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authorJani Nikula <jani.nikula@intel.com>2023-08-31 13:51:44 +0300
committerJani Nikula <jani.nikula@intel.com>2023-09-01 11:59:37 +0300
commitf208f4a49a46cc04f51b0c335d4b6390fbfcd1b8 (patch)
treedc6f49cfeb2307962a41b677d6beb959832238ff /drivers/media/cec/core/cec-adap.c
parent1bc7344835524060f958e1879f8e427e54031098 (diff)
media: cec: core: add note about *_from_edid() function usage in drm
In the drm subsystem, the source physical address is, in most cases, available without having to parse the EDID again. Add notes about preferring to use the pre-parsed address instead. Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: linux-media@vger.kernel.org Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Link: https://patchwork.freedesktop.org/patch/msgid/20230831105144.25923-1-jani.nikula@intel.com
Diffstat (limited to 'drivers/media/cec/core/cec-adap.c')
-rw-r--r--drivers/media/cec/core/cec-adap.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/cec/core/cec-adap.c b/drivers/media/cec/core/cec-adap.c
index 241b1621b197..1109af525c35 100644
--- a/drivers/media/cec/core/cec-adap.c
+++ b/drivers/media/cec/core/cec-adap.c
@@ -1688,6 +1688,11 @@ void cec_s_phys_addr(struct cec_adapter *adap, u16 phys_addr, bool block)
}
EXPORT_SYMBOL_GPL(cec_s_phys_addr);
+/*
+ * Note: In the drm subsystem, prefer calling (if possible):
+ *
+ * cec_s_phys_addr(adap, connector->display_info.source_physical_address, false);
+ */
void cec_s_phys_addr_from_edid(struct cec_adapter *adap,
const struct edid *edid)
{