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path: root/drivers/gpu/drm/tegra/hdmi.c
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-rw-r--r--drivers/gpu/drm/tegra/hdmi.c1914
1 files changed, 1914 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
new file mode 100644
index 0000000000..80c760986d
--- /dev/null
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -0,0 +1,1914 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Avionic Design GmbH
+ * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
+ */
+
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/hdmi.h>
+#include <linux/math64.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_opp.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+
+#include <soc/tegra/common.h>
+#include <sound/hdmi-codec.h>
+
+#include <drm/drm_bridge_connector.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_debugfs.h>
+#include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_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;
+
+ struct platform_device *audio_pdev;
+ struct mutex audio_lock;
+};
+
+static inline struct tegra_hdmi *
+host1x_client_to_hdmi(struct host1x_client *client)
+{
+ return container_of(client, struct tegra_hdmi, client);
+}
+
+static inline struct tegra_hdmi *to_hdmi(struct tegra_output *output)
+{
+ return container_of(output, struct tegra_hdmi, output);
+}
+
+#define HDMI_AUDIOCLK_FREQ 216000000
+#define HDMI_REKEY_DEFAULT 56
+
+enum {
+ AUTO = 0,
+ SPDIF,
+ HDA,
+};
+
+static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi,
+ unsigned int offset)
+{
+ u32 value = readl(hdmi->regs + (offset << 2));
+
+ trace_hdmi_readl(hdmi->dev, offset, value);
+
+ return value;
+}
+
+static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value,
+ unsigned int offset)
+{
+ trace_hdmi_writel(hdmi->dev, offset, value);
+ writel(value, hdmi->regs + (offset << 2));
+}
+
+struct tegra_hdmi_audio_config {
+ unsigned int n;
+ unsigned int cts;
+ unsigned int aval;
+};
+
+static const struct tmds_config tegra20_tmds_config[] = {
+ { /* slow pixel clock modes */
+ .pclk = 27000000,
+ .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
+ SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
+ SOR_PLL_TX_REG_LOAD(3),
+ .pll1 = SOR_PLL_TMDS_TERM_ENABLE,
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
+ PE_CURRENT1(PE_CURRENT_0_0_mA) |
+ PE_CURRENT2(PE_CURRENT_0_0_mA) |
+ PE_CURRENT3(PE_CURRENT_0_0_mA),
+ .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
+ },
+ { /* high pixel clock modes */
+ .pclk = UINT_MAX,
+ .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
+ SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
+ SOR_PLL_TX_REG_LOAD(3),
+ .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
+ .pe_current = PE_CURRENT0(PE_CURRENT_6_0_mA) |
+ PE_CURRENT1(PE_CURRENT_6_0_mA) |
+ PE_CURRENT2(PE_CURRENT_6_0_mA) |
+ PE_CURRENT3(PE_CURRENT_6_0_mA),
+ .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE1(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE2(DRIVE_CURRENT_7_125_mA) |
+ DRIVE_CURRENT_LANE3(DRIVE_CURRENT_7_125_mA),
+ },
+};
+
+static const struct tmds_config tegra30_tmds_config[] = {
+ { /* 480p modes */
+ .pclk = 27000000,
+ .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
+ SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(0) |
+ SOR_PLL_TX_REG_LOAD(0),
+ .pll1 = SOR_PLL_TMDS_TERM_ENABLE,
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_0_mA) |
+ PE_CURRENT1(PE_CURRENT_0_0_mA) |
+ PE_CURRENT2(PE_CURRENT_0_0_mA) |
+ PE_CURRENT3(PE_CURRENT_0_0_mA),
+ .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
+ }, { /* 720p modes */
+ .pclk = 74250000,
+ .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
+ SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(1) |
+ SOR_PLL_TX_REG_LOAD(0),
+ .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
+ .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
+ PE_CURRENT1(PE_CURRENT_5_0_mA) |
+ PE_CURRENT2(PE_CURRENT_5_0_mA) |
+ PE_CURRENT3(PE_CURRENT_5_0_mA),
+ .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
+ }, { /* 1080p modes */
+ .pclk = UINT_MAX,
+ .pll0 = SOR_PLL_BG_V17_S(3) | SOR_PLL_ICHPMP(1) |
+ SOR_PLL_RESISTORSEL | SOR_PLL_VCOCAP(3) |
+ SOR_PLL_TX_REG_LOAD(0),
+ .pll1 = SOR_PLL_TMDS_TERM_ENABLE | SOR_PLL_PE_EN,
+ .pe_current = PE_CURRENT0(PE_CURRENT_5_0_mA) |
+ PE_CURRENT1(PE_CURRENT_5_0_mA) |
+ PE_CURRENT2(PE_CURRENT_5_0_mA) |
+ PE_CURRENT3(PE_CURRENT_5_0_mA),
+ .drive_current = DRIVE_CURRENT_LANE0(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE1(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE2(DRIVE_CURRENT_5_250_mA) |
+ DRIVE_CURRENT_LANE3(DRIVE_CURRENT_5_250_mA),
+ },
+};
+
+static const struct tmds_config tegra114_tmds_config[] = {
+ { /* 480p/576p / 25.2MHz/27MHz modes */
+ .pclk = 27000000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_0_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 720p / 74.25MHz modes */
+ .pclk = 74250000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
+ SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_15_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 1080p / 148.5MHz modes */
+ .pclk = 148500000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
+ SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_10_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 225/297MHz modes */
+ .pclk = UINT_MAX,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7)
+ | SOR_PLL_TMDS_TERM_ENABLE,
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_0_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA),
+ },
+};
+
+static const struct tmds_config tegra124_tmds_config[] = {
+ { /* 480p/576p / 25.2MHz/27MHz modes */
+ .pclk = 27000000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(0) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_0_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 720p / 74.25MHz modes */
+ .pclk = 74250000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(1) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
+ SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_15_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_15_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_10_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_10_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 1080p / 148.5MHz modes */
+ .pclk = 148500000,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(3) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_PE_EN | SOR_PLL_LOADADJ(3) |
