Merge tag 'drm/tegra/for-4.15-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v4.15-rc1

This contains a bit of cleanup and some minor fixes for the host1x and
Tegra DRM drivers. There's also some more preparatory work for Tegra186
support which I'm not quite ready to send upstream because the GPIO
driver needed for HDMI support has been stuck for months, and we can't
do much without it. Hopefully that driver will land in v4.15, which
would mean we could go ahead with Tegra186 display support in v4.16.

* tag 'drm/tegra/for-4.15-rc1' of git://anongit.freedesktop.org/tegra/linux: (21 commits)
  drm/tegra: hdmi: Add cec-notifier support
  drm/tegra: dc: Perform a complete reset sequence
  drm/tegra: dc: Make sure to set the module clock rate
  drm/tegra: dc: Simplify atomic plane helper functions
  drm/tegra: dc: Move some declarations to dc.h
  drm/tegra: vic: Use of_device_get_match_data()
  drm/tegra: sor: Use of_device_get_match_data()
  drm/tegra: hdmi: Use of_device_get_match_data()
  drm/tegra: dc: Use of_device_get_match_data()
  drm/tegra: Use u64_to_user_ptr helper
  gpu: host1x: Fix incorrect comment for channel_request
  gpu: host1x: Disassemble more instructions
  gpu: host1x: Improve debug disassembly formatting
  gpu: host1x: Enable gather filter
  gpu: host1x: Enable Tegra186 syncpoint protection
  gpu: host1x: Call of_dma_configure() after setting bus
  drm/tegra: Add Tegra186 support for VIC
  gpu: host1x: Add Tegra186 support
  dt-bindings: host1x: Add Tegra186 information
  gpu: host1x: syncpt: Request syncpoints per client
  ...

1 files changed, 38 insertions, 46 deletions

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 4df39112e38e..24a5ef4f5bb8 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -10,6 +10,7 @@
 #include <linux/clk.h>
 #include <linux/debugfs.h>
 #include <linux/iommu.h>
+#include <linux/of_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>
 
@@ -23,16 +24,6 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
 
-struct tegra_dc_soc_info {
-	bool supports_border_color;
-	bool supports_interlacing;
-	bool supports_cursor;
-	bool supports_block_linear;
-	unsigned int pitch_align;
-	bool has_powergate;
-	bool broken_reset;
-};
-
 struct tegra_plane {
 	struct drm_plane base;
 	unsigned int index;
@@ -559,14 +550,21 @@ static int tegra_plane_atomic_check(struct drm_plane *plane,
 	return 0;
 }
 
-static void tegra_dc_disable_window(struct tegra_dc *dc, int index)
+static void tegra_plane_atomic_disable(struct drm_plane *plane,
+				       struct drm_plane_state *old_state)
 {
+	struct tegra_dc *dc = to_tegra_dc(old_state->crtc);
+	struct tegra_plane *p = to_tegra_plane(plane);
 	unsigned long flags;
 	u32 value;
 
+	/* rien ne va plus */
+	if (!old_state || !old_state->crtc)
+		return;
+
 	spin_lock_irqsave(&dc->lock, flags);
 
-	value = WINDOW_A_SELECT << index;
+	value = WINDOW_A_SELECT << p->index;
 	tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER);
 
 	value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS);
@@ -591,7 +589,7 @@ static void tegra_plane_atomic_update(struct drm_plane *plane,
 		return;
 
 	if (!plane->state->visible)
-		return tegra_dc_disable_window(dc, p->index);
+		return tegra_plane_atomic_disable(plane, old_state);
 
 	memset(&window, 0, sizeof(window));
 	window.src.x = plane->state->src.x1 >> 16;
@@ -627,25 +625,10 @@ static void tegra_plane_atomic_update(struct drm_plane *plane,
 	tegra_dc_setup_window(dc, p->index, &window);
 }
 
