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path: root/drivers/gpu/host1x/drm/hdmi.c
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Diffstat (limited to 'drivers/gpu/host1x/drm/hdmi.c')
-rw-r--r--drivers/gpu/host1x/drm/hdmi.c1313
1 files changed, 1313 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/drm/hdmi.c b/drivers/gpu/host1x/drm/hdmi.c
new file mode 100644
index 000000000000..01097da09f7f
--- /dev/null
+++ b/drivers/gpu/host1x/drm/hdmi.c
@@ -0,0 +1,1313 @@
+/*
+ * 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/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/clk/tegra.h>
+
+#include <drm/drm_edid.h>
+
+#include "hdmi.h"
+#include "drm.h"
+#include "dc.h"
+#include "host1x_client.h"
+
+struct tegra_hdmi {
+ struct host1x_client client;
+ struct tegra_output output;
+ struct device *dev;
+
+ struct regulator *vdd;
+ struct regulator *pll;
+
+ void __iomem *regs;
+ unsigned int irq;
+
+ struct clk *clk_parent;
+ struct clk *clk;
+
+ unsigned int audio_source;
+ unsigned int audio_freq;
+ bool stereo;
+ bool dvi;
+
+ struct drm_info_list *debugfs_files;
+ struct drm_minor *minor;
+ struct dentry *debugfs;
+};
+
+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 unsigned long tegra_hdmi_readl(struct tegra_hdmi *hdmi,
+ unsigned long reg)
+{
+ return readl(hdmi->regs + (reg << 2));
+}
+
+static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, unsigned long val,
+ unsigned long reg)
+{
+ writel(val, hdmi->regs + (reg << 2));
+}
+
+struct tegra_hdmi_audio_config {
+ unsigned int pclk;
+ unsigned int n;
+ unsigned int cts;
+ unsigned int aval;
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_32k[] = {
+ { 25200000, 4096, 25200, 24000 },
+ { 27000000, 4096, 27000, 24000 },
+ { 74250000, 4096, 74250, 24000 },
+ { 148500000, 4096, 148500, 24000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_44_1k[] = {
+ { 25200000, 5880, 26250, 25000 },
+ { 27000000, 5880, 28125, 25000 },
+ { 74250000, 4704, 61875, 20000 },
+ { 148500000, 4704, 123750, 20000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_48k[] = {
+ { 25200000, 6144, 25200, 24000 },
+ { 27000000, 6144, 27000, 24000 },
+ { 74250000, 6144, 74250, 24000 },
+ { 148500000, 6144, 148500, 24000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_88_2k[] = {
+ { 25200000, 11760, 26250, 25000 },
+ { 27000000, 11760, 28125, 25000 },
+ { 74250000, 9408, 61875, 20000 },
+ { 148500000, 9408, 123750, 20000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_96k[] = {
+ { 25200000, 12288, 25200, 24000 },
+ { 27000000, 12288, 27000, 24000 },
+ { 74250000, 12288, 74250, 24000 },
+ { 148500000, 12288, 148500, 24000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_176_4k[] = {
+ { 25200000, 23520, 26250, 25000 },
+ { 27000000, 23520, 28125, 25000 },
+ { 74250000, 18816, 61875, 20000 },
+ { 148500000, 18816, 123750, 20000 },
+ { 0, 0, 0, 0 },
+};
+
+static const struct tegra_hdmi_audio_config tegra_hdmi_audio_192k[] = {
+ { 25200000, 24576, 25200, 24000 },
+ { 27000000, 24576, 27000, 24000 },
+ { 74250000, 24576, 74250, 24000 },
+ { 148500000, 24576, 148500, 24000 },
+ { 0, 0, 0, 0 },
+};
+
+struct tmds_config {
+ unsigned int pclk;
+ u32 pll0;
+ u32 pll1;
+ u32 pe_current;
+ u32 drive_current;
+};
+
+static const struct tmds_config tegra2_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 tegra3_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 tegra_hdmi_audio_config *
+tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pclk)
+{
+ const struct tegra_hdmi_audio_config *table;
+
+ switch (audio_freq) {
+ case 32000:
+ table = tegra_hdmi_audio_32k;
+ break;
+
+ case 44100:
+ table = tegra_hdmi_audio_44_1k;
+ break;
+
+ case 48000:
+ table = tegra_hdmi_audio_48k;
+ break;
+
+ case 88200:
+ table = tegra_hdmi_audio_88_2k;
+ break;
+
+ case 96000:
+ table = tegra_hdmi_audio_96k;
+ break;
+
+ case 176400:
+ table = tegra_hdmi_audio_176_4k;
+ break;
+
+ case 192000:
+ table = tegra_hdmi_audio_192k;
+ break;
+
+ default:
+ return NULL;
+ }
+
+ while (table->pclk) {
+ if (table->pclk == pclk)
+ return table;
+
+ table++;
+ }
+
+ return NULL;
+}
+
+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 long value;
+ unsigned int delta;
+
+ if (f > 96000)
+ delta = 2;
+ else if (f > 480000)