+ SOR_PLL_TMDS_TERMADJ(0),
+ .pe_current = PE_CURRENT0(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_10_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_10_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_12_400_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_12_400_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_0_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_000_mA),
+ }, { /* 225/297MHz modes */
+ .pclk = UINT_MAX,
+ .pll0 = SOR_PLL_ICHPMP(1) | SOR_PLL_BG_V17_S(3) |
+ SOR_PLL_VCOCAP(0xf) | SOR_PLL_RESISTORSEL,
+ .pll1 = SOR_PLL_LOADADJ(3) | SOR_PLL_TMDS_TERMADJ(7)
+ | SOR_PLL_TMDS_TERM_ENABLE,
+ .pe_current = PE_CURRENT0(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT1(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT2(PE_CURRENT_0_mA_T114) |
+ PE_CURRENT3(PE_CURRENT_0_mA_T114),
+ .drive_current =
+ DRIVE_CURRENT_LANE0_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE1_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE2_T114(DRIVE_CURRENT_25_200_mA_T114) |
+ DRIVE_CURRENT_LANE3_T114(DRIVE_CURRENT_19_200_mA_T114),
+ .peak_current = PEAK_CURRENT_LANE0(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE1(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE2(PEAK_CURRENT_3_000_mA) |
+ PEAK_CURRENT_LANE3(PEAK_CURRENT_0_800_mA),
+ },
+};
+
+static void tegra_hdmi_audio_lock(struct tegra_hdmi *hdmi)
+{
+ mutex_lock(&hdmi->audio_lock);
+ disable_irq(hdmi->irq);
+}
+
+static void tegra_hdmi_audio_unlock(struct tegra_hdmi *hdmi)
+{
+ enable_irq(hdmi->irq);
+ mutex_unlock(&hdmi->audio_lock);
+}
+
+static int
+tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pix_clock,
+ struct tegra_hdmi_audio_config *config)
+{
+ const unsigned int afreq = 128 * audio_freq;
+ const unsigned int min_n = afreq / 1500;
+ const unsigned int max_n = afreq / 300;
+ const unsigned int ideal_n = afreq / 1000;
+ int64_t min_err = (uint64_t)-1 >> 1;
+ unsigned int min_delta = -1;
+ int n;
+
+ memset(config, 0, sizeof(*config));
+ config->n = -1;
+
+ for (n = min_n; n <= max_n; n++) {
+ uint64_t cts_f, aval_f;
+ unsigned int delta;
+ int64_t cts, err;
+
+ /* compute aval in 48.16 fixed point */
+ aval_f = ((int64_t)24000000 << 16) * n;
+ do_div(aval_f, afreq);
+ /* It should round without any rest */
+ if (aval_f & 0xFFFF)
+ continue;
+
+ /* Compute cts in 48.16 fixed point */
+ cts_f = ((int64_t)pix_clock << 16) * n;
+ do_div(cts_f, afreq);
+ /* Round it to the nearest integer */
+ cts = (cts_f & ~0xFFFF) + ((cts_f & BIT(15)) << 1);
+
+ delta = abs(n - ideal_n);
+
+ /* Compute the absolute error */
+ err = abs((int64_t)cts_f - cts);
+ if (err < min_err || (err == min_err && delta < min_delta)) {
+ config->n = n;
+ config->cts = cts >> 16;
+ config->aval = aval_f >> 16;
+ min_delta = delta;
+ min_err = err;
+ }
+ }
+
+ return config->n != -1 ? 0 : -EINVAL;
+}
+
+static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi)
+{
+ const unsigned int freqs[] = {
+ 32000, 44100, 48000, 88200, 96000, 176400, 192000
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(freqs); i++) {
+ unsigned int f = freqs[i];
+ unsigned int eight_half;
+ unsigned int delta;
+ u32 value;
+
+ if (f > 96000)
+ delta = 2;
+ else if (f > 48000)
+ delta = 6;
+ else
+ delta = 9;
+
+ eight_half = (8 * HDMI_AUDIOCLK_FREQ) / (f * 128);
+ value = AUDIO_FS_LOW(eight_half - delta) |
+ AUDIO_FS_HIGH(eight_half + delta);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_FS(i));
+ }
+}
+
+static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value)
+{
+ static const struct {
+ unsigned int sample_rate;
+ unsigned int offset;
+ } regs[] = {
+ { 32000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320 },
+ { 44100, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441 },
+ { 48000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480 },
+ { 88200, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882 },
+ { 96000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960 },
+ { 176400, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764 },
+ { 192000, HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920 },
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(regs); i++) {
+ if (regs[i].sample_rate == hdmi->format.sample_rate) {
+ tegra_hdmi_writel(hdmi, value, regs[i].offset);
+ break;
+ }
+ }
+}
+
+static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
+{
+ struct tegra_hdmi_audio_config config;
+ u32 source, value;
+ int err;
+
+ switch (hdmi->audio_source) {
+ case HDA:
+ if (hdmi->config->has_hda)
+ source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_HDAL;
+ else
+ return -EINVAL;
+
+ break;
+
+ case SPDIF:
+ if (hdmi->config->has_hda)
+ source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
+ else
+ source = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
+ break;
+
+ default:
+ if (hdmi->config->has_hda)
+ source = SOR_AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
+ else
+ source = AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
+ break;
+ }
+
+ /*
+ * Tegra30 and later use a slightly modified version of the register
+ * layout to accomodate for changes related to supporting HDA as the
+ * audio input source for HDMI. The source select field has moved to
+ * the SOR_AUDIO_CNTRL0 register, but the error tolerance and frames
+ * per block fields remain in the AUDIO_CNTRL0 register.
+ */
+ if (hdmi->config->has_hda) {
+ /*
+ * Inject null samples into the audio FIFO for every frame in
+ * which the codec did not receive any samples. This applies
+ * to stereo LPCM only.
+ *
+ * XXX: This seems to be a remnant of MCP days when this was
+ * used to work around issues with monitors not being able to
+ * play back system startup sounds early. It is possibly not
+ * needed on Linux at all.
+ */
+ if (hdmi->format.channels == 2)
+ value = SOR_AUDIO_CNTRL0_INJECT_NULLSMPL;
+ else
+ value = 0;
+
+ value |= source;
+
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
+ }
+
+ /*
+ * On Tegra20, HDA is not a supported audio source and the source
+ * select field is part of the AUDIO_CNTRL0 register.
+ */
+ value = AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0) |
+ AUDIO_CNTRL0_ERROR_TOLERANCE(6);
+
+ if (!hdmi->config->has_hda)
+ value |= source;
+
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
+
+ /*
+ * Advertise support for High Bit-Rate on Tegra114 and later.
