Merge tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for the 5.1 merge window.

  The big changes I'd highlight are:
   - nouveau has HMM support now, there is finally an in-tree user so we
     can quieten down the rip it out people.
   - i915 now enables fastboot by default on Skylake+
   - Displayport Multistream support has been refactored and should
     hopefully be more reliable.

  Core:
   - header cleanups aiming towards removing drmP.h
   - dma-buf fence seqnos to 64-bits
   - common helper for DP mst hotplug for radeon,i915,amdgpu + new
     refcounting scheme
   - MST i2c improvements
   - drm_syncobj_cb removal
   - ARM FB compression fourcc
   - P010 + P016 fourcc
   - allwinner tiled format modifier
   - i2c over aux I2C_M_STOP support
   - DRM_AUTH handling fixes

  TTM:
   - ref/unref renaming

  New driver:
   - ARM komeda display driver

  scheduler:
   - refactor mirror list handling
   - rework hw fence processing
   - 0 run queue entity fix

  bridge:
   - TI DS90C185 LVDS bridge
   - thc631lvdm83d bridge improvements
   - cadence + allwinner DSI ported to generic phy

  panels:
   - Sitronix ST7701 panel
   - Kingdisplay KD097D04
   - LeMaker BL035-RGB-002
   - PDA 91-00156-A0
   - Innolux EE101IA-01D

  i915:
   - Enable fastboot by default on SKL+/VLV/CHV
   - Export RPCS configuration for ICL media driver
   - Coffelake PCI ID
   - CNL clocks setup fixes
   - ACPI/PMIC support for MIPI/DSI
   - Per-engine WA init for all engines
   - Shrinker locking fixes
   - Kerneldoc updates
   - Lots of ring improvements and reset fixes
   - Coffeelake GVT Support
   - VFIO GVT EDID Region support
   - runtime PM wakeref tracking
   - ILK->IVB primary plane enable delays
   - userptr mutex locking fixes
   - DSI fixes
   - LVDS/TV cleanups
   - HW readout fixes
   - LUT robustness fixes
   - ICL display and watermark fixes
   - gem mmap race fix

  amdgpu:
   - add scheduled dependencies interface
   - DCC on scanout surfaces
   - vega10/20 BACO support
   - Multiple IH rings on soc15
   - XGMI locking fixes
   - DC i2c/aux cleanups
   - runtime SMU debug interface
   - Kexec improvmeents
   - SR-IOV fixes
   - DC freesync + ABM fixes
   - GDS fixes
   - GPUVM fixes
   - vega20 PCIE DPM switching fixes
   - Context priority handling fixes

  radeon:
   - fix missing break in evergreen parser

  nouveau:
   - SVM support via HMM

  msm:
   - QCOM Compressed modifier support

  exynos:
   - s5pv210 rotator support

  imx:
   - zpos property support
   - pending update fixes

  v3d:
   - cache flush improvments

  vc4:
   - reflection support
   - HDMI overscan support

  tegra:
   - CEC refactoring
   - HDMI audio fixes
   - Tegra186 prep work
   - SOR crossbar device tree fixes

  sun4i:
   - implicit fencing support
   - YUV and scalar support improvements
   - A23 support
   - tiling fixes

  atmel-hlcdc:
   - clipping and rotation property fixes

  qxl:
   - BO and PRIME improvements
   - generic fbdev emulation

  dw-hdmi:
   - HDMI 2.0 2160p
   - YUV420 ouput

  rockchip:
   - implicit fencing support
   - reflection proerties

  virtio-gpu:
   - use generic fbdev emulation

  tilcdc:
   - cpufreq vs crtc init fix

  rcar-du:
   - R8A774C0 support
   - D3/E3 RGB output routing fixes and DPAD0 support
   - RA87744 LVDS support

  bochs:
   - atomic and generic fbdev emulation
   - ID mismatch error on bochs load

  meson:
   - remove firmware fbs"

