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path: root/drivers/gpu/drm/exynos/exynos_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_hdmi.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_hdmi.c1176
1 files changed, 1176 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
new file mode 100644
index 00000000000..3429d3fd93f
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -0,0 +1,1176 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@samsung.com>
+ * Inki Dae <inki.dae@samsung.com>
+ * Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on drivers/media/video/s5p-tv/hdmi_drv.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+#include "drm_edid.h"
+#include "drm_crtc_helper.h"
+
+#include "regs-hdmi.h"
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_hdmi.h"
+
+#include "exynos_hdmi.h"
+
+#define HDMI_OVERLAY_NUMBER 3
+#define get_hdmi_context(dev) platform_get_drvdata(to_platform_device(dev))
+
+static const u8 hdmiphy_conf27[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+ 0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf27_027[32] = {
+ 0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
+ 0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_175[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
+ 0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_25[32] = {
+ 0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
+ 0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
+ 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xe0,
+ 0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf148_5[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
+ 0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
+ 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00,
+};
+
+struct hdmi_tg_regs {
+ u8 cmd;
+ u8 h_fsz_l;
+ u8 h_fsz_h;
+ u8 hact_st_l;
+ u8 hact_st_h;
+ u8 hact_sz_l;
+ u8 hact_sz_h;
+ u8 v_fsz_l;
+ u8 v_fsz_h;
+ u8 vsync_l;
+ u8 vsync_h;
+ u8 vsync2_l;
+ u8 vsync2_h;
+ u8 vact_st_l;
+ u8 vact_st_h;
+ u8 vact_sz_l;
+ u8 vact_sz_h;
+ u8 field_chg_l;
+ u8 field_chg_h;
+ u8 vact_st2_l;
+ u8 vact_st2_h;
+ u8 vsync_top_hdmi_l;
+ u8 vsync_top_hdmi_h;
+ u8 vsync_bot_hdmi_l;
+ u8 vsync_bot_hdmi_h;
+ u8 field_top_hdmi_l;
+ u8 field_top_hdmi_h;
+ u8 field_bot_hdmi_l;
+ u8 field_bot_hdmi_h;
+};
+
+struct hdmi_core_regs {
+ u8 h_blank[2];
+ u8 v_blank[3];
+ u8 h_v_line[3];
+ u8 vsync_pol[1];
+ u8 int_pro_mode[1];
+ u8 v_blank_f[3];
+ u8 h_sync_gen[3];
+ u8 v_sync_gen1[3];
+ u8 v_sync_gen2[3];
+ u8 v_sync_gen3[3];
+};
+
+struct hdmi_preset_conf {
+ struct hdmi_core_regs core;
+ struct hdmi_tg_regs tg;
+};
+
+static const struct hdmi_preset_conf hdmi_conf_480p = {
+ .core = {
+ .h_blank = {0x8a, 0x00},
+ .v_blank = {0x0d, 0x6a, 0x01},
+ .h_v_line = {0x0d, 0xa2, 0x35},
+ .vsync_pol = {0x01},
+ .int_pro_mode = {0x00},
+ .v_blank_f = {0x00, 0x00, 0x00},
+ .h_sync_gen = {0x0e, 0x30, 0x11},
+ .v_sync_gen1 = {0x0f, 0x90, 0x00},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x5a, 0x03, /* h_fsz */
+ 0x8a, 0x00, 0xd0, 0x02, /* hact */
+ 0x0d, 0x02, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x2d, 0x00, 0xe0, 0x01, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x49, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_preset_conf hdmi_conf_720p60 = {
+ .core = {
+ .h_blank = {0x72, 0x01},
+ .v_blank = {0xee, 0xf2, 0x00},
+ .h_v_line = {0xee, 0x22, 0x67},
+ .vsync_pol = {0x00},
+ .int_pro_mode = {0x00},
+ .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+ .h_sync_gen = {0x6c, 0x50, 0x02},
+ .v_sync_gen1 = {0x0a, 0x50, 0x00},
+ .v_sync_gen2 = {0x01, 0x10, 0x00},