+ */
+ if (hdmi->config->has_hbr) {
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_SPARE0);
+ value |= SOR_AUDIO_SPARE0_HBR_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_SPARE0);
+ }
+
+ err = tegra_hdmi_get_audio_config(hdmi->format.sample_rate,
+ hdmi->pixel_clock, &config);
+ if (err < 0) {
+ dev_err(hdmi->dev,
+ "cannot set audio to %u Hz at %u Hz pixel clock\n",
+ hdmi->format.sample_rate, hdmi->pixel_clock);
+ return err;
+ }
+
+ dev_dbg(hdmi->dev, "audio: pixclk=%u, n=%u, cts=%u, aval=%u\n",
+ hdmi->pixel_clock, config.n, config.cts, config.aval);
+
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_HDMI_ACR_CTRL);
+
+ value = AUDIO_N_RESETF | AUDIO_N_GENERATE_ALTERNATE |
+ AUDIO_N_VALUE(config.n - 1);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
+
+ tegra_hdmi_writel(hdmi, ACR_SUBPACK_N(config.n) | ACR_ENABLE,
+ HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH);
+
+ tegra_hdmi_writel(hdmi, ACR_SUBPACK_CTS(config.cts),
+ HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW);
+
+ value = SPARE_HW_CTS | SPARE_FORCE_SW_CTS | SPARE_CTS_RESET_VAL(1);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_SPARE);
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_AUDIO_N);
+ value &= ~AUDIO_N_RESETF;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
+
+ if (hdmi->config->has_hda)
+ tegra_hdmi_write_aval(hdmi, config.aval);
+
+ tegra_hdmi_setup_audio_fs_tables(hdmi);
+
+ return 0;
+}
+
+static void tegra_hdmi_disable_audio(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ value &= ~GENERIC_CTRL_AUDIO;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+}
+
+static void tegra_hdmi_enable_audio(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ value |= GENERIC_CTRL_AUDIO;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+}
+
+static void tegra_hdmi_write_eld(struct tegra_hdmi *hdmi)
+{
+ size_t length = drm_eld_size(hdmi->output.connector.eld), i;
+ u32 value;
+
+ for (i = 0; i < length; i++)
+ tegra_hdmi_writel(hdmi, i << 8 | hdmi->output.connector.eld[i],
+ HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
+
+ /*
+ * The HDA codec will always report an ELD buffer size of 96 bytes and
+ * the HDA codec driver will check that each byte read from the buffer
+ * is valid. Therefore every byte must be written, even if no 96 bytes
+ * were parsed from EDID.
+ */
+ for (i = length; i < HDMI_ELD_BUFFER_SIZE; i++)
+ tegra_hdmi_writel(hdmi, i << 8 | 0,
+ HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
+
+ value = SOR_AUDIO_HDA_PRESENSE_VALID | SOR_AUDIO_HDA_PRESENSE_PRESENT;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
+}
+
+static inline u32 tegra_hdmi_subpack(const u8 *ptr, size_t size)
+{
+ u32 value = 0;
+ size_t i;
+
+ for (i = size; i > 0; i--)
+ value = (value << 8) | ptr[i - 1];
+
+ return value;
+}
+
+static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi, const void *data,
+ size_t size)
+{
+ const u8 *ptr = data;
+ unsigned long offset;
+ size_t i, j;
+ u32 value;
+
+ switch (ptr[0]) {
+ case HDMI_INFOFRAME_TYPE_AVI:
+ offset = HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER;
+ break;
+
+ case HDMI_INFOFRAME_TYPE_AUDIO:
+ offset = HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER;
+ break;
+
+ case HDMI_INFOFRAME_TYPE_VENDOR:
+ offset = HDMI_NV_PDISP_HDMI_GENERIC_HEADER;
+ break;
+
+ default:
+ dev_err(hdmi->dev, "unsupported infoframe type: %02x\n",
+ ptr[0]);
+ return;
+ }
+
+ value = INFOFRAME_HEADER_TYPE(ptr[0]) |
+ INFOFRAME_HEADER_VERSION(ptr[1]) |
+ INFOFRAME_HEADER_LEN(ptr[2]);
+ tegra_hdmi_writel(hdmi, value, offset);
+ offset++;
+
+ /*
+ * Each subpack contains 7 bytes, divided into:
+ * - subpack_low: bytes 0 - 3
+ * - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00)
+ */
+ for (i = 3, j = 0; i < size; i += 7, j += 8) {
+ size_t rem = size - i, num = min_t(size_t, rem, 4);
+
+ value = tegra_hdmi_subpack(&ptr[i], num);
+ tegra_hdmi_writel(hdmi, value, offset++);
+
+ num = min_t(size_t, rem - num, 3);
+
+ value = tegra_hdmi_subpack(&ptr[i + 4], num);
+ tegra_hdmi_writel(hdmi, value, offset++);
+ }
+}
+
+static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
+ struct drm_display_mode *mode)
+{
+ struct hdmi_avi_infoframe frame;
+ u8 buffer[17];
+ ssize_t err;
+
+ err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
+ &hdmi->output.connector, mode);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err);
+ return;
+ }
+
+ err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to pack AVI infoframe: %zd\n", err);
+ return;
+ }
+
+ tegra_hdmi_write_infopack(hdmi, buffer, err);
+}
+
+static void tegra_hdmi_disable_avi_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+ value &= ~INFOFRAME_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+}
+
+static void tegra_hdmi_enable_avi_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+ value |= INFOFRAME_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+}
+
+static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
+{
+ struct hdmi_audio_infoframe frame;
+ u8 buffer[14];
+ ssize_t err;
+
+ err = hdmi_audio_infoframe_init(&frame);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to setup audio infoframe: %zd\n",
+ err);
+ return;
+ }
+
+ frame.channels = hdmi->format.channels;
+
+ err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to pack audio infoframe: %zd\n",
+ err);
+ return;
+ }
+
+ /*
+ * The audio infoframe has only one set of subpack registers, so the
+ * infoframe needs to be truncated. One set of subpack registers can
+ * contain 7 bytes. Including the 3 byte header only the first 10
+ * bytes can be programmed.
