Applied "drm/edid: Add API to help find connection type" to the asoc tree
broonie at kernel.org
Mon Feb 15 20:25:43 UTC 2016
drm/edid: Add API to help find connection type
has been applied to the asoc tree at
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>From 1aa8ec255370d3e6f60dfa4a8cdd5e1357b1ab78 Mon Sep 17 00:00:00 2001
From: "Subhransu S. Prusty" <subhransu.s.prusty at intel.com>
Date: Fri, 12 Feb 2016 07:46:08 +0530
Subject: [PATCH] drm/edid: Add API to help find connection type
To fill the audio infoframe it is required to identify the
connection type as DP or HDMI. This patch adds an API which
parses ELD and returns the display type connected.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
Reviewed-by: Jani Nikula <jani.nikula at intel.com>
Cc: David Airlie <airlied at linux.ie>
Cc: dri-devel at lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter at intel.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
include/drm/drm_edid.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 2af9769..dec6221 100644
@@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld)
return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4;
+ * drm_eld_get_conn_type - Get device type hdmi/dp connected
+ * @eld: pointer to an ELD memory structure
+ * The caller need to use %DRM_ELD_CONN_TYPE_HDMI or %DRM_ELD_CONN_TYPE_DP to
+ * identify the display type connected.
+static inline u8 drm_eld_get_conn_type(const uint8_t *eld)
+ return eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_CONN_TYPE_MASK;
struct edid *drm_do_get_edid(struct drm_connector *connector,
int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
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