+ .v_sync_gen3 = {0x01, 0x10, 0x00},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x72, 0x06, /* h_fsz */
+ 0x71, 0x01, 0x01, 0x05, /* hact */
+ 0xee, 0x02, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x1e, 0x00, 0xd0, 0x02, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x49, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080i50 = {
+ .core = {
+ .h_blank = {0xd0, 0x02},
+ .v_blank = {0x32, 0xB2, 0x00},
+ .h_v_line = {0x65, 0x04, 0xa5},
+ .vsync_pol = {0x00},
+ .int_pro_mode = {0x01},
+ .v_blank_f = {0x49, 0x2A, 0x23},
+ .h_sync_gen = {0x0E, 0xEA, 0x08},
+ .v_sync_gen1 = {0x07, 0x20, 0x00},
+ .v_sync_gen2 = {0x39, 0x42, 0x23},
+ .v_sync_gen3 = {0x38, 0x87, 0x73},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x50, 0x0A, /* h_fsz */
+ 0xCF, 0x02, 0x81, 0x07, /* hact */
+ 0x65, 0x04, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x16, 0x00, 0x1c, 0x02, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x49, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080p50 = {
+ .core = {
+ .h_blank = {0xd0, 0x02},
+ .v_blank = {0x65, 0x6c, 0x01},
+ .h_v_line = {0x65, 0x04, 0xa5},
+ .vsync_pol = {0x00},
+ .int_pro_mode = {0x00},
+ .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+ .h_sync_gen = {0x0e, 0xea, 0x08},
+ .v_sync_gen1 = {0x09, 0x40, 0x00},
+ .v_sync_gen2 = {0x01, 0x10, 0x00},
+ .v_sync_gen3 = {0x01, 0x10, 0x00},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x50, 0x0A, /* h_fsz */
+ 0xCF, 0x02, 0x81, 0x07, /* hact */
+ 0x65, 0x04, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x2d, 0x00, 0x38, 0x04, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x48, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080i60 = {
+ .core = {
+ .h_blank = {0x18, 0x01},
+ .v_blank = {0x32, 0xB2, 0x00},
+ .h_v_line = {0x65, 0x84, 0x89},
+ .vsync_pol = {0x00},
+ .int_pro_mode = {0x01},
+ .v_blank_f = {0x49, 0x2A, 0x23},
+ .h_sync_gen = {0x56, 0x08, 0x02},
+ .v_sync_gen1 = {0x07, 0x20, 0x00},
+ .v_sync_gen2 = {0x39, 0x42, 0x23},
+ .v_sync_gen3 = {0xa4, 0x44, 0x4a},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x98, 0x08, /* h_fsz */
+ 0x17, 0x01, 0x81, 0x07, /* hact */
+ 0x65, 0x04, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x16, 0x00, 0x1c, 0x02, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x49, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080p60 = {
+ .core = {
+ .h_blank = {0x18, 0x01},
+ .v_blank = {0x65, 0x6c, 0x01},
+ .h_v_line = {0x65, 0x84, 0x89},
+ .vsync_pol = {0x00},
+ .int_pro_mode = {0x00},
+ .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+ .h_sync_gen = {0x56, 0x08, 0x02},
+ .v_sync_gen1 = {0x09, 0x40, 0x00},
+ .v_sync_gen2 = {0x01, 0x10, 0x00},
+ .v_sync_gen3 = {0x01, 0x10, 0x00},
+ /* other don't care */
+ },
+ .tg = {
+ 0x00, /* cmd */
+ 0x98, 0x08, /* h_fsz */
+ 0x17, 0x01, 0x81, 0x07, /* hact */
+ 0x65, 0x04, /* v_fsz */
+ 0x01, 0x00, 0x33, 0x02, /* vsync */
+ 0x2d, 0x00, 0x38, 0x04, /* vact */
+ 0x33, 0x02, /* field_chg */
+ 0x48, 0x02, /* vact_st2 */
+ 0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+ 0x01, 0x00, 0x33, 0x02, /* field top/bot */
+ },
+};
+
+static const struct hdmi_conf hdmi_confs[] = {
+ { 1280, 720, 60, false, hdmiphy_conf74_25, &hdmi_conf_720p60 },
+ { 1280, 720, 50, false, hdmiphy_conf74_25, &hdmi_conf_720p60 },
+ { 720, 480, 60, false, hdmiphy_conf27_027, &hdmi_conf_480p },
+ { 1920, 1080, 50, true, hdmiphy_conf74_25, &hdmi_conf_1080i50 },
+ { 1920, 1080, 50, false, hdmiphy_conf148_5, &hdmi_conf_1080p50 },
+ { 1920, 1080, 60, true, hdmiphy_conf74_25, &hdmi_conf_1080i60 },