+ */
+ tegra_hdmi_write_infopack(hdmi, buffer, min_t(size_t, 10, err));
+}
+
+static void tegra_hdmi_disable_audio_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+ value &= ~INFOFRAME_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+}
+
+static void tegra_hdmi_enable_audio_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+ value |= INFOFRAME_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+}
+
+static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
+{
+ struct hdmi_vendor_infoframe frame;
+ u8 buffer[10];
+ ssize_t err;
+
+ hdmi_vendor_infoframe_init(&frame);
+ frame.s3d_struct = HDMI_3D_STRUCTURE_FRAME_PACKING;
+
+ err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n",
+ err);
+ return;
+ }
+
+ tegra_hdmi_write_infopack(hdmi, buffer, err);
+}
+
+static void tegra_hdmi_disable_stereo_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ value &= ~GENERIC_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+}
+
+static void tegra_hdmi_enable_stereo_infoframe(struct tegra_hdmi *hdmi)
+{
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ value |= GENERIC_CTRL_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+}
+
+static void tegra_hdmi_setup_tmds(struct tegra_hdmi *hdmi,
+ const struct tmds_config *tmds)
+{
+ u32 value;
+
+ tegra_hdmi_writel(hdmi, tmds->pll0, HDMI_NV_PDISP_SOR_PLL0);
+ tegra_hdmi_writel(hdmi, tmds->pll1, HDMI_NV_PDISP_SOR_PLL1);
+ tegra_hdmi_writel(hdmi, tmds->pe_current, HDMI_NV_PDISP_PE_CURRENT);
+
+ tegra_hdmi_writel(hdmi, tmds->drive_current,
+ HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
+
+ value = tegra_hdmi_readl(hdmi, hdmi->config->fuse_override_offset);
+ value |= hdmi->config->fuse_override_value;
+ tegra_hdmi_writel(hdmi, value, hdmi->config->fuse_override_offset);
+
+ if (hdmi->config->has_sor_io_peak_current)
+ tegra_hdmi_writel(hdmi, tmds->peak_current,
+ HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT);
+}
+
+static int tegra_hdmi_reconfigure_audio(struct tegra_hdmi *hdmi)
+{
+ int err;
+
+ err = tegra_hdmi_setup_audio(hdmi);
+ if (err < 0) {
+ tegra_hdmi_disable_audio_infoframe(hdmi);
+ tegra_hdmi_disable_audio(hdmi);
+ } else {
+ tegra_hdmi_setup_audio_infoframe(hdmi);
+ tegra_hdmi_enable_audio_infoframe(hdmi);
+ tegra_hdmi_enable_audio(hdmi);
+ }
+
+ return err;
+}
+
+static bool tegra_output_is_hdmi(struct tegra_output *output)
+{
+ return output->connector.display_info.is_hdmi;
+}
+
+static enum drm_connector_status
+tegra_hdmi_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct tegra_output *output = connector_to_output(connector);
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ enum drm_connector_status status;
+
+ status = tegra_output_connector_detect(connector, force);
+ if (status == connector_status_connected)
+ return status;
+
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
+ return status;
+}
+
+#define DEBUGFS_REG32(_name) { .name = #_name, .offset = _name }
+
+static const struct debugfs_reg32 tegra_hdmi_regs[] = {
+ DEBUGFS_REG32(HDMI_CTXSW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_STATE2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AN_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CN_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_AKSV_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_BKSV_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CKSV_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_DKSV_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CMODE),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_MPRIME_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_RI),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_MSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_RG_HDCP_CS_LSB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU_RDATA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_EMU2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_STATUS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_STATUS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_STATUS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_HEADER),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_HIGH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_KEEPOUT),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_VSYNC_WINDOW),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_STATUS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_GCP_SUBPACK),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_EMU1_RDATA),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPARE),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDMI_HDCPRIF_ROM_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CAP),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PWR),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TEST),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_PLL2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CSTM),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LVDS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCA),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CRCB),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_BLANK),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_CTL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(0)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(1)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(2)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(3)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(4)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(5)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(6)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(7)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(8)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(9)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(10)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(11)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(12)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(13)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(14)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_SEQ_INST(15)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_VCRCA1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_CCRCA1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_EDATAA1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_COUNTA1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_DEBUGA1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_TRIG),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_MSCHECK),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_DEBUG2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(0)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(1)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(2)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(3)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(4)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(5)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_FS(6)),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_PULSE_WIDTH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_THRESHOLD),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_CNTRL0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_AUDIO_N),
+ DEBUGFS_REG32(HDMI_NV_PDISP_HDCPRIF_ROM_TIMING),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_REFCLK),
+ DEBUGFS_REG32(HDMI_NV_PDISP_CRC_CONTROL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_INPUT_CONTROL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SCRATCH),
+ DEBUGFS_REG32(HDMI_NV_PDISP_PE_CURRENT),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_CTRL),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_DEBUG2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_2),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_3),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_HDCP_KEY_TRIG),
+ DEBUGFS_REG32(HDMI_NV_PDISP_KEY_SKEY_INDEX),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_CNTRL0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_SPARE0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH1),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE),
+ DEBUGFS_REG32(HDMI_NV_PDISP_INT_STATUS),
+ DEBUGFS_REG32(HDMI_NV_PDISP_INT_MASK),
+ DEBUGFS_REG32(HDMI_NV_PDISP_INT_ENABLE),
+ DEBUGFS_REG32(HDMI_NV_PDISP_SOR_IO_PEAK_CURRENT),
+};
+
+static int tegra_hdmi_show_regs(struct seq_file *s, void *data)
+{
+ struct drm_info_node *node = s->private;
+ struct tegra_hdmi *hdmi = node->info_ent->data;
+ struct drm_crtc *crtc = hdmi->output.encoder.crtc;
+ struct drm_device *drm = node->minor->dev;
+ unsigned int i;
+ int err = 0;
+
+ drm_modeset_lock_all(drm);
+
+ if (!crtc || !crtc->state->active) {
+ err = -EBUSY;
+ goto unlock;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(tegra_hdmi_regs); i++) {
+ unsigned int offset = tegra_hdmi_regs[i].offset;
+
+ seq_printf(s, "%-56s %#05x %08x\n", tegra_hdmi_regs[i].name,
+ offset, tegra_hdmi_readl(hdmi, offset));
+ }
+
+unlock:
+ drm_modeset_unlock_all(drm);
+ return err;
+}
+
+static struct drm_info_list debugfs_files[] = {
+ { "regs", tegra_hdmi_show_regs, 0, NULL },
+};
+
+static int tegra_hdmi_late_register(struct drm_connector *connector)
+{
+ struct tegra_output *output = connector_to_output(connector);
+ unsigned int i, count = ARRAY_SIZE(debugfs_files);
+ struct drm_minor *minor = connector->dev->primary;
+ struct dentry *root = connector->debugfs_entry;
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+
+ hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),
+ GFP_KERNEL);
+ if (!hdmi->debugfs_files)
+ return -ENOMEM;
+
+ for (i = 0; i < count; i++)
+ hdmi->debugfs_files[i].data = hdmi;
+
+ drm_debugfs_create_files(hdmi->debugfs_files, count, root, minor);
+
+ return 0;
+}
+
+static void tegra_hdmi_early_unregister(struct drm_connector *connector)
+{
+ struct tegra_output *output = connector_to_output(connector);
+ struct drm_minor *minor = connector->dev->primary;
+ unsigned int count = ARRAY_SIZE(debugfs_files);
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+
+ drm_debugfs_remove_files(hdmi->debugfs_files, count, minor);
+ kfree(hdmi->debugfs_files);
+ hdmi->debugfs_files = NULL;
+}
+
+static const struct drm_connector_funcs tegra_hdmi_connector_funcs = {
+ .reset = drm_atomic_helper_connector_reset,
+ .detect = tegra_hdmi_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = tegra_output_connector_destroy,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+ .late_register = tegra_hdmi_late_register,
+ .early_unregister = tegra_hdmi_early_unregister,
+};
+
+static enum drm_mode_status
+tegra_hdmi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ struct tegra_output *output = connector_to_output(connector);
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ unsigned long pclk = mode->clock * 1000;
+ enum drm_mode_status status = MODE_OK;
+ struct clk *parent;
+ long err;
+
+ parent = clk_get_parent(hdmi->clk_parent);
+
+ err = clk_round_rate(parent, pclk * 4);
+ if (err <= 0)
+ status = MODE_NOCLOCK;
+
+ return status;
+}
+
+static const struct drm_connector_helper_funcs
+tegra_hdmi_connector_helper_funcs = {
+ .get_modes = tegra_output_connector_get_modes,
+ .mode_valid = tegra_hdmi_connector_mode_valid,
+};
+
+static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder)
+{
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ u32 value;
+ int err;
+
+ tegra_hdmi_audio_lock(hdmi);
+
+ /*
+ * The following accesses registers of the display controller, so make
+ * sure it's only executed when the output is attached to one.
