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linux/drivers/gpu/drm/exynos/exynos_hdmi.c
Ville Syrjälä f1781e9bb2 drm/edid: Allow HDMI infoframe without VIC or S3D 
Appedix F of HDMI 2.0 says that some HDMI sink may fail to switch from
3D to 2D mode in a timely fashion if the source simply stops sending the
HDMI infoframe. The suggested workaround is to keep sending the
infoframe even when strictly not necessary (ie. no VIC and no S3D).
HDMI 1.4 does allow for this behaviour, stating that sending the
infoframe is optional in this case.

The infoframe was first specified in HDMI 1.4, so in theory sinks
predating that may not appreciate us sending an uknown infoframe
their way. To avoid regressions let's try to determine if the sink
supports the infoframe or not. Unfortunately there's no direct way
to do that, so instead we'll just check if we managed to parse any
HDMI 1.4 4k or stereo modes from the EDID, and if so we assume the
sink will accept the infoframe. Also if the EDID contains the HDMI
2.0 HDMI Forum VSDB we can assume the sink is prepared to receive
the infoframe.

v2: Fix getting has_hdmi_infoframe from display_info
    Always fail constructing the infoframe if the display
    possibly can't handle it

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171113170427.4150-3-ville.syrjala@linux.intel.com
2017-11-22 19:24:34 +02:00

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/*
* 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 <drm/drmP.h>
#include <drm/drm_edid.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_atomic_helper.h>
#include "regs-hdmi.h"
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/i2c.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/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/hdmi.h>
#include <linux/component.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
#include <sound/hdmi-codec.h>
#include <drm/exynos_drm.h>
#include <media/cec-notifier.h>
#include "exynos_drm_crtc.h"
#define HOTPLUG_DEBOUNCE_MS 1100
enum hdmi_type {
HDMI_TYPE13,
HDMI_TYPE14,
HDMI_TYPE_COUNT
};
#define HDMI_MAPPED_BASE 0xffff0000
enum hdmi_mapped_regs {
HDMI_PHY_STATUS = HDMI_MAPPED_BASE,
HDMI_PHY_RSTOUT,
HDMI_ACR_CON,
HDMI_ACR_MCTS0,
HDMI_ACR_CTS0,
HDMI_ACR_N0
};
static const u32 hdmi_reg_map[][HDMI_TYPE_COUNT] = {
{ HDMI_V13_PHY_STATUS, HDMI_PHY_STATUS_0 },
{ HDMI_V13_PHY_RSTOUT, HDMI_V14_PHY_RSTOUT },
{ HDMI_V13_ACR_CON, HDMI_V14_ACR_CON },
{ HDMI_V13_ACR_MCTS0, HDMI_V14_ACR_MCTS0 },
{ HDMI_V13_ACR_CTS0, HDMI_V14_ACR_CTS0 },
{ HDMI_V13_ACR_N0, HDMI_V14_ACR_N0 },
};
static const char * const supply[] = {
"vdd",
"vdd_osc",
"vdd_pll",
};
struct hdmiphy_config {
int pixel_clock;
u8 conf[32];
};
struct hdmiphy_configs {
int count;
const struct hdmiphy_config *data;
};
struct string_array_spec {
int count;
const char * const *data;
};
#define INIT_ARRAY_SPEC(a) { .count = ARRAY_SIZE(a), .data = a }
struct hdmi_driver_data {
unsigned int type;
unsigned int is_apb_phy:1;
unsigned int has_sysreg:1;
struct hdmiphy_configs phy_confs;
struct string_array_spec clk_gates;
/*
* Array of triplets (p_off, p_on, clock), where p_off and p_on are
* required parents of clock when HDMI-PHY is respectively off or on.
*/
struct string_array_spec clk_muxes;
};
struct hdmi_audio {
struct platform_device *pdev;
struct hdmi_audio_infoframe infoframe;
struct hdmi_codec_params params;
bool mute;
};
struct hdmi_context {
struct drm_encoder encoder;
struct device *dev;
struct drm_device *drm_dev;
struct drm_connector connector;
bool dvi_mode;
struct delayed_work hotplug_work;
struct cec_notifier *notifier;
const struct hdmi_driver_data *drv_data;
void __iomem *regs;
void __iomem *regs_hdmiphy;
struct i2c_client *hdmiphy_port;
struct i2c_adapter *ddc_adpt;
struct gpio_desc *hpd_gpio;
int irq;
struct regmap *pmureg;
struct regmap *sysreg;
struct clk **clk_gates;
struct clk **clk_muxes;
struct regulator_bulk_data regul_bulk[ARRAY_SIZE(supply)];
struct regulator *reg_hdmi_en;
struct exynos_drm_clk phy_clk;
struct drm_bridge *bridge;
/* mutex protecting subsequent fields below */
struct mutex mutex;
struct hdmi_audio audio;
bool powered;
};
static inline struct hdmi_context *encoder_to_hdmi(struct drm_encoder *e)
{
return container_of(e, struct hdmi_context, encoder);
}
static inline struct hdmi_context *connector_to_hdmi(struct drm_connector *c)
{
return container_of(c, struct hdmi_context, connector);
}
static const struct hdmiphy_config hdmiphy_v13_configs[] = {
{
.pixel_clock = 27000000,
.conf = {
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, 0x80,
},
},
{
.pixel_clock = 27027000,
.conf = {
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, 0x80,
},
},
{
.pixel_clock = 74176000,
.conf = {
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, 0x80,
},
},
{
.pixel_clock = 74250000,
.conf = {
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, 0x80,
},
},
{
.pixel_clock = 148500000,
.conf = {
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, 0x80,
},
},
};
static const struct hdmiphy_config hdmiphy_v14_configs[] = {
{
.pixel_clock = 25200000,
.conf = {
0x01, 0x51, 0x2A, 0x75, 0x40, 0x01, 0x00, 0x08,
0x82, 0x80, 0xfc, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xf4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 27000000,
.conf = {
0x01, 0xd1, 0x22, 0x51, 0x40, 0x08, 0xfc, 0x20,
0x98, 0xa0, 0xcb, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x06, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xe4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 27027000,
.conf = {
0x01, 0xd1, 0x2d, 0x72, 0x40, 0x64, 0x12, 0x08,
0x43, 0xa0, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xe3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 36000000,
.conf = {
0x01, 0x51, 0x2d, 0x55, 0x40, 0x01, 0x00, 0x08,
0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xab, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 40000000,
.conf = {
0x01, 0x51, 0x32, 0x55, 0x40, 0x01, 0x00, 0x08,
0x82, 0x80, 0x2c, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x9a, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 65000000,
.conf = {
0x01, 0xd1, 0x36, 0x34, 0x40, 0x1e, 0x0a, 0x08,
0x82, 0xa0, 0x45, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xbd, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 71000000,
.conf = {
0x01, 0xd1, 0x3b, 0x35, 0x40, 0x0c, 0x04, 0x08,
0x85, 0xa0, 0x63, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xad, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 73250000,
