diff options
| author | Rob Herring <robh@kernel.org> | 2017-03-22 16:26:06 +0300 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-04-07 00:00:27 +0300 |
| commit | 86418f90a4c1a0073db65d8a1e2bf94421117a60 (patch) | |
| tree | a82b9534e5f5c89ceeaa93abaad71da000c7f8d3 /drivers/gpu/drm/tilcdc/tilcdc_crtc.c | |
| parent | 1f2db3034c9f16ed918e34809167546f21d0fcb4 (diff) | |
| download | linux-86418f90a4c1a0073db65d8a1e2bf94421117a60.tar.xz | |
drm: convert drivers to use of_graph_get_remote_node
Convert drivers to use the new of_graph_get_remote_node() helper
instead of parsing the endpoint node and then getting the remote device
node. Now drivers can just specify the device node and which
port/endpoint and get back the connected remote device node. The details
of the graph binding are nicely abstracted into the core OF graph code.
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>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Liviu Dudau <liviu.dudau@arm.com>
Tested-by: Eric Anholt <eric@anholt.net>
Tested-by: Jyri Sarha <jsarha@ti.com>
Tested by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index afd2a7b2aff7..d524ed0d5146 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -23,6 +23,7 @@ #include <linux/workqueue.h> #include <linux/completion.h> #include <linux/dma-mapping.h> +#include <linux/of_graph.h> #include "tilcdc_drv.h" #include "tilcdc_regs.h" @@ -1035,16 +1036,7 @@ int tilcdc_crtc_create(struct drm_device *dev) drm_crtc_helper_add(crtc, &tilcdc_crtc_helper_funcs); if (priv->is_componentized) { - struct device_node *ports = - of_get_child_by_name(dev->dev->of_node, "ports"); - - if (ports) { - crtc->port = of_get_child_by_name(ports, "port"); - of_node_put(ports); - } else { - crtc->port = - of_get_child_by_name(dev->dev->of_node, "port"); - } + crtc->port = of_graph_get_port_by_id(dev->dev->of_node, 0); if (!crtc->port) { /* This should never happen */ dev_err(dev->dev, "Port node not found in %s\n", dev->dev->of_node->full_name); |