+ 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 int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi, unsigned int pclk)
+{
+ struct device_node *node = hdmi->dev->of_node;
+ const struct tegra_hdmi_audio_config *config;
+ unsigned int offset = 0;
+ unsigned long value;
+
+ switch (hdmi->audio_source) {
+ case HDA:
+ value = AUDIO_CNTRL0_SOURCE_SELECT_HDAL;
+ break;
+
+ case SPDIF:
+ value = AUDIO_CNTRL0_SOURCE_SELECT_SPDIF;
+ break;
+
+ default:
+ value = AUDIO_CNTRL0_SOURCE_SELECT_AUTO;
+ break;
+ }
+
+ if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
+ value |= AUDIO_CNTRL0_ERROR_TOLERANCE(6) |
+ AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
+ } else {
+ value |= AUDIO_CNTRL0_INJECT_NULLSMPL;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
+
+ value = AUDIO_CNTRL0_ERROR_TOLERANCE(6) |
+ AUDIO_CNTRL0_FRAMES_PER_BLOCK(0xc0);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_CNTRL0);
+ }
+
+ config = tegra_hdmi_get_audio_config(hdmi->audio_freq, pclk);
+ if (!config) {
+ dev_err(hdmi->dev, "cannot set audio to %u at %u pclk\n",
+ hdmi->audio_freq, pclk);
+ return -EINVAL;
+ }
+
+ 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);
+
+ value = ACR_SUBPACK_CTS(config->cts);
+ tegra_hdmi_writel(hdmi, value, 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 (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
+ switch (hdmi->audio_freq) {
+ case 32000:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0320;
+ break;
+
+ case 44100:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0441;
+ break;
+
+ case 48000:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0480;
+ break;
+
+ case 88200:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0882;
+ break;
+
+ case 96000:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_0960;
+ break;
+
+ case 176400:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1764;
+ break;
+
+ case 192000:
+ offset = HDMI_NV_PDISP_SOR_AUDIO_AVAL_1920;
+ break;
+ }
+
+ tegra_hdmi_writel(hdmi, config->aval, offset);
+ }
+
+ tegra_hdmi_setup_audio_fs_tables(hdmi);
+
+ return 0;
+}
+
+static inline unsigned long tegra_hdmi_subpack(const u8 *ptr, size_t size)
+{
+ unsigned long 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;
+ unsigned long value;
+ size_t i, j;
+
+ 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;
+
+ if (hdmi->dvi) {
+ tegra_hdmi_writel(hdmi, 0,
+ HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+ return;
+ }
+
+ err = drm_hdmi_avi_infoframe_from_display_mode(&frame, 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);
+
+ tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
+ 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;
+
+ if (hdmi->dvi) {
+ tegra_hdmi_writel(hdmi, 0,
+ HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+ return;
+ }
+
+ err = hdmi_audio_infoframe_init(&frame);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to initialize audio infoframe: %d\n",
+ err);
+ return;
+ }
+
+ frame.channels = 2;
+
+ 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(10, err));
+
+ tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
+ HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+}
+
+static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
+{
+ struct hdmi_vendor_infoframe frame;
+ unsigned long value;
+ u8 buffer[10];
+ ssize_t err;
+
+ if (!hdmi->stereo) {
+ 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);
+ return;
+ }
+
+ memset(&frame, 0, sizeof(frame));
+
+ frame.type = HDMI_INFOFRAME_TYPE_VENDOR;
+ frame.version = 0x01;
+ frame.length = 6;
+
+ frame.data[0] = 0x03; /* regid0 */
+ frame.data[1] = 0x0c; /* regid1 */
+ frame.data[2] = 0x00; /* regid2 */
+ frame.data[3] = 0x02 << 5; /* video format */
+
+ /* TODO: 74 MHz limit? */
+ if (1) {
+ frame.data[4] = 0x00 << 4; /* 3D structure */
+ } else {
+ frame.data[4] = 0x08 << 4; /* 3D structure */
+ frame.data[5] = 0x00 << 4; /* 3D ext. data */
+ }
+
+ 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);
+
+ 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)
+{
+ unsigned long 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);
+
+ value = tmds->drive_current | DRIVE_CURRENT_FUSE_OVERRIDE;
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
+}
+
+static int tegra_output_hdmi_enable(struct tegra_output *output)
+{
+ unsigned int h_sync_width, h_front_porch, h_back_porch, i, rekey;
+ struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
+ struct drm_display_mode *mode = &dc->base.mode;
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ struct device_node *node = hdmi->dev->of_node;
+ unsigned int pulse_start, div82, pclk;
+ const struct tmds_config *tmds;
+ unsigned int num_tmds;
+ unsigned long value;
+ int retries = 1000;
+ int err;
+
+ pclk = 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 = regulator_enable(hdmi->vdd);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to enable VDD 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;
+ }
+
+ /*
+ * This assumes that the display controller will divide its parent
+ * clock by 2 to generate the pixel clock.
+ */
+ err = tegra_output_setup_clock(output, hdmi->clk, pclk * 2);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to setup clock: %d\n", err);
+ return err;
+ }
+
+ err = clk_set_rate(hdmi->clk, pclk);
+ if (err < 0)
+ return err;
+
+ err = clk_enable(hdmi->clk);
+ if (err < 0) {
+ dev_err(hdmi->dev, "failed to enable clock: %d\n", err);
+ return err;
+ }
+
+ tegra_periph_reset_assert(hdmi->clk);
+ usleep_range(1000, 2000);
+ tegra_periph_reset_deassert(hdmi->clk);
+
+ tegra_dc_writel(dc, VSYNC_H_POSITION(1),
+ DC_DISP_DISP_TIMING_OPTIONS);
+ tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE888,
+ 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_PULSE_2_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);
+
+ if (!hdmi->dvi) {
+ err = tegra_hdmi_setup_audio(hdmi, pclk);
+ if (err < 0)
+ hdmi->dvi = true;
+ }
+
+ if (of_device_is_compatible(node, "nvidia,tegra20-hdmi")) {
+ /*
+ * TODO: add ELD support
+ */
+ }
+
+ 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_writel(hdmi, 0x0,
+ HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ else
+ tegra_hdmi_writel(hdmi, GENERIC_CTRL_AUDIO,
+ HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+
+ tegra_hdmi_setup_avi_infoframe(hdmi, mode);
+ tegra_hdmi_setup_audio_infoframe(hdmi);
+ tegra_hdmi_setup_stereo_infoframe(hdmi);
+
+ /* TMDS CONFIG */
+ if (of_device_is_compatible(node, "nvidia,tegra30-hdmi")) {
+ num_tmds = ARRAY_SIZE(tegra3_tmds_config);
+ tmds = tegra3_tmds_config;
+ } else {
+ num_tmds = ARRAY_SIZE(tegra2_tmds_config);
+ tmds = tegra2_tmds_config;
+ }
+
+ for (i = 0; i < num_tmds; i++) {
+ if (pclk <= tmds[i].pclk) {
+ tegra_hdmi_setup_tmds(hdmi, &tmds[i]);
+ break;
+ }
+ }
+
+ tegra_hdmi_writel(hdmi,
+ SOR_SEQ_CTL_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 = 0x1c800;
+ value &= ~SOR_CSTM_ROTCLK(~0);
+ value |= SOR_CSTM_ROTCLK(2);
+ tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM);
+
+ tegra_dc_writel(dc, DISP_CTRL_MODE_STOP, DC_CMD_DISPLAY_COMMAND);
+ tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
+ tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
+
+ /* 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);
+
+ tegra_dc_writel(dc, HDMI_ENABLE, DC_DISP_DISP_WIN_OPTIONS);
+
+ value = PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
+ PW4_ENABLE | PM0_ENABLE | PM1_ENABLE;
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
+
+ value = DISP_CTRL_MODE_C_DISPLAY;
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
+
+ tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
+ tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
+
+ /* TODO: add HDCP support */
+
+ return 0;
+}
+
+static int tegra_output_hdmi_disable(struct tegra_output *output)
+{
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+
+ tegra_periph_reset_assert(hdmi->clk);
+ clk_disable(hdmi->clk);
+ regulator_disable(hdmi->pll);
+ regulator_disable(hdmi->vdd);
+
+ return 0;
+}
+
+static int tegra_output_hdmi_setup_clock(struct tegra_output *output,
+ struct clk *clk, unsigned long pclk)
+{
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ struct clk *base;
+ int err;
+
+ err = clk_set_parent(clk, hdmi->clk_parent);
+ if (err < 0) {
+ dev_err(output->dev, "failed to set parent: %d\n", err);
+ return err;
+ }
+
+ base = clk_get_parent(hdmi->clk_parent);
+
+ /*
+ * This assumes that the parent clock is pll_d_out0 or pll_d2_out
+ * respectively, each of which divides the base pll_d by 2.
+ */
+ err = clk_set_rate(base, pclk * 2);
+ if (err < 0)
+ dev_err(output->dev,
+ "failed to set base clock rate to %lu Hz\n",
+ pclk * 2);
