends on FB && MFD_CORE
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 3c3bf867ef18..e5258279ccb0 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -124,6 +124,7 @@ obj-$(CONFIG_FB_PS3)		  += ps3fb.o
 obj-$(CONFIG_FB_SM501)            += sm501fb.o
 obj-$(CONFIG_FB_XILINX)           += xilinxfb.o
 obj-$(CONFIG_SH_MIPI_DSI)         += sh_mipi_dsi.o
+obj-$(CONFIG_FB_SH_MOBILE_HDMI)   += sh_mobile_hdmi.o
 obj-$(CONFIG_FB_SH_MOBILE_LCDC)   += sh_mobile_lcdcfb.o
 obj-$(CONFIG_FB_OMAP)             += omap/
 obj-y                             += omap2/
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
new file mode 100644
index 000000000000..2fde08cc66bf
--- /dev/null
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -0,0 +1,1028 @@
+/*
+ * SH-Mobile High-Definition Multimedia Interface (HDMI) driver
+ * for SLISHDMI13T and SLIPHDMIT IP cores
+ *
+ * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * 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/clk.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include <video/sh_mobile_hdmi.h>
+#include <video/sh_mobile_lcdc.h>
+
+#define HDMI_SYSTEM_CTRL                        0x00 /* System control */
+#define HDMI_L_R_DATA_SWAP_CTRL_RPKT            0x01 /* L/R data swap control,
+                                                        bits 19..16 of 20-bit N for Audio Clock Regeneration packet */
+#define HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8       0x02 /* bits 15..8 of 20-bit N for Audio Clock Regeneration packet */
+#define HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0        0x03 /* bits 7..0 of 20-bit N for Audio Clock Regeneration packet */
+#define HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS          0x04 /* SPDIF audio sampling frequency,
+                                                        bits 19..16 of Internal CTS */
+#define HDMI_INTERNAL_CTS_15_8                  0x05 /* bits 15..8 of Internal CTS */
+#define HDMI_INTERNAL_CTS_7_0                   0x06 /* bits 7..0 of Internal CTS */
+#define HDMI_EXTERNAL_CTS_19_16                 0x07 /* External CTS */
+#define HDMI_EXTERNAL_CTS_15_8                  0x08 /* External CTS */
+#define HDMI_EXTERNAL_CTS_7_0                   0x09 /* External CTS */
+#define HDMI_AUDIO_SETTING_1                    0x0A /* Audio setting.1 */
+#define HDMI_AUDIO_SETTING_2                    0x0B /* Audio setting.2 */
+#define HDMI_I2S_AUDIO_SET                      0x0C /* I2S audio setting */
+#define HDMI_DSD_AUDIO_SET                      0x0D /* DSD audio setting */
+#define HDMI_DEBUG_MONITOR_1                    0x0E /* Debug monitor.1 */
+#define HDMI_DEBUG_MONITOR_2                    0x0F /* Debug monitor.2 */
+#define HDMI_I2S_INPUT_PIN_SWAP                 0x10 /* I2S input pin swap */
+#define HDMI_AUDIO_STATUS_BITS_SETTING_1        0x11 /* Audio status bits setting.1 */
+#define HDMI_AUDIO_STATUS_BITS_SETTING_2        0x12 /* Audio status bits setting.2 */
+#define HDMI_CATEGORY_CODE                      0x13 /* Category code */
+#define HDMI_SOURCE_NUM_AUDIO_WORD_LEN          0x14 /* Source number/Audio word length */
+#define HDMI_AUDIO_VIDEO_SETTING_1              0x15 /* Audio/Video setting.1 */
+#define HDMI_VIDEO_SETTING_1                    0x16 /* Video setting.1 */
+#define HDMI_DEEP_COLOR_MODES                   0x17 /* Deep Color Modes */
+
+/* 12 16- and 10-bit Color space conversion parameters: 0x18..0x2f */
+#define HDMI_COLOR_SPACE_CONVERSION_PARAMETERS  0x18
+
+#define HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS      0x30 /* External video parameter settings */
+#define HDMI_EXTERNAL_H_TOTAL_7_0               0x31 /* External horizontal total (LSB) */
+#define HDMI_EXTERNAL_H_TOTAL_11_8              0x32 /* External horizontal total (MSB) */
+#define HDMI_EXTERNAL_H_BLANK_7_0               0x33 /* External horizontal blank (LSB) */
+#define HDMI_EXTERNAL_H_BLANK_9_8               0x34 /* External horizontal blank (MSB) */
+#define HDMI_EXTERNAL_H_DELAY_7_0               0x35 /* External horizontal delay (LSB) */
+#define HDMI_EXTERNAL_H_DELAY_9_8               0x36 /* External horizontal delay (MSB) */
+#define HDMI_EXTERNAL_H_DURATION_7_0            0x37 /* External horizontal duration (LSB) */
+#define HDMI_EXTERNAL_H_DURATION_9_8            0x38 /* External horizontal duration (MSB) */
+#define HDMI_EXTERNAL_V_TOTAL_7_0               0x39 /* External vertical total (LSB) */
+#define HDMI_EXTERNAL_V_TOTAL_9_8               0x3A /* External vertical total (MSB) */
+#define HDMI_AUDIO_VIDEO_SETTING_2              0x3B /* Audio/Video setting.2 */
+#define HDMI_EXTERNAL_V_BLANK                   0x3D /* External vertical blank */
+#define HDMI_EXTERNAL_V_DELAY                   0x3E /* External vertical delay */
+#define HDMI_EXTERNAL_V_DURATION                0x3F /* External vertical duration */
+#define HDMI_CTRL_PKT_MANUAL_SEND_CONTROL       0x40 /* Control packet manual send control */
+#define HDMI_CTRL_PKT_AUTO_SEND                 0x41 /* Control packet auto send with VSYNC control */
+#define HDMI_AUTO_CHECKSUM_OPTION               0x42 /* Auto checksum option */
+#define HDMI_VIDEO_SETTING_2                    0x45 /* Video setting.2 */
+#define HDMI_OUTPUT_OPTION                      0x46 /* Output option */
+#define HDMI_SLIPHDMIT_PARAM_OPTION             0x51 /* SLIPHDMIT parameter option */
+#define HDMI_HSYNC_PMENT_AT_EMB_7_0             0x52 /* HSYNC placement at embedded sync (LSB) */
+#define HDMI_HSYNC_PMENT_AT_EMB_15_8            0x53 /* HSYNC placement at embedded sync (MSB) */
+#define HDMI_VSYNC_PMENT_AT_EMB_7_0             0x54 /* VSYNC placement at embedded sync (LSB) */
+#define HDMI_VSYNC_PMENT_AT_EMB_14_8            0x55 /* VSYNC placement at embedded sync (MSB) */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_1         0x56 /* SLIPHDMIT parameter settings.1 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_2         0x57 /* SLIPHDMIT parameter settings.2 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_3         0x58 /* SLIPHDMIT parameter settings.3 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_5         0x59 /* SLIPHDMIT parameter settings.5 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_6         0x5A /* SLIPHDMIT parameter settings.6 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_7         0x5B /* SLIPHDMIT parameter settings.7 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_8         0x5C /* SLIPHDMIT parameter settings.8 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_9         0x5D /* SLIPHDMIT parameter settings.9 */
+#define HDMI_SLIPHDMIT_PARAM_SETTINGS_10        0x5E /* SLIPHDMIT parameter settings.10 */
+#define HDMI_CTRL_PKT_BUF_INDEX                 0x5F /* Control packet buffer index */
+#define HDMI_CTRL_PKT_BUF_ACCESS_HB0            0x60 /* Control packet data buffer access window - HB0 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_HB1            0x61 /* Control packet data buffer access window - HB1 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_HB2            0x62 /* Control packet data buffer access window - HB2 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB0            0x63 /* Control packet data buffer access window - PB0 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB1            0x64 /* Control packet data buffer access window - PB1 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB2            0x65 /* Control packet data buffer access window - PB2 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB3            0x66 /* Control packet data buffer access window - PB3 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB4            0x67 /* Control packet data buffer access window - PB4 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB5            0x68 /* Control packet data buffer access window - PB5 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB6            0x69 /* Control packet data buffer access window - PB6 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB7            0x6A /* Control packet data buffer access window - PB7 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB8            0x6B /* Control packet data buffer access window - PB8 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB9            0x6C /* Control packet data buffer access window - PB9 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB10           0x6D /* Control packet data buffer access window - PB10 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB11           0x6E /* Control packet data buffer access window - PB11 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB12           0x6F /* Control packet data buffer access window - PB12 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB13           0x70 /* Control packet data buffer access window - PB13 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB14           0x71 /* Control packet data buffer access window - PB14 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB15           0x72 /* Control packet data