.conf = {
0x01, 0xd1, 0x3d, 0x35, 0x40, 0x18, 0x02, 0x08,
0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xa8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 74176000,
.conf = {
0x01, 0xd1, 0x3e, 0x35, 0x40, 0x5b, 0xde, 0x08,
0x82, 0xa0, 0x73, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x56, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xa6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 74250000,
.conf = {
0x01, 0xd1, 0x1f, 0x10, 0x40, 0x40, 0xf8, 0x08,
0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xa5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 83500000,
.conf = {
0x01, 0xd1, 0x23, 0x11, 0x40, 0x0c, 0xfb, 0x08,
0x85, 0xa0, 0xd1, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x93, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 85500000,
.conf = {
0x01, 0xd1, 0x24, 0x11, 0x40, 0x40, 0xd0, 0x08,
0x84, 0xa0, 0xd6, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x90, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 106500000,
.conf = {
0x01, 0xd1, 0x2c, 0x12, 0x40, 0x0c, 0x09, 0x08,
0x84, 0xa0, 0x0a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 108000000,
.conf = {
0x01, 0x51, 0x2d, 0x15, 0x40, 0x01, 0x00, 0x08,
0x82, 0x80, 0x0e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xc7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 115500000,
.conf = {
0x01, 0xd1, 0x30, 0x12, 0x40, 0x40, 0x10, 0x08,
0x80, 0x80, 0x21, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0xaa, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 119000000,
.conf = {
0x01, 0xd1, 0x32, 0x1a, 0x40, 0x30, 0xd8, 0x08,
0x04, 0xa0, 0x2a, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x9d, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 146250000,
.conf = {
0x01, 0xd1, 0x3d, 0x15, 0x40, 0x18, 0xfd, 0x08,
0x83, 0xa0, 0x6e, 0xd9, 0x45, 0xa0, 0xac, 0x80,
0x08, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x50, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 148500000,
.conf = {
0x01, 0xd1, 0x1f, 0x00, 0x40, 0x40, 0xf8, 0x08,
0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
0x3c, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
0x54, 0x4b, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
};
static const struct hdmiphy_config hdmiphy_5420_configs[] = {
{
.pixel_clock = 25200000,
.conf = {
0x01, 0x52, 0x3F, 0x55, 0x40, 0x01, 0x00, 0xC8,
0x82, 0xC8, 0xBD, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x06, 0x80, 0x01, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xF4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 27000000,
.conf = {
0x01, 0xD1, 0x22, 0x51, 0x40, 0x08, 0xFC, 0xE0,
0x98, 0xE8, 0xCB, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x06, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xE4, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 27027000,
.conf = {
0x01, 0xD1, 0x2D, 0x72, 0x40, 0x64, 0x12, 0xC8,
0x43, 0xE8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x26, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xE3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 36000000,
.conf = {
0x01, 0x51, 0x2D, 0x55, 0x40, 0x40, 0x00, 0xC8,
0x02, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xAB, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 40000000,
.conf = {
0x01, 0xD1, 0x21, 0x31, 0x40, 0x3C, 0x28, 0xC8,
0x87, 0xE8, 0xC8, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x9A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 65000000,
.conf = {
0x01, 0xD1, 0x36, 0x34, 0x40, 0x0C, 0x04, 0xC8,
0x82, 0xE8, 0x45, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xBD, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 71000000,
.conf = {
0x01, 0xD1, 0x3B, 0x35, 0x40, 0x0C, 0x04, 0xC8,
0x85, 0xE8, 0x63, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x57, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 73250000,
.conf = {
0x01, 0xD1, 0x1F, 0x10, 0x40, 0x78, 0x8D, 0xC8,
0x81, 0xE8, 0xB7, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xA8, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 74176000,
.conf = {
0x01, 0xD1, 0x1F, 0x10, 0x40, 0x5B, 0xEF, 0xC8,
0x81, 0xE8, 0xB9, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x56, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xA6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 74250000,
.conf = {
0x01, 0xD1, 0x1F, 0x10, 0x40, 0x40, 0xF8, 0x08,
0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
0x54, 0xA5, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 83500000,
.conf = {
0x01, 0xD1, 0x23, 0x11, 0x40, 0x0C, 0xFB, 0xC8,
0x85, 0xE8, 0xD1, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x4A, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 88750000,
.conf = {
0x01, 0xD1, 0x25, 0x11, 0x40, 0x18, 0xFF, 0xC8,
0x83, 0xE8, 0xDE, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x45, 0x24, 0x00, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 106500000,
.conf = {
0x01, 0xD1, 0x2C, 0x12, 0x40, 0x0C, 0x09, 0xC8,
0x84, 0xE8, 0x0A, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x73, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 108000000,
.conf = {
0x01, 0x51, 0x2D, 0x15, 0x40, 0x01, 0x00, 0xC8,
0x82, 0xC8, 0x0E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0xC7, 0x25, 0x03, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 115500000,
.conf = {
0x01, 0xD1, 0x30, 0x14, 0x40, 0x0C, 0x03, 0xC8,
0x88, 0xE8, 0x21, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x6A, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 146250000,
.conf = {
0x01, 0xD1, 0x3D, 0x15, 0x40, 0x18, 0xFD, 0xC8,
0x83, 0xE8, 0x6E, 0xD9, 0x45, 0xA0, 0xAC, 0x80,
0x08, 0x80, 0x09, 0x84, 0x05, 0x02, 0x24, 0x66,
0x54, 0x54, 0x24, 0x01, 0x00, 0x00, 0x01, 0x80,
},
},
{
.pixel_clock = 148500000,
.conf = {
0x01, 0xD1, 0x1F, 0x00, 0x40, 0x40, 0xF8, 0x08,
0x81, 0xE8, 0xBA, 0xD8, 0x45, 0xA0, 0xAC, 0x80,
0x26, 0x80, 0x09, 0x84, 0x05, 0x22, 0x24, 0x66,
0x54, 0x4B, 0x25, 0x03, 0x00, 0x80, 0x01, 0x80,
},
},
};
static const struct hdmiphy_config hdmiphy_5433_configs[] = {
{
.pixel_clock = 27000000,
.conf = {
0x01, 0x51, 0x2d, 0x75, 0x01, 0x00, 0x88, 0x02,
0x72, 0x50, 0x44, 0x8c, 0x27, 0x00, 0x7c, 0xac,
0xd6, 0x2b, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 27027000,
.conf = {
0x01, 0x51, 0x2d, 0x72, 0x64, 0x09, 0x88, 0xc3,
0x71, 0x50, 0x44, 0x8c, 0x27, 0x00, 0x7c, 0xac,
0xd6, 0x2b, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 40000000,
.conf = {
0x01, 0x51, 0x32, 0x55, 0x01, 0x00, 0x88, 0x02,
