/*
* Copyright (C) 2012 Avionic Design GmbH
* Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
*
* 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/debugfs.h>
#include <linux/gpio.h>
#include <linux/hdmi.h>
#include <linux/math64.h>
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_probe_helper.h>
#include "hda.h"
#include "hdmi.h"
#include "drm.h"
#include "dc.h"
#include "trace.h"
#define HDMI_ELD_BUFFER_SIZE 96
struct tmds_config {
unsigned int pclk;
u32 pll0;
u32 pll1;
u32 pe_current;
u32 drive_current;
u32 peak_current;
};
struct tegra_hdmi_config {
const struct tmds_config *tmds;
unsigned int num_tmds;
unsigned long fuse_override_offset;
u32 fuse_override_value;
bool has_sor_io_peak_current;
bool has_hda;
bool has_hbr;
};
struct tegra_hdmi {
struct host1x_client client;
struct tegra_output output;
struct device *dev;
struct regulator *hdmi;
struct regulator *pll;
struct regulator *vdd;
void __iomem *regs;
unsigned int irq;
struct clk *clk_parent;
struct clk *clk;
struct reset_control *rst;
const struct tegra_hdmi_config *config;
unsigned int audio_source;
struct tegra_hda_format format;
unsigned int pixel_clock;
bool stereo;
bool dvi;
struct drm_info_list *debugfs_files;
};
static inline struct tegra_hdmi *
host1x_client_to_hdmi(struct host1x_client *client)
{
return container_of(client, struct tegra_hdmi, client);
}
static inline struct tegra_hdmi *to_hdmi(struct tegra_output *output)
{
return container_of(output, struct tegra_hdmi, output);
}
#define HDMI_AUDIOCLK_FREQ 216000000
#define HDMI_REKEY_DEFAULT 56
enum {
AUTO = 0,
SPDIF,
HDA,
};
static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi,
unsigned int offset)
{
u32 value = readl(hdmi->regs + (offset << 2));
trace_hdmi_readl(hdmi->dev, offset, value);
return value;
}
static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value,
unsigned int offset)
{
trace_hdmi_writel(hdmi->dev, offset, value);
writel(value, hdmi->regs + (offset << 2));
}
struct tegra_hdmi_audio_config {
unsigned int n;
unsigned int cts;
unsigned int aval;
};
static const struct tmds_config tegra20_tmds_config[] = {
{ /* slow pixel clock modes */
.pclk = 27000000,
.pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
SOR_PLL_TX_REG_LOAD(3),
.pll1 = SOR_PLL_TMDS_TERM_ENABLE,
.pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
PE_CURRENT1(PE_CURRENT_0_0_mA) |
PE_CURRENT2(PE_CURRENT_0_0_mA) |
PE_CURRENT3(PE_CURRENT_0_0_mA),
.drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
},
{ /* high pixel clock modes */
.pclk = UINT_MAX,
.pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
SOR_PLL_TX_REG_LOAD(3),
.pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
.pe_current = PE_CURRENT0(PE_CURRENT_6_0_mA) |
PE_CURRENT1(PE_CURRENT_6_0_mA) |
PE_CURRENT2(PE_CURRENT_6_0_mA) |
PE_CURRENT3(PE_CURRENT_6_0_mA),
.drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
},
};
static const struct tmds_config tegra30_tmds_config[] = {
{ /* 480p modes */
.pclk = 27000000,
.pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
SOR_PLL_TX_REG_LOAD(0),
.pll1 = SOR_PLL_TMDS_TERM_ENABLE,
.pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
PE_CURRENT1(PE_CURRENT_0_0_mA) |
PE_CURRENT2(PE_CURRENT_0_0_mA) |
PE_CURRENT3(PE_CURRENT_0_0_mA),
.drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
}, { /* 720p modes */
.pclk = 74250000,
.pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
SOR_PLL_TX_REG_LOAD(0),
.pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
.pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
PE_CURRENT1(PE_CURRENT_5_0_mA) |
PE_CURRENT2(PE_CURRENT_5_0_mA) |
PE_CURRENT3(PE_CURRENT_5_0_mA),
.drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
}, { /* 1080p modes */
.pclk = UINT_MAX,
.pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(3) |
SOR_PLL_TX_REG_LOAD(0),
.pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
.pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
PE_CURRENT1(PE_CURRENT_5_0_mA) |
PE_CURRENT2(PE_CURRENT_5_0_mA) |
PE_CURRENT3(PE_CURRENT_5_0_mA),
.drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
},
};
static const struct tmds_config tegra114_tmds_config[] = {
{ /* 480p/576p / 25.2MHz/27MHz modes */
.pclk = 27000000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
PE_CURRENT1(PE_CURRENT_0_mA_T114) |
PE_CURRENT2(PE_CURRENT_0_mA_T114) |
PE_CURRENT3(PE_CURRENT_0_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 720p / 74.25MHz modes */
.pclk = 74250000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) |
PE_CURRENT1(PE_CURRENT_15_mA_T114) |
PE_CURRENT2(PE_CURRENT_15_mA_T114) |
PE_CURRENT3(PE_CURRENT_15_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 1080p / 148.5MHz modes */
.pclk = 148500000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) |
PE_CURRENT1(PE_CURRENT_10_mA_T114) |
PE_CURRENT2(PE_CURRENT_10_mA_T114) |
PE_CURRENT3(PE_CURRENT_10_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 225/297MHz modes */
.pclk = UINT_MAX,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7)
| SOR_PLL_TMDS_TERM_ENABLE,
.pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
PE_CURRENT1(PE_CURRENT_0_mA_T114) |
PE_CURRENT2(PE_CURRENT_0_mA_T114) |
PE_CURRENT3(PE_CURRENT_0_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA),
},
};
static const struct tmds_config tegra124_tmds_config[] = {
{ /* 480p/576p / 25.2MHz/27MHz modes */
