Return-Path: From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Kieran Bingham , Laurent Pinchart , Sasha Levin Subject: [PATCH AUTOSEL 4.18 39/45] drm: rcar-du: Update Gen3 output limitations Date: Sun, 4 Nov 2018 08:52:34 -0500 Message-Id: <20181104135240.88431-39-sashal@kernel.org> In-Reply-To: <20181104135240.88431-1-sashal@kernel.org> References: <20181104135240.88431-1-sashal@kernel.org> List-ID: From: Kieran Bingham [ Upstream commit 2a3181d9cfd6d5aa48f8527708d0c32072072cef ] 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 Signed-off-by: Sasha Levin --- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index f0bc7cc0e913..fb46df56f0c4 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -516,12 +516,22 @@ 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); -- 2.17.1