From b275c8d6fdf7f76de2a65af08799c88a3387d8e2 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 9 May 2022 15:03:18 +0300 Subject: [PATCH] drm/edid: add drm_edid helper for drm_detect_hdmi_monitor() We'll need to propagate drm_edid everywhere. v2: Handle NULL EDID pointer (Ville, CI) Signed-off-by: Jani Nikula Reviewed-by: Ankit Nautiyal Link: https://patchwork.freedesktop.org/patch/msgid/2fbee0d7b544b44ef0866bb154beefac5d260bec.1652097712.git.jani.nikula@intel.com --- drivers/gpu/drm/drm_edid.c | 33 ++++++++++++++++++++------------- 1 file changed, 20 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 4e7811c2eb075..ad5e372f046b6 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5113,18 +5113,7 @@ int drm_av_sync_delay(struct drm_connector *connector, } EXPORT_SYMBOL(drm_av_sync_delay); -/** - * drm_detect_hdmi_monitor - detect whether monitor is HDMI - * @edid: monitor EDID information - * - * Parse the CEA extension according to CEA-861-B. - * - * Drivers that have added the modes parsed from EDID to drm_display_info - * should use &drm_display_info.is_hdmi instead of calling this function. - * - * Return: True if the monitor is HDMI, false if not or unknown. - */ -bool drm_detect_hdmi_monitor(const struct edid *edid) +static bool _drm_detect_hdmi_monitor(const struct drm_edid *drm_edid) { const struct cea_db *db; struct cea_db_iter iter; @@ -5134,7 +5123,7 @@ bool drm_detect_hdmi_monitor(const struct edid *edid) * Because HDMI identifier is in Vendor Specific Block, * search it from all data blocks of CEA extension. */ - cea_db_iter_edid_begin(edid, &iter); + cea_db_iter_edid_begin(drm_edid ? drm_edid->edid : NULL, &iter); cea_db_iter_for_each(db, &iter) { if (cea_db_is_hdmi_vsdb(db)) { hdmi = true; @@ -5145,6 +5134,24 @@ bool drm_detect_hdmi_monitor(const struct edid *edid) return hdmi; } + +/** + * drm_detect_hdmi_monitor - detect whether monitor is HDMI + * @edid: monitor EDID information + * + * Parse the CEA extension according to CEA-861-B. + * + * Drivers that have added the modes parsed from EDID to drm_display_info + * should use &drm_display_info.is_hdmi instead of calling this function. + * + * Return: True if the monitor is HDMI, false if not or unknown. + */ +bool drm_detect_hdmi_monitor(const struct edid *edid) +{ + struct drm_edid drm_edid; + + return _drm_detect_hdmi_monitor(drm_edid_legacy_init(&drm_edid, edid)); +} EXPORT_SYMBOL(drm_detect_hdmi_monitor); /** -- 2.39.5