From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/power/reset/gpio-poweroff.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/kernel/drivers/power/reset/gpio-poweroff.c b/kernel/drivers/power/reset/gpio-poweroff.c
index 694ae3f..1c5af2f 100644
--- a/kernel/drivers/power/reset/gpio-poweroff.c
+++ b/kernel/drivers/power/reset/gpio-poweroff.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Toggles a GPIO pin to power down a device
*
@@ -5,11 +6,6 @@
* Andrew Lunn <andrew@lunn.ch>
*
* Copyright (C) 2012 Jamie Lentin
- *
- * 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/kernel.h>
#include <linux/init.h>
@@ -26,6 +22,8 @@
*/
static struct gpio_desc *reset_gpio;
static u32 timeout = DEFAULT_TIMEOUT_MS;
+static u32 active_delay = 100;
+static u32 inactive_delay = 100;
static void gpio_poweroff_do_poweroff(void)
{
@@ -33,10 +31,11 @@
/* drive it active, also inactive->active edge */
gpiod_direction_output(reset_gpio, 1);
- mdelay(100);
+ mdelay(active_delay);
+
/* drive inactive, also active->inactive edge */
gpiod_set_value_cansleep(reset_gpio, 0);
- mdelay(100);
+ mdelay(inactive_delay);
/* drive it active, also inactive->active edge */
gpiod_set_value_cansleep(reset_gpio, 1);
@@ -52,15 +51,13 @@
bool input = false;
enum gpiod_flags flags;
-#ifndef CONFIG_ARCH_ROCKCHIP
/* If a pm_power_off function has already been added, leave it alone */
if (pm_power_off != NULL) {
dev_err(&pdev->dev,
- "%s: pm_power_off function already registered",
+ "%s: pm_power_off function already registered\n",
__func__);
return -EBUSY;
}
-#endif
input = device_property_read_bool(&pdev->dev, "input");
if (input)
@@ -68,6 +65,9 @@
else
flags = GPIOD_OUT_LOW;
+ device_property_read_u32(&pdev->dev, "active-delay-ms", &active_delay);
+ device_property_read_u32(&pdev->dev, "inactive-delay-ms",
+ &inactive_delay);
device_property_read_u32(&pdev->dev, "timeout-ms", &timeout);
reset_gpio = devm_gpiod_get(&pdev->dev, NULL, flags);
--
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