0x4d, 0x50, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 50000000,
.conf = {
0x01, 0x51, 0x34, 0x40, 0x64, 0x09, 0x88, 0xc3,
0x3d, 0x50, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 65000000,
.conf = {
0x01, 0x51, 0x36, 0x31, 0x40, 0x10, 0x04, 0xc6,
0x2e, 0xe8, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 74176000,
.conf = {
0x01, 0x51, 0x3E, 0x35, 0x5B, 0xDE, 0x88, 0x42,
0x53, 0x51, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 74250000,
.conf = {
0x01, 0x51, 0x3E, 0x35, 0x40, 0xF0, 0x88, 0xC2,
0x52, 0x51, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 108000000,
.conf = {
0x01, 0x51, 0x2d, 0x15, 0x01, 0x00, 0x88, 0x02,
0x72, 0x52, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
{
.pixel_clock = 148500000,
.conf = {
0x01, 0x51, 0x1f, 0x00, 0x40, 0xf8, 0x88, 0xc1,
0x52, 0x52, 0x24, 0x0c, 0x24, 0x0f, 0x7c, 0xa5,
0xd4, 0x2b, 0x87, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x4a, 0x00, 0x40,
},
},
{
.pixel_clock = 297000000,
.conf = {
0x01, 0x51, 0x3E, 0x05, 0x40, 0xF0, 0x88, 0xC2,
0x52, 0x53, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
},
},
};
static const char * const hdmi_clk_gates4[] = {
"hdmi", "sclk_hdmi"
};
static const char * const hdmi_clk_muxes4[] = {
"sclk_pixel", "sclk_hdmiphy", "mout_hdmi"
};
static const char * const hdmi_clk_gates5433[] = {
"hdmi_pclk", "hdmi_i_pclk", "i_tmds_clk", "i_pixel_clk", "i_spdif_clk"
};
static const char * const hdmi_clk_muxes5433[] = {
"oscclk", "tmds_clko", "tmds_clko_user",
"oscclk", "pixel_clko", "pixel_clko_user"
};
static const struct hdmi_driver_data exynos4210_hdmi_driver_data = {
.type = HDMI_TYPE13,
.phy_confs = INIT_ARRAY_SPEC(hdmiphy_v13_configs),
.clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
.clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
};
static const struct hdmi_driver_data exynos4212_hdmi_driver_data = {
.type = HDMI_TYPE14,
.phy_confs = INIT_ARRAY_SPEC(hdmiphy_v14_configs),
.clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
.clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
};
static const struct hdmi_driver_data exynos5420_hdmi_driver_data = {
.type = HDMI_TYPE14,
.is_apb_phy = 1,
.phy_confs = INIT_ARRAY_SPEC(hdmiphy_5420_configs),
.clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates4),
.clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes4),
};
static const struct hdmi_driver_data exynos5433_hdmi_driver_data = {
.type = HDMI_TYPE14,
.is_apb_phy = 1,
.has_sysreg = 1,
.phy_confs = INIT_ARRAY_SPEC(hdmiphy_5433_configs),
.clk_gates = INIT_ARRAY_SPEC(hdmi_clk_gates5433),
.clk_muxes = INIT_ARRAY_SPEC(hdmi_clk_muxes5433),
};
static inline u32 hdmi_map_reg(struct hdmi_context *hdata, u32 reg_id)
{
if ((reg_id & 0xffff0000) == HDMI_MAPPED_BASE)
return hdmi_reg_map[reg_id & 0xffff][hdata->drv_data->type];
return reg_id;
}
static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
{
return readl(hdata->regs + hdmi_map_reg(hdata, reg_id));
}
static inline void hdmi_reg_writeb(struct hdmi_context *hdata,
u32 reg_id, u8 value)
{
writel(value, hdata->regs + hdmi_map_reg(hdata, reg_id));
}
static inline void hdmi_reg_writev(struct hdmi_context *hdata, u32 reg_id,
int bytes, u32 val)
{
reg_id = hdmi_map_reg(hdata, reg_id);
while (--bytes >= 0) {
writel(val & 0xff, hdata->regs + reg_id);
val >>= 8;
reg_id += 4;
}
}
static inline void hdmi_reg_write_buf(struct hdmi_context *hdata, u32 reg_id,
u8 *buf, int size)
{
for (reg_id = hdmi_map_reg(hdata, reg_id); size; --size, reg_id += 4)
writel(*buf++, hdata->regs + reg_id);
}
static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
u32 reg_id, u32 value, u32 mask)
{
u32 old;
reg_id = hdmi_map_reg(hdata, reg_id);
old = readl(hdata->regs + reg_id);
value = (value & mask) | (old & ~mask);
writel(value, hdata->regs + reg_id);
}
static int hdmiphy_reg_write_buf(struct hdmi_context *hdata,
u32 reg_offset, const u8 *buf, u32 len)
{
if ((reg_offset + len) > 32)
return -EINVAL;
if (hdata->hdmiphy_port) {
int ret;
ret = i2c_master_send(hdata->hdmiphy_port, buf, len);
if (ret == len)
return 0;
return ret;
} else {
int i;
for (i = 0; i < len; i++)
writel(buf[i], hdata->regs_hdmiphy +
((reg_offset + i)<<2));
return 0;
}
}
static int hdmi_clk_enable_gates(struct hdmi_context *hdata)
{
int i, ret;
for (i = 0; i < hdata->drv_data->clk_gates.count; ++i) {
ret = clk_prepare_enable(hdata->clk_gates[i]);
if (!ret)
continue;
dev_err(hdata->dev, "Cannot enable clock '%s', %d\n",
hdata->drv_data->clk_gates.data[i], ret);
while (i--)
clk_disable_unprepare(hdata->clk_gates[i]);
return ret;
}
return 0;
}
static void hdmi_clk_disable_gates(struct hdmi_context *hdata)
{
int i = hdata->drv_data->clk_gates.count;
while (i--)
clk_disable_unprepare(hdata->clk_gates[i]);
}
static int hdmi_clk_set_parents(struct hdmi_context *hdata, bool to_phy)
{
struct device *dev = hdata->dev;
int ret = 0;
int i;
for (i = 0; i < hdata->drv_data->clk_muxes.count; i += 3) {
struct clk **c = &hdata->clk_muxes[i];
ret = clk_set_parent(c[2], c[to_phy]);
if (!ret)
continue;
dev_err(dev, "Cannot set clock parent of '%s' to '%s', %d\n",
hdata->drv_data->clk_muxes.data[i + 2],
hdata->drv_data->clk_muxes.data[i + to_phy], ret);
}
return ret;
}
static int hdmi_audio_infoframe_apply(struct hdmi_context *hdata)
{
struct hdmi_audio_infoframe *infoframe = &hdata->audio.infoframe;
u8 buf[HDMI_INFOFRAME_SIZE(AUDIO)];
int len;
len = hdmi_audio_infoframe_pack(infoframe, buf, sizeof(buf));
if (len < 0)
return len;
hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_EVERY_VSYNC);
hdmi_reg_write_buf(hdata, HDMI_AUI_HEADER0, buf, len);
return 0;
}
static void hdmi_reg_infoframes(struct hdmi_context *hdata)
{
struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
union hdmi_infoframe frm;
u8 buf[25];
int ret;
if (hdata->dvi_mode) {
hdmi_reg_writeb(hdata, HDMI_AVI_CON,
HDMI_AVI_CON_DO_NOT_TRANSMIT);
hdmi_reg_writeb(hdata, HDMI_VSI_CON,
HDMI_VSI_CON_DO_NOT_TRANSMIT);
hdmi_reg_writeb(hdata, HDMI_AUI_CON, HDMI_AUI_CON_NO_TRAN);
return;
}
ret = drm_hdmi_avi_infoframe_from_display_mode(&frm.avi, m, false);
if (!ret)
ret = hdmi_avi_infoframe_pack(&frm.avi, buf, sizeof(buf));
if (ret > 0) {
hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
hdmi_reg_write_buf(hdata, HDMI_AVI_HEADER0, buf, ret);
} else {
DRM_INFO("%s: invalid AVI infoframe (%d)\n", __func__, ret);
}
ret = drm_hdmi_vendor_infoframe_from_display_mode(&frm.vendor.hdmi,
&hdata->connector, m);
if (!ret)
ret = hdmi_vendor_infoframe_pack(&frm.vendor.hdmi, buf,
