From mboxrd@z Thu Jan 1 00:00:00 1970 From: wens@csie.org (Chen-Yu Tsai) Date: Thu, 23 Feb 2017 16:05:34 +0800 Subject: [PATCH 02/11] drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node In-Reply-To: <20170223080543.6659-1-wens@csie.org> References: <20170223080543.6659-1-wens@csie.org> Message-ID: <20170223080543.6659-3-wens@csie.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The way drm_of_find_possible_crtcs is it tries to match the remote-endpoint of the given node's various endpoints to all the crtc's .port field. Thus we need to set drm_crtc.port to the output port node of the underlying TCON. Signed-off-by: Chen-Yu Tsai --- drivers/gpu/drm/sun4i/sun4i_crtc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c index 4e2e89c3104f..de6f7da69746 100644 --- a/drivers/gpu/drm/sun4i/sun4i_crtc.c +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -136,5 +137,9 @@ struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm) drm_crtc_helper_add(&scrtc->crtc, &sun4i_crtc_helper_funcs); + /* Set crtc.port to output port node of the tcon */ + scrtc->crtc.port = of_graph_get_port_by_id(drv->tcon->dev->of_node, + 1); + return scrtc; } -- 2.11.0