-static void tegra_plane_atomic_disable(struct drm_plane *plane,
-				       struct drm_plane_state *old_state)
-{
-	struct tegra_plane *p = to_tegra_plane(plane);
-	struct tegra_dc *dc;
-
-	/* rien ne va plus */
-	if (!old_state || !old_state->crtc)
-		return;
-
-	dc = to_tegra_dc(old_state->crtc);
-
-	tegra_dc_disable_window(dc, p->index);
-}
-
-static const struct drm_plane_helper_funcs tegra_primary_plane_helper_funcs = {
+static const struct drm_plane_helper_funcs tegra_plane_helper_funcs = {
 	.atomic_check = tegra_plane_atomic_check,
-	.atomic_update = tegra_plane_atomic_update,
 	.atomic_disable = tegra_plane_atomic_disable,
+	.atomic_update = tegra_plane_atomic_update,
 };
 
 static struct drm_plane *tegra_dc_primary_plane_create(struct drm_device *drm,
@@ -685,7 +668,7 @@ static struct drm_plane *tegra_dc_primary_plane_create(struct drm_device *drm,
 		return ERR_PTR(err);
 	}
 
-	drm_plane_helper_add(&plane->base, &tegra_primary_plane_helper_funcs);
+	drm_plane_helper_add(&plane->base, &tegra_plane_helper_funcs);
 
 	return &plane->base;
 }
@@ -880,12 +863,6 @@ static const uint32_t tegra_overlay_plane_formats[] = {
 	DRM_FORMAT_YUV422,
 };
 
-static const struct drm_plane_helper_funcs tegra_overlay_plane_helper_funcs = {
-	.atomic_check = tegra_plane_atomic_check,
-	.atomic_update = tegra_plane_atomic_update,
-	.atomic_disable = tegra_plane_atomic_disable,
-};
-
 static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm,
 						       struct tegra_dc *dc,
 						       unsigned int index)
@@ -913,7 +890,7 @@ static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm,
 		return ERR_PTR(err);
 	}
 
-	drm_plane_helper_add(&plane->base, &tegra_overlay_plane_helper_funcs);
+	drm_plane_helper_add(&plane->base, &tegra_plane_helper_funcs);
 
 	return &plane->base;
 }
@@ -1161,6 +1138,11 @@ static void tegra_dc_commit_state(struct tegra_dc *dc,
 
 	value = SHIFT_CLK_DIVIDER(state->div) | PIXEL_CLK_DIVIDER_PCD1;
 	tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL);
+
+	err = clk_set_rate(dc->clk, state->pclk);
+	if (err < 0)
+		dev_err(dc->dev, "failed to set clock %pC to %lu Hz: %d\n",
+			dc->clk, state->pclk, err);
 }
 
 static void tegra_dc_stop(struct tegra_dc *dc)
@@ -1756,7 +1738,7 @@ static int tegra_dc_init(struct host1x_client *client)
 	struct drm_plane *cursor = NULL;
 	int err;
 
-	dc->syncpt = host1x_syncpt_request(dc->dev, flags);
+	dc->syncpt = host1x_syncpt_request(client, flags);
 	if (!dc->syncpt)
 		dev_warn(dc->dev, "failed to allocate syncpoint\n");
 
@@ -1985,7 +1967,6 @@ static int tegra_dc_parse_dt(struct tegra_dc *dc)
 
 static int tegra_dc_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *id;
 	struct resource *regs;
 	struct tegra_dc *dc;
 	int err;
@@ -1994,14 +1975,11 @@ static int tegra_dc_probe(struct platform_device *pdev)
 	if (!dc)
 		return -ENOMEM;
 
-	id = of_match_node(tegra_dc_of_match, pdev->dev.of_node);
-	if (!id)
-		return -ENODEV;
+	dc->soc = of_device_get_match_data(&pdev->dev);
 
 	spin_lock_init(&dc->lock);
 	INIT_LIST_HEAD(&dc->list);
 	dc->dev = &pdev->dev;
-	dc->soc = id->data;
 
 	err = tegra_dc_parse_dt(dc);
 	if (err < 0)
@@ -2019,8 +1997,22 @@ static int tegra_dc_probe(struct platform_device *pdev)
 		return PTR_ERR(dc->rst);
 	}
 
-	if (!dc->soc->broken_reset)
-		reset_control_assert(dc->rst);
+	/* assert reset and disable clock */
+	if (!dc->soc->broken_reset) {
+		err = clk_prepare_enable(dc->clk);
+		if (err < 0)
+			return err;
+
+		usleep_range(2000, 4000);
+
+		err = reset_control_assert(dc->rst);
+		if (err < 0)
+			return err;
+
+		usleep_range(2000, 4000);
+
+		clk_disable_unprepare(dc->clk);
+	}
 
 	if (dc->soc->has_powergate) {
 		if (dc->pipe == 0)