sizeof(buf));
if (ret > 0) {
hdmi_reg_writeb(hdata, HDMI_VSI_CON, HDMI_VSI_CON_EVERY_VSYNC);
hdmi_reg_write_buf(hdata, HDMI_VSI_HEADER0, buf, 3);
hdmi_reg_write_buf(hdata, HDMI_VSI_DATA(0), buf + 3, ret - 3);
}
hdmi_audio_infoframe_apply(hdata);
}
static enum drm_connector_status hdmi_detect(struct drm_connector *connector,
bool force)
{
struct hdmi_context *hdata = connector_to_hdmi(connector);
if (gpiod_get_value(hdata->hpd_gpio))
return connector_status_connected;
cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID);
return connector_status_disconnected;
}
static void hdmi_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
static const struct drm_connector_funcs hdmi_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = hdmi_detect,
.destroy = 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 int hdmi_get_modes(struct drm_connector *connector)
{
struct hdmi_context *hdata = connector_to_hdmi(connector);
struct edid *edid;
int ret;
if (!hdata->ddc_adpt)
return -ENODEV;
edid = drm_get_edid(connector, hdata->ddc_adpt);
if (!edid)
return -ENODEV;
hdata->dvi_mode = !drm_detect_hdmi_monitor(edid);
DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n",
(hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
edid->width_cm, edid->height_cm);
drm_mode_connector_update_edid_property(connector, edid);
cec_notifier_set_phys_addr_from_edid(hdata->notifier, edid);
ret = drm_add_edid_modes(connector, edid);
kfree(edid);
return ret;
}
static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
{
const struct hdmiphy_configs *confs = &hdata->drv_data->phy_confs;
int i;
for (i = 0; i < confs->count; i++)
if (confs->data[i].pixel_clock == pixel_clock)
return i;
DRM_DEBUG_KMS("Could not find phy config for %d\n", pixel_clock);
return -EINVAL;
}
static int hdmi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct hdmi_context *hdata = connector_to_hdmi(connector);
int ret;
DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
mode->hdisplay, mode->vdisplay, mode->vrefresh,
(mode->flags & DRM_MODE_FLAG_INTERLACE) ? true :
false, mode->clock * 1000);
ret = hdmi_find_phy_conf(hdata, mode->clock * 1000);
if (ret < 0)
return MODE_BAD;
return MODE_OK;
}
static const struct drm_connector_helper_funcs hdmi_connector_helper_funcs = {
.get_modes = hdmi_get_modes,
.mode_valid = hdmi_mode_valid,
};
static int hdmi_create_connector(struct drm_encoder *encoder)
{
struct hdmi_context *hdata = encoder_to_hdmi(encoder);
struct drm_connector *connector = &hdata->connector;
int ret;
connector->interlace_allowed = true;
connector->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(hdata->drm_dev, connector,
&hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
}
drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
drm_mode_connector_attach_encoder(connector, encoder);
if (hdata->bridge) {
encoder->bridge = hdata->bridge;
hdata->bridge->encoder = encoder;
ret = drm_bridge_attach(encoder, hdata->bridge, NULL);
if (ret)
DRM_ERROR("Failed to attach bridge\n");
}
return ret;
}
static bool hdmi_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct drm_connector *connector;
struct drm_display_mode *m;
struct drm_connector_list_iter conn_iter;
int mode_ok;
drm_mode_set_crtcinfo(adjusted_mode, 0);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->encoder == encoder)
break;
}
if (connector)
drm_connector_get(connector);
drm_connector_list_iter_end(&conn_iter);
if (!connector)
return true;
mode_ok = hdmi_mode_valid(connector, adjusted_mode);
if (mode_ok == MODE_OK)
goto cleanup;
/*
* Find the most suitable mode and copy it to adjusted_mode.
*/
list_for_each_entry(m, &connector->modes, head) {
mode_ok = hdmi_mode_valid(connector, m);
if (mode_ok == MODE_OK) {
DRM_INFO("desired mode doesn't exist so\n");
DRM_INFO("use the most suitable mode among modes.\n");
DRM_DEBUG_KMS("Adjusted Mode: [%d]x[%d] [%d]Hz\n",
m->hdisplay, m->vdisplay, m->vrefresh);
drm_mode_copy(adjusted_mode, m);
break;
}
}
cleanup:
drm_connector_put(connector);
return true;
}
static void hdmi_reg_acr(struct hdmi_context *hdata, u32 freq)
{
u32 n, cts;
cts = (freq % 9) ? 27000 : 30000;
n = 128 * freq / (27000000 / cts);
hdmi_reg_writev(hdata, HDMI_ACR_N0, 3, n);
hdmi_reg_writev(hdata, HDMI_ACR_MCTS0, 3, cts);
hdmi_reg_writev(hdata, HDMI_ACR_CTS0, 3, cts);
hdmi_reg_writeb(hdata, HDMI_ACR_CON, 4);
}
static void hdmi_audio_config(struct hdmi_context *hdata)
{
u32 bit_ch = 1;
u32 data_num, val;
int i;
switch (hdata->audio.params.sample_width) {
case 20:
data_num = 2;
break;
case 24:
data_num = 3;
break;
default:
data_num = 1;
bit_ch = 0;
break;
}
hdmi_reg_acr(hdata, hdata->audio.params.sample_rate);
hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CON, HDMI_I2S_IN_DISABLE
| HDMI_I2S_AUD_I2S | HDMI_I2S_CUV_I2S_ENABLE
| HDMI_I2S_MUX_ENABLE);
hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CH, HDMI_I2S_CH0_EN
| HDMI_I2S_CH1_EN | HDMI_I2S_CH2_EN);
hdmi_reg_writeb(hdata, HDMI_I2S_MUX_CUV, HDMI_I2S_CUV_RL_EN);
hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_DIS);
hdmi_reg_writeb(hdata, HDMI_I2S_CLK_CON, HDMI_I2S_CLK_EN);
val = hdmi_reg_read(hdata, HDMI_I2S_DSD_CON) | 0x01;
hdmi_reg_writeb(hdata, HDMI_I2S_DSD_CON, val);
/* Configuration I2S input ports. Configure I2S_PIN_SEL_0~4 */
hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_0, HDMI_I2S_SEL_SCLK(5)
| HDMI_I2S_SEL_LRCK(6));
hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_1, HDMI_I2S_SEL_SDATA1(1)
| HDMI_I2S_SEL_SDATA2(4));
hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_2, HDMI_I2S_SEL_SDATA3(1)
| HDMI_I2S_SEL_SDATA2(2));
hdmi_reg_writeb(hdata, HDMI_I2S_PIN_SEL_3, HDMI_I2S_SEL_DSD(0));
/* I2S_CON_1 & 2 */
hdmi_reg_writeb(hdata, HDMI_I2S_CON_1, HDMI_I2S_SCLK_FALLING_EDGE
| HDMI_I2S_L_CH_LOW_POL);
hdmi_reg_writeb(hdata, HDMI_I2S_CON_2, HDMI_I2S_MSB_FIRST_MODE
| HDMI_I2S_SET_BIT_CH(bit_ch)
| HDMI_I2S_SET_SDATA_BIT(data_num)
| HDMI_I2S_BASIC_FORMAT);
/* Configuration of the audio channel status registers */
for (i = 0; i < HDMI_I2S_CH_ST_MAXNUM; i++)
hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST(i),
hdata->audio.params.iec.status[i]);
hdmi_reg_writeb(hdata, HDMI_I2S_CH_ST_CON, HDMI_I2S_CH_STATUS_RELOAD);
}
static void hdmi_audio_control(struct hdmi_context *hdata)
{
bool enable = !hdata->audio.mute;
if (hdata->dvi_mode)
return;
hdmi_reg_writeb(hdata, HDMI_AUI_CON, enable ?
HDMI_AVI_CON_EVERY_VSYNC : HDMI_AUI_CON_NO_TRAN);
hdmi_reg_writemask(hdata, HDMI_CON_0, enable ?
