mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
43fc884efe
../drivers/gpu/drm/drm_vm.c:405:6: warning: symbol 'drm_vm_open_locked' was not declared. Should it be static? ../drivers/gpu/drm/drm_vm.c:431:6: warning: symbol 'drm_vm_close_locked' was not declared. Should it be static? ../drivers/gpu/drm/drm_vm.c:681:5: warning: symbol 'drm_vma_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_pci.c:146:5: warning: symbol 'drm_pci_set_unique' was not declared. Should it be static? ../drivers/gpu/drm/drm_pci.c:216:5: warning: symbol 'drm_irq_by_busid' was not declared. Should it be static? ../drivers/gpu/drm/drm_info.c:47:5: warning: symbol 'drm_name_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_info.c:72:5: warning: symbol 'drm_vm_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_info.c:116:5: warning: symbol 'drm_bufs_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_info.c:159:5: warning: symbol 'drm_clients_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_info.c:209:5: warning: symbol 'drm_gem_name_info' was not declared. Should it be static? ../drivers/gpu/drm/drm_ioc32.c:1019:20: warning: symbol 'drm_compat_ioctls' was not declared. Should it be static? ../drivers/gpu/drm/drm_bridge.c:52:12: warning: function 'drm_bridge_attach' with external linkage has definition Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2014 Samsung Electronics Co., Ltd
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sub license,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/module.h>
|
|
|
|
#include <drm/drm_crtc.h>
|
|
|
|
#include "drm/drmP.h"
|
|
|
|
static DEFINE_MUTEX(bridge_lock);
|
|
static LIST_HEAD(bridge_list);
|
|
|
|
int drm_bridge_add(struct drm_bridge *bridge)
|
|
{
|
|
mutex_lock(&bridge_lock);
|
|
list_add_tail(&bridge->list, &bridge_list);
|
|
mutex_unlock(&bridge_lock);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_bridge_add);
|
|
|
|
void drm_bridge_remove(struct drm_bridge *bridge)
|
|
{
|
|
mutex_lock(&bridge_lock);
|
|
list_del_init(&bridge->list);
|
|
mutex_unlock(&bridge_lock);
|
|
}
|
|
EXPORT_SYMBOL(drm_bridge_remove);
|
|
|
|
int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge)
|
|
{
|
|
if (!dev || !bridge)
|
|
return -EINVAL;
|
|
|
|
if (bridge->dev)
|
|
return -EBUSY;
|
|
|
|
bridge->dev = dev;
|
|
|
|
if (bridge->funcs->attach)
|
|
return bridge->funcs->attach(bridge);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(drm_bridge_attach);
|
|
|
|
#ifdef CONFIG_OF
|
|
struct drm_bridge *of_drm_find_bridge(struct device_node *np)
|
|
{
|
|
struct drm_bridge *bridge;
|
|
|
|
mutex_lock(&bridge_lock);
|
|
|
|
list_for_each_entry(bridge, &bridge_list, list) {
|
|
if (bridge->of_node == np) {
|
|
mutex_unlock(&bridge_lock);
|
|
return bridge;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&bridge_lock);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(of_drm_find_bridge);
|
|
#endif
|
|
|
|
MODULE_AUTHOR("Ajay Kumar <ajaykumar.rs@samsung.com>");
|
|
MODULE_DESCRIPTION("DRM bridge infrastructure");
|
|
MODULE_LICENSE("GPL and additional rights");
|