* tag 'drm-next-2019-03-06' of git://anongit.freedesktop.org/drm/drm: (1130 commits)
  drm/amd/display: Use vrr friendly pageflip throttling in DC.
  drm/imx: only send commit done event when all state has been applied
  drm/imx: allow building under COMPILE_TEST
  drm/imx: imx-tve: depend on COMMON_CLK
  drm/imx: ipuv3-plane: add zpos property
  drm/imx: ipuv3-plane: add function to query atomic update status
  gpu: ipu-v3: prg: add function to get channel configure status
  gpu: ipu-v3: pre: add double buffer status readback
  drm/amdgpu: Bump amdgpu version for context priority override.
  drm/amdgpu/powerplay: fix typo in BACO header guards
  drm/amdgpu/powerplay: fix return codes in BACO code
  drm/amdgpu: add missing license on baco files
  drm/bochs: Fix the ID mismatch error
  drm/nouveau/dmem: use dma addresses during migration copies
  drm/nouveau/dmem: use physical vram addresses during migration copies
  drm/nouveau/dmem: extend copy function to allow direct use of physical addresses
  drm/nouveau/svm: new ioctl to migrate process memory to GPU memory
  drm/nouveau/dmem: device memory helpers for SVM
  drm/nouveau/svm: initial support for shared virtual memory
  drm/nouveau: prepare for enabling svm with existing userspace interfaces
  ...

1 files changed, 68 insertions, 154 deletions

diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 0082468f703c..47c55974756d 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -11,6 +11,7 @@
 #include <linux/debugfs.h>
 #include <linux/gpio.h>
 #include <linux/hdmi.h>
+#include <linux/math64.h>
 #include <linux/of_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
@@ -18,12 +19,9 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
-#include <drm/drm_crtc_helper.h>
-
-#include <sound/hda_verbs.h>
-
-#include <media/cec-notifier.h>
+#include <drm/drm_probe_helper.h>
 
+#include "hda.h"
 #include "hdmi.h"
 #include "drm.h"
 #include "dc.h"
@@ -71,8 +69,7 @@ struct tegra_hdmi {
 	const struct tegra_hdmi_config *config;
 
 	unsigned int audio_source;
-	unsigned int audio_sample_rate;
-	unsigned int audio_channels;
+	struct tegra_hda_format format;
 
 	unsigned int pixel_clock;
 	bool stereo;
@@ -119,68 +116,11 @@ static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value,
 }
 
 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 },
-};
-
 static const struct tmds_config tegra20_tmds_config[] = {
 	{ /* slow pixel clock modes */
 		.pclk = 27000000,
@@ -418,52 +358,53 @@ static const struct tmds_config tegra124_tmds_config[] = {
 	},
 };
 
-static const struct tegra_hdmi_audio_config *
-tegra_hdmi_get_audio_config(unsigned int sample_rate, unsigned int pclk)
+static int
+tegra_hdmi_get_audio_config(unsigned int audio_freq, unsigned int pix_clock,
+			    struct tegra_hdmi_audio_config *config)
 {
-	const struct tegra_hdmi_audio_config *table;
-
-	switch (sample_rate) {
-	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++;
+	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 NULL;
+	return config->n != -1 ? 0 : -EINVAL;
 }
 
 static void tegra_hdmi_setup_audio_fs_tables(struct tegra_hdmi *hdmi)
@@ -510,7 +451,7 @@ static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value)
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(regs); i++) {
-		if (regs[i].sample_rate == hdmi->audio_sample_rate) {
+		if (regs[i].sample_rate == hdmi->format.sample_rate) {
 			tegra_hdmi_writel(hdmi, value, regs[i].offset);
 			break;
 		}
@@ -519,8 +460,9 @@ static void tegra_hdmi_write_aval(struct tegra_hdmi *hdmi, u32 value)
 
 static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
 {
-	const struct tegra_hdmi_audio_config *config;
+	struct tegra_hdmi_audio_config config;
 	u32 source, value;
+	int err;
 
 	switch (hdmi->audio_source) {
 	case HDA:
@@ -564,7 +506,7 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
 		 * play back system startup sounds early. It is possibly not
 		 * needed on Linux at all.
 		 */
-		if (hdmi->audio_channels == 2)
+		if (hdmi->format.channels == 2)
 			value = SOR_AUDIO_CNTRL0_INJECT_NULLSMPL;
 		else
 			value = 0;
@@ -595,25 +537,28 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
 		tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_AUDIO_SPARE0);
 	}
 