HDMI_ASP_EN : HDMI_ASP_DIS, HDMI_ASP_MASK);
}
static void hdmi_start(struct hdmi_context *hdata, bool start)
{
struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
u32 val = start ? HDMI_TG_EN : 0;
if (m->flags & DRM_MODE_FLAG_INTERLACE)
val |= HDMI_FIELD_EN;
hdmi_reg_writemask(hdata, HDMI_CON_0, val, HDMI_EN);
hdmi_reg_writemask(hdata, HDMI_TG_CMD, val, HDMI_TG_EN | HDMI_FIELD_EN);
}
static void hdmi_conf_init(struct hdmi_context *hdata)
{
/* disable HPD interrupts from HDMI IP block, use GPIO instead */
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);
/* apply video pre-amble and guard band in HDMI mode only */
hdmi_reg_writeb(hdata, HDMI_CON_2, 0);
/* disable bluescreen */
hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
if (hdata->dvi_mode) {
hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
hdmi_reg_writeb(hdata, HDMI_CON_2,
HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
}
if (hdata->drv_data->type == HDMI_TYPE13) {
/* choose bluescreen (fecal) color */
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_1, 0x34);
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_2, 0x56);
/* enable AVI packet every vsync, fixes purple line problem */
hdmi_reg_writeb(hdata, HDMI_V13_AVI_CON, 0x02);
/* force RGB, look to CEA-861-D, table 7 for more detail */
hdmi_reg_writeb(hdata, HDMI_V13_AVI_BYTE(0), 0 << 5);
hdmi_reg_writemask(hdata, HDMI_CON_1, 0x10 << 5, 0x11 << 5);
hdmi_reg_writeb(hdata, HDMI_V13_SPD_CON, 0x02);
hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
} else {
hdmi_reg_infoframes(hdata);
/* enable AVI packet every vsync, fixes purple line problem */
hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5);
}
}
static void hdmiphy_wait_for_pll(struct hdmi_context *hdata)
{
int tries;
for (tries = 0; tries < 10; ++tries) {
u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS);
if (val & HDMI_PHY_STATUS_READY) {
DRM_DEBUG_KMS("PLL stabilized after %d tries\n", tries);
return;
}
usleep_range(10, 20);
}
DRM_ERROR("PLL could not reach steady state\n");
}
static void hdmi_v13_mode_apply(struct hdmi_context *hdata)
{
struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
unsigned int val;
hdmi_reg_writev(hdata, HDMI_H_BLANK_0, 2, m->htotal - m->hdisplay);
hdmi_reg_writev(hdata, HDMI_V13_H_V_LINE_0, 3,
(m->htotal << 12) | m->vtotal);
val = (m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0;
hdmi_reg_writev(hdata, HDMI_VSYNC_POL, 1, val);
val = (m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0;
hdmi_reg_writev(hdata, HDMI_INT_PRO_MODE, 1, val);
val = (m->hsync_start - m->hdisplay - 2);
val |= ((m->hsync_end - m->hdisplay - 2) << 10);
val |= ((m->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0)<<20;
hdmi_reg_writev(hdata, HDMI_V13_H_SYNC_GEN_0, 3, val);
/*
* Quirk requirement for exynos HDMI IP design,
* 2 pixels less than the actual calculation for hsync_start
* and end.
*/
/* Following values & calculations differ for different type of modes */
if (m->flags & DRM_MODE_FLAG_INTERLACE) {
val = ((m->vsync_end - m->vdisplay) / 2);
val |= ((m->vsync_start - m->vdisplay) / 2) << 12;
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_1_0, 3, val);
val = m->vtotal / 2;
val |= ((m->vtotal - m->vdisplay) / 2) << 11;
hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_0, 3, val);
val = (m->vtotal +
((m->vsync_end - m->vsync_start) * 4) + 5) / 2;
val |= m->vtotal << 11;
hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_F_0, 3, val);
val = ((m->vtotal / 2) + 7);
val |= ((m->vtotal / 2) + 2) << 12;
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_2_0, 3, val);
val = ((m->htotal / 2) + (m->hsync_start - m->hdisplay));
val |= ((m->htotal / 2) +
(m->hsync_start - m->hdisplay)) << 12;
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_3_0, 3, val);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
(m->vtotal - m->vdisplay) / 2);
hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay / 2);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST2_L, 2, 0x249);
} else {
val = m->vtotal;
val |= (m->vtotal - m->vdisplay) << 11;
hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_0, 3, val);
hdmi_reg_writev(hdata, HDMI_V13_V_BLANK_F_0, 3, 0);
val = (m->vsync_end - m->vdisplay);
val |= ((m->vsync_start - m->vdisplay) << 12);
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_1_0, 3, val);
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_2_0, 3, 0x1001);
hdmi_reg_writev(hdata, HDMI_V13_V_SYNC_GEN_3_0, 3, 0x1001);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
m->vtotal - m->vdisplay);
hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay);
}
hdmi_reg_writev(hdata, HDMI_TG_H_FSZ_L, 2, m->htotal);
hdmi_reg_writev(hdata, HDMI_TG_HACT_ST_L, 2, m->htotal - m->hdisplay);
hdmi_reg_writev(hdata, HDMI_TG_HACT_SZ_L, 2, m->hdisplay);
hdmi_reg_writev(hdata, HDMI_TG_V_FSZ_L, 2, m->vtotal);
}
static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
{
struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
struct drm_display_mode *am =
&hdata->encoder.crtc->state->adjusted_mode;
int hquirk = 0;
/*
* In case video mode coming from CRTC differs from requested one HDMI
* sometimes is able to almost properly perform conversion - only
* first line is distorted.
*/
if ((m->vdisplay != am->vdisplay) &&
(m->hdisplay == 1280 || m->hdisplay == 1024 || m->hdisplay == 1366))
hquirk = 258;
hdmi_reg_writev(hdata, HDMI_H_BLANK_0, 2, m->htotal - m->hdisplay);
hdmi_reg_writev(hdata, HDMI_V_LINE_0, 2, m->vtotal);
hdmi_reg_writev(hdata, HDMI_H_LINE_0, 2, m->htotal);
hdmi_reg_writev(hdata, HDMI_HSYNC_POL, 1,
(m->flags & DRM_MODE_FLAG_NHSYNC) ? 1 : 0);
hdmi_reg_writev(hdata, HDMI_VSYNC_POL, 1,
(m->flags & DRM_MODE_FLAG_NVSYNC) ? 1 : 0);
hdmi_reg_writev(hdata, HDMI_INT_PRO_MODE, 1,
(m->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0);
/*
* Quirk requirement for exynos 5 HDMI IP design,
* 2 pixels less than the actual calculation for hsync_start
* and end.
