| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Thierry Reding | 7412 | 88.52% | 35 | 68.63% |
| Mikko Perttunen | 602 | 7.19% | 3 | 5.88% |
| Alban Bedel | 274 | 3.27% | 1 | 1.96% |
| Stephen Warren | 62 | 0.74% | 2 | 3.92% |
| Ville Syrjälä | 9 | 0.11% | 2 | 3.92% |
| Damien Lespiau | 5 | 0.06% | 2 | 3.92% |
| Daniel Vetter | 2 | 0.02% | 2 | 3.92% |
| Thomas Gleixner | 2 | 0.02% | 1 | 1.96% |
| Lucas Stach | 2 | 0.02% | 1 | 1.96% |
| Terje Bergstrom | 2 | 0.02% | 1 | 1.96% |
| Shashank Sharma | 1 | 0.01% | 1 | 1.96% |
| Total | 8373 | 51 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Avionic Design GmbH * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. */ #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) { /* * 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 */ } 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, };
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