+ { 1920, 1080, 60, false, hdmiphy_conf148_5, &hdmi_conf_1080p60 },
+};
+
+
+static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
+{
+ return readl(hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writeb(struct hdmi_context *hdata,
+ u32 reg_id, u8 value)
+{
+ writeb(value, hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
+ u32 reg_id, u32 value, u32 mask)
+{
+ u32 old = readl(hdata->regs + reg_id);
+ value = (value & mask) | (old & ~mask);
+ writel(value, hdata->regs + reg_id);
+}
+
+static void hdmi_regs_dump(struct hdmi_context *hdata, char *prefix)
+{
+#define DUMPREG(reg_id) \
+ DRM_DEBUG_KMS("%s:" #reg_id " = %08x\n", prefix, \
+ readl(hdata->regs + reg_id))
+ DRM_DEBUG_KMS("%s: ---- CONTROL REGISTERS ----\n", prefix);
+ DUMPREG(HDMI_INTC_FLAG);
+ DUMPREG(HDMI_INTC_CON);
+ DUMPREG(HDMI_HPD_STATUS);
+ DUMPREG(HDMI_PHY_RSTOUT);
+ DUMPREG(HDMI_PHY_VPLL);
+ DUMPREG(HDMI_PHY_CMU);
+ DUMPREG(HDMI_CORE_RSTOUT);
+
+ DRM_DEBUG_KMS("%s: ---- CORE REGISTERS ----\n", prefix);
+ DUMPREG(HDMI_CON_0);
+ DUMPREG(HDMI_CON_1);
+ DUMPREG(HDMI_CON_2);
+ DUMPREG(HDMI_SYS_STATUS);
+ DUMPREG(HDMI_PHY_STATUS);
+ DUMPREG(HDMI_STATUS_EN);
+ DUMPREG(HDMI_HPD);
+ DUMPREG(HDMI_MODE_SEL);
+ DUMPREG(HDMI_HPD_GEN);
+ DUMPREG(HDMI_DC_CONTROL);
+ DUMPREG(HDMI_VIDEO_PATTERN_GEN);
+
+ DRM_DEBUG_KMS("%s: ---- CORE SYNC REGISTERS ----\n", prefix);
+ DUMPREG(HDMI_H_BLANK_0);
+ DUMPREG(HDMI_H_BLANK_1);
+ DUMPREG(HDMI_V_BLANK_0);
+ DUMPREG(HDMI_V_BLANK_1);
+ DUMPREG(HDMI_V_BLANK_2);
+ DUMPREG(HDMI_H_V_LINE_0);
+ DUMPREG(HDMI_H_V_LINE_1);
+ DUMPREG(HDMI_H_V_LINE_2);
+ DUMPREG(HDMI_VSYNC_POL);
+ DUMPREG(HDMI_INT_PRO_MODE);
+ DUMPREG(HDMI_V_BLANK_F_0);
+ DUMPREG(HDMI_V_BLANK_F_1);
+ DUMPREG(HDMI_V_BLANK_F_2);
+ DUMPREG(HDMI_H_SYNC_GEN_0);
+ DUMPREG(HDMI_H_SYNC_GEN_1);
+ DUMPREG(HDMI_H_SYNC_GEN_2);
+ DUMPREG(HDMI_V_SYNC_GEN_1_0);
+ DUMPREG(HDMI_V_SYNC_GEN_1_1);
+ DUMPREG(HDMI_V_SYNC_GEN_1_2);
+ DUMPREG(HDMI_V_SYNC_GEN_2_0);
+ DUMPREG(HDMI_V_SYNC_GEN_2_1);
+ DUMPREG(HDMI_V_SYNC_GEN_2_2);
+ DUMPREG(HDMI_V_SYNC_GEN_3_0);
+ DUMPREG(HDMI_V_SYNC_GEN_3_1);
+ DUMPREG(HDMI_V_SYNC_GEN_3_2);
+
+ DRM_DEBUG_KMS("%s: ---- TG REGISTERS ----\n", prefix);
+ DUMPREG(HDMI_TG_CMD);
+ DUMPREG(HDMI_TG_H_FSZ_L);
+ DUMPREG(HDMI_TG_H_FSZ_H);
+ DUMPREG(HDMI_TG_HACT_ST_L);
+ DUMPREG(HDMI_TG_HACT_ST_H);
+ DUMPREG(HDMI_TG_HACT_SZ_L);
+ DUMPREG(HDMI_TG_HACT_SZ_H);
+ DUMPREG(HDMI_TG_V_FSZ_L);
+ DUMPREG(HDMI_TG_V_FSZ_H);
+ DUMPREG(HDMI_TG_VSYNC_L);
+ DUMPREG(HDMI_TG_VSYNC_H);
+ DUMPREG(HDMI_TG_VSYNC2_L);
+ DUMPREG(HDMI_TG_VSYNC2_H);
+ DUMPREG(HDMI_TG_VACT_ST_L);
+ DUMPREG(HDMI_TG_VACT_ST_H);
+ DUMPREG(HDMI_TG_VACT_SZ_L);
+ DUMPREG(HDMI_TG_VACT_SZ_H);
+ DUMPREG(HDMI_TG_FIELD_CHG_L);
+ DUMPREG(HDMI_TG_FIELD_CHG_H);
+ DUMPREG(HDMI_TG_VACT_ST2_L);
+ DUMPREG(HDMI_TG_VACT_ST2_H);
+ DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L);
+ DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H);
+ DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L);
+ DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H);
+ DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L);
+ DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H);
+ DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L);
+ DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H);
+#undef DUMPREG
+}
+
+static int hdmi_conf_index(struct drm_display_mode *mode)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hdmi_confs); ++i)
+ if (hdmi_confs[i].width == mode->hdisplay &&
+ hdmi_confs[i].height == mode->vdisplay &&
+ hdmi_confs[i].vrefresh == mode->vrefresh &&
+ hdmi_confs[i].interlace ==
+ ((mode->flags & DRM_MODE_FLAG_INTERLACE) ?
