diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2017-02-23 16:05:34 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-22 09:17:37 +0100 |
| commit | c1315eea94ea76395918d6f5e9285de82ca023f7 (patch) | |
| tree | 023eb2e5dbb008dcdfd7d2f55c5a21c61299c1cb /drivers/gpu/drm | |
| parent | 7c4b9440c5c3490fb702ff3029f3e54ee9a2be91 (diff) | |
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
[ Upstream commit 7544860733d158e3edbf309f27e79e258c8f66bd ]
The way drm_of_find_possible_crtcs works 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 <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_crtc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c index 4a192210574f..caba0311c86c 100644 --- a/drivers/gpu/drm/sun4i/sun4i_crtc.c +++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c @@ -19,6 +19,7 @@ #include <linux/clk-provider.h> #include <linux/ioport.h> #include <linux/of_address.h> +#include <linux/of_graph.h> #include <linux/of_irq.h> #include <linux/regmap.h> @@ -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; } |