Re: [v2 11/14] drm/i915: Add HLG EOTF

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Regards

Shashank


On 12/12/2018 2:08 AM, Uma Shankar wrote:
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

ADD HLG EOTF to the list of EOTF transfer functions
supported.
Would it be possible to add some details about HLG ?

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
  drivers/gpu/drm/drm_edid.c | 4 ++--
  include/linux/hdmi.h       | 1 +
  2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 5a7fc9b..fa86494 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3857,8 +3857,8 @@ static uint16_t eotf_supported(const u8 *edid_ext)
  	return edid_ext[2] &
  		(BIT(HDMI_EOTF_TRADITIONAL_GAMMA_SDR) |
  		 BIT(HDMI_EOTF_TRADITIONAL_GAMMA_HDR) |
-		 BIT(HDMI_EOTF_SMPTE_ST2084));
-
+		 BIT(HDMI_EOTF_SMPTE_ST2084) |
+		 BIT(HDMI_EOTF_BT_2100_HLG));
  }
static uint16_t hdr_metadata_type(const u8 *edid_ext)
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index ce00e1e..b5346c3 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -146,6 +146,7 @@ enum hdmi_eotf {
  	HDMI_EOTF_TRADITIONAL_GAMMA_SDR,
  	HDMI_EOTF_TRADITIONAL_GAMMA_HDR,
  	HDMI_EOTF_SMPTE_ST2084,
+	HDMI_EOTF_BT_2100_HLG,
  };
struct hdmi_avi_infoframe {

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