-	config = tegra_hdmi_get_audio_config(hdmi->audio_sample_rate,
-					     hdmi->pixel_clock);
-	if (!config) {
+	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->audio_sample_rate, hdmi->pixel_clock);
-		return -EINVAL;
+			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);
+		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,
+	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),
+	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);
@@ -624,7 +569,7 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi)
 	tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_AUDIO_N);
 
 	if (hdmi->config->has_hda)
-		tegra_hdmi_write_aval(hdmi, config->aval);
+		tegra_hdmi_write_aval(hdmi, config.aval);
 
 	tegra_hdmi_setup_audio_fs_tables(hdmi);
 
@@ -741,7 +686,8 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
 	u8 buffer[17];
 	ssize_t err;
 
-	err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false);
+	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;
@@ -787,7 +733,7 @@ static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
 		return;
 	}
 
-	frame.channels = hdmi->audio_channels;
+	frame.channels = hdmi->format.channels;
 
 	err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 	if (err < 0) {
@@ -1589,24 +1535,6 @@ static const struct of_device_id tegra_hdmi_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, tegra_hdmi_of_match);
 
-static void hda_format_parse(unsigned int format, unsigned int *rate,
-			     unsigned int *channels)
-{
-	unsigned int mul, div;
-
-	if (format & AC_FMT_BASE_44K)
-		*rate = 44100;
-	else
-		*rate = 48000;
-
-	mul = (format & AC_FMT_MULT_MASK) >> AC_FMT_MULT_SHIFT;
-	div = (format & AC_FMT_DIV_MASK) >> AC_FMT_DIV_SHIFT;
-
-	*rate = *rate * (mul + 1) / (div + 1);
-
-	*channels = (format & AC_FMT_CHAN_MASK) >> AC_FMT_CHAN_SHIFT;
-}
-
 static irqreturn_t tegra_hdmi_irq(int irq, void *data)
 {
 	struct tegra_hdmi *hdmi = data;
@@ -1623,14 +1551,9 @@ static irqreturn_t tegra_hdmi_irq(int irq, void *data)
 		value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_AUDIO_HDA_CODEC_SCRATCH0);
 
 		if (value & SOR_AUDIO_HDA_CODEC_SCRATCH0_VALID) {
-			unsigned int sample_rate, channels;
-
 			format = value & SOR_AUDIO_HDA_CODEC_SCRATCH0_FMT_MASK;
 
-			hda_format_parse(format, &sample_rate, &channels);
-
-			hdmi->audio_sample_rate = sample_rate;
-			hdmi->audio_channels = channels;
+			tegra_hda_parse_format(format, &hdmi->format);
 
 			err = tegra_hdmi_setup_audio(hdmi);
 			if (err < 0) {
@@ -1664,8 +1587,6 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 	hdmi->dev = &pdev->dev;
 
 	hdmi->audio_source = AUTO;
-	hdmi->audio_sample_rate = 48000;
-	hdmi->audio_channels = 2;
 	hdmi->stereo = false;
 	hdmi->dvi = false;
 
@@ -1709,10 +1630,6 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 		return PTR_ERR(hdmi->vdd);
 	}
 
-	hdmi->output.notifier = cec_notifier_get(&pdev->dev);
-	if (hdmi->output.notifier == NULL)
-		return -ENOMEM;
-
 	hdmi->output.dev = &pdev->dev;
 
 	err = tegra_output_probe(&hdmi->output);
@@ -1771,9 +1688,6 @@ static int tegra_hdmi_remove(struct platform_device *pdev)
 
 	tegra_output_remove(&hdmi->output);
 
-	if (hdmi->output.notifier)
-		cec_notifier_put(hdmi->output.notifier);
-
 	return 0;
 }