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authorMarkus Schneider-Pargmann <msp@baylibre.com>2022-09-01 12:41:41 +0800
committerDmitry Osipenko <dmitry.osipenko@collabora.com>2022-09-04 15:31:59 +0300
commitf89aa0b6db18dea3c3c8ef266cc6c9fd8dff2d72 (patch)
treee8e6a27c1647faa6d72964d2dd51f5c868e3b88f /include/drm
parenta2ce58e8f9e4cef389a04077d052f8135f380c5c (diff)
downloadlwn-f89aa0b6db18dea3c3c8ef266cc6c9fd8dff2d72.tar.gz
lwn-f89aa0b6db18dea3c3c8ef266cc6c9fd8dff2d72.zip
video/hdmi: Add audio_infoframe packing for DP
Similar to HDMI, DP uses audio infoframes as well which are structured very similar to the HDMI ones. This patch adds a helper function to pack the HDMI audio infoframe for DP, called hdmi_audio_infoframe_pack_for_dp(). hdmi_audio_infoframe_pack_only() is split into two parts. One of them packs the payload only and can be used for HDMI and DP. Also constify the frame parameter in hdmi_audio_infoframe_check() as it is passed to hdmi_audio_infoframe_check_only() which expects a const. Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/display/drm_dp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 9e3aff7e68bb..6c0871164771 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -1536,6 +1536,8 @@ enum drm_dp_phy {
#define DP_SDP_VSC_EXT_CEA 0x21 /* DP 1.4 */
/* 0x80+ CEA-861 infoframe types */
+#define DP_SDP_AUDIO_INFOFRAME_HB2 0x1b
+
/**
* struct dp_sdp_header - DP secondary data packet header
* @HB0: Secondary Data Packet ID