buffer access window - PB15 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB16           0x73 /* Control packet data buffer access window - PB16 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB17           0x74 /* Control packet data buffer access window - PB17 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB18           0x75 /* Control packet data buffer access window - PB18 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB19           0x76 /* Control packet data buffer access window - PB19 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB20           0x77 /* Control packet data buffer access window - PB20 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB21           0x78 /* Control packet data buffer access window - PB21 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB22           0x79 /* Control packet data buffer access window - PB22 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB23           0x7A /* Control packet data buffer access window - PB23 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB24           0x7B /* Control packet data buffer access window - PB24 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB25           0x7C /* Control packet data buffer access window - PB25 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB26           0x7D /* Control packet data buffer access window - PB26 */
+#define HDMI_CTRL_PKT_BUF_ACCESS_PB27           0x7E /* Control packet data buffer access window - PB27 */
+#define HDMI_EDID_KSV_FIFO_ACCESS_WINDOW        0x80 /* EDID/KSV FIFO access window */
+#define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_7_0       0x81 /* DDC bus access frequency control (LSB) */
+#define HDMI_DDC_BUS_ACCESS_FREQ_CTRL_15_8      0x82 /* DDC bus access frequency control (MSB) */
+#define HDMI_INTERRUPT_MASK_1                   0x92 /* Interrupt mask.1 */
+#define HDMI_INTERRUPT_MASK_2                   0x93 /* Interrupt mask.2 */
+#define HDMI_INTERRUPT_STATUS_1                 0x94 /* Interrupt status.1 */
+#define HDMI_INTERRUPT_STATUS_2                 0x95 /* Interrupt status.2 */
+#define HDMI_INTERRUPT_MASK_3                   0x96 /* Interrupt mask.3 */
+#define HDMI_INTERRUPT_MASK_4                   0x97 /* Interrupt mask.4 */
+#define HDMI_INTERRUPT_STATUS_3                 0x98 /* Interrupt status.3 */
+#define HDMI_INTERRUPT_STATUS_4                 0x99 /* Interrupt status.4 */
+#define HDMI_SOFTWARE_HDCP_CONTROL_1            0x9A /* Software HDCP control.1 */
+#define HDMI_FRAME_COUNTER                      0x9C /* Frame counter */
+#define HDMI_FRAME_COUNTER_FOR_RI_CHECK         0x9D /* Frame counter for Ri check */
+#define HDMI_HDCP_CONTROL                       0xAF /* HDCP control */
+#define HDMI_RI_FRAME_COUNT_REGISTER            0xB2 /* Ri frame count register */
+#define HDMI_DDC_BUS_CONTROL                    0xB7 /* DDC bus control */
+#define HDMI_HDCP_STATUS                        0xB8 /* HDCP status */
+#define HDMI_SHA0                               0xB9 /* sha0 */
+#define HDMI_SHA1                               0xBA /* sha1 */
+#define HDMI_SHA2                               0xBB /* sha2 */
+#define HDMI_SHA3                               0xBC /* sha3 */
+#define HDMI_SHA4                               0xBD /* sha4 */
+#define HDMI_BCAPS_READ                         0xBE /* BCAPS read / debug */
+#define HDMI_AKSV_BKSV_7_0_MONITOR              0xBF /* AKSV/BKSV[7:0] monitor */
+#define HDMI_AKSV_BKSV_15_8_MONITOR             0xC0 /* AKSV/BKSV[15:8] monitor */
+#define HDMI_AKSV_BKSV_23_16_MONITOR            0xC1 /* AKSV/BKSV[23:16] monitor */
+#define HDMI_AKSV_BKSV_31_24_MONITOR            0xC2 /* AKSV/BKSV[31:24] monitor */
+#define HDMI_AKSV_BKSV_39_32_MONITOR            0xC3 /* AKSV/BKSV[39:32] monitor */
+#define HDMI_EDID_SEGMENT_POINTER               0xC4 /* EDID segment pointer */
+#define HDMI_EDID_WORD_ADDRESS                  0xC5 /* EDID word address */
+#define HDMI_EDID_DATA_FIFO_ADDRESS             0xC6 /* EDID data FIFO address */
+#define HDMI_NUM_OF_HDMI_DEVICES                0xC7 /* Number of HDMI devices */
+#define HDMI_HDCP_ERROR_CODE                    0xC8 /* HDCP error code */
+#define HDMI_100MS_TIMER_SET                    0xC9 /* 100ms timer setting */
+#define HDMI_5SEC_TIMER_SET                     0xCA /* 5sec timer setting */
+#define HDMI_RI_READ_COUNT                      0xCB /* Ri read count */
+#define HDMI_AN_SEED                            0xCC /* An seed */
+#define HDMI_MAX_NUM_OF_RCIVRS_ALLOWED          0xCD /* Maximum number of receivers allowed */
+#define HDMI_HDCP_MEMORY_ACCESS_CONTROL_1       0xCE /* HDCP memory access control.1 */
+#define HDMI_HDCP_MEMORY_ACCESS_CONTROL_2       0xCF /* HDCP memory access control.2 */
+#define HDMI_HDCP_CONTROL_2                     0xD0 /* HDCP Control 2 */
+#define HDMI_HDCP_KEY_MEMORY_CONTROL            0xD2 /* HDCP Key Memory Control */
+#define HDMI_COLOR_SPACE_CONV_CONFIG_1          0xD3 /* Color space conversion configuration.1 */
+#define HDMI_VIDEO_SETTING_3                    0xD4 /* Video setting.3 */
+#define HDMI_RI_7_0                             0xD5 /* Ri[7:0] */
+#define HDMI_RI_15_8                            0xD6 /* Ri[15:8] */
+#define HDMI_PJ                                 0xD7 /* Pj */
+#define HDMI_SHA_RD                             0xD8 /* sha_rd */
+#define HDMI_RI_7_0_SAVED                       0xD9 /* Ri[7:0] saved */
+#define HDMI_RI_15_8_SAVED                      0xDA /* Ri[15:8] saved */
+#define HDMI_PJ_SAVED                           0xDB /* Pj saved */
+#define HDMI_NUM_OF_DEVICES                     0xDC /* Number of devices */
+#define HDMI_HOT_PLUG_MSENS_STATUS              0xDF /* Hot plug/MSENS status */
+#define HDMI_BCAPS_WRITE                        0xE0 /* bcaps */
+#define HDMI_BSTAT_7_0                          0xE1 /* bstat[7:0] */
+#define HDMI_BSTAT_15_8                         0xE2 /* bstat[15:8] */
+#define HDMI_BKSV_7_0                           0xE3 /* bksv[7:0] */
+#define HDMI_BKSV_15_8                          0xE4 /* bksv[15:8] */
+#define HDMI_BKSV_23_16                         0xE5 /* bksv[23:16] */
+#define HDMI_BKSV_31_24                         0xE6 /* bksv[31:24] */
+#define HDMI_BKSV_39_32                         0xE7 /* bksv[39:32] */
+#define HDMI_AN_7_0                             0xE8 /* An[7:0] */
+#define HDMI_AN_15_8                            0xE9 /* An [15:8] */
+#define HDMI_AN_23_16                           0xEA /* An [23:16] */
+#define HDMI_AN_31_24                           0xEB /* An [31:24] */
+#define HDMI_AN_39_32                           0xEC /* An [39:32] */
+#define HDMI_AN_47_40                           0xED /* An [47:40] */
+#define HDMI_AN_55_48                           0xEE /* An [55:48] */
+#define HDMI_AN_63_56                           0xEF /* An [63:56] */
+#define HDMI_PRODUCT_ID                         0xF0 /* Product ID */
+#define HDMI_REVISION_ID                        0xF1 /* Revision ID */
+#define HDMI_TEST_MODE                          0xFE /* Test mode */
+
+enum hotplug_state {
+        HDMI_HOTPLUG_DISCONNECTED,
+        HDMI_HOTPLUG_CONNECTED,
+        HDMI_HOTPLUG_EDID_DONE,
+};
+
+struct sh_hdmi {
+        void __iomem *base;
+        enum hotplug_state hp_state;
+        struct clk *hdmi_clk;
+        struct device *dev;
+        struct fb_info *info;
+        struct delayed_work edid_work;
+        struct fb_var_screeninfo var;
+};
+
+static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg)
+{
+        iowrite8(data, hdmi->base + reg);
+}
+
+static u8 hdmi_read(struct sh_hdmi *hdmi, u8 reg)
+{
+        return ioread8(hdmi->base + reg);
+}
+
+/* External video parameter settings */
+static void hdmi_external_video_param(struct sh_hdmi *hdmi)
+{
+        struct fb_var_screeninfo *var = &hdmi->var;
+        u16 htotal, hblank, hdelay, vtotal, vblank, vdelay, voffset;
+        u8 sync = 0;
+
+        htotal = var->xres + var->right_margin + var->left_margin + var->hsync_len;
+
+        hdelay = var->hsync_len + var->left_margin;
+        hblank = var->right_margin + hdelay;
+
+        /*
+         * Vertical timing looks a bit different in Figure 18,
+         * but let's try the same first by setting offset = 0
+         */
+        vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
+
+        vdelay = var->vsync_len + var->upper_margin;
+        vblank = var->lower_margin + vdelay;
+        voffset = min(var->upper_margin / 2, 6U);
+
+        /*
+         * [3]: VSYNC polarity: Positive
+         * [2]: HSYNC polarity: Positive
+         * [1]: Interlace/Progressive: Progressive
+         * [0]: External video settings enable: used.
+         */
+        if (var->sync & FB_SYNC_HOR_HIGH_ACT)
+                sync |= 4;
+        if (var->sync & FB_SYNC_VERT_HIGH_ACT)
+                sync |= 8;
+
+        pr_debug("H: %u, %u, %u, %u; V: %u, %u, %u, %u; sync 0x%x\n",
+                 htotal, hblank, hdelay, var->hsync_len,
+                 vtotal, vblank, vdelay, var->vsync_len, sync);
+
+        hdmi_write(hdmi, sync | (voffset << 4), HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
+
+        hdmi_write(hdmi, htotal, HDMI_EXTERNAL_H_TOTAL_7_0);
+        hdmi_write(hdmi, htotal >> 8, HDMI_EXTERNAL_H_TOTAL_11_8);
+
+        hdmi_write(hdmi, hblank, HDMI_EXTERNAL_H_BLANK_7_0);
+        hdmi_write(hdmi, hblank >> 8, HDMI_EXTERNAL_H_BLANK_9_8);
+
+        hdmi_write(hdmi, hdelay, HDMI_EXTERNAL_H_DELAY_7_0);
+        hdmi_write(hdmi, hdelay >> 8, HDMI_EXTERNAL_H_DELAY_9_8);
+
+        hdmi_write(hdmi, var->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0);
+        hdmi_write(hdmi, var->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8);
+
+        hdmi_write(hdmi, vtotal, HDMI_EXTERNAL_V_TOTAL_7_0);
+        hdmi_write(hdmi, vtotal >> 8, HDMI_EXTERNAL_V_TOTAL_9_8);
+
+        hdmi_write(hdmi, vblank, HDMI_EXTERNAL_V_BLANK);
+
+        hdmi_write(hdmi, vdelay, HDMI_EXTERNAL_V_DELAY);
+
+        hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION);
+
+        /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for manual mode */
+}
+
+/**
+ * sh_hdmi_video_config()
+ */
+static void sh_hdmi_video_config(struct sh_hdmi *hdmi)
+{
+        /*
+         * [7:4]: Audio sampling frequency: 48kHz
+         * [3:1]: Input video format: RGB and YCbCr 4:4:4 (Y on Green)
+         * [0]: Internal/External DE select: internal
+         */
+        hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1);
+
+        /*
+         * [7:6]: Video output format: RGB 4:4:4
+         * [5:4]: Input video data width: 8 bit
+         * [3:1]: EAV/SAV location: channel 1
+         * [0]: Video input color space: RGB
+         */
+        hdmi_write(hdmi, 0x34, HDMI_VIDEO_SETTING_1);
+
+        /*
+         * [7:6]: Together with bit [6] of HDMI_AUDIO_VIDEO_SETTING_2, which is
+         * left at 0 by default, this configures 24bpp and sets the Color Depth
+         * (CD) field in the General Control Packet
+         */
+        hdmi_write(hdmi, 0x20, HDMI_DEEP_COLOR_MODES);
+}
+
+/**
+ * sh_hdmi_audio_config()
+ */
+static void sh_hdmi_audio_config(struct sh_hdmi *hdmi)
+{
+        /*
+         * [7:4] L/R data swap control
+         * [3:0] appropriate N[19:16]
+         */
+        hdmi_write(hdmi, 0x00, HDMI_L_R_DATA_SWAP_CTRL_RPKT);
+        /* appropriate N[15:8] */
+        hdmi_write(hdmi, 0x18, HDMI_20_BIT_N_FOR_AUDIO_RPKT_15_8);
+        /* appropriate N[7:0] */
+        hdmi_write(hdmi, 0x00, HDMI_20_BIT_N_FOR_AUDIO_RPKT_7_0);
+
+        /* [7:4] 48 kHz SPDIF not used */
+        hdmi_write(hdmi, 0x20, HDMI_SPDIF_AUDIO_SAMP_FREQ_CTS);
+
+        /*
+         * [6:5] set required down sampling rate if required
+         * [4:3] set required audio source
+         */
+        hdmi_write(hdmi, 0x00, HDMI_AUDIO_SETTING_1);
+
+        /* [3:0] set sending channel number for channel status */
+        hdmi_write(hdmi, 0x40, HDMI_AUDIO_SETTING_2);
+
+        /*
+         * [5:2] set valid I2S source input pin
+         * [1:0] set input I2S source mode
+         */
+        hdmi_write(hdmi, 0x04, HDMI_I2S_AUDIO_SET);
+
+        /* [7:4] set valid DSD source input pin */
+        hdmi_write(hdmi, 0x00, HDMI_DSD_AUDIO_SET);
+
+        /* [7:0] set appropriate I2S input pin swap settings if required */
+        hdmi_write(hdmi, 0x00, HDMI_I2S_INPUT_PIN_SWAP);
+
+        /*
+         * [7] set validity bit for channel status
+         * [3:0] set original sample frequency for channel status
+         */
+        hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_1);
+
+        /*
+         * [7] set value for channel status
+         * [6] set value for channel status
+         * [5] set copyright bit for channel status
+         * [4:2] set additional information for channel status
+         * [1:0] set clock accuracy for channel status
+         */
+        hdmi_write(hdmi, 0x00, HDMI_AUDIO_STATUS_BITS_SETTING_2);
+
+        /* [7:0] set category code for channel status */
+        hdmi_write(hdmi, 0x00, HDMI_CATEGORY_CODE);
+
+        /*
+         * [7:4] set source number for channel status
+         * [3:0] set word length for channel status
+         */
+        hdmi_write(hdmi, 0x00, HDMI_SOURCE_NUM_AUDIO_WORD_LEN);
+
+        /* [7:4] set sample frequency for channel status */
+        hdmi_write(hdmi, 0x20, HDMI_AUDIO_VIDEO_SETTING_1);
+}
+
+/**
+ * sh_hdmi_phy_config()
+ */
+static void sh_hdmi_phy_config(struct sh_hdmi *hdmi)
+{
+        /* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */
+        hdmi_write(hdmi, 0x19, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
+        hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
+        hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_3);
+        /* PLLA_CONFIG[7:0]: VCO gain, VCO offset, LPF resistance[0] */
+        hdmi_write(hdmi, 0x44, HDMI_SLIPHDMIT_PARAM_SETTINGS_5);
+        hdmi_write(hdmi, 0x32, HDMI_SLIPHDMIT_PARAM_SETTINGS_6);
+        hdmi_write(hdmi, 0x4A, HDMI_SLIPHDMIT_PARAM_SETTINGS_7);
+        hdmi_write(hdmi, 0x0E, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
+        hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
+        hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
+}
+
+/**
+ * sh_hdmi_avi_infoframe_setup() - Auxiliary Video Information InfoFrame CONTROL PACKET
+ */
+static void sh_hdmi_avi_infoframe_setup(struct sh_hdmi *hdmi)
+{
+        /* AVI InfoFrame */
+        hdmi_write(hdmi, 0x06, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* Packet Type = 0x82 */
+        hdmi_write(hdmi, 0x82, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+
+        /* Version = 0x02 */
+        hdmi_write(hdmi, 0x02, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+
+        /* Length = 13 (0x0D) */
+        hdmi_write(hdmi, 0x0D, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* N. A. Checksum */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0);
+
+        /*
+         * Y = RGB
+         * A0 = No Data
+         * B = Bar Data not valid
+         * S = No Data
+         */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1);
+
+        /*
+         * C = No Data
+         * M = 16:9 Picture Aspect Ratio
+         * R = Same as picture aspect ratio
+         */
+        hdmi_write(hdmi, 0x28, HDMI_CTRL_PKT_BUF_ACCESS_PB2);
+
+        /*
+         * ITC = No Data
+         * EC = xvYCC601
+         * Q = Default (depends on video format)
+         * SC = No Known non_uniform Scaling
+         */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3);
+
+        /*
+         * VIC = 1280 x 720p: ignored if external config is used
+         * Send 2 for 720 x 480p, 16 for 1080p
+         */
+        hdmi_write(hdmi, 4, HDMI_CTRL_PKT_BUF_ACCESS_PB4);
+
+        /* PR = No Repetition */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5);
+
+        /* Line Number of End of Top Bar (lower 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6);
+
+        /* Line Number of End of Top Bar (upper 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7);
+
+        /* Line Number of Start of Bottom Bar (lower 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8);
+
+        /* Line Number of Start of Bottom Bar (upper 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9);
+
+        /* Pixel Number of End of Left Bar (lower 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10);
+
+        /* Pixel Number of End of Left Bar (upper 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB11);
+
+        /* Pixel Number of Start of Right Bar (lower 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB12);
+
+        /* Pixel Number of Start of Right Bar (upper 8 bits) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB13);
+}
+
+/**
+ * sh_hdmi_audio_infoframe_setup() - Audio InfoFrame of CONTROL PACKET
+ */
+static void sh_hdmi_audio_infoframe_setup(struct sh_hdmi *hdmi)
+{
+        /* Audio InfoFrame */
+        hdmi_write(hdmi, 0x08, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* Packet Type = 0x84 */
+        hdmi_write(hdmi, 0x84, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+
+        /* Version Number = 0x01 */
+        hdmi_write(hdmi, 0x01, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+
+        /* 0 Length = 10 (0x0A) */
+        hdmi_write(hdmi, 0x0A, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* n. a. Checksum */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0);
+
+        /* Audio Channel Count = Refer to Stream Header */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB1);
+
+        /* Refer to Stream Header */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB2);
+
+        /* Format depends on coding type (i.e. CT0...CT3) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB3);
+
+        /* Speaker Channel Allocation = Front Right + Front Left */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB4);
+
+        /* Level Shift Value = 0 dB, Down - mix is permitted or no information */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB5);
+
+        /* Reserved (0) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB6);
