From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> ADD HLG EOTF to the list of EOTF transfer functions supported. Hybrid Log-Gamma (HLG) is a high dynamic range (HDR) standard. HLG defines a nonlinear transfer function in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve. v2: Rebase v3: Fixed a warning message v4: Addressed Shashank's review comments v5: Addressed Jonas Karlman's review comment and dropped the i915 tag from header. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx> Reviewed-by: Shashank Sharma <shashank.sharma@xxxxxxxxx> --- drivers/gpu/drm/drm_edid.c | 3 ++- include/linux/hdmi.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 73b7905..bc46041 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -3851,7 +3851,8 @@ static uint8_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 uint8_t hdr_metadata_type(const u8 *edid_ext) diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h index 7edafcf..3d7f10f 100644 --- a/include/linux/hdmi.h +++ b/include/linux/hdmi.h @@ -161,6 +161,7 @@ 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 { -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx