From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/tegra/hdmi.c | 1914 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1914 insertions(+) create mode 100644 drivers/gpu/drm/tegra/hdmi.c (limited to 'drivers/gpu/drm/tegra/hdmi.c') diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c new file mode 100644 index 0000000000..80c760986d --- /dev/null +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -0,0 +1,1914 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#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; + + struct platform_device *audio_pdev; + struct mutex audio_lock; +}; + +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 void tegra_hdmi_audio_lock(struct tegra_hdmi *hdmi) +{ + mutex_lock(&hdmi->audio_lock); + disable_irq(hdmi->irq); +} + +static void tegra_hdmi_audio_unlock(struct tegra_hdmi *hdmi) +{ + enable_irq(hdmi->irq); + mutex_unlock(&hdmi->audio_lock); +} + +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 int tegra_hdmi_reconfigure_audio(struct tegra_hdmi *hdmi) +{ + int err; + + 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); + } + + return err; +} + +static bool tegra_output_is_hdmi(struct tegra_output *output) +{ + return output->connector.display_info.is_hdmi; +} + +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); + + 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; + + drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor); + + return 0; +} + +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 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; + int err; + + tegra_hdmi_audio_lock(hdmi); + + /* + * 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); + + hdmi->pixel_clock = 0; + + tegra_hdmi_audio_unlock(hdmi); + + err = host1x_client_suspend(&hdmi->client); + if (err < 0) + dev_err(hdmi->dev, "failed to suspend: %d\n", err); +} + +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; + + err = host1x_client_resume(&hdmi->client); + if (err < 0) { + dev_err(hdmi->dev, "failed to resume: %d\n", err); + return; + } + + tegra_hdmi_audio_lock(hdmi); + + /* + * 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 = dev_pm_opp_set_rate(hdmi->dev, 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) { + /* + * Make sure that the audio format has been configured before + * enabling audio, otherwise we may try to divide by zero. + */ + if (hdmi->format.sample_rate > 0) { + 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 */ + + tegra_hdmi_audio_unlock(hdmi); +} + +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_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms) +{ + struct tegra_hdmi *hdmi = data; + int ret = 0; + + tegra_hdmi_audio_lock(hdmi); + + hdmi->format.sample_rate = hparms->sample_rate; + hdmi->format.channels = hparms->channels; + + if (hdmi->pixel_clock && !hdmi->dvi) + ret = tegra_hdmi_reconfigure_audio(hdmi); + + tegra_hdmi_audio_unlock(hdmi); + + return ret; +} + +static int tegra_hdmi_audio_startup(struct device *dev, void *data) +{ + struct tegra_hdmi *hdmi = data; + int ret; + + ret = host1x_client_resume(&hdmi->client); + if (ret < 0) + dev_err(hdmi->dev, "failed to resume: %d\n", ret); + + return ret; +} + +static void tegra_hdmi_audio_shutdown(struct device *dev, void *data) +{ + struct tegra_hdmi *hdmi = data; + int ret; + + tegra_hdmi_audio_lock(hdmi); + + hdmi->format.sample_rate = 0; + hdmi->format.channels = 0; + + tegra_hdmi_audio_unlock(hdmi); + + ret = host1x_client_suspend(&hdmi->client); + if (ret < 0) + dev_err(hdmi->dev, "failed to suspend: %d\n", ret); +} + +static const struct hdmi_codec_ops tegra_hdmi_codec_ops = { + .hw_params = tegra_hdmi_hw_params, + .audio_startup = tegra_hdmi_audio_startup, + .audio_shutdown = tegra_hdmi_audio_shutdown, +}; + +static int tegra_hdmi_codec_register(struct tegra_hdmi *hdmi) +{ + struct hdmi_codec_pdata codec_data = {}; + + if (hdmi->config->has_hda) + return 0; + + codec_data.ops = &tegra_hdmi_codec_ops; + codec_data.data = hdmi; + codec_data.spdif = 1; + + hdmi->audio_pdev = platform_device_register_data(hdmi->dev, + HDMI_CODEC_DRV_NAME, + PLATFORM_DEVID_AUTO, + &codec_data, + sizeof(codec_data)); + if (IS_ERR(hdmi->audio_pdev)) + return PTR_ERR(hdmi->audio_pdev); + + hdmi->format.channels = 2; + + return 0; +} + +static void tegra_hdmi_codec_unregister(struct tegra_hdmi *hdmi) +{ + if (hdmi->audio_pdev) + platform_device_unregister(hdmi->audio_pdev); +} + +static int tegra_hdmi_init(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct drm_device *drm = dev_get_drvdata(client->host); + struct drm_connector *connector; + int err; + + hdmi->output.dev = client->dev; + + drm_simple_encoder_init(drm, &hdmi->output.encoder, + DRM_MODE_ENCODER_TMDS); + drm_encoder_helper_add(&hdmi->output.encoder, + &tegra_hdmi_encoder_helper_funcs); + + if (hdmi->output.bridge) { + err = drm_bridge_attach(&hdmi->output.encoder, hdmi->output.bridge, + NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR); + if (err) { + dev_err(client->dev, "failed to attach bridge: %d\n", + err); + return err; + } + + connector = drm_bridge_connector_init(drm, &hdmi->output.encoder); + if (IS_ERR(connector)) { + dev_err(client->dev, + "failed to initialize bridge connector: %pe\n", + connector); + return PTR_ERR(connector); + } + + drm_connector_attach_encoder(connector, &hdmi->output.encoder); + } else { + drm_connector_init_with_ddc(drm, &hdmi->output.connector, + &tegra_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + hdmi->output.ddc); + drm_connector_helper_add(&hdmi->output.connector, + &tegra_hdmi_connector_helper_funcs); + hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF; + + 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); + goto output_exit; + } + + err = regulator_enable(hdmi->pll); + if (err < 0) { + dev_err(hdmi->dev, "failed to enable PLL regulator: %d\n", err); + goto disable_hdmi; + } + + err = regulator_enable(hdmi->vdd); + if (err < 0) { + dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err); + goto disable_pll; + } + + err = tegra_hdmi_codec_register(hdmi); + if (err < 0) { + dev_err(hdmi->dev, "failed to register audio codec: %d\n", err); + goto disable_vdd; + } + + return 0; + +disable_vdd: + regulator_disable(hdmi->vdd); +disable_pll: + regulator_disable(hdmi->pll); +disable_hdmi: + regulator_disable(hdmi->hdmi); +output_exit: + tegra_output_exit(&hdmi->output); + + return err; +} + +static int tegra_hdmi_exit(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + + tegra_hdmi_codec_unregister(hdmi); + + tegra_output_exit(&hdmi->output); + + regulator_disable(hdmi->vdd); + regulator_disable(hdmi->pll); + regulator_disable(hdmi->hdmi); + + return 0; +} + +static int tegra_hdmi_runtime_suspend(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct device *dev = client->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); + pm_runtime_put_sync(dev); + + return 0; +} + +static int tegra_hdmi_runtime_resume(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct device *dev = client->dev; + int err; + + err = pm_runtime_resume_and_get(dev); + if (err < 0) { + dev_err(dev, "failed to get runtime PM: %d\n", err); + return err; + } + + err = clk_prepare_enable(hdmi->clk); + if (err < 0) { + dev_err(dev, "failed to enable clock: %d\n", err); + goto put_rpm; + } + + usleep_range(1000, 2000); + + err = reset_control_deassert(hdmi->rst); + if (err < 0) { + dev_err(dev, "failed to deassert reset: %d\n", err); + goto disable_clk; + } + + return 0; + +disable_clk: + clk_disable_unprepare(hdmi->clk); +put_rpm: + pm_runtime_put_sync(dev); + return err; +} + +static const struct host1x_client_ops hdmi_client_ops = { + .init = tegra_hdmi_init, + .exit = tegra_hdmi_exit, + .suspend = tegra_hdmi_runtime_suspend, + .resume = tegra_hdmi_runtime_resume, +}; + +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; + + 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); + tegra_hdmi_reconfigure_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; + 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; + + mutex_init(&hdmi->audio_lock); + + 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"); + err = PTR_ERR_OR_ZERO(hdmi->hdmi); + if (err) + return dev_err_probe(&pdev->dev, err, + "failed to get HDMI regulator\n"); + + hdmi->pll = devm_regulator_get(&pdev->dev, "pll"); + err = PTR_ERR_OR_ZERO(hdmi->pll); + if (err) + return dev_err_probe(&pdev->dev, err, + "failed to get PLL regulator\n"); + + hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd"); + err = PTR_ERR_OR_ZERO(hdmi->vdd); + if (err) + return dev_err_probe(&pdev->dev, err, + "failed to get VDD regulator\n"); + + hdmi->output.dev = &pdev->dev; + + err = tegra_output_probe(&hdmi->output); + if (err < 0) + return err; + + hdmi->regs = devm_platform_ioremap_resource(pdev, 0); + 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); + + err = devm_pm_runtime_enable(&pdev->dev); + if (err) + return err; + + err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); + if (err) + return err; + + 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 void tegra_hdmi_remove(struct platform_device *pdev) +{ + struct tegra_hdmi *hdmi = platform_get_drvdata(pdev); + + host1x_client_unregister(&hdmi->client); + + tegra_output_remove(&hdmi->output); +} + +struct platform_driver tegra_hdmi_driver = { + .driver = { + .name = "tegra-hdmi", + .of_match_table = tegra_hdmi_of_match, + }, + .probe = tegra_hdmi_probe, + .remove_new = tegra_hdmi_remove, +}; -- cgit v1.2.3