From 931b7336214bec8538babfde5eaa6833e179c804 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 24 Feb 2015 03:51:26 +0200 Subject: drm: rcar-du: Disable fbdev emulation when no connector is present fbdev emulation requires at least one connector, and will fail to initialize if no connector has been successfully instantiated. Disable it in that case and print an informational message instead of failing probe with a confusing fbdev emulation error message. It could be argued that probe should fail when no connector is present, but the DU could still be useful in that case with the to-be-implemented memory write-back support. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'drivers/gpu/drm/rcar-du/rcar_du_kms.c') diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index aebbcde..888df40 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -448,12 +448,17 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) drm_kms_helper_poll_init(dev); - fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_crtc, - dev->mode_config.num_connector); - if (IS_ERR(fbdev)) - return PTR_ERR(fbdev); + if (dev->mode_config.num_connector) { + fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_crtc, + dev->mode_config.num_connector); + if (IS_ERR(fbdev)) + return PTR_ERR(fbdev); - rcdu->fbdev = fbdev; + rcdu->fbdev = fbdev; + } else { + dev_info(rcdu->dev, + "no connector found, disabling fbdev emulation\n"); + } return 0; } -- cgit v1.1