.pclk = 27000000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
PE_CURRENT1(PE_CURRENT_0_mA_T114) |
PE_CURRENT2(PE_CURRENT_0_mA_T114) |
PE_CURRENT3(PE_CURRENT_0_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 720p / 74.25MHz modes */
.pclk = 74250000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) |
PE_CURRENT1(PE_CURRENT_15_mA_T114) |
PE_CURRENT2(PE_CURRENT_15_mA_T114) |
PE_CURRENT3(PE_CURRENT_15_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 1080p / 148.5MHz modes */
.pclk = 148500000,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
SOR_PLL_TMDS_TERMADJ(0),
.pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) |
PE_CURRENT1(PE_CURRENT_10_mA_T114) |
PE_CURRENT2(PE_CURRENT_10_mA_T114) |
PE_CURRENT3(PE_CURRENT_10_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
}, { /* 225/297MHz modes */
.pclk = UINT_MAX,
.pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL,
.pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7)
| SOR_PLL_TMDS_TERM_ENABLE,
.pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
PE_CURRENT1(PE_CURRENT_0_mA_T114) |
PE_CURRENT2(PE_CURRENT_0_mA_T114) |
PE_CURRENT3(PE_CURRENT_0_mA_T114),
.drive_current =
DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) |
DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114),
.peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) |
PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA),
},
};
static int
tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pix_clock,
struct tegra_hdmi_audio_config *config)
{
const unsigned int afreq = 128 * audio_freq;
const unsigned int min_n = afreq / 1500;
const unsigned int max_n = afreq / 300;
const unsigned int ideal_n = afreq / 1000;
int64_t min_err = (uint64_t)-1 >> 1;
unsigned int min_delta = -1;
int n;
memset(config, 0, sizeof(*config));
config->n = -1;
for (n = min_n; n <= max_n; n++) {
uint64_t cts_f, aval_f;
unsigned int delta;
int64_t cts, err;
/* compute aval in 48.16 fixed point */
aval_f = ((int64_t)24000000 << 16) * n;
do_div(aval_f, afreq);
/* It should round without any rest */
if (aval_f & 0xFFFF)
continue;
/* Compute cts in 48.16 fixed point */
cts_f = ((int64_t)pix_clock << 16) * n;
do_div(cts_f, afreq);
/* Round it to the nearest integer */
cts = (cts_f & ~0xFFFF) + ((cts_f & BIT(15)) << 1);
delta = abs(n - ideal_n);
/* Compute the absolute error */
err = abs((int64_t)cts_f - cts);
if (err < min_err || (err == min_err && delta < min_delta)) {
config->n = n;
config->cts = cts >> 16;
config->aval = aval_f >> 16;
min_delta = delta;
min_err = err;
}
}
return config->n != -1 ? 0 : -EINVAL;
}
static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi)
{
const unsigned int freqs[] = {
32000, 44100, 48000, 88200, 96000, 176400, 192000
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(freqs); i++) {
unsigned int f = freqs[i];
unsigned int eight_half;
unsigned int delta;
u32 value;
if (f > 96000)
delta = 2;
else if (f > 48000)
delta = 6;
else
delta = 9;
eight_half = (8 * HDMI_AUDIOCLK_FREQ) / (f * 128);
value = AUDIO_FS_LOW(eight_half - delta) |
AUDIO_FS_HIGH(eight_half + delta);
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_FS(i));
}
}
static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value)
{
static const struct {
unsigned int sample_rate;
unsigned int offset;
} regs[] = {
{ 32000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320 },
{ 44100, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441 },
{ 48000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480 },
{ 88200, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882 },
{ 96000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960 },
{ 176400, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764 },
{ 192000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920 },
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(regs); i++) {
if (regs[i].sample_rate == hdmi->format.sample_rate) {
tegra_hdmi_writel(hdmi, value, regs[i].offset);
break;
}
}
}
static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
{
struct tegra_hdmi_audio_config config;
u32 source, value;
int err;
switch (hdmi->audio_source) {
case HDA:
if (hdmi->config->has_hda)
source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_HDAL;
else
return -EINVAL;
break;
case SPDIF:
if (hdmi->config->has_hda)
source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
else
source = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
break;
default:
if (hdmi->config->has_hda)
source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
else
source = AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
break;
}
/*
* Tegra30 and later use a slightly modified version of the register
* layout to accomodate for changes related to supporting HDA as the
* audio input source for HDMI. The source select field has moved to
* the SOR_AUDIO_CNTRL0 register, but the error tolerance and frames
* per block fields remain in the AUDIO_CNTRL0 register.
*/
if (hdmi->config->has_hda) {
/*
* Inject null samples into the audio FIFO for every frame in
* which the codec did not receive any samples. This applies
* to stereo LPCM only.
*
* XXX: This seems to be a remnant of MCP days when this was
* used to work around issues with monitors not being able to
* play back system startup sounds early. It is possibly not
* needed on Linux at all.