+
+ return 0;
+}
+
+static int tegra_output_hdmi_check_mode(struct tegra_output *output,
+ struct drm_display_mode *mode,
+ enum drm_mode_status *status)
+{
+ struct tegra_hdmi *hdmi = to_hdmi(output);
+ unsigned long pclk = mode->clock * 1000;
+ 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;
+ else
+ *status = MODE_OK;
+
+ return 0;
+}
+
+static const struct tegra_output_ops hdmi_ops = {
+ .enable = tegra_output_hdmi_enable,
+ .disable = tegra_output_hdmi_disable,
+ .setup_clock = tegra_output_hdmi_setup_clock,
+ .check_mode = tegra_output_hdmi_check_mode,
+};
+
+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;
+
+#define DUMP_REG(name) \
+ seq_printf(s, "%-56s %#05x %08lx\n", #name, name, \
+ tegra_hdmi_readl(hdmi, name))
+
+ DUMP_REG(HDMI_CTXSW);
+ DUMP_REG(HDMI_NV_PDISP_SOR_STATE0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_STATE1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_STATE2);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AN_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AN_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CN_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CN_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AKSV_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_AKSV_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_BKSV_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_BKSV_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CKSV_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CKSV_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_DKSV_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_DKSV_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CMODE);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_MPRIME_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_MPRIME_LSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB2);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_SPRIME_LSB1);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_RI);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CS_MSB);
+ DUMP_REG(HDMI_NV_PDISP_RG_HDCP_CS_LSB);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU0);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU_RDATA0);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU1);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_EMU2);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_STATUS);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_SUBPACK0_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_STATUS);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_STATUS);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_HEADER);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK0_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK1_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK2_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GENERIC_SUBPACK3_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0320_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0441_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0882_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1764_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0480_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_0960_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_LOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_ACR_1920_SUBPACK_HIGH);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_VSYNC_KEEPOUT);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_VSYNC_WINDOW);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_STATUS);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_GCP_SUBPACK);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS1);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_CHANNEL_STATUS2);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_EMU0);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_EMU1);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_EMU1_RDATA);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_SPARE);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS1);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_SPDIF_CHN_STATUS2);
+ DUMP_REG(HDMI_NV_PDISP_HDMI_HDCPRIF_ROM_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CAP);
+ DUMP_REG(HDMI_NV_PDISP_SOR_PWR);
+ DUMP_REG(HDMI_NV_PDISP_SOR_TEST);