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB7);
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB8);
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB9);
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB10);
+}
+
+/**
+ * sh_hdmi_gamut_metadata_setup() - Gamut Metadata Packet of CONTROL PACKET
+ */
+static void sh_hdmi_gamut_metadata_setup(struct sh_hdmi *hdmi)
+{
+        int i;
+
+        /* Gamut Metadata Packet */
+        hdmi_write(hdmi, 0x04, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* Packet Type = 0x0A */
+        hdmi_write(hdmi, 0x0A, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+        /* Gamut Packet is not used, so default value */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+        /* Gamut Packet is not used, so default value */
+        hdmi_write(hdmi, 0x10, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* GBD bytes 0 through 27 */
+        for (i = 0; i <= 27; i++)
+                /* HDMI_CTRL_PKT_BUF_ACCESS_PB0_63H - PB27_7EH */
+                hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0 + i);
+}
+
+/**
+ * sh_hdmi_acp_setup() - Audio Content Protection Packet (ACP)
+ */
+static void sh_hdmi_acp_setup(struct sh_hdmi *hdmi)
+{
+        int i;
+
+        /* Audio Content Protection Packet (ACP) */
+        hdmi_write(hdmi, 0x01, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* Packet Type = 0x04 */
+        hdmi_write(hdmi, 0x04, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+        /* ACP_Type */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+        /* Reserved (0) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* GBD bytes 0 through 27 */
+        for (i = 0; i <= 27; i++)
+                /* HDMI_CTRL_PKT_BUF_ACCESS_PB0 - PB27 */
+                hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0 + i);
+}
+
+/**
+ * sh_hdmi_isrc1_setup() - ISRC1 Packet
+ */
+static void sh_hdmi_isrc1_setup(struct sh_hdmi *hdmi)
+{
+        int i;
+
+        /* ISRC1 Packet */
+        hdmi_write(hdmi, 0x02, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* Packet Type = 0x05 */
+        hdmi_write(hdmi, 0x05, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+        /* ISRC_Cont, ISRC_Valid, Reserved (0), ISRC_Status */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+        /* Reserved (0) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* PB0 UPC_EAN_ISRC_0-15 */
+        /* Bytes PB16-PB27 shall be set to a value of 0. */
+        for (i = 0; i <= 27; i++)
+                /* HDMI_CTRL_PKT_BUF_ACCESS_PB0 - PB27 */
+                hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0 + i);
+}
+
+/**
+ * sh_hdmi_isrc2_setup() - ISRC2 Packet
+ */
+static void sh_hdmi_isrc2_setup(struct sh_hdmi *hdmi)
+{
+        int i;
+
+        /* ISRC2 Packet */
+        hdmi_write(hdmi, 0x03, HDMI_CTRL_PKT_BUF_INDEX);
+
+        /* HB0 Packet Type = 0x06 */
+        hdmi_write(hdmi, 0x06, HDMI_CTRL_PKT_BUF_ACCESS_HB0);
+        /* Reserved (0) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB1);
+        /* Reserved (0) */
+        hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_HB2);
+
+        /* PB0 UPC_EAN_ISRC_16-31 */
+        /* Bytes PB16-PB27 shall be set to a value of 0. */
+        for (i = 0; i <= 27; i++)
+                /* HDMI_CTRL_PKT_BUF_ACCESS_PB0 - PB27 */
+                hdmi_write(hdmi, 0x00, HDMI_CTRL_PKT_BUF_ACCESS_PB0 + i);
+}
+
+/**
+ * sh_hdmi_configure() - Initialise HDMI for output
+ */
+static void sh_hdmi_configure(struct sh_hdmi *hdmi)
+{
+        /* Configure video format */
+        sh_hdmi_video_config(hdmi);
+
+        /* Configure audio format */
+        sh_hdmi_audio_config(hdmi);
+
+        /* Configure PHY */
+        sh_hdmi_phy_config(hdmi);
+
+        /* Auxiliary Video Information (AVI) InfoFrame */
+        sh_hdmi_avi_infoframe_setup(hdmi);
+
+        /* Audio InfoFrame */
+        sh_hdmi_audio_infoframe_setup(hdmi);
+
+        /* Gamut Metadata packet */
+        sh_hdmi_gamut_metadata_setup(hdmi);
+
+        /* Audio Content Protection (ACP) Packet */
+        sh_hdmi_acp_setup(hdmi);
+
+        /* ISRC1 Packet */
+        sh_hdmi_isrc1_setup(hdmi);
+
+        /* ISRC2 Packet */
+        sh_hdmi_isrc2_setup(hdmi);
+
+        /*
+         * Control packet auto send with VSYNC control: auto send
+         * General control, Gamut metadata, ISRC, and ACP packets
+         */
+        hdmi_write(hdmi, 0x8E, HDMI_CTRL_PKT_AUTO_SEND);
+
+        /* FIXME */
+        msleep(10);
+
+        /* PS mode b->d, reset PLLA and PLLB */
+        hdmi_write(hdmi, 0x4C, HDMI_SYSTEM_CTRL);
+
+        udelay(10);
+
+        hdmi_write(hdmi, 0x40, HDMI_SYSTEM_CTRL);
+}
+
+static void sh_hdmi_read_edid(struct sh_hdmi *hdmi)
+{
+        struct fb_var_screeninfo *var = &hdmi->var;
+        struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+        struct fb_videomode *lcd_cfg = &pdata->lcd_chan->lcd_cfg;
+        unsigned long height = var->height, width = var->width;
+        int i;
+        u8 edid[128];
+
+        /* Read EDID */
+        pr_debug("Read back EDID code:");
+        for (i = 0; i < 128; i++) {
+                edid[i] = hdmi_read(hdmi, HDMI_EDID_KSV_FIFO_ACCESS_WINDOW);
+#ifdef DEBUG
+                if ((i % 16) == 0) {
+                        printk(KERN_CONT "\n");
+                        printk(KERN_DEBUG "%02X | %02X", i, edid[i]);
+                } else {
+                        printk(KERN_CONT " %02X", edid[i]);
+                }
+#endif
+        }
+#ifdef DEBUG
+        printk(KERN_CONT "\n");
+#endif
+        fb_parse_edid(edid, var);
+        pr_debug("%u-%u-%u-%u x %u-%u-%u-%u @ %lu kHz monitor detected\n",
+                 var->left_margin, var->xres, var->right_margin, var->hsync_len,
+                 var->upper_margin, var->yres, var->lower_margin, var->vsync_len,
+                 PICOS2KHZ(var->pixclock));
+
+        /* FIXME: Use user-provided configuration instead of EDID */
+        var->width              = width;
+        var->xres               = lcd_cfg->xres;
+        var->xres_virtual       = lcd_cfg->xres;
+        var->left_margin        = lcd_cfg->left_margin;
+        var->right_margin       = lcd_cfg->right_margin;
+        var->hsync_len          = lcd_cfg->hsync_len;
+        var->height             = height;
+        var->yres               = lcd_cfg->yres;
+        var->yres_virtual       = lcd_cfg->yres * 2;
+        var->upper_margin       = lcd_cfg->upper_margin;
+        var->lower_margin       = lcd_cfg->lower_margin;
+        var->vsync_len          = lcd_cfg->vsync_len;
+        var->sync               = lcd_cfg->sync;
+        var->pixclock           = lcd_cfg->pixclock;
+
+        hdmi_external_video_param(hdmi);
+}
+
+static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id)
+{
+        struct sh_hdmi *hdmi = dev_id;
+        u8 status1, status2, mask1, mask2;
+
+        /* mode_b and PLLA and PLLB reset */
+        hdmi_write(hdmi, 0x2C, HDMI_SYSTEM_CTRL);
+
+        /* How long shall reset be held? */
+        udelay(10);
+
+        /* mode_b and PLLA and PLLB reset release */
+        hdmi_write(hdmi, 0x20, HDMI_SYSTEM_CTRL);
+
+        status1 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_1);
+        status2 = hdmi_read(hdmi, HDMI_INTERRUPT_STATUS_2);
+
+        mask1 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_1);
+        mask2 = hdmi_read(hdmi, HDMI_INTERRUPT_MASK_2);
+
+        /* Correct would be to ack only set bits, but the datasheet requires 0xff */
+        hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_1);
+        hdmi_write(hdmi, 0xFF, HDMI_INTERRUPT_STATUS_2);
+
+        if (printk_ratelimit())
+                pr_debug("IRQ #%d: Status #1: 0x%x & 0x%x, #2: 0x%x & 0x%x\n",
+                         irq, status1, mask1, status2, mask2);
+
+        if (!((status1 & mask1) | (status2 & mask2))) {
+                return IRQ_NONE;
+        } else if (status1 & 0xc0) {
+                u8 msens;
+
+                /* Datasheet specifies 10ms... */
+                udelay(500);
+
+                msens = hdmi_read(hdmi, HDMI_HOT_PLUG_MSENS_STATUS);
+                pr_debug("MSENS 0x%x\n", msens);
+                /* Check, if hot plug & MSENS pin status are both high */
+                if ((msens & 0xC0) == 0xC0) {
+                        /* Display plug in */
+                        hdmi->hp_state = HDMI_HOTPLUG_CONNECTED;
+
+                        /* Set EDID word address  */
+                        hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS);
+                        /* Set EDID segment pointer */
+                        hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
+                        /* Enable EDID interrupt */
+                        hdmi_write(hdmi, 0xC6, HDMI_INTERRUPT_MASK_1);
+                } else if (!(status1 & 0x80)) {
+                        /* Display unplug, beware multiple interrupts */
+                        if (hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED)
+                                schedule_delayed_work(&hdmi->edid_work, 0);
+
+                        hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
+                        /* display_off will switch back to mode_a */
+                }
+        } else if (status1 & 2) {
+                /* EDID error interrupt: retry */
+                /* Set EDID word address  */
+                hdmi_write(hdmi, 0x00, HDMI_EDID_WORD_ADDRESS);
+                /* Set EDID segment pointer */
+                hdmi_write(hdmi, 0x00, HDMI_EDID_SEGMENT_POINTER);
+        } else if (status1 & 4) {
+                /* Disable EDID interrupt */
+                hdmi_write(hdmi, 0xC0, HDMI_INTERRUPT_MASK_1);
+                hdmi->hp_state = HDMI_HOTPLUG_EDID_DONE;
+                schedule_delayed_work(&hdmi->edid_work, msecs_to_jiffies(10));
+        }
+
+        return IRQ_HANDLED;
+}
+
+static void hdmi_display_on(void *arg, struct fb_info *info)
+{
+        struct sh_hdmi *hdmi = arg;
+        struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+
+        if (info->var.xres != 1280 || info->var.yres != 720) {
+                dev_warn(info->device, "Unsupported framebuffer geometry %ux%u\n",
+                         info->var.xres, info->var.yres);
+                return;
+        }
+
+        pr_debug("%s(%p): state %x\n", __func__, pdata->lcd_dev, info->state);
+        /*
+         * FIXME: not a good place to store fb_info. And we cannot nullify it
+         * even on monitor disconnect. What should the lifecycle be?
+         */
+        hdmi->info = info;
+        switch (hdmi->hp_state) {
+        case HDMI_HOTPLUG_EDID_DONE:
+                /* PS mode d->e. All functions are active */
+                hdmi_write(hdmi, 0x80, HDMI_SYSTEM_CTRL);
+                pr_debug("HDMI running\n");
+                break;
+        case HDMI_HOTPLUG_DISCONNECTED:
+                info->state = FBINFO_STATE_SUSPENDED;
+        default:
+                hdmi->var = info->var;
+        }
+}
+
+static void hdmi_display_off(void *arg)
+{
+        struct sh_hdmi *hdmi = arg;
+        struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+
+        pr_debug("%s(%p)\n", __func__, pdata->lcd_dev);
+        /* PS mode e->a */
+        hdmi_write(hdmi, 0x10, HDMI_SYSTEM_CTRL);
+}
+
+/* Hotplug interrupt occurred, read EDID */
+static void edid_work_fn(struct work_struct *work)
+{
+        struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work);
+        struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+
+        pr_debug("%s(%p): begin, hotplug status %d\n", __func__,
+                 pdata->lcd_dev, hdmi->hp_state);
+
+        if (!pdata->lcd_dev)
+                return;
+
+        if (hdmi->hp_state == HDMI_HOTPLUG_EDID_DONE) {
+                pm_runtime_get_sync(hdmi->dev);
+                /* A device has been plugged in */
+                sh_hdmi_read_edid(hdmi);
+                msleep(10);
+                sh_hdmi_configure(hdmi);
+                /* Switched to another (d) power-save mode */
+                msleep(10);
+
+                if (!hdmi->info)
+                        return;
+
+                acquire_console_sem();
+
+                /* HDMI plug in */
+                hdmi->info->var = hdmi->var;
+                if (hdmi->info->state != FBINFO_STATE_RUNNING)
+                        fb_set_suspend(hdmi->info, 0);
+                else
+                        hdmi_display_on(hdmi, hdmi->info);
+
+                release_console_sem();
+        } else {
+                if (!hdmi->info)
+                        return;
+
+                acquire_console_sem();
+
+                /* HDMI disconnect */
+                fb_set_suspend(hdmi->info, 1);
+
+                release_console_sem();
+                pm_runtime_put(hdmi->dev);
+        }
+
+        pr_debug("%s(%p): end\n", __func__, pdata->lcd_dev);
+}
+
+static int __init sh_hdmi_probe(struct platform_device *pdev)
+{
+        struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data;
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        int irq = platform_get_irq(pdev, 0), ret;
+        struct sh_hdmi *hdmi;
+        long rate;
+
+        if (!res || !pdata || irq < 0)
+                return -ENODEV;
+
+        hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
+        if (!hdmi) {
+                dev_err(&pdev->dev, "Cannot allocate device data\n");
+                return -ENOMEM;
+        }
+
+        hdmi->dev = &pdev->dev;
+
+        hdmi->hdmi_clk = clk_get(&pdev->dev, "ick");
+        if (IS_ERR(hdmi->hdmi_clk)) {
+                ret = PTR_ERR(hdmi->hdmi_clk);
+                dev_err(&pdev->dev, "Unable to get clock: %d\n", ret);
+                goto egetclk;
+        }
+
+        rate = PICOS2KHZ(pdata->lcd_chan->lcd_cfg.pixclock) * 1000;
+
+        rate = clk_round_rate(hdmi->hdmi_clk, rate);
+        if (rate < 0) {
+                ret = rate;
+                dev_err(&pdev->dev, "Cannot get suitable rate: %ld\n", rate);
+                goto erate;
+        }
+
+        ret = clk_set_rate(hdmi->hdmi_clk, rate);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Cannot set rate %ld: %d\n", rate, ret);
+                goto erate;
+        }
+
+        pr_debug("HDMI set frequency %lu\n", rate);
+
+        ret = clk_enable(hdmi->hdmi_clk);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Cannot enable clock: %d\n", ret);
+                goto eclkenable;
+        }
+
+        dev_info(&pdev->dev, "Enabled HDMI clock at %luHz\n", rate);
+
+        if (!request_mem_region(res->start, resource_size(res), dev_name(&pdev->dev))) {
+                dev_err(&pdev->dev, "HDMI register region already claimed\n");
+                ret = -EBUSY;
+                goto ereqreg;
+        }
+
+        hdmi->base = ioremap(res->start, resource_size(res));
+        if (!hdmi->base) {
+                dev_err(&pdev->dev, "HDMI register region already claimed\n");
+                ret = -ENOMEM;
+                goto emap;
+        }
+
+        platform_set_drvdata(pdev, hdmi);
+
+#if 1
+        /* Product and revision IDs are 0 in sh-mobile version */
+        dev_info(&pdev->dev, "Detected HDMI controller 0x%x:0x%x\n",
+                 hdmi_read(hdmi, HDMI_PRODUCT_ID), hdmi_read(hdmi, HDMI_REVISION_ID));
+#endif
+
+        /* Set up LCDC callbacks */
+        pdata->lcd_chan->board_cfg.board_data = hdmi;
+        pdata->lcd_chan->board_cfg.display_on = hdmi_display_on;
+        pdata->lcd_chan->board_cfg.display_off = hdmi_display_off;
+
+        INIT_DELAYED_WORK(&hdmi->edid_work, edid_work_fn);
+
+        pm_runtime_enable(&pdev->dev);
+        pm_runtime_resume(&pdev->dev);
+
+        ret = request_irq(irq, sh_hdmi_hotplug, 0,
+                          dev_name(&pdev->dev), hdmi);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Unable to request irq: %d\n", ret);
+                goto ereqirq;
+        }
+
+        return 0;
+
+ereqirq:
+        pm_runtime_disable(&pdev->dev);
+        iounmap(hdmi->base);
+emap:
+        release_mem_region(res->start, resource_size(res));
+ereqreg:
+        clk_disable(hdmi->hdmi_clk);
+eclkenable:
+erate:
+        clk_put(hdmi->hdmi_clk);
+egetclk:
+        kfree(hdmi);
+
+        return ret;
+}
+
+static int __exit sh_hdmi_remove(struct platform_device *pdev)
+{
+        struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data;
+        struct sh_hdmi *hdmi = platform_get_drvdata(pdev);
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        int irq = platform_get_irq(pdev, 0);
+
+        pdata->lcd_chan->board_cfg.display_on = NULL;
+        pdata->lcd_chan->board_cfg.display_off = NULL;
+        pdata->lcd_chan->board_cfg.board_data = NULL;
+
+        free_irq(irq, hdmi);
+        pm_runtime_disable(&pdev->dev);
+        cancel_delayed_work_sync(&hdmi->edid_work);
+        clk_disable(hdmi->hdmi_clk);
+        clk_put(hdmi->hdmi_clk);
+        iounmap(hdmi->base);
+        release_mem_region(res->start, resource_size(res));
+        kfree(hdmi);
+
+        return 0;
+}
+
+static struct platform_driver sh_hdmi_driver = {
+        .remove         = __exit_p(sh_hdmi_remove),
+        .driver = {
+                .name   = "sh-mobile-hdmi",
+        },
+};
+
+static int __init sh_hdmi_init(void)
+{
+        return platform_driver_probe(&sh_hdmi_driver, sh_hdmi_probe);
+}
+module_init(sh_hdmi_init);
+
+static void __exit sh_hdmi_exit(void)
+{
+        platform_driver_unregister(&sh_hdmi_driver);
+}
+module_exit(sh_hdmi_exit);
+
+MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
+MODULE_DESCRIPTION("SuperH / ARM-shmobile HDMI driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index b9e6f93642d2..d72075a9f01c 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -56,6 +56,7 @@ static int lcdc_shared_regs[] = {
 /* per-channel registers */
 enum { LDDCKPAT1R, LDDCKPAT2R, LDMT1R, LDMT2R, LDMT3R, LDDFR, LDSM1R,
        LDSM2R, LDSA1R, LDMLSR, LDHCNR, LDHSYNR, LDVLNR, LDVSYNR, LDPMR,
+       LDHAJR,
        NR_CH_REGS };
 
