diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2017-02-23 16:05:34 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-03-07 22:15:15 +0100 |
| commit | 7544860733d158e3edbf309f27e79e258c8f66bd (patch) | |
| tree | db6721e721d85c119307c7f011633f83bf209af8 | |
| parent | a6fbffb0301196df7735aa4aacd35610858e471f (diff) | |
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
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>
| -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 7d332fce6770..eec13cea3144 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> @@ -160,5 +161,9 @@ 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; } |