target/linux/layerscape/patches-5.4/805-display-0026-drm-imx-hdp-add-colorspace-property.patch

   1 From 55ebf12c54a53319d6a890eb499b68565242c3c4 Mon Sep 17 00:00:00 2001
   2 From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
   3 Date: Thu, 7 Nov 2019 15:09:11 +0200
   4 Subject: [PATCH] drm/imx/hdp: add colorspace property
   5
   6 iMX8MQ has the ability to adjust the DCSS output pipe gamut and nonlinearity
   7 depending on the HDMI connector capability. Userspace can explicitly set this
   8 property if it decides, based on EDID parsing, that the sink supports REC.2020
   9 and it wants to switch when it plays HDR10 content.
  10
  11 Otherwise, the kernel will use the default settings specified in the HDMI
  12 specifications.
  13
  14 Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
  15 ---
  16  drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 8 +++++++-
  17  1 file changed, 7 insertions(+), 1 deletion(-)
  18
  19 --- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
  20 +++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
  21 @@ -356,11 +356,17 @@ static int cdns_hdmi_bridge_attach(struc
  22         drm_connector_init(bridge->dev, connector, &cdns_hdmi_connector_funcs,
  23                            DRM_MODE_CONNECTOR_HDMIA);
  24
  25 -       if (!strncmp("imx8mq-hdmi", mhdp->plat_data->plat_name, 11))
  26 +       if (!strncmp("imx8mq-hdmi", mhdp->plat_data->plat_name, 11)) {
  27                 drm_object_attach_property(&connector->base,
  28                                            config->hdr_output_metadata_property,
  29                                            0);
  30
  31 +               if (!drm_mode_create_colorspace_property(connector))
  32 +                       drm_object_attach_property(&connector->base,
  33 +                                               connector->colorspace_property,
  34 +                                               0);
  35 +       }
  36 +
  37         drm_connector_attach_encoder(connector, encoder);
  38
  39         return 0;