From 223293205a7265c8b02882461ba8996650048ade Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 06:33:33 +0000
Subject: [PATCH] audio ok
---
kernel/drivers/video/fbdev/core/fbsysfs.c | 38 +++++++++++++++-----------------------
1 files changed, 15 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/video/fbdev/core/fbsysfs.c b/kernel/drivers/video/fbdev/core/fbsysfs.c
index e31a182..65dae05 100644
--- a/kernel/drivers/video/fbdev/core/fbsysfs.c
+++ b/kernel/drivers/video/fbdev/core/fbsysfs.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* fbsysfs.c - framebuffer device class and attributes
*
* Copyright (c) 2004 James Simmons <jsimmons@infradead.org>
- *
- * 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.
*/
/*
@@ -18,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/fb.h>
+#include <linux/fbcon.h>
#include <linux/console.h>
#include <linux/module.h>
@@ -60,7 +57,7 @@
info->device = dev;
info->fbcon_rotate_hint = -1;
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
mutex_init(&info->bl_curve_mutex);
#endif
@@ -94,9 +91,9 @@
var->activate |= FB_ACTIVATE_FORCE;
console_lock();
- fb_info->flags |= FBINFO_MISC_USEREVENT;
err = fb_set_var(fb_info, var);
- fb_info->flags &= ~FBINFO_MISC_USEREVENT;
+ if (!err)
+ fbcon_update_vcs(fb_info, var->activate & FB_ACTIVATE_ALL);
console_unlock();
if (err)
return err;
@@ -179,10 +176,7 @@
return -EINVAL;
console_lock();
- if (!lock_fb_info(fb_info)) {
- console_unlock();
- return -ENODEV;
- }
+ lock_fb_info(fb_info);
list_splice(&fb_info->modelist, &old_list);
fb_videomode_to_modelist((const struct fb_videomode *)buf, i,
@@ -308,12 +302,13 @@
{
struct fb_info *fb_info = dev_get_drvdata(device);
char *last = NULL;
- int err;
+ int err, arg;
+ arg = simple_strtoul(buf, &last, 0);
console_lock();
- fb_info->flags |= FBINFO_MISC_USEREVENT;
- err = fb_blank(fb_info, simple_strtoul(buf, &last, 0));
- fb_info->flags &= ~FBINFO_MISC_USEREVENT;
+ err = fb_blank(fb_info, arg);
+ /* might again call into fb_blank */
+ fbcon_fb_blanked(fb_info, arg);
console_unlock();
if (err < 0)
return err;
@@ -409,10 +404,7 @@
state = simple_strtoul(buf, &last, 0);
console_lock();
- if (!lock_fb_info(fb_info)) {
- console_unlock();
- return -ENODEV;
- }
+ lock_fb_info(fb_info);
fb_set_suspend(fb_info, (int)state);
@@ -429,7 +421,7 @@
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state);
}
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
static ssize_t store_bl_curve(struct device *device,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -510,7 +502,7 @@
__ATTR(stride, S_IRUGO, show_stride, NULL),
__ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
__ATTR(state, S_IRUGO|S_IWUSR, show_fbstate, store_fbstate),
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
__ATTR(bl_curve, S_IRUGO|S_IWUSR, show_bl_curve, store_bl_curve),
#endif
};
@@ -551,7 +543,7 @@
}
}
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
/* This function generates a linear backlight curve
*
* 0: off
--
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