Commit f208f4a4 authored by Jani Nikula's avatar Jani Nikula
Browse files

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: default avatarJani Nikula <jani.nikula@intel.com>
Reviewed-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20230831105144.25923-1-jani.nikula@intel.com
parent 1bc73448

drivers/media/cec/core/cec-adap.c

+5 −0
Original line number Diff line number Diff line
@@ -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)

{

drivers/media/cec/core/cec-notifier.c

+5 −0
Original line number Diff line number Diff line
@@ -195,6 +195,11 @@ void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa) 
}

EXPORT_SYMBOL_GPL(cec_notifier_set_phys_addr);



/*

 * Note: In the drm subsystem, prefer calling (if possible):

 *

 * cec_notifier_set_phys_addr(n, connector->display_info.source_physical_address);

 */

void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n,

					  const struct edid *edid)

{