From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/drivers/leds/trigger/ledtrig-timer.c | 48 ++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 42 insertions(+), 6 deletions(-)
diff --git a/kernel/drivers/leds/trigger/ledtrig-timer.c b/kernel/drivers/leds/trigger/ledtrig-timer.c
index 7c14983..b4688d1 100644
--- a/kernel/drivers/leds/trigger/ledtrig-timer.c
+++ b/kernel/drivers/leds/trigger/ledtrig-timer.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* LED Kernel Timer Trigger
*
* Copyright 2005-2006 Openedhand Ltd.
*
* Author: Richard Purdie <rpurdie@openedhand.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/module.h>
@@ -15,6 +12,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/ctype.h>
+#include <linux/slab.h>
#include <linux/leds.h>
static ssize_t led_delay_on_show(struct device *dev,
@@ -30,7 +28,7 @@
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
unsigned long state;
- ssize_t ret = -EINVAL;
+ ssize_t ret;
ret = kstrtoul(buf, 10, &state);
if (ret)
@@ -55,7 +53,7 @@
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
unsigned long state;
- ssize_t ret = -EINVAL;
+ ssize_t ret;
ret = kstrtoul(buf, 10, &state);
if (ret)
@@ -77,8 +75,46 @@
};
ATTRIBUTE_GROUPS(timer_trig);
+static void pattern_init(struct led_classdev *led_cdev)
+{
+ u32 *pattern;
+ unsigned int size = 0;
+
+ pattern = led_get_default_pattern(led_cdev, &size);
+ if (!pattern)
+ return;
+
+ if (size != 2) {
+ dev_warn(led_cdev->dev,
+ "Expected 2 but got %u values for delays pattern\n",
+ size);
+ goto out;
+ }
+
+ led_cdev->blink_delay_on = pattern[0];
+ led_cdev->blink_delay_off = pattern[1];
+ /* led_blink_set() called by caller */
+
+out:
+ kfree(pattern);
+}
+
static int timer_trig_activate(struct led_classdev *led_cdev)
{
+ if (led_cdev->flags & LED_INIT_DEFAULT_TRIGGER) {
+ pattern_init(led_cdev);
+ /*
+ * Mark as initialized even on pattern_init() error because
+ * any consecutive call to it would produce the same error.
+ */
+ led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER;
+ }
+
+ /*
+ * If "set brightness to 0" is pending in workqueue, we don't
+ * want that to be reordered after blink_set()
+ */
+ flush_work(&led_cdev->set_brightness_work);
led_blink_set(led_cdev, &led_cdev->blink_delay_on,
&led_cdev->blink_delay_off);
--
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