+ true : false))
+ return i;
+
+ return -1;
+}
+
+static bool hdmi_is_connected(void *ctx)
+{
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+ u32 val = hdmi_reg_read(hdata, HDMI_HPD_STATUS);
+
+ if (val)
+ return true;
+
+ return false;
+}
+
+static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
+ u8 *edid, int len)
+{
+ struct edid *raw_edid;
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (!hdata->ddc_port)
+ return -ENODEV;
+
+ raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter);
+ if (raw_edid) {
+ memcpy(edid, raw_edid, min((1 + raw_edid->extensions)
+ * EDID_LENGTH, len));
+ DRM_DEBUG_KMS("width[%d] x height[%d]\n",
+ raw_edid->width_cm, raw_edid->height_cm);
+ } else {
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int hdmi_check_timing(void *ctx, void *timing)
+{
+ struct fb_videomode *check_timing = timing;
+ int i;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ DRM_DEBUG_KMS("[%d]x[%d] [%d]Hz [%x]\n", check_timing->xres,
+ check_timing->yres, check_timing->refresh,
+ check_timing->vmode);
+
+ for (i = 0; i < ARRAY_SIZE(hdmi_confs); ++i)
+ if (hdmi_confs[i].width == check_timing->xres &&
+ hdmi_confs[i].height == check_timing->yres &&
+ hdmi_confs[i].vrefresh == check_timing->refresh &&
+ hdmi_confs[i].interlace ==
+ ((check_timing->vmode & FB_VMODE_INTERLACED) ?
+ true : false))
+ return 0;
+
+ return -EINVAL;
+}
+
+static int hdmi_display_power_on(void *ctx, int mode)
+{
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ DRM_DEBUG_KMS("hdmi [on]\n");
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ break;
+ case DRM_MODE_DPMS_SUSPEND:
+ break;
+ case DRM_MODE_DPMS_OFF:
+ DRM_DEBUG_KMS("hdmi [off]\n");
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static struct exynos_hdmi_display_ops display_ops = {
+ .is_connected = hdmi_is_connected,
+ .get_edid = hdmi_get_edid,
+ .check_timing = hdmi_check_timing,
+ .power_on = hdmi_display_power_on,
+};
+
+static void hdmi_conf_reset(struct hdmi_context *hdata)
+{
+ /* disable hpd handle for drm */
+ hdata->hpd_handle = false;
+
+ /* resetting HDMI core */
+ hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, 0, HDMI_CORE_SW_RSTOUT);
+ mdelay(10);
+ hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, ~0, HDMI_CORE_SW_RSTOUT);
+ mdelay(10);
+
+ /* enable hpd handle for drm */
+ hdata->hpd_handle = true;
+}
+
+static void hdmi_conf_init(struct hdmi_context *hdata)
+{
+ /* disable hpd handle for drm */
+ hdata->hpd_handle = false;
+
+ /* enable HPD interrupts */
+ hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
+ HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
+ mdelay(10);
+ hdmi_reg_writemask(hdata, HDMI_INTC_CON, ~0, HDMI_INTC_EN_GLOBAL |
+ HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
+
+ /* choose HDMI mode */
+ hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
+ HDMI_MODE_HDMI_EN, HDMI_MODE_MASK);
+ /* disable bluescreen */
+ hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
+ /* choose bluescreen (fecal) color */
+ hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_0, 0x12);
+ hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_1, 0x34);
+ hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_2, 0x56);
+ /* enable AVI packet every vsync, fixes purple line problem */
+ hdmi_reg_writeb(hdata, HDMI_AVI_CON, 0x02);
+ /* force RGB, look to CEA-861-D, table 7 for more detail */
+ hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(0), 0 << 5);
+ hdmi_reg_writemask(hdata, HDMI_CON_1, 0x10 << 5, 0x11 << 5);
+
+ hdmi_reg_writeb(hdata, HDMI_SPD_CON, 0x02);
+ hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
+ hdmi_reg_writeb(hdata, HDMI_ACR_CON, 0x04);
+
+ /* enable hpd handle for drm */
+ hdata->hpd_handle = true;
+}
+
+static void hdmi_timing_apply(struct hdmi_context *hdata,
+ const struct hdmi_preset_conf *conf)
+{
+ const struct hdmi_core_regs *core = &conf->core;
+ const struct hdmi_tg_regs *tg = &conf->tg;
+ int tries;
+
+ /* setting core registers */
+ hdmi_reg_writeb(hdata, HDMI_H_BLANK_0, core->h_blank[0]);
+ hdmi_reg_writeb(hdata, HDMI_H_BLANK_1, core->h_blank[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_0, core->v_blank[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_1, core->v_blank[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_2, core->v_blank[2]);