+ */
+ if (dc) {
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value &= ~HDMI_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
+
+ tegra_dc_commit(dc);
+ }
+
+ if (!hdmi->dvi) {
+ if (hdmi->stereo)
+ tegra_hdmi_disable_stereo_infoframe(hdmi);
+
+ tegra_hdmi_disable_audio_infoframe(hdmi);
+ tegra_hdmi_disable_avi_infoframe(hdmi);
+ tegra_hdmi_disable_audio(hdmi);
+ }
+
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_ENABLE);
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_MASK);
+
+ hdmi->pixel_clock = 0;
+
+ tegra_hdmi_audio_unlock(hdmi);
+
+ err = host1x_client_suspend(&hdmi->client);
+ if (err < 0)
+ dev_err(hdmi->dev, "failed to suspend: %d\n", err);
+}
+
+static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder)
+{
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ unsigned int h_sync_width, h_front_porch, h_back_porch, i, rekey;
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ unsigned int pulse_start, div82;
+ int retries = 1000;
+ u32 value;
+ int err;
+
+ err = host1x_client_resume(&hdmi->client);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to resume: %d\n", err);
+ return;
+ }
+
+ tegra_hdmi_audio_lock(hdmi);
+
+ /*
+ * Enable and unmask the HDA codec SCRATCH0 register interrupt. This
+ * is used for interoperability between the HDA codec driver and the
+ * HDMI driver.
+ */
+ tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_ENABLE);
+ tegra_hdmi_writel(hdmi, INT_CODEC_SCRATCH0, HDMI_NV_PDISP_INT_MASK);
+
+ hdmi->pixel_clock = mode->clock * 1000;
+ h_sync_width = mode->hsync_end - mode->hsync_start;
+ h_back_porch = mode->htotal - mode->hsync_end;
+ h_front_porch = mode->hsync_start - mode->hdisplay;
+
+ err = dev_pm_opp_set_rate(hdmi->dev, hdmi->pixel_clock);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n",
+ err);
+ }
+
+ DRM_DEBUG_KMS("HDMI clock rate: %lu Hz\n", clk_get_rate(hdmi->clk));
+
+ /* power up sequence */
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0);
+ value &= ~SOR_PLL_PDBG;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0);
+
+ usleep_range(10, 20);
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PLL0);
+ value &= ~SOR_PLL_PWR;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_PLL0);
+
+ tegra_dc_writel(dc, VSYNC_H_POSITION(1),
+ DC_DISP_DISP_TIMING_OPTIONS);
+ tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE_888,
+ DC_DISP_DISP_COLOR_CONTROL);
+
+ /* video_preamble uses h_pulse2 */
+ pulse_start = 1 + h_sync_width + h_back_porch - 10;
+
+ tegra_dc_writel(dc, H_PULSE2_ENABLE, DC_DISP_DISP_SIGNAL_OPTIONS0);
+
+ value = PULSE_MODE_NORMAL | PULSE_POLARITY_HIGH | PULSE_QUAL_VACTIVE |
+ PULSE_LAST_END_A;
+ tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_CONTROL);
+
+ value = PULSE_START(pulse_start) | PULSE_END(pulse_start + 8);
+ tegra_dc_writel(dc, value, DC_DISP_H_PULSE2_POSITION_A);
+
+ value = VSYNC_WINDOW_END(0x210) | VSYNC_WINDOW_START(0x200) |
+ VSYNC_WINDOW_ENABLE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_VSYNC_WINDOW);
+
+ if (dc->pipe)
+ value = HDMI_SRC_DISPLAYB;
+ else
+ value = HDMI_SRC_DISPLAYA;
+
+ if ((mode->hdisplay == 720) && ((mode->vdisplay == 480) ||
+ (mode->vdisplay == 576)))
+ tegra_hdmi_writel(hdmi,
+ value | ARM_VIDEO_RANGE_FULL,
+ HDMI_NV_PDISP_INPUT_CONTROL);
+ else
+ tegra_hdmi_writel(hdmi,
+ value | ARM_VIDEO_RANGE_LIMITED,
+ HDMI_NV_PDISP_INPUT_CONTROL);
+
+ div82 = clk_get_rate(hdmi->clk) / 1000000 * 4;
+ value = SOR_REFCLK_DIV_INT(div82 >> 2) | SOR_REFCLK_DIV_FRAC(div82);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_REFCLK);
+
+ hdmi->dvi = !tegra_output_is_hdmi(output);
+ if (!hdmi->dvi) {
+ /*
+ * Make sure that the audio format has been configured before
+ * enabling audio, otherwise we may try to divide by zero.