+ DUMP_REG(HDMI_NV_PDISP_SOR_PLL0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_PLL1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_PLL2);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CSTM);
+ DUMP_REG(HDMI_NV_PDISP_SOR_LVDS);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CRCA);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CRCB);
+ DUMP_REG(HDMI_NV_PDISP_SOR_BLANK);
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_CTL);
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(0));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(1));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(2));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(3));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(4));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(5));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(6));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(7));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(8));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(9));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(10));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(11));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(12));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(13));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(14));
+ DUMP_REG(HDMI_NV_PDISP_SOR_SEQ_INST(15));
+ DUMP_REG(HDMI_NV_PDISP_SOR_VCRCA0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_VCRCA1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CCRCA0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_CCRCA1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_EDATAA0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_EDATAA1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_COUNTA0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_COUNTA1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_DEBUGA0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_DEBUGA1);
+ DUMP_REG(HDMI_NV_PDISP_SOR_TRIG);
+ DUMP_REG(HDMI_NV_PDISP_SOR_MSCHECK);
+ DUMP_REG(HDMI_NV_PDISP_SOR_LANE_DRIVE_CURRENT);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG0);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG1);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_DEBUG2);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(0));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(1));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(2));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(3));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(4));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(5));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_FS(6));
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_PULSE_WIDTH);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_THRESHOLD);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_CNTRL0);
+ DUMP_REG(HDMI_NV_PDISP_AUDIO_N);
+ DUMP_REG(HDMI_NV_PDISP_HDCPRIF_ROM_TIMING);
+ DUMP_REG(HDMI_NV_PDISP_SOR_REFCLK);
+ DUMP_REG(HDMI_NV_PDISP_CRC_CONTROL);
+ DUMP_REG(HDMI_NV_PDISP_INPUT_CONTROL);
+ DUMP_REG(HDMI_NV_PDISP_SCRATCH);
+ DUMP_REG(HDMI_NV_PDISP_PE_CURRENT);
+ DUMP_REG(HDMI_NV_PDISP_KEY_CTRL);
+ DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG0);
+ DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG1);
+ DUMP_REG(HDMI_NV_PDISP_KEY_DEBUG2);
+ DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_0);
+ DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_1);
+ DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_2);
+ DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_3);
+ DUMP_REG(HDMI_NV_PDISP_KEY_HDCP_KEY_TRIG);
+ DUMP_REG(HDMI_NV_PDISP_KEY_SKEY_INDEX);
+ DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_CNTRL0);
+ DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_HDA_ELD_BUFWR);
+ DUMP_REG(HDMI_NV_PDISP_SOR_AUDIO_HDA_PRESENSE);
+
+#undef DUMP_REG
+
+ return 0;
+}
+
+static struct drm_info_list debugfs_files[] = {
+ { "regs", tegra_hdmi_show_regs, 0, NULL },
+};
+
+static int tegra_hdmi_debugfs_init(struct tegra_hdmi *hdmi,
+ struct drm_minor *minor)
+{
+ unsigned int i;
+ int err;
+
+ hdmi->debugfs = debugfs_create_dir("hdmi", minor->debugfs_root);
+ if (!hdmi->debugfs)
+ return -ENOMEM;
+
+ hdmi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),
+ GFP_KERNEL);
