@@ -27,12 +27,6 @@ config VGASTATE
tristate
default n
-config VIDEO_OUTPUT_CONTROL
- tristate "Lowlevel video output switch controls"
- help
- This framework adds support for low-level control of the video
- output switch.
-
config VIDEOMODE_HELPERS
bool
@@ -172,8 +172,6 @@ obj-$(CONFIG_FB_SIMPLE) += sim
# the test framebuffer is last
obj-$(CONFIG_FB_VIRTUAL) += vfb.o
-#video output switch sysfs driver
-obj-$(CONFIG_VIDEO_OUTPUT_CONTROL) += output.o
obj-$(CONFIG_VIDEOMODE_HELPERS) += display_timing.o videomode.o
ifeq ($(CONFIG_OF),y)
obj-$(CONFIG_VIDEOMODE_HELPERS) += of_display_timing.o of_videomode.o
@@ -1,133 +0,0 @@
-/*
- * output.c - Display Output Switch driver
- *
- * Copyright (C) 2006 Luming Yu <luming.yu@intel.com>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-#include <linux/module.h>
-#include <linux/video_output.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/ctype.h>
-
-
-MODULE_DESCRIPTION("Display Output Switcher Lowlevel Control Abstraction");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Luming Yu <luming.yu@intel.com>");
-
-static ssize_t state_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ssize_t ret_size = 0;
- struct output_device *od = to_output_device(dev);
- if (od->props)
- ret_size = sprintf(buf,"%.8x\n",od->props->get_status(od));
- return ret_size;
-}
-
-static ssize_t state_store(struct device *dev, struct device_attribute *attr,
- const char *buf,size_t count)
-{
- char *endp;
- struct output_device *od = to_output_device(dev);
- int request_state = simple_strtoul(buf,&endp,0);
- size_t size = endp - buf;
-
- if (isspace(*endp))
- size++;
- if (size != count)
- return -EINVAL;
-
- if (od->props) {
- od->request_state = request_state;
- od->props->set_state(od);
- }
- return count;
-}
-static DEVICE_ATTR_RW(state);
-
-static void video_output_release(struct device *dev)
-{
- struct output_device *od = to_output_device(dev);
- kfree(od);
-}
-
-static struct attribute *video_output_attrs[] = {
- &dev_attr_state.attr,
- NULL,
-};
-ATTRIBUTE_GROUPS(video_output);
-
-static struct class video_output_class = {
- .name = "video_output",
- .dev_release = video_output_release,
- .dev_groups = video_output_groups,
-};
-
-struct output_device *video_output_register(const char *name,
- struct device *dev,
- void *devdata,
- struct output_properties *op)
-{
- struct output_device *new_dev;
- int ret_code = 0;
-
- new_dev = kzalloc(sizeof(struct output_device),GFP_KERNEL);
- if (!new_dev) {
- ret_code = -ENOMEM;
- goto error_return;
- }
- new_dev->props = op;
- new_dev->dev.class = &video_output_class;
- new_dev->dev.parent = dev;
- dev_set_name(&new_dev->dev, "%s", name);
- dev_set_drvdata(&new_dev->dev, devdata);
- ret_code = device_register(&new_dev->dev);
- if (ret_code) {
- kfree(new_dev);
- goto error_return;
- }
- return new_dev;
-
-error_return:
- return ERR_PTR(ret_code);
-}
-EXPORT_SYMBOL(video_output_register);
-
-void video_output_unregister(struct output_device *dev)
-{
- if (!dev)
- return;
- device_unregister(&dev->dev);
-}
-EXPORT_SYMBOL(video_output_unregister);
-
-static void __exit video_output_class_exit(void)
-{
- class_unregister(&video_output_class);
-}
-
-static int __init video_output_class_init(void)
-{
- return class_register(&video_output_class);
-}
-
-postcore_initcall(video_output_class_init);
-module_exit(video_output_class_exit);
@@ -1,57 +0,0 @@
-/*
- *
- * Copyright (C) 2006 Luming Yu <luming.yu@intel.com>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-#ifndef _LINUX_VIDEO_OUTPUT_H
-#define _LINUX_VIDEO_OUTPUT_H
-#include <linux/device.h>
-#include <linux/err.h>
-struct output_device;
-struct output_properties {
- int (*set_state)(struct output_device *);
- int (*get_status)(struct output_device *);
-};
-struct output_device {
- int request_state;
- struct output_properties *props;
- struct device dev;
-};
-#define to_output_device(obj) container_of(obj, struct output_device, dev)
-#if defined(CONFIG_VIDEO_OUTPUT_CONTROL) || defined(CONFIG_VIDEO_OUTPUT_CONTROL_MODULE)
-struct output_device *video_output_register(const char *name,
- struct device *dev,
- void *devdata,
- struct output_properties *op);
-void video_output_unregister(struct output_device *dev);
-#else
-static struct output_device *video_output_register(const char *name,
- struct device *dev,
- void *devdata,
- struct output_properties *op)
-{
- return ERR_PTR(-ENODEV);
-}
-static void video_output_unregister(struct output_device *dev)
-{
- return;
-}
-#endif
-#endif
It was only ever used by the ACPI video driver, and that only use case vanished over 3 years ago (see commit 677bd810, "ACPI video: remove output switching control".) So this is dead code and I guess we can remove it now. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <lenb@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> --- drivers/video/Kconfig | 6 - drivers/video/Makefile | 2 drivers/video/output.c | 133 ------------------------------------------- include/linux/video_output.h | 57 ------------------ 4 files changed, 198 deletions(-)