 static unsigned long lcdc_offs_mainlcd[NR_CH_REGS] = {
@@ -74,6 +75,7 @@ static unsigned long lcdc_offs_mainlcd[NR_CH_REGS] = {
         [LDVLNR] = 0x450,
         [LDVSYNR] = 0x454,
         [LDPMR] = 0x460,
+        [LDHAJR] = 0x4a0,
 };
 
 static unsigned long lcdc_offs_sublcd[NR_CH_REGS] = {
@@ -137,6 +139,7 @@ struct sh_mobile_lcdc_priv {
         struct clk *dot_clk;
         unsigned long lddckr;
         struct sh_mobile_lcdc_chan ch[2];
+        struct notifier_block notifier;
         unsigned long saved_shared_regs[NR_SHARED_REGS];
         int started;
 };
@@ -404,6 +407,56 @@ static void sh_mobile_lcdc_start_stop(struct sh_mobile_lcdc_priv *priv,
                 lcdc_write(priv, _LDDCKSTPR, 1); /* stop dotclock */
 }
 
+static void sh_mobile_lcdc_geometry(struct sh_mobile_lcdc_chan *ch)
+{
+        struct fb_var_screeninfo *var = &ch->info->var;
+        unsigned long h_total, hsync_pos;
+        u32 tmp;
+
+        tmp = ch->ldmt1r_value;
+        tmp |= (var->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 1 << 28;
+        tmp |= (var->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 1 << 27;
+        tmp |= (ch->cfg.flags & LCDC_FLAGS_DWPOL) ? 1 << 26 : 0;
+        tmp |= (ch->cfg.flags & LCDC_FLAGS_DIPOL) ? 1 << 25 : 0;
+        tmp |= (ch->cfg.flags & LCDC_FLAGS_DAPOL) ? 1 << 24 : 0;
+        tmp |= (ch->cfg.flags & LCDC_FLAGS_HSCNT) ? 1 << 17 : 0;
+        tmp |= (ch->cfg.flags & LCDC_FLAGS_DWCNT) ? 1 << 16 : 0;
+        lcdc_write_chan(ch, LDMT1R, tmp);
+
+        /* setup SYS bus */
+        lcdc_write_chan(ch, LDMT2R, ch->cfg.sys_bus_cfg.ldmt2r);
+        lcdc_write_chan(ch, LDMT3R, ch->cfg.sys_bus_cfg.ldmt3r);
+
+        /* horizontal configuration */
+        h_total = var->xres + var->hsync_len +
+                var->left_margin + var->right_margin;
+        tmp = h_total / 8; /* HTCN */
+        tmp |= (var->xres / 8) << 16; /* HDCN */
+        lcdc_write_chan(ch, LDHCNR, tmp);
+
+        hsync_pos = var->xres + var->right_margin;
+        tmp = hsync_pos / 8; /* HSYNP */
+        tmp |= (var->hsync_len / 8) << 16; /* HSYNW */
+        lcdc_write_chan(ch, LDHSYNR, tmp);
+
+        /* vertical configuration */
+        tmp = var->yres + var->vsync_len +
+                var->upper_margin + var->lower_margin; /* VTLN */
+        tmp |= var->yres << 16; /* VDLN */
+        lcdc_write_chan(ch, LDVLNR, tmp);
+
+        tmp = var->yres + var->lower_margin; /* VSYNP */
+        tmp |= var->vsync_len << 16; /* VSYNW */
+        lcdc_write_chan(ch, LDVSYNR, tmp);
+
+        /* Adjust horizontal synchronisation for HDMI */
+        tmp = ((var->xres & 7) << 24) |
+                ((h_total & 7) << 16) |
+                ((var->hsync_len & 7) << 8) |
+                hsync_pos;
+        lcdc_write_chan(ch, LDHAJR, tmp);
+}
+
 static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
 {
         struct sh_mobile_lcdc_chan *ch;
@@ -470,49 +523,11 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                 if (!ch->enabled)
                         continue;
 