+ hdmi_reg_writeb(hdata, HDMI_H_V_LINE_0, core->h_v_line[0]);
+ hdmi_reg_writeb(hdata, HDMI_H_V_LINE_1, core->h_v_line[1]);
+ hdmi_reg_writeb(hdata, HDMI_H_V_LINE_2, core->h_v_line[2]);
+ hdmi_reg_writeb(hdata, HDMI_VSYNC_POL, core->vsync_pol[0]);
+ hdmi_reg_writeb(hdata, HDMI_INT_PRO_MODE, core->int_pro_mode[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_0, core->v_blank_f[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_1, core->v_blank_f[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_2, core->v_blank_f[2]);
+ hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_0, core->h_sync_gen[0]);
+ hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_1, core->h_sync_gen[1]);
+ hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_2, core->h_sync_gen[2]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_0, core->v_sync_gen1[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_1, core->v_sync_gen1[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_2, core->v_sync_gen1[2]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_0, core->v_sync_gen2[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_1, core->v_sync_gen2[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_2, core->v_sync_gen2[2]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_0, core->v_sync_gen3[0]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_1, core->v_sync_gen3[1]);
+ hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_2, core->v_sync_gen3[2]);
+ /* Timing generator registers */
+ hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_L, tg->h_fsz_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_H, tg->h_fsz_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_L, tg->hact_st_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_H, tg->hact_st_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_L, tg->hact_sz_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_H, tg->hact_sz_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_L, tg->v_fsz_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_H, tg->v_fsz_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_L, tg->vsync_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_H, tg->vsync_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_L, tg->vsync2_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_H, tg->vsync2_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_L, tg->vact_st_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_H, tg->vact_st_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_L, tg->vact_sz_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_H, tg->vact_sz_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_L, tg->field_chg_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_H, tg->field_chg_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_L, tg->vact_st2_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_H, tg->vact_st2_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_L, tg->vsync_top_hdmi_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_H, tg->vsync_top_hdmi_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, tg->vsync_bot_hdmi_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_H, tg->vsync_bot_hdmi_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_L, tg->field_top_hdmi_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_H, tg->field_top_hdmi_h);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_L, tg->field_bot_hdmi_l);
+ hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_H, tg->field_bot_hdmi_h);
+
+ /* waiting for HDMIPHY's PLL to get to steady state */
+ for (tries = 100; tries; --tries) {
+ u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS);
+ if (val & HDMI_PHY_STATUS_READY)
+ break;
+ mdelay(1);
+ }
+ /* steady state not achieved */
+ if (tries == 0) {
+ DRM_ERROR("hdmiphy's pll could not reach steady state.\n");
+ hdmi_regs_dump(hdata, "timing apply");
+ }
+
+ clk_disable(hdata->res.sclk_hdmi);
+ clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_hdmiphy);
+ clk_enable(hdata->res.sclk_hdmi);
+
+ /* enable HDMI and timing generator */
+ hdmi_reg_writemask(hdata, HDMI_CON_0, ~0, HDMI_EN);