*/
/* Following values & calculations differ for different type of modes */
if (m->flags & DRM_MODE_FLAG_INTERLACE) {
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_2_0, 2,
(m->vsync_end - m->vdisplay) / 2);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_1_0, 2,
(m->vsync_start - m->vdisplay) / 2);
hdmi_reg_writev(hdata, HDMI_V2_BLANK_0, 2, m->vtotal / 2);
hdmi_reg_writev(hdata, HDMI_V1_BLANK_0, 2,
(m->vtotal - m->vdisplay) / 2);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F0_0, 2,
m->vtotal - m->vdisplay / 2);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F1_0, 2, m->vtotal);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_2_0, 2,
(m->vtotal / 2) + 7);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_1_0, 2,
(m->vtotal / 2) + 2);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_0, 2,
(m->htotal / 2) + (m->hsync_start - m->hdisplay));
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_0, 2,
(m->htotal / 2) + (m->hsync_start - m->hdisplay));
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
(m->vtotal - m->vdisplay) / 2);
hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay / 2);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST2_L, 2,
m->vtotal - m->vdisplay / 2);
hdmi_reg_writev(hdata, HDMI_TG_VSYNC2_L, 2,
(m->vtotal / 2) + 1);
hdmi_reg_writev(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, 2,
(m->vtotal / 2) + 1);
hdmi_reg_writev(hdata, HDMI_TG_FIELD_BOT_HDMI_L, 2,
(m->vtotal / 2) + 1);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST3_L, 2, 0x0);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST4_L, 2, 0x0);
} else {
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_2_0, 2,
m->vsync_end - m->vdisplay);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_BEF_1_0, 2,
m->vsync_start - m->vdisplay);
hdmi_reg_writev(hdata, HDMI_V2_BLANK_0, 2, m->vtotal);
hdmi_reg_writev(hdata, HDMI_V1_BLANK_0, 2,
m->vtotal - m->vdisplay);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F0_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F1_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_2_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_1_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_2_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_1_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_TG_VACT_ST_L, 2,
m->vtotal - m->vdisplay);
hdmi_reg_writev(hdata, HDMI_TG_VACT_SZ_L, 2, m->vdisplay);
}
hdmi_reg_writev(hdata, HDMI_H_SYNC_START_0, 2,
m->hsync_start - m->hdisplay - 2);
hdmi_reg_writev(hdata, HDMI_H_SYNC_END_0, 2,
m->hsync_end - m->hdisplay - 2);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_1_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_2_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_3_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_4_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_5_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_VACT_SPACE_6_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F2_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F3_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F4_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_BLANK_F5_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_3_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_4_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_5_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_6_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_3_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_4_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_5_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_V_SYNC_LINE_AFT_PXL_6_0, 2, 0xffff);
hdmi_reg_writev(hdata, HDMI_TG_H_FSZ_L, 2, m->htotal);
hdmi_reg_writev(hdata, HDMI_TG_HACT_ST_L, 2,
m->htotal - m->hdisplay - hquirk);
hdmi_reg_writev(hdata, HDMI_TG_HACT_SZ_L, 2, m->hdisplay + hquirk);
hdmi_reg_writev(hdata, HDMI_TG_V_FSZ_L, 2, m->vtotal);
if (hdata->drv_data == &exynos5433_hdmi_driver_data)
hdmi_reg_writeb(hdata, HDMI_TG_DECON_EN, 1);
}
static void hdmi_mode_apply(struct hdmi_context *hdata)
{
if (hdata->drv_data->type == HDMI_TYPE13)
hdmi_v13_mode_apply(hdata);
else
hdmi_v14_mode_apply(hdata);
hdmi_start(hdata, true);
}
static void hdmiphy_conf_reset(struct hdmi_context *hdata)
{
hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, 0, 1);
usleep_range(10000, 12000);
hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, ~0, 1);
usleep_range(10000, 12000);
hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);
usleep_range(10000, 12000);
hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT);
usleep_range(10000, 12000);
}
static void hdmiphy_enable_mode_set(struct hdmi_context *hdata, bool enable)
{
u8 v = enable ? HDMI_PHY_ENABLE_MODE_SET : HDMI_PHY_DISABLE_MODE_SET;
if (hdata->drv_data == &exynos5433_hdmi_driver_data)
writel(v, hdata->regs_hdmiphy + HDMIPHY5433_MODE_SET_DONE);
}
static void hdmiphy_conf_apply(struct hdmi_context *hdata)
{
struct drm_display_mode *m = &hdata->encoder.crtc->state->mode;
int ret;
const u8 *phy_conf;
ret = hdmi_find_phy_conf(hdata, m->clock * 1000);
if (ret < 0) {
DRM_ERROR("failed to find hdmiphy conf\n");
return;
}
phy_conf = hdata->drv_data->phy_confs.data[ret].conf;
hdmi_clk_set_parents(hdata, false);
hdmiphy_conf_reset(hdata);
hdmiphy_enable_mode_set(hdata, true);
ret = hdmiphy_reg_write_buf(hdata, 0, phy_conf, 32);
if (ret) {
DRM_ERROR("failed to configure hdmiphy\n");
return;
}
hdmiphy_enable_mode_set(hdata, false);
hdmi_clk_set_parents(hdata, true);
usleep_range(10000, 12000);
hdmiphy_wait_for_pll(hdata);
}
/* Should be called with hdata->mutex mutex held */
static void hdmi_conf_apply(struct hdmi_context *hdata)
{
hdmi_start(hdata, false);
hdmi_conf_init(hdata);
hdmi_audio_config(hdata);
hdmi_mode_apply(hdata);
hdmi_audio_control(hdata);
}
static void hdmi_set_refclk(struct hdmi_context *hdata, bool on)
{
if (!hdata->sysreg)
return;
regmap_update_bits(hdata->sysreg, EXYNOS5433_SYSREG_DISP_HDMI_PHY,
SYSREG_HDMI_REFCLK_INT_CLK, on ? ~0 : 0);
}
/* Should be called with hdata->mutex mutex held. */
static void hdmiphy_enable(struct hdmi_context *hdata)
{
if (hdata->powered)
return;
pm_runtime_get_sync(hdata->dev);
if (regulator_bulk_enable(ARRAY_SIZE(supply), hdata->regul_bulk))
DRM_DEBUG_KMS("failed to enable regulator bulk\n");
regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
PMU_HDMI_PHY_ENABLE_BIT, 1);
hdmi_set_refclk(hdata, true);
hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, 0, HDMI_PHY_POWER_OFF_EN);
hdmiphy_conf_apply(hdata);
hdata->powered = true;
}
/* Should be called with hdata->mutex mutex held. */
static void hdmiphy_disable(struct hdmi_context *hdata)
{
if (!hdata->powered)
return;
hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_EN);
hdmi_reg_writemask(hdata, HDMI_PHY_CON_0, ~0, HDMI_PHY_POWER_OFF_EN);
hdmi_set_refclk(hdata, false);
regmap_update_bits(hdata->pmureg, PMU_HDMI_PHY_CONTROL,
PMU_HDMI_PHY_ENABLE_BIT, 0);
regulator_bulk_disable(ARRAY_SIZE(supply), hdata->regul_bulk);
pm_runtime_put_sync(hdata->dev);
hdata->powered = false;
}
static void hdmi_enable(struct drm_encoder *encoder)
{
struct hdmi_context *hdata = encoder_to_hdmi(encoder);
mutex_lock(&hdata->mutex);
hdmiphy_enable(hdata);
hdmi_conf_apply(hdata);
mutex_unlock(&hdata->mutex);
}
static void hdmi_disable(struct drm_encoder *encoder)
{
struct hdmi_context *hdata = encoder_to_hdmi(encoder);
mutex_lock(&hdata->mutex);
if (hdata->powered) {
/*
* The SFRs of VP and Mixer are updated by Vertical Sync of
* Timing generator which is a part of HDMI so the sequence
* to disable TV Subsystem should be as following,
* VP -> Mixer -> HDMI
*
* To achieve such sequence HDMI is disabled together with
* HDMI PHY, via pipe clock callback.
