Merge tag 'drm-misc-next-2017-05-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next

UAPI Changes:
- Return -ENODEV instead of -ENXIO when creating cma fb w/o valid gem (Daniel)
- Add aspect ratio and custom scaling propertis to connector state (Maarten)

Cross-subsystem Changes:
- None

Core Changes:
- Add Laurent as bridge reviewer and Andrzej as bridge maintainer (Archit)
- Maintain new STM driver through -misc (Yannick)
- Misc doc improvements (as is tradition) (Daniel)
- Add driver-private objects to atomic state (Dhinakaran)
- Deprecate preclose hook in modern drivers (use postclose) (Daniel)
- Add hwmode to vblank struct. This fixes mode access in irq context and reduced
  a bunch of boilerplate (Daniel)

Driver Changes:
- vc4: Add out-fence support to vc4 V3D rendering (Eric)
- stm: Add stm32f429 display hw and am-480272h3tmqw-t01h panel support (Yannick)
- vc4: Remove 256MB cma limit from vc4 (Eric)
- dw-hdmi: Disable audio when inactive, instead of always enabled (Romain)
- zte: Add support for VGA to the ZTE driver (Shawn)
- i915: Track DP MST bandwidth and check it in atomic_check (Dhinakaran)
- vgem: Enable gem dmabuf import iface to facilitate ion testing (Laura)
- vc4: Add support for Cygnus (new dt compat string + couple bug fixes) (Eric)
- pl111: Add driver for pl111 CLCD display controller (Eric/Tom)
- vgem: Subclass drm_device instead of standalone platform device (Chris)

Cc: Archit Taneja <architt@codeaurora.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Yannick Fertre <yannick.fertre@st.com>
Cc: Romain Perier <romain.perier@collabora.com>
Cc: Navare, Manasi D <manasi.d.navare@intel.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Tom Cooksey <tom.cooksey@arm.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>

* tag 'drm-misc-next-2017-05-16' of git://anongit.freedesktop.org/git/drm-misc: (72 commits)
  drm: add missing declaration to drm_blend.h
  drm/dp: Wait up all outstanding tx waiters
  drm/dp: Read the tx msg state once after checking for an event
  drm/prime: Forward declare struct device
  drm/vblank: Lock down vblank->hwmode more
  drm/vblank: drop the mode argument from drm_calc_vbltimestamp_from_scanoutpos
  drm/vblank: Add FIXME comments about moving the vblank ts hooks
  drm/vblank: Switch to bool in_vblank_irq in get_vblank_timestamp
  drm/vblank: Switch drm_driver->get_vblank_timestamp to return a bool
  drm/vgem: Convert to a struct drm_device subclass
  gpu: drm: gma500: remove dead code
  drm/sti: Adjust two checks for null pointers in sti_hqvdp_probe()
  drm/sti: Fix typos in a comment line
  drm/sti: Fix a typo in a comment line
  drm/sti: Replace 17 seq_puts() calls by seq_putc()
  drm/sti: Reduce function calls for sequence output at five places
  drm/sti: use seq_puts to display a string
  drm: Nerf the preclose callback for modern drivers
  drm/exynos: Merge pre/postclose hooks
  drm/tegra: switch to postclose
  ...

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 9f847615ac74..5cd61aff7857 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -941,6 +941,10 @@ EXPORT_SYMBOL(drm_mode_create_tv_properties);
  *
  * Called by a driver the first time it's needed, must be attached to desired
  * connectors.
+ *
+ * Atomic drivers should use drm_connector_attach_scaling_mode_property()
+ * instead to correctly assign &drm_connector_state.picture_aspect_ratio
+ * in the atomic state.
  */
 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 {
@@ -961,6 +965,66 @@ int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 
 /**
+ * drm_connector_attach_scaling_mode_property - attach atomic scaling mode property
+ * @connector: connector to attach scaling mode property on.
+ * @scaling_mode_mask: or'ed mask of BIT(%DRM_MODE_SCALE_\*).
+ *
+ * This is used to add support for scaling mode to atomic drivers.
+ * The scaling mode will be set to &drm_connector_state.picture_aspect_ratio
+ * and can be used from &drm_connector_helper_funcs->atomic_check for validation.
+ *
+ * This is the atomic version of drm_mode_create_scaling_mode_property().
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_scaling_mode_property(struct drm_connector *connector,
+                                               u32 scaling_mode_mask)
+{
+        struct drm_device *dev = connector->dev;
+        struct drm_property *scaling_mode_property;
+        int i, j = 0;
+        const unsigned valid_scaling_mode_mask =
+                (1U << ARRAY_SIZE(drm_scaling_mode_enum_list)) - 1;
+
+        if (WARN_ON(hweight32(scaling_mode_mask) < 2 ||
+                    scaling_mode_mask & ~valid_scaling_mode_mask))
+                return -EINVAL;
+
+        scaling_mode_property =
+                drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
+                                    hweight32(scaling_mode_mask));
+
+        if (!scaling_mode_property)
+                return -ENOMEM;
+
+        for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++) {
+                int ret;
+
+                if (!(BIT(i) & scaling_mode_mask))
+                        continue;
+
+                ret = drm_property_add_enum(scaling_mode_property, j++,
+                                            drm_scaling_mode_enum_list[i].type,
+                                            drm_scaling_mode_enum_list[i].name);
+
+                if (ret) {
+                        drm_property_destroy(dev, scaling_mode_property);
+
+                        return ret;
+                }
+        }
+
+        drm_object_attach_property(&connector->base,
+                                   scaling_mode_property, 0);
+
+        connector->scaling_mode_property = scaling_mode_property;
+
+        return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_scaling_mode_property);
+
+/**
  * drm_mode_create_aspect_ratio_property - create aspect ratio property
  * @dev: DRM device
  *