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