*/
mutex_unlock(&hdata->mutex);
cancel_delayed_work(&hdata->hotplug_work);
cec_notifier_set_phys_addr(hdata->notifier,
CEC_PHYS_ADDR_INVALID);
return;
}
mutex_unlock(&hdata->mutex);
}
static const struct drm_encoder_helper_funcs exynos_hdmi_encoder_helper_funcs = {
.mode_fixup = hdmi_mode_fixup,
.enable = hdmi_enable,
.disable = hdmi_disable,
};
static const struct drm_encoder_funcs exynos_hdmi_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static void hdmi_audio_shutdown(struct device *dev, void *data)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
mutex_lock(&hdata->mutex);
hdata->audio.mute = true;
if (hdata->powered)
hdmi_audio_control(hdata);
mutex_unlock(&hdata->mutex);
}
static int hdmi_audio_hw_params(struct device *dev, void *data,
struct hdmi_codec_daifmt *daifmt,
struct hdmi_codec_params *params)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
if (daifmt->fmt != HDMI_I2S || daifmt->bit_clk_inv ||
daifmt->frame_clk_inv || daifmt->bit_clk_master ||
daifmt->frame_clk_master) {
dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
daifmt->bit_clk_inv, daifmt->frame_clk_inv,
daifmt->bit_clk_master,
daifmt->frame_clk_master);
return -EINVAL;
}
mutex_lock(&hdata->mutex);
hdata->audio.params = *params;
if (hdata->powered) {
hdmi_audio_config(hdata);
hdmi_audio_infoframe_apply(hdata);
}
mutex_unlock(&hdata->mutex);
return 0;
}
static int hdmi_audio_digital_mute(struct device *dev, void *data, bool mute)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
mutex_lock(&hdata->mutex);
hdata->audio.mute = mute;
if (hdata->powered)
hdmi_audio_control(hdata);
mutex_unlock(&hdata->mutex);
return 0;
}
static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
size_t len)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
struct drm_connector *connector = &hdata->connector;
memcpy(buf, connector->eld, min(sizeof(connector->eld), len));
return 0;
}
static const struct hdmi_codec_ops audio_codec_ops = {
.hw_params = hdmi_audio_hw_params,
.audio_shutdown = hdmi_audio_shutdown,
.digital_mute = hdmi_audio_digital_mute,
.get_eld = hdmi_audio_get_eld,
};
static int hdmi_register_audio_device(struct hdmi_context *hdata)
{
struct hdmi_codec_pdata codec_data = {
.ops = &audio_codec_ops,
.max_i2s_channels = 6,
.i2s = 1,
};
hdata->audio.pdev = platform_device_register_data(
hdata->dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
&codec_data, sizeof(codec_data));
return PTR_ERR_OR_ZERO(hdata->audio.pdev);
}
static void hdmi_hotplug_work_func(struct work_struct *work)
{
struct hdmi_context *hdata;
hdata = container_of(work, struct hdmi_context, hotplug_work.work);
if (hdata->drm_dev)
drm_helper_hpd_irq_event(hdata->drm_dev);
}
static irqreturn_t hdmi_irq_thread(int irq, void *arg)
{
struct hdmi_context *hdata = arg;
mod_delayed_work(system_wq, &hdata->hotplug_work,
msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS));
return IRQ_HANDLED;
}
static int hdmi_clks_get(struct hdmi_context *hdata,
const struct string_array_spec *names,
struct clk **clks)
{
struct device *dev = hdata->dev;
int i;
for (i = 0; i < names->count; ++i) {
struct clk *clk = devm_clk_get(dev, names->data[i]);
if (IS_ERR(clk)) {
int ret = PTR_ERR(clk);
dev_err(dev, "Cannot get clock %s, %d\n",
names->data[i], ret);
return ret;
}
clks[i] = clk;
}
return 0;
}
static int hdmi_clk_init(struct hdmi_context *hdata)
{
const struct hdmi_driver_data *drv_data = hdata->drv_data;
int count = drv_data->clk_gates.count + drv_data->clk_muxes.count;
struct device *dev = hdata->dev;
struct clk **clks;
int ret;
if (!count)
return 0;
clks = devm_kzalloc(dev, sizeof(*clks) * count, GFP_KERNEL);
if (!clks)
return -ENOMEM;
hdata->clk_gates = clks;
hdata->clk_muxes = clks + drv_data->clk_gates.count;
ret = hdmi_clks_get(hdata, &drv_data->clk_gates, hdata->clk_gates);
if (ret)
return ret;
return hdmi_clks_get(hdata, &drv_data->clk_muxes, hdata->clk_muxes);
}
static void hdmiphy_clk_enable(struct exynos_drm_clk *clk, bool enable)
{
struct hdmi_context *hdata = container_of(clk, struct hdmi_context,
phy_clk);
mutex_lock(&hdata->mutex);
if (enable)
hdmiphy_enable(hdata);
else
hdmiphy_disable(hdata);
mutex_unlock(&hdata->mutex);
}
static int hdmi_bridge_init(struct hdmi_context *hdata)
{
struct device *dev = hdata->dev;
struct device_node *ep, *np;
ep = of_graph_get_endpoint_by_regs(dev->of_node, 1, -1);
if (!ep)
return 0;
np = of_graph_get_remote_port_parent(ep);
of_node_put(ep);
if (!np) {
DRM_ERROR("failed to get remote port parent");
return -EINVAL;
}
hdata->bridge = of_drm_find_bridge(np);
of_node_put(np);
if (!hdata->bridge)
return -EPROBE_DEFER;
return 0;
}
static int hdmi_resources_init(struct hdmi_context *hdata)
{
struct device *dev = hdata->dev;
int i, ret;
DRM_DEBUG_KMS("HDMI resource init\n");
hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
if (IS_ERR(hdata->hpd_gpio)) {
DRM_ERROR("cannot get hpd gpio property\n");
return PTR_ERR(hdata->hpd_gpio);
}
hdata->irq = gpiod_to_irq(hdata->hpd_gpio);
if (hdata->irq < 0) {
DRM_ERROR("failed to get GPIO irq\n");
return hdata->irq;
}
ret = hdmi_clk_init(hdata);
if (ret)
return ret;
ret = hdmi_clk_set_parents(hdata, false);
if (ret)
return ret;
for (i = 0; i < ARRAY_SIZE(supply); ++i)
hdata->regul_bulk[i].supply = supply[i];
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(supply), hdata->regul_bulk);
if (ret) {
if (ret != -EPROBE_DEFER)
DRM_ERROR("failed to get regulators\n");
return ret;
}
hdata->reg_hdmi_en = devm_regulator_get_optional(dev, "hdmi-en");
if (PTR_ERR(hdata->reg_hdmi_en) != -ENODEV) {
if (IS_ERR(hdata->reg_hdmi_en))
return PTR_ERR(hdata->reg_hdmi_en);
ret = regulator_enable(hdata->reg_hdmi_en);
if (ret) {
DRM_ERROR("failed to enable hdmi-en regulator\n");
return ret;
}
}
return hdmi_bridge_init(hdata);
}
static const struct of_device_id hdmi_match_types[] = {
{
.compatible = "samsung,exynos4210-hdmi",
.data = &exynos4210_hdmi_driver_data,
}, {
.compatible = "samsung,exynos4212-hdmi",
.data = &exynos4212_hdmi_driver_data,
}, {
.compatible = "samsung,exynos5420-hdmi",
.data = &exynos5420_hdmi_driver_data,
}, {
.compatible = "samsung,exynos5433-hdmi",
.data = &exynos5433_hdmi_driver_data,
}, {
/* end node */
}
};
MODULE_DEVICE_TABLE (of, hdmi_match_types);
static int hdmi_bind(struct device *dev, struct device *master, void *data)
