target/linux/bcm27xx/patches-5.10/950-0530-drm-connector-Add-a-helper-to-attach-the-colorspace-.patch

   1 From a7f87202ec94410eabff8df2f4fced0141794a9a Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Fri, 9 Apr 2021 17:07:32 +0200
   4 Subject: [PATCH] drm/connector: Add a helper to attach the colorspace
   5  property
   6
   7 The intel driver uses the same logic to attach the Colorspace property
   8 in multiple places and we'll need it in vc4 too. Let's move that common
   9 code in a helper.
  10
  11 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  12 ---
  13  drivers/gpu/drm/drm_connector.c               | 20 +++++++++++++++++++
  14  .../gpu/drm/i915/display/intel_connector.c    |  3 +--
  15  include/drm/drm_connector.h                   |  1 +
  16  3 files changed, 22 insertions(+), 2 deletions(-)
  17
  18 --- a/drivers/gpu/drm/drm_connector.c
  19 +++ b/drivers/gpu/drm/drm_connector.c
  20 @@ -2165,6 +2165,26 @@ int drm_connector_attach_hdr_output_meta
  21  EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
  22
  23  /**
  24 + * drm_connector_attach_colorspace_property - attach "Colorspace" property
  25 + * @connector: connector to attach the property on.
  26 + *
  27 + * This is used to allow the userspace to signal the output colorspace
  28 + * to the driver.
  29 + *
  30 + * Returns:
  31 + * Zero on success, negative errno on failure.
  32 + */
  33 +int drm_connector_attach_colorspace_property(struct drm_connector *connector)
  34 +{
  35 +       struct drm_property *prop = connector->colorspace_property;
  36 +
  37 +       drm_object_attach_property(&connector->base, prop, DRM_MODE_COLORIMETRY_DEFAULT);
  38 +
  39 +       return 0;
  40 +}
  41 +EXPORT_SYMBOL(drm_connector_attach_colorspace_property);
  42 +
  43 +/**
  44   * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
  45   * @old_state: old connector state to compare
  46   * @new_state: new connector state to compare
  47 --- a/drivers/gpu/drm/i915/display/intel_connector.c
  48 +++ b/drivers/gpu/drm/i915/display/intel_connector.c
  49 @@ -297,6 +297,5 @@ intel_attach_colorspace_property(struct
  50                 return;
  51         }
  52
  53 -       drm_object_attach_property(&connector->base,
  54 -                                  connector->colorspace_property, 0);
  55 +       drm_connector_attach_colorspace_property(connector);
  56  }
  57 --- a/include/drm/drm_connector.h
  58 +++ b/include/drm/drm_connector.h
  59 @@ -1622,6 +1622,7 @@ int drm_connector_attach_scaling_mode_pr
  60                                                u32 scaling_mode_mask);
  61  int drm_connector_attach_vrr_capable_property(
  62                 struct drm_connector *connector);
  63 +int drm_connector_attach_colorspace_property(struct drm_connector *connector);
  64  int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
  65  bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
  66                                              struct drm_connector_state *new_state);