*/
if (hdmi->format.channels == 2)
value = SOR_AUDIO_CNTRL0_INJECT_NULLSMPL;
else
value = 0;
value |= source;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
}
/*
* On Tegra20, HDA is not a supported audio source and the source
* select field is part of the AUDIO_CNTRL0 register.
*/
value = AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0) |
AUDIO_CNTRL0_ERROR_TOLERANCE(6);
if (!hdmi->config->has_hda)
value |= source;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
/*
* Advertise support for High Bit-Rate on Tegra114 and later.
*/
if (hdmi->config->has_hbr) {
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_SPARE0);
value |= SOR_AUDIO_SPARE0_HBR_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_SPARE0);
}
err = tegra_hdmi_get_audio_config(hdmi->format.sample_rate,
hdmi->pixel_clock, &config);
if (err < 0) {
dev_err(hdmi->dev,
"cannot set audio to %u Hz at %u Hz pixel clock\n",
hdmi->format.sample_rate, hdmi->pixel_clock);
return err;
}
dev_dbg(hdmi->dev, "audio: pixclk=%u, n=%u, cts=%u, aval=%u\n",
hdmi->pixel_clock, config.n, config.cts, config.aval);
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_HDMI_ACR_CTRL);
value = AUDIO_N_RESETF | AUDIO_N_GENERATE_ALTERNATE |
AUDIO_N_VALUE(config.n - 1);
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
tegra_hdmi_writel(hdmi, ACR_SUBPACK_N(config.n) | ACR_ENABLE,
HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH);
tegra_hdmi_writel(hdmi, ACR_SUBPACK_CTS(config.cts),
HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW);
value = SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1);
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_SPARE);
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_AUDIO_N);
value &= ~AUDIO_N_RESETF;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
if (hdmi->config->has_hda)
tegra_hdmi_write_aval(hdmi, config.aval);
tegra_hdmi_setup_audio_fs_tables(hdmi);
return 0;
}
static void tegra_hdmi_disable_audio(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
value &= ~GENERIC_CTRL_AUDIO;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
}
static void tegra_hdmi_enable_audio(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
value |= GENERIC_CTRL_AUDIO;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
}
static void tegra_hdmi_write_eld(struct tegra_hdmi *hdmi)
{
size_t length = drm_eld_size(hdmi->output.connector.eld), i;
u32 value;
for (i = 0; i < length; i++)
tegra_hdmi_writel(hdmi, i << 8 | hdmi->output.connector.eld[i],
HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
/*
* The HDA codec will always report an ELD buffer size of 96 bytes and
* the HDA codec driver will check that each byte read from the buffer
* is valid. Therefore every byte must be written, even if no 96 bytes
* were parsed from EDID.
*/
for (i = length; i < HDMI_ELD_BUFFER_SIZE; i++)
tegra_hdmi_writel(hdmi, i << 8 | 0,
HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
value = SOR_AUDIO_HDA_PRESENSE_VALID | SOR_AUDIO_HDA_PRESENSE_PRESENT;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
}
static inline u32 tegra_hdmi_subpack(const u8 *ptr, size_t size)
{
u32 value = 0;
size_t i;
for (i = size; i > 0; i--)
value = (value << 8) | ptr[i - 1];
return value;
}
static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi, const void *data,
size_t size)
{
const u8 *ptr = data;
unsigned long offset;
size_t i, j;
u32 value;
switch (ptr[0]) {
case HDMI_INFOFRAME_TYPE_AVI:
offset = HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER;
break;
case HDMI_INFOFRAME_TYPE_AUDIO:
offset = HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER;
break;
case HDMI_INFOFRAME_TYPE_VENDOR:
offset = HDMI_NV_PDISP_HDMI_GENERIC_HEADER;
break;
default:
dev_err(hdmi->dev, "unsupported infoframe type: %02x\n",
ptr[0]);
return;
}
value = INFOFRAME_HEADER_TYPE(ptr[0]) |
INFOFRAME_HEADER_VERSION(ptr[1]) |
INFOFRAME_HEADER_LEN(ptr[2]);
tegra_hdmi_writel(hdmi, value, offset);
offset++;
/*
* Each subpack contains 7 bytes, divided into:
* - subpack_low: bytes 0 - 3
* - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00)
*/
for (i = 3, j = 0; i < size; i += 7, j += 8) {
size_t rem = size - i, num = min_t(size_t, rem, 4);
value = tegra_hdmi_subpack(&ptr[i], num);
tegra_hdmi_writel(hdmi, value, offset++);
num = min_t(size_t, rem - num, 3);
value = tegra_hdmi_subpack(&ptr[i + 4], num);
tegra_hdmi_writel(hdmi, value, offset++);
}
}
static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
struct drm_display_mode *mode)
{
struct hdmi_avi_infoframe frame;
u8 buffer[17];
ssize_t err;
err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
&hdmi->output.connector, mode);
if (err < 0) {
dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err);
return;
}
err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack AVI infoframe: %zd\n", err);
return;
}
tegra_hdmi_write_infopack(hdmi, buffer, err);
}
static void tegra_hdmi_disable_avi_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
value &= ~INFOFRAME_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
}
static void tegra_hdmi_enable_avi_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
value |= INFOFRAME_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
}
static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
{
struct hdmi_audio_infoframe frame;
u8 buffer[14];
ssize_t err;
err = hdmi_audio_infoframe_init(&frame);
if (err < 0) {
dev_err(hdmi->dev, "failed to setup audio infoframe: %zd\n",
err);
return;
}
frame.channels = hdmi->format.channels;
err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack audio infoframe: %zd\n",
err);
return;
}
/*
* The audio infoframe has only one set of subpack registers, so the
* infoframe needs to be truncated. One set of subpack registers can
* contain 7 bytes. Including the 3 byte header only the first 10
* bytes can be programmed.