{
struct drm_device *drm_dev = data;
struct hdmi_context *hdata = dev_get_drvdata(dev);
struct drm_encoder *encoder = &hdata->encoder;
struct exynos_drm_crtc *crtc;
int ret;
hdata->drm_dev = drm_dev;
hdata->phy_clk.enable = hdmiphy_clk_enable;
drm_encoder_init(drm_dev, encoder, &exynos_hdmi_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
drm_encoder_helper_add(encoder, &exynos_hdmi_encoder_helper_funcs);
ret = exynos_drm_set_possible_crtcs(encoder, EXYNOS_DISPLAY_TYPE_HDMI);
if (ret < 0)
return ret;
crtc = exynos_drm_crtc_get_by_type(drm_dev, EXYNOS_DISPLAY_TYPE_HDMI);
crtc->pipe_clk = &hdata->phy_clk;
ret = hdmi_create_connector(encoder);
if (ret) {
DRM_ERROR("failed to create connector ret = %d\n", ret);
drm_encoder_cleanup(encoder);
return ret;
}
return 0;
}
static void hdmi_unbind(struct device *dev, struct device *master, void *data)
{
}
static const struct component_ops hdmi_component_ops = {
.bind = hdmi_bind,
.unbind = hdmi_unbind,
};
static int hdmi_get_ddc_adapter(struct hdmi_context *hdata)
{
const char *compatible_str = "samsung,exynos4210-hdmiddc";
struct device_node *np;
struct i2c_adapter *adpt;
np = of_find_compatible_node(NULL, NULL, compatible_str);
if (np)
np = of_get_next_parent(np);
else
np = of_parse_phandle(hdata->dev->of_node, "ddc", 0);
if (!np) {
DRM_ERROR("Failed to find ddc node in device tree\n");
return -ENODEV;
}
adpt = of_find_i2c_adapter_by_node(np);
of_node_put(np);
if (!adpt) {
DRM_INFO("Failed to get ddc i2c adapter by node\n");
return -EPROBE_DEFER;
}
hdata->ddc_adpt = adpt;
return 0;
}
static int hdmi_get_phy_io(struct hdmi_context *hdata)
{
const char *compatible_str = "samsung,exynos4212-hdmiphy";
struct device_node *np;
int ret = 0;
np = of_find_compatible_node(NULL, NULL, compatible_str);
if (!np) {
np = of_parse_phandle(hdata->dev->of_node, "phy", 0);
if (!np) {
DRM_ERROR("Failed to find hdmiphy node in device tree\n");
return -ENODEV;
}
}
if (hdata->drv_data->is_apb_phy) {
hdata->regs_hdmiphy = of_iomap(np, 0);
if (!hdata->regs_hdmiphy) {
DRM_ERROR("failed to ioremap hdmi phy\n");
ret = -ENOMEM;
goto out;
}
} else {
hdata->hdmiphy_port = of_find_i2c_device_by_node(np);
if (!hdata->hdmiphy_port) {
DRM_INFO("Failed to get hdmi phy i2c client\n");
ret = -EPROBE_DEFER;
goto out;
}
}
out:
of_node_put(np);
return ret;
}
static int hdmi_probe(struct platform_device *pdev)
{
struct hdmi_audio_infoframe *audio_infoframe;
struct device *dev = &pdev->dev;
struct hdmi_context *hdata;
struct resource *res;
int ret;
hdata = devm_kzalloc(dev, sizeof(struct hdmi_context), GFP_KERNEL);
if (!hdata)
return -ENOMEM;
hdata->drv_data = of_device_get_match_data(dev);
platform_set_drvdata(pdev, hdata);
hdata->dev = dev;
mutex_init(&hdata->mutex);
ret = hdmi_resources_init(hdata);
if (ret) {
if (ret != -EPROBE_DEFER)
DRM_ERROR("hdmi_resources_init failed\n");
return ret;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hdata->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(hdata->regs)) {
ret = PTR_ERR(hdata->regs);
return ret;
}
ret = hdmi_get_ddc_adapter(hdata);
if (ret)
return ret;
ret = hdmi_get_phy_io(hdata);
if (ret)
goto err_ddc;
INIT_DELAYED_WORK(&hdata->hotplug_work, hdmi_hotplug_work_func);
ret = devm_request_threaded_irq(dev, hdata->irq, NULL,
hdmi_irq_thread, IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"hdmi", hdata);
if (ret) {
DRM_ERROR("failed to register hdmi interrupt\n");
goto err_hdmiphy;
}
hdata->pmureg = syscon_regmap_lookup_by_phandle(dev->of_node,
"samsung,syscon-phandle");
if (IS_ERR(hdata->pmureg)) {
DRM_ERROR("syscon regmap lookup failed.\n");
ret = -EPROBE_DEFER;
goto err_hdmiphy;
}
if (hdata->drv_data->has_sysreg) {
hdata->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
"samsung,sysreg-phandle");
if (IS_ERR(hdata->sysreg)) {
DRM_ERROR("sysreg regmap lookup failed.\n");
ret = -EPROBE_DEFER;
goto err_hdmiphy;
}
}
hdata->notifier = cec_notifier_get(&pdev->dev);
if (hdata->notifier == NULL) {
ret = -ENOMEM;
goto err_hdmiphy;
}
pm_runtime_enable(dev);
audio_infoframe = &hdata->audio.infoframe;
hdmi_audio_infoframe_init(audio_infoframe);
audio_infoframe->coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
audio_infoframe->sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
audio_infoframe->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
audio_infoframe->channels = 2;
ret = hdmi_register_audio_device(hdata);
if (ret)
goto err_notifier_put;
ret = component_add(&pdev->dev, &hdmi_component_ops);
if (ret)
goto err_unregister_audio;
return ret;
err_unregister_audio:
platform_device_unregister(hdata->audio.pdev);
err_notifier_put:
cec_notifier_put(hdata->notifier);
pm_runtime_disable(dev);
err_hdmiphy:
if (hdata->hdmiphy_port)
put_device(&hdata->hdmiphy_port->dev);
if (hdata->regs_hdmiphy)
iounmap(hdata->regs_hdmiphy);
err_ddc:
put_device(&hdata->ddc_adpt->dev);
return ret;
}
static int hdmi_remove(struct platform_device *pdev)
{
struct hdmi_context *hdata = platform_get_drvdata(pdev);
cancel_delayed_work_sync(&hdata->hotplug_work);
cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID);
component_del(&pdev->dev, &hdmi_component_ops);
platform_device_unregister(hdata->audio.pdev);
cec_notifier_put(hdata->notifier);
pm_runtime_disable(&pdev->dev);
if (!IS_ERR(hdata->reg_hdmi_en))
regulator_disable(hdata->reg_hdmi_en);
if (hdata->hdmiphy_port)
put_device(&hdata->hdmiphy_port->dev);
if (hdata->regs_hdmiphy)
iounmap(hdata->regs_hdmiphy);
put_device(&hdata->ddc_adpt->dev);
mutex_destroy(&hdata->mutex);
return 0;
}
static int __maybe_unused exynos_hdmi_suspend(struct device *dev)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
hdmi_clk_disable_gates(hdata);
return 0;
}
static int __maybe_unused exynos_hdmi_resume(struct device *dev)
{
struct hdmi_context *hdata = dev_get_drvdata(dev);
int ret;
ret = hdmi_clk_enable_gates(hdata);
if (ret < 0)
return ret;
return 0;
}
static const struct dev_pm_ops exynos_hdmi_pm_ops = {
SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
};
struct platform_driver hdmi_driver = {
.probe = hdmi_probe,
.remove = hdmi_remove,
.driver = {
.name = "exynos-hdmi",
.owner = THIS_MODULE,
.pm = &exynos_hdmi_pm_ops,
.of_match_table = hdmi_match_types,
},
};
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