+ if (core->int_pro_mode[0])
+ hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN |
+ HDMI_FIELD_EN);
+ else
+ hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN);
+}
+
+static void hdmiphy_conf_reset(struct hdmi_context *hdata)
+{
+ u8 buffer[2];
+
+ clk_disable(hdata->res.sclk_hdmi);
+ clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_pixel);
+ clk_enable(hdata->res.sclk_hdmi);
+
+ /* operation mode */
+ buffer[0] = 0x1f;
+ buffer[1] = 0x00;
+
+ if (hdata->hdmiphy_port)
+ i2c_master_send(hdata->hdmiphy_port, buffer, 2);
+
+ /* reset hdmiphy */
+ hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);
+ mdelay(10);
+ hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT);
+ mdelay(10);
+}
+
+static void hdmiphy_conf_apply(struct hdmi_context *hdata)
+{
+ u8 buffer[32];
+ u8 operation[2];
+ u8 read_buffer[32] = {0, };
+ int ret;
+ int i;
+
+ if (!hdata->hdmiphy_port) {
+ DRM_ERROR("hdmiphy is not attached\n");
+ return;
+ }
+
+ /* pixel clock */
+ memcpy(buffer, hdmi_confs[hdata->cur_conf].hdmiphy_data, 32);
+ ret = i2c_master_send(hdata->hdmiphy_port, buffer, 32);
+ if (ret != 32) {
+ DRM_ERROR("failed to configure HDMIPHY via I2C\n");
+ return;
+ }
+
+ mdelay(10);
+
+ /* operation mode */
+ operation[0] = 0x1f;
+ operation[1] = 0x80;
+
+ ret = i2c_master_send(hdata->hdmiphy_port, operation, 2);
+ if (ret != 2) {
+ DRM_ERROR("failed to enable hdmiphy\n");
+ return;
+ }
+
+ ret = i2c_master_recv(hdata->hdmiphy_port, read_buffer, 32);
+ if (ret < 0) {
+ DRM_ERROR("failed to read hdmiphy config\n");
+ return;
+ }
+
+ for (i = 0; i < ret; i++)
+ DRM_DEBUG_KMS("hdmiphy[0x%02x] write[0x%02x] - "
+ "recv [0x%02x]\n", i, buffer[i], read_buffer[i]);
+}
+
+static void hdmi_conf_apply(struct hdmi_context *hdata)
+{
+ const struct hdmi_preset_conf *conf =
+ hdmi_confs[hdata->cur_conf].conf;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ hdmiphy_conf_reset(hdata);
+ hdmiphy_conf_apply(hdata);
+
+ hdmi_conf_reset(hdata);
+ hdmi_conf_init(hdata);
+
+ /* setting core registers */
+ hdmi_timing_apply(hdata, conf);
+
+ hdmi_regs_dump(hdata, "start");
+}
+
+static void hdmi_mode_set(void *ctx, void *mode)
+{
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+ int conf_idx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ conf_idx = hdmi_conf_index(mode);
+ if (conf_idx >= 0 && conf_idx < ARRAY_SIZE(hdmi_confs))
+ hdata->cur_conf = conf_idx;
+ else
+ DRM_DEBUG_KMS("not supported mode\n");
+}
+
+static void hdmi_commit(void *ctx)
+{
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ hdmi_conf_apply(hdata);
+
+ hdata->enabled = true;
+}
+
+static void hdmi_disable(void *ctx)
+{
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ if (hdata->enabled) {
+ hdmiphy_conf_reset(hdata);
+ hdmi_conf_reset(hdata);
+ }
+}
+
+static struct exynos_hdmi_manager_ops manager_ops = {
+ .mode_set = hdmi_mode_set,
+ .commit = hdmi_commit,
+ .disable = hdmi_disable,
+};
+
+/*
+ * Handle hotplug events outside the interrupt handler proper.
+ */
+static void hdmi_hotplug_func(struct work_struct *work)
+{
+ struct hdmi_context *hdata =
+ container_of(work, struct hdmi_context, hotplug_work);
+ struct exynos_drm_hdmi_context *ctx =
+ (struct exynos_drm_hdmi_context *)hdata->parent_ctx;
+
+ drm_helper_hpd_irq_event(ctx->drm_dev);
+}
+
+static irqreturn_t hdmi_irq_handler(int irq, void *arg)
+{
+ struct exynos_drm_hdmi_context *ctx = arg;
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx;
+ u32 intc_flag;
+
+ intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG);
+ /* clearing flags for HPD plug/unplug */
+ if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) {
+ DRM_DEBUG_KMS("unplugged, handling:%d\n", hdata->hpd_handle);
+ hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
+ HDMI_INTC_FLAG_HPD_UNPLUG);
+ }
+ if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) {
+ DRM_DEBUG_KMS("plugged, handling:%d\n", hdata->hpd_handle);
+ hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
+ HDMI_INTC_FLAG_HPD_PLUG);
+ }
+
+ if (ctx->drm_dev && hdata->hpd_handle)
+ queue_work(hdata->wq, &hdata->hotplug_work);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit hdmi_resources_init(struct hdmi_context *hdata)