-                tmp = ch->ldmt1r_value;
-                tmp |= (lcd_cfg->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 1 << 28;
-                tmp |= (lcd_cfg->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 1 << 27;
-                tmp |= (ch->cfg.flags & LCDC_FLAGS_DWPOL) ? 1 << 26 : 0;
-                tmp |= (ch->cfg.flags & LCDC_FLAGS_DIPOL) ? 1 << 25 : 0;
-                tmp |= (ch->cfg.flags & LCDC_FLAGS_DAPOL) ? 1 << 24 : 0;
-                tmp |= (ch->cfg.flags & LCDC_FLAGS_HSCNT) ? 1 << 17 : 0;
-                tmp |= (ch->cfg.flags & LCDC_FLAGS_DWCNT) ? 1 << 16 : 0;
-                lcdc_write_chan(ch, LDMT1R, tmp);
-
-                /* setup SYS bus */
-                lcdc_write_chan(ch, LDMT2R, ch->cfg.sys_bus_cfg.ldmt2r);
-                lcdc_write_chan(ch, LDMT3R, ch->cfg.sys_bus_cfg.ldmt3r);
-
-                /* horizontal configuration */
-                tmp = lcd_cfg->xres + lcd_cfg->hsync_len;
-                tmp += lcd_cfg->left_margin;
-                tmp += lcd_cfg->right_margin;
-                tmp /= 8; /* HTCN */
-                tmp |= (lcd_cfg->xres / 8) << 16; /* HDCN */
-                lcdc_write_chan(ch, LDHCNR, tmp);
-
-                tmp = lcd_cfg->xres;
-                tmp += lcd_cfg->right_margin;
-                tmp /= 8; /* HSYNP */
-                tmp |= (lcd_cfg->hsync_len / 8) << 16; /* HSYNW */
-                lcdc_write_chan(ch, LDHSYNR, tmp);
+                sh_mobile_lcdc_geometry(ch);
 