+ */
+ if (hdmi->format.sample_rate > 0) {
+ err = tegra_hdmi_setup_audio(hdmi);
+ if (err < 0)
+ hdmi->dvi = true;
+ }
+ }
+
+ if (hdmi->config->has_hda)
+ tegra_hdmi_write_eld(hdmi);
+
+ rekey = HDMI_REKEY_DEFAULT;
+ value = HDMI_CTRL_REKEY(rekey);
+ value |= HDMI_CTRL_MAX_AC_PACKET((h_sync_width + h_back_porch +
+ h_front_porch - rekey - 18) / 32);
+
+ if (!hdmi->dvi)
+ value |= HDMI_CTRL_ENABLE;
+
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_HDMI_CTRL);
+
+ if (!hdmi->dvi) {
+ tegra_hdmi_setup_avi_infoframe(hdmi, mode);
+ tegra_hdmi_setup_audio_infoframe(hdmi);
+
+ if (hdmi->stereo)
+ tegra_hdmi_setup_stereo_infoframe(hdmi);
+ }
+
+ /* TMDS CONFIG */
+ for (i = 0; i < hdmi->config->num_tmds; i++) {
+ if (hdmi->pixel_clock <= hdmi->config->tmds[i].pclk) {
+ tegra_hdmi_setup_tmds(hdmi, &hdmi->config->tmds[i]);
+ break;
+ }
+ }
+
+ tegra_hdmi_writel(hdmi,
+ SOR_SEQ_PU_PC(0) |
+ SOR_SEQ_PU_PC_ALT(0) |
+ SOR_SEQ_PD_PC(8) |
+ SOR_SEQ_PD_PC_ALT(8),
+ HDMI_NV_PDISP_SOR_SEQ_CTL);
+
+ value = SOR_SEQ_INST_WAIT_TIME(1) |
+ SOR_SEQ_INST_WAIT_UNITS_VSYNC |
+ SOR_SEQ_INST_HALT |
+ SOR_SEQ_INST_PIN_A_LOW |
+ SOR_SEQ_INST_PIN_B_LOW |
+ SOR_SEQ_INST_DRIVE_PWM_OUT_LO;
+
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0));
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8));
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_CSTM);
+ value &= ~SOR_CSTM_ROTCLK(~0);
+ value |= SOR_CSTM_ROTCLK(2);
+ value |= SOR_CSTM_PLLDIV;
+ value &= ~SOR_CSTM_LVDS_ENABLE;
+ value &= ~SOR_CSTM_MODE_MASK;
+ value |= SOR_CSTM_MODE_TMDS;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM);
+
+ /* start SOR */
+ tegra_hdmi_writel(hdmi,
+ SOR_PWR_NORMAL_STATE_PU |
+ SOR_PWR_NORMAL_START_NORMAL |
+ SOR_PWR_SAFE_STATE_PD |
+ SOR_PWR_SETTING_NEW_TRIGGER,
+ HDMI_NV_PDISP_SOR_PWR);
+ tegra_hdmi_writel(hdmi,
+ SOR_PWR_NORMAL_STATE_PU |
+ SOR_PWR_NORMAL_START_NORMAL |
+ SOR_PWR_SAFE_STATE_PD |
+ SOR_PWR_SETTING_NEW_DONE,
+ HDMI_NV_PDISP_SOR_PWR);
+
+ do {
+ BUG_ON(--retries < 0);
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_PWR);
+ } while (value & SOR_PWR_SETTING_NEW_PENDING);
+
+ value = SOR_STATE_ASY_CRCMODE_COMPLETE |
+ SOR_STATE_ASY_OWNER_HEAD0 |
+ SOR_STATE_ASY_SUBOWNER_BOTH |
+ SOR_STATE_ASY_PROTOCOL_SINGLE_TMDS_A |
+ SOR_STATE_ASY_DEPOL_POS;
+
+ /* setup sync polarities */
+ if (mode->flags & DRM_MODE_FLAG_PHSYNC)
+ value |= SOR_STATE_ASY_HSYNCPOL_POS;
+
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ value |= SOR_STATE_ASY_HSYNCPOL_NEG;
+
+ if (mode->flags & DRM_MODE_FLAG_PVSYNC)
+ value |= SOR_STATE_ASY_VSYNCPOL_POS;
+
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ value |= SOR_STATE_ASY_VSYNCPOL_NEG;
+
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE2);
+
+ value = SOR_STATE_ASY_HEAD_OPMODE_AWAKE | SOR_STATE_ASY_ORMODE_NORMAL;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_STATE1);
+
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
+ tegra_hdmi_writel(hdmi, SOR_STATE_UPDATE, HDMI_NV_PDISP_SOR_STATE0);
+ tegra_hdmi_writel(hdmi, value | SOR_STATE_ATTACHED,
+ HDMI_NV_PDISP_SOR_STATE1);
+ tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_SOR_STATE0);
+
+ value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
+ value |= HDMI_ENABLE;
+ tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
+
+ tegra_dc_commit(dc);
+
+ if (!hdmi->dvi) {
+ tegra_hdmi_enable_avi_infoframe(hdmi);
+ tegra_hdmi_enable_audio_infoframe(hdmi);
+ tegra_hdmi_enable_audio(hdmi);
+
+ if (hdmi->stereo)
+ tegra_hdmi_enable_stereo_infoframe(hdmi);
+ }
+
+ /* TODO: add HDCP support */
+
+ tegra_hdmi_audio_unlock(hdmi);
+}
+
+static int
+tegra_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct tegra_output *output = encoder_to_output(encoder);
+ struct tegra_dc *dc = to_tegra_dc(conn_state->crtc);
+ unsigned long pclk = crtc_state->mode.clock * 1000;
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ int err;
+
+ err = tegra_dc_state_setup_clock(dc, crtc_state, hdmi->clk_parent,
+ pclk, 0);
+ if (err < 0) {
+ dev_err(output->dev, "failed to setup CRTC state: %d\n", err);
+ return err;
+ }
+
+ return err;
+}
+
+static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = {
+ .disable = tegra_hdmi_encoder_disable,
+ .enable = tegra_hdmi_encoder_enable,
+ .atomic_check = tegra_hdmi_encoder_atomic_check,
+};
+
+static int tegra_hdmi_hw_params(struct device *dev, void *data,
+ struct hdmi_codec_daifmt *fmt,
+ struct hdmi_codec_params *hparms)
+{
+ struct tegra_hdmi *hdmi = data;
+ int ret = 0;
+
+ tegra_hdmi_audio_lock(hdmi);
+
+ hdmi->format.sample_rate = hparms->sample_rate;
+ hdmi->format.channels = hparms->channels;
+
+ if (hdmi->pixel_clock && !hdmi->dvi)
+ ret = tegra_hdmi_reconfigure_audio(hdmi);
+
+ tegra_hdmi_audio_unlock(hdmi);
+
+ return ret;
+}
+
+static int tegra_hdmi_audio_startup(struct device *dev, void *data)
+{
+ struct tegra_hdmi *hdmi = data;
+ int ret;
+
+ ret = host1x_client_resume(&hdmi->client);
+ if (ret < 0)
+ dev_err(hdmi->dev, "failed to resume: %d\n", ret);
+
+ return ret;
+}
+
+static void tegra_hdmi_audio_shutdown(struct device *dev, void *data)
+{
+ struct tegra_hdmi *hdmi = data;
+ int ret;
+
+ tegra_hdmi_audio_lock(hdmi);
+
+ hdmi->format.sample_rate = 0;
+ hdmi->format.channels = 0;
+
+ tegra_hdmi_audio_unlock(hdmi);