+{
+ struct device *dev = hdata->dev;
+ struct hdmi_resources *res = &hdata->res;
+ static char *supply[] = {
+ "hdmi-en",
+ "vdd",
+ "vdd_osc",
+ "vdd_pll",
+ };
+ int i, ret;
+
+ DRM_DEBUG_KMS("HDMI resource init\n");
+
+ memset(res, 0, sizeof *res);
+
+ /* get clocks, power */
+ res->hdmi = clk_get(dev, "hdmi");
+ if (IS_ERR_OR_NULL(res->hdmi)) {
+ DRM_ERROR("failed to get clock 'hdmi'\n");
+ goto fail;
+ }
+ res->sclk_hdmi = clk_get(dev, "sclk_hdmi");
+ if (IS_ERR_OR_NULL(res->sclk_hdmi)) {
+ DRM_ERROR("failed to get clock 'sclk_hdmi'\n");
+ goto fail;
+ }
+ res->sclk_pixel = clk_get(dev, "sclk_pixel");
+ if (IS_ERR_OR_NULL(res->sclk_pixel)) {
+ DRM_ERROR("failed to get clock 'sclk_pixel'\n");
+ goto fail;
+ }
+ res->sclk_hdmiphy = clk_get(dev, "sclk_hdmiphy");
+ if (IS_ERR_OR_NULL(res->sclk_hdmiphy)) {
+ DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n");
+ goto fail;
+ }
+ res->hdmiphy = clk_get(dev, "hdmiphy");
+ if (IS_ERR_OR_NULL(res->hdmiphy)) {
+ DRM_ERROR("failed to get clock 'hdmiphy'\n");
+ goto fail;
+ }
+
+ clk_set_parent(res->sclk_hdmi, res->sclk_pixel);
+
+ res->regul_bulk = kzalloc(ARRAY_SIZE(supply) *
+ sizeof res->regul_bulk[0], GFP_KERNEL);
+ if (!res->regul_bulk) {
+ DRM_ERROR("failed to get memory for regulators\n");
+ goto fail;
+ }
+ for (i = 0; i < ARRAY_SIZE(supply); ++i) {
+ res->regul_bulk[i].supply = supply[i];
+ res->regul_bulk[i].consumer = NULL;
+ }
+ ret = regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk);
+ if (ret) {
+ DRM_ERROR("failed to get regulators\n");
+ goto fail;
+ }
+ res->regul_count = ARRAY_SIZE(supply);
+
+ return 0;
+fail:
+ DRM_ERROR("HDMI resource init - failed\n");
+ return -ENODEV;
+}
+
+static int hdmi_resources_cleanup(struct hdmi_context *hdata)
+{
+ struct hdmi_resources *res = &hdata->res;
+
+ regulator_bulk_free(res->regul_count, res->regul_bulk);
+ /* kfree is NULL-safe */
+ kfree(res->regul_bulk);
+ if (!IS_ERR_OR_NULL(res->hdmiphy))
+ clk_put(res->hdmiphy);
+ if (!IS_ERR_OR_NULL(res->sclk_hdmiphy))
+ clk_put(res->sclk_hdmiphy);
+ if (!IS_ERR_OR_NULL(res->sclk_pixel))
+ clk_put(res->sclk_pixel);
+ if (!IS_ERR_OR_NULL(res->sclk_hdmi))
+ clk_put(res->sclk_hdmi);
+ if (!IS_ERR_OR_NULL(res->hdmi))
+ clk_put(res->hdmi);
+ memset(res, 0, sizeof *res);
+
+ return 0;
+}
+
+static void hdmi_resource_poweron(struct hdmi_context *hdata)
+{
+ struct hdmi_resources *res = &hdata->res;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ /* turn HDMI power on */
+ regulator_bulk_enable(res->regul_count, res->regul_bulk);
+ /* power-on hdmi physical interface */
+ clk_enable(res->hdmiphy);
+ /* turn clocks on */
+ clk_enable(res->hdmi);
+ clk_enable(res->sclk_hdmi);
+
+ hdmiphy_conf_reset(hdata);
+ hdmi_conf_reset(hdata);
+ hdmi_conf_init(hdata);
+
+}
+
+static void hdmi_resource_poweroff(struct hdmi_context *hdata)
+{
+ struct hdmi_resources *res = &hdata->res;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ /* turn clocks off */
+ clk_disable(res->sclk_hdmi);
+ clk_disable(res->hdmi);
+ /* power-off hdmiphy */
+ clk_disable(res->hdmiphy);
+ /* turn HDMI power off */
+ regulator_bulk_disable(res->regul_count, res->regul_bulk);
+}
+
+static int hdmi_runtime_suspend(struct device *dev)
+{
+ struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ hdmi_resource_poweroff((struct hdmi_context *)ctx->ctx);
+
+ return 0;
+}
+
+static int hdmi_runtime_resume(struct device *dev)
+{
+ struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ hdmi_resource_poweron((struct hdmi_context *)ctx->ctx);
+
+ return 0;
+}
+
+static const struct dev_pm_ops hdmi_pm_ops = {
+ .runtime_suspend = hdmi_runtime_suspend,
+ .runtime_resume = hdmi_runtime_resume,
+};
+
+static struct i2c_client *hdmi_ddc, *hdmi_hdmiphy;
+
+void hdmi_attach_ddc_client(struct i2c_client *ddc)
+{
+ if (ddc)
+ hdmi_ddc = ddc;
+}
+EXPORT_SYMBOL(hdmi_attach_ddc_client);
+
+void hdmi_attach_hdmiphy_client(struct i2c_client *hdmiphy)
+{
+ if (hdmiphy)
+ hdmi_hdmiphy = hdmiphy;
+}
+EXPORT_SYMBOL(hdmi_attach_hdmiphy_client);
+
+static int __devinit hdmi_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct exynos_drm_hdmi_context *drm_hdmi_ctx;
+ struct hdmi_context *hdata;
+ struct exynos_drm_hdmi_pdata *pdata;