*/
tegra_hdmi_write_infopack(hdmi, buffer, min_t(size_t, 10, err));
}
static void tegra_hdmi_disable_audio_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
value &= ~INFOFRAME_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
}
static void tegra_hdmi_enable_audio_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
value |= INFOFRAME_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
}
static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
{
struct hdmi_vendor_infoframe frame;
u8 buffer[10];
ssize_t err;
hdmi_vendor_infoframe_init(&frame);
frame.s3d_struct = HDMI_3D_STRUCTURE_FRAME_PACKING;
err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n",
err);
return;
}
tegra_hdmi_write_infopack(hdmi, buffer, err);
}
static void tegra_hdmi_disable_stereo_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
value &= ~GENERIC_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
}
static void tegra_hdmi_enable_stereo_infoframe(struct tegra_hdmi *hdmi)
{
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
value |= GENERIC_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
}
static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi,
const struct tmds_config *tmds)
{
u32 value;
tegra_hdmi_writel(hdmi, tmds->pll0, HDMI_NV_PDISP_SOR_PLL0);
tegra_hdmi_writel(hdmi, tmds->pll1, HDMI_NV_PDISP_SOR_PLL1);
tegra_hdmi_writel(hdmi, tmds->pe_current, HDMI_NV_PDISP_PE_CURRENT);
tegra_hdmi_writel(hdmi, tmds->drive_current,
HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
value = tegra_hdmi_readl(hdmi, hdmi->config->fuse_override_offset);
value |= hdmi->config->fuse_override_value;
tegra_hdmi_writel(hdmi, value, hdmi->config->fuse_override_offset);
if (hdmi->config->has_sor_io_peak_current)
tegra_hdmi_writel(hdmi, tmds->peak_current,
HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT);
}
static bool tegra_output_is_hdmi(struct tegra_output *output)
{
struct edid *edid;
if (!output->connector.edid_blob_ptr)
return false;
edid = (struct edid *)output->connector.edid_blob_ptr->data;
return drm_detect_hdmi_monitor(edid);
}
static enum drm_connector_status
tegra_hdmi_connector_detect(struct drm_connector *connector, bool force)
{
struct tegra_output *output = connector_to_output(connector);
struct tegra_hdmi *hdmi = to_hdmi(output);
enum drm_connector_status status;
status = tegra_output_connector_detect(connector, force);
if (status == connector_status_connected)
return status;
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
return status;
}
#define DEBUGFS_REG32(_name) { .name = #_name, .offset = _name }
static const struct debugfs_reg32 tegra_hdmi_regs[] = {
DEBUGFS_REG32(HDMI_CTXSW),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE2),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CMODE),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB2),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB1),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_RI),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_MSB),
DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_LSB),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU0),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU_RDATA0),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU1),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU2),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_STATUS),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_STATUS),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_STATUS),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_HEADER),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_HIGH),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_KEEPOUT),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_WINDOW),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_STATUS),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_SUBPACK),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS1),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS2),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU0),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1_RDATA),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPARE),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS1),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS2),
DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_HDCPRIF_ROM_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CAP),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PWR),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TEST),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL2),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CSTM),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LVDS),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCA),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCB),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_BLANK),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_CTL),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(0)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(1)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(2)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(3)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(4)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(5)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(6)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(7)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(8)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(9)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(10)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(11)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(12)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(13)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(14)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(15)),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TRIG),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_MSCHECK),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG0),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG1),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG2),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(0)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(1)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(2)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(3)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(4)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(5)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(6)),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_PULSE_WIDTH),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_THRESHOLD),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_CNTRL0),
DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_N),
DEBUGFS_REG32(HDMI_NV_PDISP_HDCPRIF_ROM_TIMING),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_REFCLK),
DEBUGFS_REG32(HDMI_NV_PDISP_CRC_CONTROL),
DEBUGFS_REG32(HDMI_NV_PDISP_INPUT_CONTROL),
DEBUGFS_REG32(HDMI_NV_PDISP_SCRATCH),
DEBUGFS_REG32(HDMI_NV_PDISP_PE_CURRENT),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_CTRL),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG0),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG1),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG2),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_0),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_1),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_2),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_3),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_TRIG),
DEBUGFS_REG32(HDMI_NV_PDISP_KEY_SKEY_INDEX),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_CNTRL0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_SPARE0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH1),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE),
DEBUGFS_REG32(HDMI_NV_PDISP_INT_STATUS),
DEBUGFS_REG32(HDMI_NV_PDISP_INT_MASK),
DEBUGFS_REG32(HDMI_NV_PDISP_INT_ENABLE),
DEBUGFS_REG32(HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT),
};
static int tegra_hdmi_show_regs(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct tegra_hdmi *hdmi = node->info_ent->data;
struct drm_crtc *crtc = hdmi->output.encoder.crtc;
struct drm_device *drm = node->minor->dev;
unsigned int i;
int err = 0;
drm_modeset_lock_all(drm);
if (!crtc || !crtc->state->active) {
err = -EBUSY;
goto unlock;
}
for (i = 0; i < ARRAY_SIZE(tegra_hdmi_regs); i++) {
unsigned int offset = tegra_hdmi_regs[i].offset;
seq_printf(s, "%-56s %#05x %08x\n", tegra_hdmi_regs[i].name,
offset, tegra_hdmi_readl(hdmi, offset));
}
unlock:
drm_modeset_unlock_all(drm);
return err;
}
static struct drm_info_list debugfs_files[] = {
{ "regs", tegra_hdmi_show_regs, 0, NULL },
};
static int tegra_hdmi_late_register(struct drm_connector *connector)
{
struct tegra_output *output = connector_to_output(connector);
unsigned int i, count = ARRAY_SIZE(debugfs_files);
struct drm_minor *minor = connector->dev->primary;
struct dentry *root = connector->debugfs_entry;
struct tegra_hdmi *hdmi = to_hdmi(output);
int err;
hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),
GFP_KERNEL);
if (!hdmi->debugfs_files)
return -ENOMEM;
for (i = 0; i < count; i++)
hdmi->debugfs_files[i].data = hdmi;
err = drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor);
if (err < 0)
goto free;
return 0;
free:
kfree(hdmi->debugfs_files);
hdmi->debugfs_files = NULL;
return err;
}
static void tegra_hdmi_early_unregister(struct drm_connector *connector)
{
struct tegra_output *output = connector_to_output(connector);
struct drm_minor *minor = connector->dev->primary;
unsigned int count = ARRAY_SIZE(debugfs_files);
struct tegra_hdmi *hdmi = to_hdmi(output);
drm_debugfs_remove_files(hdmi->debugfs_files, count, minor);
kfree(hdmi->debugfs_files);
hdmi->debugfs_files = NULL;
}
static const struct drm_connector_funcs tegra_hdmi_connector_funcs = {
.reset = drm_atomic_helper_connector_reset,
.detect = tegra_hdmi_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = tegra_output_connector_destroy,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.late_register = tegra_hdmi_late_register,
.early_unregister = tegra_hdmi_early_unregister,
};
static enum drm_mode_status
tegra_hdmi_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct tegra_output *output = connector_to_output(connector);
struct tegra_hdmi *hdmi = to_hdmi(output);
unsigned long pclk = mode->clock * 1000;
enum drm_mode_status status = MODE_OK;
struct clk *parent;
long err;
parent = clk_get_parent(hdmi->clk_parent);
err = clk_round_rate(parent, pclk * 4);
if (err <= 0)
status = MODE_NOCLOCK;
return status;
}
static const struct drm_connector_helper_funcs
tegra_hdmi_connector_helper_funcs = {
.get_modes = tegra_output_connector_get_modes,
.mode_valid = tegra_hdmi_connector_mode_valid,
};
static const struct drm_encoder_funcs tegra_hdmi_encoder_funcs = {
.destroy = tegra_output_encoder_destroy,
};
static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder)
{
struct tegra_output *output = encoder_to_output(encoder);
struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
struct tegra_hdmi *hdmi = to_hdmi(output);
u32 value;
/*
* The following accesses registers of the display controller, so make
* sure it's only executed when the output is attached to one.
*/
if (dc) {
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value &= ~HDMI_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
tegra_dc_commit(dc);
}
if (!hdmi->dvi) {
if (hdmi->stereo)
tegra_hdmi_disable_stereo_infoframe(hdmi);
tegra_hdmi_disable_audio_infoframe(hdmi);
tegra_hdmi_disable_avi_infoframe(hdmi);
tegra_hdmi_disable_audio(hdmi);
}
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_ENABLE);
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_MASK);
pm_runtime_put(hdmi->dev);
}
static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder)
{
struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
unsigned int h_sync_width, h_front_porch, h_back_porch, i, rekey;
struct tegra_output *output = encoder_to_output(encoder);
struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
struct tegra_hdmi *hdmi = to_hdmi(output);
unsigned int pulse_start, div82;
int retries = 1000;
u32 value;
int err;
pm_runtime_get_sync(hdmi->dev);
/*
* Enable and unmask the HDA codec SCRATCH0 register interrupt. This
* is used for interoperability between the HDA codec driver and the
* HDMI driver.