+
+ ret = host1x_client_suspend(&hdmi->client);
+ if (ret < 0)
+ dev_err(hdmi->dev, "failed to suspend: %d\n", ret);
+}
+
+static const struct hdmi_codec_ops tegra_hdmi_codec_ops = {
+ .hw_params = tegra_hdmi_hw_params,
+ .audio_startup = tegra_hdmi_audio_startup,
+ .audio_shutdown = tegra_hdmi_audio_shutdown,
+};
+
+static int tegra_hdmi_codec_register(struct tegra_hdmi *hdmi)
+{
+ struct hdmi_codec_pdata codec_data = {};
+
+ if (hdmi->config->has_hda)
+ return 0;
+
+ codec_data.ops = &tegra_hdmi_codec_ops;
+ codec_data.data = hdmi;
+ codec_data.spdif = 1;
+
+ hdmi->audio_pdev = platform_device_register_data(hdmi->dev,
+ HDMI_CODEC_DRV_NAME,
+ PLATFORM_DEVID_AUTO,
+ &codec_data,
+ sizeof(codec_data));
+ if (IS_ERR(hdmi->audio_pdev))
+ return PTR_ERR(hdmi->audio_pdev);
+
+ hdmi->format.channels = 2;
+
+ return 0;
+}
+
+static void tegra_hdmi_codec_unregister(struct tegra_hdmi *hdmi)
+{
+ if (hdmi->audio_pdev)
+ platform_device_unregister(hdmi->audio_pdev);
+}
+
+static int tegra_hdmi_init(struct host1x_client *client)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ struct drm_device *drm = dev_get_drvdata(client->host);
+ struct drm_connector *connector;
+ int err;
+
+ hdmi->output.dev = client->dev;
+
+ drm_simple_encoder_init(drm, &hdmi->output.encoder,
+ DRM_MODE_ENCODER_TMDS);
+ drm_encoder_helper_add(&hdmi->output.encoder,
+ &tegra_hdmi_encoder_helper_funcs);
+
+ if (hdmi->output.bridge) {
+ err = drm_bridge_attach(&hdmi->output.encoder, hdmi->output.bridge,
+ NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+ if (err) {
+ dev_err(client->dev, "failed to attach bridge: %d\n",
+ err);
+ return err;
+ }
+
+ connector = drm_bridge_connector_init(drm, &hdmi->output.encoder);
+ if (IS_ERR(connector)) {
+ dev_err(client->dev,
+ "failed to initialize bridge connector: %pe\n",
+ connector);
+ return PTR_ERR(connector);
+ }
+
+ drm_connector_attach_encoder(connector, &hdmi->output.encoder);
+ } else {
+ drm_connector_init_with_ddc(drm, &hdmi->output.connector,
+ &tegra_hdmi_connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA,
+ hdmi->output.ddc);
+ drm_connector_helper_add(&hdmi->output.connector,
+ &tegra_hdmi_connector_helper_funcs);
+ hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF;
+
+ drm_connector_attach_encoder(&hdmi->output.connector,
+ &hdmi->output.encoder);
+ drm_connector_register(&hdmi->output.connector);
+ }
+
+ err = tegra_output_init(drm, &hdmi->output);
+ if (err < 0) {
+ dev_err(client->dev, "failed to initialize output: %d\n", err);
+ return err;
+ }
+
+ hdmi->output.encoder.possible_crtcs = 0x3;
+
+ err = regulator_enable(hdmi->hdmi);
+ if (err < 0) {
+ dev_err(client->dev, "failed to enable HDMI regulator: %d\n",
+ err);
+ goto output_exit;
+ }
+
+ err = regulator_enable(hdmi->pll);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to enable PLL regulator: %d\n", err);
+ goto disable_hdmi;
+ }
+
+ err = regulator_enable(hdmi->vdd);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to enable VDD regulator: %d\n", err);
+ goto disable_pll;
+ }
+
+ err = tegra_hdmi_codec_register(hdmi);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to register audio codec: %d\n", err);
+ goto disable_vdd;
+ }
+
+ return 0;
+
+disable_vdd:
+ regulator_disable(hdmi->vdd);
+disable_pll:
+ regulator_disable(hdmi->pll);
+disable_hdmi:
+ regulator_disable(hdmi->hdmi);
+output_exit:
+ tegra_output_exit(&hdmi->output);
+
+ return err;
+}
+
+static int tegra_hdmi_exit(struct host1x_client *client)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+
+ tegra_hdmi_codec_unregister(hdmi);
+
+ tegra_output_exit(&hdmi->output);
+
+ regulator_disable(hdmi->vdd);
+ regulator_disable(hdmi->pll);
+ regulator_disable(hdmi->hdmi);
+
+ return 0;
+}
+
+static int tegra_hdmi_runtime_suspend(struct host1x_client *client)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ struct device *dev = client->dev;
+ int err;
+
+ err = reset_control_assert(hdmi->rst);
+ if (err < 0) {
+ dev_err(dev, "failed to assert reset: %d\n", err);
+ return err;
+ }
+
+ usleep_range(1000, 2000);
+
+ clk_disable_unprepare(hdmi->clk);
+ pm_runtime_put_sync(dev);
+
+ return 0;
+}
+
+static int tegra_hdmi_runtime_resume(struct host1x_client *client)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ struct device *dev = client->dev;
+ int err;
+
+ err = pm_runtime_resume_and_get(dev);
+ if (err < 0) {
+ dev_err(dev, "failed to get runtime PM: %d\n", err);
+ return err;
+ }
+
+ err = clk_prepare_enable(hdmi->clk);
+ if (err < 0) {
+ dev_err(dev, "failed to enable clock: %d\n", err);
+ goto put_rpm;
+ }
+
+ usleep_range(1000, 2000);
+
+ err = reset_control_deassert(hdmi->rst);
+ if (err < 0) {
+ dev_err(dev, "failed to deassert reset: %d\n", err);
+ goto disable_clk;
+ }
+
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(hdmi->clk);
+put_rpm:
+ pm_runtime_put_sync(dev);
+ return err;
+}
+
+static const struct host1x_client_ops hdmi_client_ops = {
+ .init = tegra_hdmi_init,
+ .exit = tegra_hdmi_exit,
+ .suspend = tegra_hdmi_runtime_suspend,
+ .resume = tegra_hdmi_runtime_resume,
+};
+
+static const struct tegra_hdmi_config tegra20_hdmi_config = {
+ .tmds = tegra20_tmds_config,
+ .num_tmds = ARRAY_SIZE(tegra20_tmds_config),