                 /* power supply */
                 lcdc_write_chan(ch, LDPMR, 0);
 
-                /* vertical configuration */
-                tmp = lcd_cfg->yres + lcd_cfg->vsync_len;
-                tmp += lcd_cfg->upper_margin;
-                tmp += lcd_cfg->lower_margin; /* VTLN */
-                tmp |= lcd_cfg->yres << 16; /* VDLN */
-                lcdc_write_chan(ch, LDVLNR, tmp);
-
-                tmp = lcd_cfg->yres;
-                tmp += lcd_cfg->lower_margin; /* VSYNP */
-                tmp |= lcd_cfg->vsync_len << 16; /* VSYNW */
-                lcdc_write_chan(ch, LDVSYNR, tmp);
-
                 board_cfg = &ch->cfg.board_cfg;
                 if (board_cfg->setup_sys)
                         ret = board_cfg->setup_sys(board_cfg->board_data, ch,
@@ -943,6 +958,62 @@ static const struct dev_pm_ops sh_mobile_lcdc_dev_pm_ops = {
         .runtime_resume = sh_mobile_lcdc_runtime_resume,
 };
 
+static int sh_mobile_lcdc_notify(struct notifier_block *nb,
+                                 unsigned long action, void *data)
+{
+        struct fb_event *event = data;
+        struct fb_info *info = event->info;
+        struct sh_mobile_lcdc_chan *ch = info->par;
+        struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg;
+        struct fb_var_screeninfo *var;
+
+        if (&ch->lcdc->notifier != nb)
+                return 0;
+
+        dev_dbg(info->dev, "%s(): action = %lu, data = %p\n",
+                __func__, action, event->data);
+
+        switch(action) {
+        case FB_EVENT_SUSPEND:
+                if (board_cfg->display_off)
+                        board_cfg->display_off(board_cfg->board_data);
+                pm_runtime_put(info->device);
+                break;
+        case FB_EVENT_RESUME:
+                var = &info->var;
+
+                /* HDMI must be enabled before LCDC configuration */
+                if (board_cfg->display_on)
+                        board_cfg->display_on(board_cfg->board_data, ch->info);
+
+                /* Check if the new display is not in our modelist */
+                if (ch->info->modelist.next &&
+                    !fb_match_mode(var, &ch->info->modelist)) {
+                        struct fb_videomode mode;
+                        int ret;
+
+                        /* Can we handle this display? */
+                        if (var->xres > ch->cfg.lcd_cfg.xres ||
+                            var->yres > ch->cfg.lcd_cfg.yres)
+                                return -ENOMEM;
+
+                        /* Add to the modelist */
+                        fb_var_to_videomode(&mode, var);
+                        ret = fb_add_videomode(&mode, &ch->info->modelist);
+                        if (ret < 0)
+                                return ret;
+                }
+
+                pm_runtime_get_sync(info->device);
+
+                sh_mobile_lcdc_geometry(ch);
+
+                break;
+        }
+
+        return 0;
+}
+
 static int sh_mobile_lcdc_remove(struct platform_device *pdev);
 
 static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
@@ -1031,6 +1102,8 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
         }
 
         for (i = 0; i < j; i++) {
+                struct fb_var_screeninfo *var;
+                struct fb_videomode *lcd_cfg;
                 cfg = &priv->ch[i].cfg;
 
                 priv->ch[i].info = framebuffer_alloc(0, &pdev->dev);
@@ -1041,22 +1114,33 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
                 }
 
                 info = priv->ch[i].info;
+                var = &info->var;
+                lcd_cfg = &cfg->lcd_cfg;
                 info->fbops = &sh_mobile_lcdc_ops;
-                info->var.xres = info->var.xres_virtual = cfg->lcd_cfg.xres;
-                info->var.yres = cfg->lcd_cfg.yres;
+                var->xres = var->xres_virtual = lcd_cfg->xres;
+                var->yres = lcd_cfg->yres;
                 /* Default Y virtual resolution is 2x panel size */
-                info->var.yres_virtual = info->var.yres * 2;
-                info->var.width = cfg->lcd_size_cfg.width;
-                info->var.height = cfg->lcd_size_cfg.height;
-                info->var.activate = FB_ACTIVATE_NOW;
-                error = sh_mobile_lcdc_set_bpp(&info->var, cfg->bpp);
+                var->yres_virtual = var->yres * 2;
+                var->width = cfg->lcd_size_cfg.width;
+                var->height = cfg->lcd_size_cfg.height;
+                var->activate = FB_ACTIVATE_NOW;
+                var->left_margin = lcd_cfg->left_margin;
+                var->right_margin = lcd_cfg->right_margin;
+                var->upper_margin = lcd_cfg->upper_margin;
+                var->lower_margin = lcd_cfg->lower_margin;
+                var->hsync_len = lcd_cfg->hsync_len;
+                var->vsync_len = lcd_cfg->vsync_len;
+                var->sync = lcd_cfg->sync;
+                var->pixclock = lcd_cfg->pixclock;
+
+                error = sh_mobile_lcdc_set_bpp(var, cfg->bpp);
                 if (error)
                         break;
 
                 info->fix = sh_mobile_lcdc_fix;
-                info->fix.line_length = cfg->lcd_cfg.xres * (cfg->bpp / 8);
+                info->fix.line_length = lcd_cfg->xres * (cfg->bpp / 8);
                 info->fix.smem_len = info->fix.line_length *
-                        info->var.yres_virtual;
+                        var->yres_virtual;
 
                 buf = dma_alloc_coherent(&pdev->dev, info->fix.smem_len,
                                          &priv->ch[i].dma_handle, GFP_KERNEL);
@@ -1121,10 +1205,14 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
                          ch->cfg.bpp);
 
                 /* deferred io mode: disable clock to save power */
-                if (info->fbdefio)
+                if (info->fbdefio || info->state == FBINFO_STATE_SUSPENDED)
                         sh_mobile_lcdc_clk_off(priv);
         }
 
+        /* Failure ignored */
+        priv->notifier.notifier_call = sh_mobile_lcdc_notify;
+        fb_register_client(&priv->notifier);
+
         return 0;
 err1:
         sh_mobile_lcdc_remove(pdev);
@@ -1138,6 +1226,8 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
         struct fb_info *info;
         int i;
 
+        fb_unregister_client(&priv->notifier);
+
         for (i = 0; i < ARRAY_SIZE(priv->ch); i++)
                 if (priv->ch[i].info && priv->ch[i].info->dev)
                         unregister_framebuffer(priv->ch[i].info);