From: Kieran Bingham Date: Fri, 31 Aug 2018 18:12:57 +0000 (+0100) Subject: drm: rcar-du: Update Gen3 output limitations X-Git-Tag: v5.15~7648^2~28^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2a3181d9cfd6d5aa48f8527708d0c32072072cef;p=platform%2Fkernel%2Flinux-starfive.git drm: rcar-du: Update Gen3 output limitations The R-Car Gen3 DU utilises the VSP1 hardware for memory access. The limits on the RPF and WPF in this pipeline are 8190x8190. Update the supported maximum sizes accordingly. Signed-off-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index ed7fa32..7c7aff8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -512,12 +512,22 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) dev->mode_config.min_width = 0; dev->mode_config.min_height = 0; - dev->mode_config.max_width = 4095; - dev->mode_config.max_height = 2047; dev->mode_config.normalize_zpos = true; dev->mode_config.funcs = &rcar_du_mode_config_funcs; dev->mode_config.helper_private = &rcar_du_mode_config_helper; + if (rcdu->info->gen < 3) { + dev->mode_config.max_width = 4095; + dev->mode_config.max_height = 2047; + } else { + /* + * The Gen3 DU uses the VSP1 for memory access, and is limited + * to frame sizes of 8190x8190. + */ + dev->mode_config.max_width = 8190; + dev->mode_config.max_height = 8190; + } + rcdu->num_crtcs = hweight8(rcdu->info->channels_mask); ret = rcar_du_properties_init(rcdu);