+ if (!hdmi->debugfs_files) {
+ err = -ENOMEM;
+ goto remove;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
+ hdmi->debugfs_files[i].data = hdmi;
+
+ err = drm_debugfs_create_files(hdmi->debugfs_files,
+ ARRAY_SIZE(debugfs_files),
+ hdmi->debugfs, minor);
+ if (err < 0)
+ goto free;
+
+ hdmi->minor = minor;
+
+ return 0;
+
+free:
+ kfree(hdmi->debugfs_files);
+ hdmi->debugfs_files = NULL;
+remove:
+ debugfs_remove(hdmi->debugfs);
+ hdmi->debugfs = NULL;
+
+ return err;
+}
+
+static int tegra_hdmi_debugfs_exit(struct tegra_hdmi *hdmi)
+{
+ drm_debugfs_remove_files(hdmi->debugfs_files, ARRAY_SIZE(debugfs_files),
+ hdmi->minor);
+ hdmi->minor = NULL;
+
+ kfree(hdmi->debugfs_files);
+ hdmi->debugfs_files = NULL;
+
+ debugfs_remove(hdmi->debugfs);
+ hdmi->debugfs = NULL;
+
+ return 0;
+}
+
+static int tegra_hdmi_drm_init(struct host1x_client *client,
+ struct drm_device *drm)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ int err;
+
+ hdmi->output.type = TEGRA_OUTPUT_HDMI;
+ hdmi->output.dev = client->dev;
+ hdmi->output.ops = &hdmi_ops;
+
+ err = tegra_output_init(drm, &hdmi->output);
+ if (err < 0) {
+ dev_err(client->dev, "output setup failed: %d\n", err);
+ return err;
+ }
+
+ if (IS_ENABLED(CONFIG_DEBUG_FS)) {
+ err = tegra_hdmi_debugfs_init(hdmi, drm->primary);
+ if (err < 0)
+ dev_err(client->dev, "debugfs setup failed: %d\n", err);
+ }
+
+ return 0;
+}
+
+static int tegra_hdmi_drm_exit(struct host1x_client *client)
+{
+ struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+ int err;
+
+ if (IS_ENABLED(CONFIG_DEBUG_FS)) {
+ err = tegra_hdmi_debugfs_exit(hdmi);
+ if (err < 0)
+ dev_err(client->dev, "debugfs cleanup failed: %d\n",
+ err);
+ }
+
+ err = tegra_output_disable(&hdmi->output);
+ if (err < 0) {
+ dev_err(client->dev, "output failed to disable: %d\n", err);
+ return err;
+ }
+
+ err = tegra_output_exit(&hdmi->output);
+ if (err < 0) {
+ dev_err(client->dev, "output cleanup failed: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static const struct host1x_client_ops hdmi_client_ops = {
+ .drm_init = tegra_hdmi_drm_init,
+ .drm_exit = tegra_hdmi_drm_exit,
+};
+
+static int tegra_hdmi_probe(struct platform_device *pdev)
+{
+ struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent);
+ struct tegra_hdmi *hdmi;
+ struct resource *regs;
+ int err;
+
+ hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ hdmi->dev = &pdev->dev;
+ hdmi->audio_source = AUTO;
+ hdmi->audio_freq = 44100;
+ 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);
+ }
+
+ err = clk_prepare(hdmi->clk);
+ if (err < 0)
+ return err;
+
+ hdmi->clk_parent = devm_clk_get(&pdev->dev, "parent");
+ if (IS_ERR(hdmi->clk_parent))
+ return PTR_ERR(hdmi->clk_parent);
+
+ err = clk_prepare(hdmi->clk_parent);
+ if (err < 0)
+ return err;
+
+ 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->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->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->output.dev = &pdev->dev;
+
+ err = tegra_output_parse_dt(&hdmi->output);
+ if (err < 0)
+ return err;
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs)
+ return -ENXIO;
+
+ 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;
+
+ hdmi->client.ops = &hdmi_client_ops;
+ INIT_LIST_HEAD(&hdmi->client.list);
+ hdmi->client.dev = &pdev->dev;
+
+ err = host1x_register_client(host1x, &hdmi->client);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to register host1x client: %d\n",
+ err);
+ return err;
+ }
+
+ platform_set_drvdata(pdev, hdmi);
+
+ return 0;
+}
+
+static int tegra_hdmi_remove(struct platform_device *pdev)
+{
+ struct host1x_drm *host1x = host1x_get_drm_data(pdev->dev.parent);
+ struct tegra_hdmi *hdmi = platform_get_drvdata(pdev);
+ int err;
+
+ err = host1x_unregister_client(host1x, &hdmi->client);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
+ err);
+ return err;
+ }
+
+ clk_unprepare(hdmi->clk_parent);
+ clk_unprepare(hdmi->clk);
+
+ return 0;
+}
+
+static struct of_device_id tegra_hdmi_of_match[] = {
+ { .compatible = "nvidia,tegra30-hdmi", },
+ { .compatible = "nvidia,tegra20-hdmi", },
+ { },
+};
+
+struct platform_driver tegra_hdmi_driver = {
+ .driver = {
+ .name = "tegra-hdmi",
+ .owner = THIS_MODULE,
+ .of_match_table = tegra_hdmi_of_match,
+ },
+ .probe = tegra_hdmi_probe,
+ .remove = tegra_hdmi_remove,
+};