*/
tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_ENABLE);
tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_MASK);
hdmi->pixel_clock = mode->clock * 1000;
h_sync_width = mode->hsync_end - mode->hsync_start;
h_back_porch = mode->htotal - mode->hsync_end;
h_front_porch = mode->hsync_start - mode->hdisplay;
err = clk_set_rate(hdmi->clk, hdmi->pixel_clock);
if (err < 0) {
dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n",
err);
}
DRM_DEBUG_KMS("HDMI clock rate: %lu Hz\n", clk_get_rate(hdmi->clk));
/* power up sequence */
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0);
value &= ~SOR_PLL_PDBG;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0);
usleep_range(10, 20);
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0);
value &= ~SOR_PLL_PWR;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0);
tegra_dc_writel(dc, VSYNC_H_POSITION(1),
DC_DISP_DISP_TIMING_OPTIONS);
tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE_888,
DC_DISP_DISP_COLOR_CONTROL);
/* video_preamble uses h_pulse2 */
pulse_start = 1 + h_sync_width + h_back_porch - 10;
tegra_dc_writel(dc, H_PULSE2_ENABLE, DC_DISP_DISP_SIGNAL_OPTIONS0);
value = PULSE_MODE_NORMAL | PULSE_POLARITY_HIGH | PULSE_QUAL_VACTIVE |
PULSE_LAST_END_A;
tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL);
value = PULSE_START(pulse_start) | PULSE_END(pulse_start + 8);
tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A);
value = VSYNC_WINDOW_END(0x210) | VSYNC_WINDOW_START(0x200) |
VSYNC_WINDOW_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_VSYNC_WINDOW);
if (dc->pipe)
value = HDMI_SRC_DISPLAYB;
else
value = HDMI_SRC_DISPLAYA;
if ((mode->hdisplay == 720) && ((mode->vdisplay == 480) ||
(mode->vdisplay == 576)))
tegra_hdmi_writel(hdmi,
value | ARM_VIDEO_RANGE_FULL,
HDMI_NV_PDISP_INPUT_CONTROL);
else
tegra_hdmi_writel(hdmi,
value | ARM_VIDEO_RANGE_LIMITED,
HDMI_NV_PDISP_INPUT_CONTROL);
div82 = clk_get_rate(hdmi->clk) / 1000000 * 4;
value = SOR_REFCLK_DIV_INT(div82 >> 2) | SOR_REFCLK_DIV_FRAC(div82);
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_REFCLK);
hdmi->dvi = !tegra_output_is_hdmi(output);
if (!hdmi->dvi) {
err = tegra_hdmi_setup_audio(hdmi);
if (err < 0)
hdmi->dvi = true;
}
if (hdmi->config->has_hda)
tegra_hdmi_write_eld(hdmi);
rekey = HDMI_REKEY_DEFAULT;
value = HDMI_CTRL_REKEY(rekey);
value |= HDMI_CTRL_MAX_AC_PACKET((h_sync_width + h_back_porch +
h_front_porch - rekey - 18) / 32);
if (!hdmi->dvi)
value |= HDMI_CTRL_ENABLE;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_CTRL);
if (!hdmi->dvi) {
tegra_hdmi_setup_avi_infoframe(hdmi, mode);
tegra_hdmi_setup_audio_infoframe(hdmi);
if (hdmi->stereo)
tegra_hdmi_setup_stereo_infoframe(hdmi);
}
/* TMDS CONFIG */
for (i = 0; i < hdmi->config->num_tmds; i++) {
if (hdmi->pixel_clock <= hdmi->config->tmds[i].pclk) {
tegra_hdmi_setup_tmds(hdmi, &hdmi->config->tmds[i]);
break;
}
}
tegra_hdmi_writel(hdmi,
SOR_SEQ_PU_PC(0) |
SOR_SEQ_PU_PC_ALT(0) |
SOR_SEQ_PD_PC(8) |
SOR_SEQ_PD_PC_ALT(8),
HDMI_NV_PDISP_SOR_SEQ_CTL);
value = SOR_SEQ_INST_WAIT_TIME(1) |
SOR_SEQ_INST_WAIT_UNITS_VSYNC |
SOR_SEQ_INST_HALT |
SOR_SEQ_INST_PIN_A_LOW |
SOR_SEQ_INST_PIN_B_LOW |
SOR_SEQ_INST_DRIVE_PWM_OUT_LO;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0));
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8));
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_CSTM);
value &= ~SOR_CSTM_ROTCLK(~0);
value |= SOR_CSTM_ROTCLK(2);
value |= SOR_CSTM_PLLDIV;
value &= ~SOR_CSTM_LVDS_ENABLE;
value &= ~SOR_CSTM_MODE_MASK;
value |= SOR_CSTM_MODE_TMDS;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM);
/* start SOR */
tegra_hdmi_writel(hdmi,
SOR_PWR_NORMAL_STATE_PU |
SOR_PWR_NORMAL_START_NORMAL |
SOR_PWR_SAFE_STATE_PD |
SOR_PWR_SETTING_NEW_TRIGGER,
HDMI_NV_PDISP_SOR_PWR);
tegra_hdmi_writel(hdmi,
SOR_PWR_NORMAL_STATE_PU |
SOR_PWR_NORMAL_START_NORMAL |
SOR_PWR_SAFE_STATE_PD |
SOR_PWR_SETTING_NEW_DONE,
HDMI_NV_PDISP_SOR_PWR);
do {
BUG_ON(--retries < 0);
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PWR);
} while (value & SOR_PWR_SETTING_NEW_PENDING);
value = SOR_STATE_ASY_CRCMODE_COMPLETE |
SOR_STATE_ASY_OWNER_HEAD0 |
SOR_STATE_ASY_SUBOWNER_BOTH |
SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A |
SOR_STATE_ASY_DEPOL_POS;
/* setup sync polarities */
if (mode->flags & DRM_MODE_FLAG_PHSYNC)
value |= SOR_STATE_ASY_HSYNCPOL_POS;
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
value |= SOR_STATE_ASY_HSYNCPOL_NEG;
if (mode->flags & DRM_MODE_FLAG_PVSYNC)
value |= SOR_STATE_ASY_VSYNCPOL_POS;
if (mode->flags & DRM_MODE_FLAG_NVSYNC)
value |= SOR_STATE_ASY_VSYNCPOL_NEG;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE2);
value = SOR_STATE_ASY_HEAD_OPMODE_AWAKE | SOR_STATE_ASY_ORMODE_NORMAL;
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE1);
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
tegra_hdmi_writel(hdmi, SOR_STATE_UPDATE, HDMI_NV_PDISP_SOR_STATE0);
tegra_hdmi_writel(hdmi, value | SOR_STATE_ATTACHED,
HDMI_NV_PDISP_SOR_STATE1);
tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value |= HDMI_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
tegra_dc_commit(dc);
if (!hdmi->dvi) {
tegra_hdmi_enable_avi_infoframe(hdmi);
tegra_hdmi_enable_audio_infoframe(hdmi);
tegra_hdmi_enable_audio(hdmi);
if (hdmi->stereo)
tegra_hdmi_enable_stereo_infoframe(hdmi);
}
/* TODO: add HDCP support */
}
static int
tegra_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct tegra_output *output = encoder_to_output(encoder);
struct tegra_dc *dc = to_tegra_dc(conn_state->crtc);
unsigned long pclk = crtc_state->mode.clock * 1000;
struct tegra_hdmi *hdmi = to_hdmi(output);
int err;
err = tegra_dc_state_setup_clock(dc, crtc_state, hdmi->clk_parent,
pclk, 0);
if (err < 0) {
dev_err(output->dev, "failed to setup CRTC state: %d\n", err);
return err;
}
return err;
}
static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = {
.disable = tegra_hdmi_encoder_disable,
.enable = tegra_hdmi_encoder_enable,
.atomic_check = tegra_hdmi_encoder_atomic_check,
};
static int tegra_hdmi_init(struct host1x_client *client)
{
struct drm_device *drm = dev_get_drvdata(client->parent);
struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
int err;
hdmi->output.dev = client->dev;
drm_connector_init(drm, &hdmi->output.connector,
&tegra_hdmi_connector_funcs,
DRM_MODE_CONNECTOR_HDMIA);
drm_connector_helper_add(&hdmi->output.connector,
&tegra_hdmi_connector_helper_funcs);
hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF;
drm_encoder_init(drm, &hdmi->output.encoder, &tegra_hdmi_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
drm_encoder_helper_add(&hdmi->output.encoder,
&tegra_hdmi_encoder_helper_funcs);
drm_connector_attach_encoder(&hdmi->output.connector,
&hdmi->output.encoder);
drm_connector_register(&hdmi->output.connector);
err = tegra_output_init(drm, &hdmi->output);
if (err < 0) {
dev_err(client->dev, "failed to initialize output: %d\n", err);
return err;
}
hdmi->output.encoder.possible_crtcs = 0x3;
err = regulator_enable(hdmi->hdmi);
if (err < 0) {
dev_err(client->dev, "failed to enable HDMI regulator: %d\n",
err);
return err;
}
err = regulator_enable(hdmi->pll);
if (err < 0) {
dev_err(hdmi->dev, "failed to enable PLL regulator: %d\n", err);
return err;
}
err = regulator_enable(hdmi->vdd);
if (err < 0) {
dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err);
return err;
}
return 0;
}
static int tegra_hdmi_exit(struct host1x_client *client)
{
struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
tegra_output_exit(&hdmi->output);
regulator_disable(hdmi->vdd);
regulator_disable(hdmi->pll);
regulator_disable(hdmi->hdmi);
return 0;
}
static const struct host1x_client_ops hdmi_client_ops = {
.init = tegra_hdmi_init,
.exit = tegra_hdmi_exit,
};
static const struct tegra_hdmi_config tegra20_hdmi_config = {
.tmds = tegra20_tmds_config,
.num_tmds = ARRAY_SIZE(tegra20_tmds_config),
.fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT,
.fuse_override_value = 1 << 31,
.has_sor_io_peak_current = false,
.has_hda = false,
.has_hbr = false,
};
static const struct tegra_hdmi_config tegra30_hdmi_config = {
.tmds = tegra30_tmds_config,
.num_tmds = ARRAY_SIZE(tegra30_tmds_config),
.fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT,
.fuse_override_value = 1 << 31,
.has_sor_io_peak_current = false,
.has_hda = true,
.has_hbr = false,
};
static const struct tegra_hdmi_config tegra114_hdmi_config = {
.tmds = tegra114_tmds_config,
.num_tmds = ARRAY_SIZE(tegra114_tmds_config),
.fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0,
.fuse_override_value = 1 << 31,
.has_sor_io_peak_current = true,
.has_hda = true,
.has_hbr = true,
};
static const struct tegra_hdmi_config tegra124_hdmi_config = {
.tmds = tegra124_tmds_config,
.num_tmds = ARRAY_SIZE(tegra124_tmds_config),
.fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0,
.fuse_override_value = 1 << 31,
.has_sor_io_peak_current = true,
.has_hda = true,
.has_hbr = true,
};
static const struct of_device_id tegra_hdmi_of_match[] = {
{ .compatible = "nvidia,tegra124-hdmi", .data = &tegra124_hdmi_config },
{ .compatible = "nvidia,tegra114-hdmi", .data = &tegra114_hdmi_config },
{ .compatible = "nvidia,tegra30-hdmi", .data = &tegra30_hdmi_config },
