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authorRob Herring <robh@kernel.org>2017-03-29 13:55:46 -0500
committerSean Paul <seanpaul@chromium.org>2017-04-06 17:00:27 -0400
commitebc9446135671b89c2397f438af45d9cef0d1368 (patch)
treefa1bf0c176711e21ccec628699736eab39d4c552 /drivers/gpu/drm/mxsfb
parent86418f90a4c1a0073db65d8a1e2bf94421117a60 (diff)
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drm: convert drivers to use drm_of_find_panel_or_bridge
Similar to the previous commit, convert drivers open coding OF graph parsing to use drm_of_find_panel_or_bridge instead. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Archit Taneja <architt@codeaurora.org> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [seanpaul dropped rockchip changes since they're now obsolete] Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/mxsfb')
-rw-r--r--drivers/gpu/drm/mxsfb/mxsfb_out.c40
1 files changed, 6 insertions, 34 deletions
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_out.c b/drivers/gpu/drm/mxsfb/mxsfb_out.c
index b8e81422d4e2..f7d729aa09bd 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_out.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_out.c
@@ -19,6 +19,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_of.h>
#include <drm/drm_panel.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_simple_kms_helper.h>
@@ -82,20 +83,15 @@ static const struct drm_connector_funcs mxsfb_panel_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static int mxsfb_attach_endpoint(struct drm_device *drm,
- const struct of_endpoint *ep)
+int mxsfb_create_output(struct drm_device *drm)
{
struct mxsfb_drm_private *mxsfb = drm->dev_private;
- struct device_node *np;
struct drm_panel *panel;
- int ret = -EPROBE_DEFER;
-
- np = of_graph_get_remote_port_parent(ep->local_node);
- panel = of_drm_find_panel(np);
- of_node_put(np);
+ int ret;
- if (!panel)
- return -EPROBE_DEFER;
+ ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel, NULL);
+ if (ret)
+ return ret;
mxsfb->connector.dpms = DRM_MODE_DPMS_OFF;
mxsfb->connector.polled = 0;
@@ -109,27 +105,3 @@ static int mxsfb_attach_endpoint(struct drm_device *drm,
return ret;
}
-
-int mxsfb_create_output(struct drm_device *drm)
-{
- struct mxsfb_drm_private *mxsfb = drm->dev_private;
- struct device_node *ep_np = NULL;
- struct of_endpoint ep;
- int ret;
-
- for_each_endpoint_of_node(drm->dev->of_node, ep_np) {
- ret = of_graph_parse_endpoint(ep_np, &ep);
- if (!ret)
- ret = mxsfb_attach_endpoint(drm, &ep);
-
- if (ret) {
- of_node_put(ep_np);
- return ret;
- }
- }
-
- if (!mxsfb->panel)
- return -EPROBE_DEFER;
-
- return 0;
-}