5.4-stable review patch. If anyone has any objections, please let me know.
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From: feijuan.li feijuan.li@samsung.com
commit 6692dbc15e5ed40a3aa037aced65d7b8826c58cd upstream.
When DP connected to a device with HDR capability, the hdr structure was filled.Then connected to another sink device without hdr capability, but the hdr info still exist.
Fixes: e85959d6cbe0 ("drm: Parse HDR metadata info from EDID") Cc: stable@vger.kernel.org # v5.3+ Signed-off-by: "feijuan.li" feijuan.li@samsung.com Reviewed-by: Jani Nikula jani.nikula@intel.com Link: https://lore.kernel.org/r/20250514063511.4151780-1-feijuan.li@samsung.com Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/drm_edid.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4629,6 +4629,7 @@ drm_reset_display_info(struct drm_connec info->has_hdmi_infoframe = false; info->rgb_quant_range_selectable = false; memset(&info->hdmi, 0, sizeof(info->hdmi)); + memset(&connector->hdr_sink_metadata, 0, sizeof(connector->hdr_sink_metadata));
info->non_desktop = 0; }