+ .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT,
+ .fuse_override_value = 1 << 31,
+ .has_sor_io_peak_current = false,
+ .has_hda = false,
+ .has_hbr = false,
+};
+
+static const struct tegra_hdmi_config tegra30_hdmi_config = {
+ .tmds = tegra30_tmds_config,
+ .num_tmds = ARRAY_SIZE(tegra30_tmds_config),
+ .fuse_override_offset = HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT,
+ .fuse_override_value = 1 << 31,
+ .has_sor_io_peak_current = false,
+ .has_hda = true,
+ .has_hbr = false,
+};
+
+static const struct tegra_hdmi_config tegra114_hdmi_config = {
+ .tmds = tegra114_tmds_config,
+ .num_tmds = ARRAY_SIZE(tegra114_tmds_config),
+ .fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0,
+ .fuse_override_value = 1 << 31,
+ .has_sor_io_peak_current = true,
+ .has_hda = true,
+ .has_hbr = true,
+};
+
+static const struct tegra_hdmi_config tegra124_hdmi_config = {
+ .tmds = tegra124_tmds_config,
+ .num_tmds = ARRAY_SIZE(tegra124_tmds_config),
+ .fuse_override_offset = HDMI_NV_PDISP_SOR_PAD_CTLS0,
+ .fuse_override_value = 1 << 31,
+ .has_sor_io_peak_current = true,
+ .has_hda = true,
+ .has_hbr = true,
+};
+
+static const struct of_device_id tegra_hdmi_of_match[] = {
+ { .compatible = "nvidia,tegra124-hdmi", .data = &tegra124_hdmi_config },
+ { .compatible = "nvidia,tegra114-hdmi", .data = &tegra114_hdmi_config },
+ { .compatible = "nvidia,tegra30-hdmi", .data = &tegra30_hdmi_config },
+ { .compatible = "nvidia,tegra20-hdmi", .data = &tegra20_hdmi_config },
+ { },
+};
+MODULE_DEVICE_TABLE(of, tegra_hdmi_of_match);
+
+static irqreturn_t tegra_hdmi_irq(int irq, void *data)
+{
+ struct tegra_hdmi *hdmi = data;
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_INT_STATUS);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_INT_STATUS);
+
+ if (value & INT_CODEC_SCRATCH0) {
+ unsigned int format;
+ u32 value;
+
+ value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0);
+
+ if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) {
+ format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK;
+
+ tegra_hda_parse_format(format, &hdmi->format);
+ tegra_hdmi_reconfigure_audio(hdmi);
+ } else {
+ tegra_hdmi_disable_audio_infoframe(hdmi);
+ tegra_hdmi_disable_audio(hdmi);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int tegra_hdmi_probe(struct platform_device *pdev)
+{
+ struct tegra_hdmi *hdmi;
+ int err;
+
+ hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ hdmi->config = of_device_get_match_data(&pdev->dev);
+ hdmi->dev = &pdev->dev;
+
+ hdmi->audio_source = AUTO;
+ hdmi->stereo = false;
+ hdmi->dvi = false;
+
+ mutex_init(&hdmi->audio_lock);
+
+ hdmi->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(hdmi->clk)) {
+ dev_err(&pdev->dev, "failed to get clock\n");
+ return PTR_ERR(hdmi->clk);
+ }
+
+ hdmi->rst = devm_reset_control_get(&pdev->dev, "hdmi");
+ if (IS_ERR(hdmi->rst)) {
+ dev_err(&pdev->dev, "failed to get reset\n");
+ return PTR_ERR(hdmi->rst);
+ }
+
+ hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent");
+ if (IS_ERR(hdmi->clk_parent))
+ return PTR_ERR(hdmi->clk_parent);
+
+ err = clk_set_parent(hdmi->clk, hdmi->clk_parent);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to setup clocks: %d\n", err);
+ return err;
+ }
+
+ hdmi->hdmi = devm_regulator_get(&pdev->dev, "hdmi");
+ err = PTR_ERR_OR_ZERO(hdmi->hdmi);
+ if (err)
+ return dev_err_probe(&pdev->dev, err,
+ "failed to get HDMI regulator\n");
+
+ hdmi->pll = devm_regulator_get(&pdev->dev, "pll");
+ err = PTR_ERR_OR_ZERO(hdmi->pll);
+ if (err)
+ return dev_err_probe(&pdev->dev, err,
+ "failed to get PLL regulator\n");
+
+ hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd");
+ err = PTR_ERR_OR_ZERO(hdmi->vdd);
+ if (err)
+ return dev_err_probe(&pdev->dev, err,
+ "failed to get VDD regulator\n");
+
+ hdmi->output.dev = &pdev->dev;
+
+ err = tegra_output_probe(&hdmi->output);
+ if (err < 0)
+ return err;
+
+ hdmi->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(hdmi->regs))
+ return PTR_ERR(hdmi->regs);
+
+ err = platform_get_irq(pdev, 0);
+ if (err < 0)
+ return err;
+
+ hdmi->irq = err;
+
+ err = devm_request_irq(hdmi->dev, hdmi->irq, tegra_hdmi_irq, 0,
+ dev_name(hdmi->dev), hdmi);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to request IRQ#%u: %d\n",
+ hdmi->irq, err);
+ return err;
+ }
+
+ platform_set_drvdata(pdev, hdmi);
+
+ err = devm_pm_runtime_enable(&pdev->dev);
+ if (err)
+ return err;
+
+ err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev);
+ if (err)
+ return err;
+
+ INIT_LIST_HEAD(&hdmi->client.list);
+ hdmi->client.ops = &hdmi_client_ops;
+ hdmi->client.dev = &pdev->dev;
+
+ err = host1x_client_register(&hdmi->client);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to register host1x client: %d\n",
+ err);
+ return err;
+ }
+
+ return 0;
+}
+
+static void tegra_hdmi_remove(struct platform_device *pdev)
+{
+ struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
+
+ host1x_client_unregister(&hdmi->client);
+
+ tegra_output_remove(&hdmi->output);
+}
+
+struct platform_driver tegra_hdmi_driver = {
+ .driver = {
+ .name = "tegra-hdmi",
+ .of_match_table = tegra_hdmi_of_match,
+ },
+ .probe = tegra_hdmi_probe,
+ .remove_new = tegra_hdmi_remove,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 06:46:59 +0000