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Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()" 

This reverts commit 52f5eb6094.

Rockchip drm can't work with generic drm_of_component_probe now

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Mark Yao 2015-11-10 16:47:19 +08:00 committed by Dave Airlie
parent 0c545ac481
commit 5bad7d29a7
1 changed files with 75 additions and 6 deletions
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81
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
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@ -19,7 +19,6 @@
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_of.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/module.h>
@ -419,6 +418,29 @@ static int compare_of(struct device *dev, void *data)
return dev->of_node == np;
}
static void rockchip_add_endpoints(struct device *dev,
struct component_match **match,
struct device_node *port)
{
struct device_node *ep, *remote;
for_each_child_of_node(port, ep) {
remote = of_graph_get_remote_port_parent(ep);
if (!remote || !of_device_is_available(remote)) {
of_node_put(remote);
continue;
} else if (!of_device_is_available(remote->parent)) {
dev_warn(dev, "parent device of %s is not available\n",
remote->full_name);
of_node_put(remote);
continue;
}
component_match_add(dev, match, compare_of, remote);
of_node_put(remote);
}
}
static int rockchip_drm_bind(struct device *dev)
{
struct drm_device *drm;
@ -461,14 +483,61 @@ static const struct component_master_ops rockchip_drm_ops = {
static int rockchip_drm_platform_probe(struct platform_device *pdev)
{
int ret = drm_of_component_probe(&pdev->dev, compare_of,
&rockchip_drm_ops);
struct device *dev = &pdev->dev;
struct component_match *match = NULL;
struct device_node *np = dev->of_node;
struct device_node *port;
int i;
/* keep compatibility with old code that was returning -ENODEV */
if (ret == -EINVAL)
if (!np)
return -ENODEV;
/*
* Bind the crtc ports first, so that
* drm_of_find_possible_crtcs called from encoder .bind callbacks
* works as expected.
*/
for (i = 0;; i++) {
port = of_parse_phandle(np, "ports", i);
if (!port)
break;
return ret;
if (!of_device_is_available(port->parent)) {
of_node_put(port);
continue;
}
component_match_add(dev, &match, compare_of, port->parent);
of_node_put(port);
}
if (i == 0) {
dev_err(dev, "missing 'ports' property\n");
return -ENODEV;
}
if (!match) {
dev_err(dev, "No available vop found for display-subsystem.\n");
return -ENODEV;
}
/*
* For each bound crtc, bind the encoders attached to its
* remote endpoint.
*/
for (i = 0;; i++) {
port = of_parse_phandle(np, "ports", i);
if (!port)
break;
if (!of_device_is_available(port->parent)) {
of_node_put(port);
continue;
}
rockchip_add_endpoints(dev, &match, port);
of_node_put(port);
}
return component_master_add_with_match(dev, &rockchip_drm_ops, match);
}
static int rockchip_drm_platform_remove(struct platform_device *pdev)