{ .compatible = "nvidia,tegra20-hdmi", .data = &tegra20_hdmi_config },
{ },
};
MODULE_DEVICE_TABLE(of, tegra_hdmi_of_match);
static irqreturn_t tegra_hdmi_irq(int irq, void *data)
{
struct tegra_hdmi *hdmi = data;
u32 value;
int err;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_INT_STATUS);
tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_INT_STATUS);
if (value & INT_CODEC_SCRATCH0) {
unsigned int format;
u32 value;
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0);
if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) {
format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK;
tegra_hda_parse_format(format, &hdmi->format);
err = tegra_hdmi_setup_audio(hdmi);
if (err < 0) {
tegra_hdmi_disable_audio_infoframe(hdmi);
tegra_hdmi_disable_audio(hdmi);
} else {
tegra_hdmi_setup_audio_infoframe(hdmi);
tegra_hdmi_enable_audio_infoframe(hdmi);
tegra_hdmi_enable_audio(hdmi);
}
} else {
tegra_hdmi_disable_audio_infoframe(hdmi);
tegra_hdmi_disable_audio(hdmi);
}
}
return IRQ_HANDLED;
}
static int tegra_hdmi_probe(struct platform_device *pdev)
{
struct tegra_hdmi *hdmi;
struct resource *regs;
int err;
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
return -ENOMEM;
hdmi->config = of_device_get_match_data(&pdev->dev);
hdmi->dev = &pdev->dev;
hdmi->audio_source = AUTO;
hdmi->stereo = false;
hdmi->dvi = false;
hdmi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(hdmi->clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
return PTR_ERR(hdmi->clk);
}
hdmi->rst = devm_reset_control_get(&pdev->dev, "hdmi");
if (IS_ERR(hdmi->rst)) {
dev_err(&pdev->dev, "failed to get reset\n");
return PTR_ERR(hdmi->rst);
}
hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent");
if (IS_ERR(hdmi->clk_parent))
return PTR_ERR(hdmi->clk_parent);
err = clk_set_parent(hdmi->clk, hdmi->clk_parent);
if (err < 0) {
dev_err(&pdev->dev, "failed to setup clocks: %d\n", err);
return err;
}
hdmi->hdmi = devm_regulator_get(&pdev->dev, "hdmi");
if (IS_ERR(hdmi->hdmi)) {
dev_err(&pdev->dev, "failed to get HDMI regulator\n");
return PTR_ERR(hdmi->hdmi);
}
hdmi->pll = devm_regulator_get(&pdev->dev, "pll");
if (IS_ERR(hdmi->pll)) {
dev_err(&pdev->dev, "failed to get PLL regulator\n");
return PTR_ERR(hdmi->pll);
}
hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd");
if (IS_ERR(hdmi->vdd)) {
dev_err(&pdev->dev, "failed to get VDD regulator\n");
return PTR_ERR(hdmi->vdd);
}
hdmi->output.dev = &pdev->dev;
err = tegra_output_probe(&hdmi->output);
if (err < 0)
return err;
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
if (IS_ERR(hdmi->regs))
return PTR_ERR(hdmi->regs);
err = platform_get_irq(pdev, 0);
if (err < 0)
return err;
hdmi->irq = err;
err = devm_request_irq(hdmi->dev, hdmi->irq, tegra_hdmi_irq, 0,
dev_name(hdmi->dev), hdmi);
if (err < 0) {
dev_err(&pdev->dev, "failed to request IRQ#%u: %d\n",
hdmi->irq, err);
return err;
}
platform_set_drvdata(pdev, hdmi);
pm_runtime_enable(&pdev->dev);
INIT_LIST_HEAD(&hdmi->client.list);
hdmi->client.ops = &hdmi_client_ops;
hdmi->client.dev = &pdev->dev;
err = host1x_client_register(&hdmi->client);
if (err < 0) {
dev_err(&pdev->dev, "failed to register host1x client: %d\n",
err);
return err;
}
return 0;
}
static int tegra_hdmi_remove(struct platform_device *pdev)
{
struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
int err;
pm_runtime_disable(&pdev->dev);
err = host1x_client_unregister(&hdmi->client);
if (err < 0) {
dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
err);
return err;
}
tegra_output_remove(&hdmi->output);
return 0;
}
#ifdef CONFIG_PM
static int tegra_hdmi_suspend(struct device *dev)
{
struct tegra_hdmi *hdmi = dev_get_drvdata(dev);
int err;
err = reset_control_assert(hdmi->rst);
if (err < 0) {
dev_err(dev, "failed to assert reset: %d\n", err);
return err;
}
usleep_range(1000, 2000);
clk_disable_unprepare(hdmi->clk);
return 0;
}
static int tegra_hdmi_resume(struct device *dev)
{
struct tegra_hdmi *hdmi = dev_get_drvdata(dev);
int err;
err = clk_prepare_enable(hdmi->clk);
if (err < 0) {
dev_err(dev, "failed to enable clock: %d\n", err);
return err;
}
usleep_range(1000, 2000);
err = reset_control_deassert(hdmi->rst);
if (err < 0) {
dev_err(dev, "failed to deassert reset: %d\n", err);
clk_disable_unprepare(hdmi->clk);
return err;
}
return 0;
}
#endif
static const struct dev_pm_ops tegra_hdmi_pm_ops = {
SET_RUNTIME_PM_OPS(tegra_hdmi_suspend, tegra_hdmi_resume, NULL)
};
struct platform_driver tegra_hdmi_driver = {
.driver = {
.name = "tegra-hdmi",
.of_match_table = tegra_hdmi_of_match,
.pm = &tegra_hdmi_pm_ops,
},
.probe = tegra_hdmi_probe,
.remove = tegra_hdmi_remove,
};
