From: Manasi Navare Date: Wed, 11 Dec 2019 21:24:32 +0000 (-0800) Subject: drm: Handle connector tile support only for modes that match tile size X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8c4ebd0d38c36a337606889f7c39ab5a372463a6;p=linux.git drm: Handle connector tile support only for modes that match tile size DRM Fb driver expects multiple CRTCs if it sees connector->has_tile is set, but we need to handle tile support and look for multiple CRTCs only for the modes that match the tile size. The other modes should be able to be displayed without tile support or uisng single CRTC. This patch adds the check to match the tile size with requested mode to handle the tile support. Cc: Ville Syrjälä Cc: Maarten Lankhorst Cc: Jani Nikula Cc: Dave Airlie Signed-off-by: Manasi Navare Reviewed-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20191211212433.18185-1-manasi.d.navare@intel.com --- diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 8ebeccdeed233..06e0b0075993a 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1576,7 +1576,9 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, for (j = 0; j < mode_set->num_connectors; j++) { struct drm_connector *connector = mode_set->connectors[j]; - if (connector->has_tile) { + if (connector->has_tile && + desired_mode->hdisplay == connector->tile_h_size && + desired_mode->vdisplay == connector->tile_v_size) { lasth = (connector->tile_h_loc == (connector->num_h_tile - 1)); lastv = (connector->tile_v_loc == (connector->num_v_tile - 1)); /* cloning to multiple tiles is just crazy-talk, so: */