+ struct resource *res;
+ int ret;
+
+ DRM_DEBUG_KMS("[%d]\n", __LINE__);
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ DRM_ERROR("no platform data specified\n");
+ return -EINVAL;
+ }
+
+ drm_hdmi_ctx = kzalloc(sizeof(*drm_hdmi_ctx), GFP_KERNEL);
+ if (!drm_hdmi_ctx) {
+ DRM_ERROR("failed to allocate common hdmi context.\n");
+ return -ENOMEM;
+ }
+
+ hdata = kzalloc(sizeof(struct hdmi_context), GFP_KERNEL);
+ if (!hdata) {
+ DRM_ERROR("out of memory\n");
+ kfree(drm_hdmi_ctx);
+ return -ENOMEM;
+ }
+
+ drm_hdmi_ctx->ctx = (void *)hdata;
+ hdata->parent_ctx = (void *)drm_hdmi_ctx;
+
+ platform_set_drvdata(pdev, drm_hdmi_ctx);
+
+ hdata->default_win = pdata->default_win;
+ hdata->default_timing = &pdata->timing;
+ hdata->default_bpp = pdata->bpp;
+ hdata->dev = dev;
+
+ ret = hdmi_resources_init(hdata);
+ if (ret) {
+ ret = -EINVAL;
+ goto err_data;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ DRM_ERROR("failed to find registers\n");
+ ret = -ENOENT;
+ goto err_resource;
+ }
+
+ hdata->regs_res = request_mem_region(res->start, resource_size(res),
+ dev_name(dev));
+ if (!hdata->regs_res) {
+ DRM_ERROR("failed to claim register region\n");
+ ret = -ENOENT;
+ goto err_resource;
+ }
+
+ hdata->regs = ioremap(res->start, resource_size(res));
+ if (!hdata->regs) {
+ DRM_ERROR("failed to map registers\n");
+ ret = -ENXIO;
+ goto err_req_region;
+ }
+
+ /* DDC i2c driver */
+ if (i2c_add_driver(&ddc_driver)) {
+ DRM_ERROR("failed to register ddc i2c driver\n");
+ ret = -ENOENT;
+ goto err_iomap;
+ }
+
+ hdata->ddc_port = hdmi_ddc;
+
+ /* hdmiphy i2c driver */
+ if (i2c_add_driver(&hdmiphy_driver)) {
+ DRM_ERROR("failed to register hdmiphy i2c driver\n");
+ ret = -ENOENT;
+ goto err_ddc;
+ }
+
+ hdata->hdmiphy_port = hdmi_hdmiphy;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res == NULL) {
+ DRM_ERROR("get interrupt resource failed.\n");
+ ret = -ENXIO;
+ goto err_hdmiphy;
+ }
+
+ /* create workqueue and hotplug work */
+ hdata->wq = alloc_workqueue("exynos-drm-hdmi",
+ WQ_UNBOUND | WQ_NON_REENTRANT, 1);
+ if (hdata->wq == NULL) {
+ DRM_ERROR("Failed to create workqueue.\n");
+ ret = -ENOMEM;
+ goto err_hdmiphy;
+ }
+ INIT_WORK(&hdata->hotplug_work, hdmi_hotplug_func);
+
+ /* register hpd interrupt */
+ ret = request_irq(res->start, hdmi_irq_handler, 0, "drm_hdmi",
+ drm_hdmi_ctx);
+ if (ret) {
+ DRM_ERROR("request interrupt failed.\n");
+ goto err_workqueue;
+ }
+ hdata->irq = res->start;
+
+ /* register specific callbacks to common hdmi. */
+ exynos_drm_display_ops_register(&display_ops);
+ exynos_drm_manager_ops_register(&manager_ops);
+
+ hdmi_resource_poweron(hdata);
+
+ return 0;
+
+err_workqueue:
+ destroy_workqueue(hdata->wq);
+err_hdmiphy:
+ i2c_del_driver(&hdmiphy_driver);
+err_ddc:
+ i2c_del_driver(&ddc_driver);
+err_iomap:
+ iounmap(hdata->regs);
+err_req_region:
+ release_mem_region(hdata->regs_res->start,
+ resource_size(hdata->regs_res));
+err_resource:
+ hdmi_resources_cleanup(hdata);
+err_data:
+ kfree(hdata);
+ kfree(drm_hdmi_ctx);
+ return ret;
+}
+
+static int __devexit hdmi_remove(struct platform_device *pdev)
+{
+ struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev);
+ struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx;
+
+ DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+ hdmi_resource_poweroff(hdata);
+
+ disable_irq(hdata->irq);
+ free_irq(hdata->irq, hdata);
+
+ cancel_work_sync(&hdata->hotplug_work);
+ destroy_workqueue(hdata->wq);
+
+ hdmi_resources_cleanup(hdata);
+
+ iounmap(hdata->regs);
+
+ release_mem_region(hdata->regs_res->start,
+ resource_size(hdata->regs_res));
+
+ /* hdmiphy i2c driver */
+ i2c_del_driver(&hdmiphy_driver);
+ /* DDC i2c driver */
+ i2c_del_driver(&ddc_driver);
+
+ kfree(hdata);
+
+ return 0;
+}
+
+struct platform_driver hdmi_driver = {
+ .probe = hdmi_probe,
+ .remove = __devexit_p(hdmi_remove),
+ .driver = {
+ .name = "exynos4-hdmi",
+ .owner = THIS_MODULE,
+ .pm = &hdmi_pm_ops,
+ },
+};
+EXPORT_SYMBOL(hdmi_driver);
+
+MODULE_AUTHOR("Seung-Woo Kim, <sw0312.kim@samsung.com>");
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Samsung DRM HDMI core Driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-09 01:44:49 +0000