From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/gpio/gpio-grgpio.c | 18 ++----------------
1 files changed, 2 insertions(+), 16 deletions(-)
diff --git a/kernel/drivers/gpio/gpio-grgpio.c b/kernel/drivers/gpio/gpio-grgpio.c
index c1be299..f954359 100644
--- a/kernel/drivers/gpio/gpio-grgpio.c
+++ b/kernel/drivers/gpio/gpio-grgpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Aeroflex Gaisler GRGPIO General Purpose I/O cores.
*
@@ -12,11 +13,6 @@
* See "Documentation/devicetree/bindings/gpio/gpio-grgpio.txt" for
* information on open firmware properties.
*
- * 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.
- *
* Contributors: Andreas Larsson <andreas@gaisler.com>
*/
@@ -30,7 +26,6 @@
#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -336,7 +331,6 @@
void __iomem *regs;
struct gpio_chip *gc;
struct grgpio_priv *priv;
- struct resource *res;
int err;
u32 prop;
s32 *irqmap;
@@ -347,8 +341,7 @@
if (!priv)
return -ENOMEM;
- res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
- regs = devm_ioremap_resource(&ofdev->dev, res);
+ regs = devm_platform_ioremap_resource(ofdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
@@ -417,8 +410,6 @@
* Continue without irq functionality for that
* gpio line
*/
- dev_err(priv->dev,
- "Failed to get irq for offset %d\n", i);
continue;
}
priv->uirqs[lirq->index].uirq = ret;
@@ -444,11 +435,8 @@
static int grgpio_remove(struct platform_device *ofdev)
{
struct grgpio_priv *priv = platform_get_drvdata(ofdev);
- unsigned long flags;
int i;
int ret = 0;
-
- spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
if (priv->domain) {
for (i = 0; i < GRGPIO_MAX_NGPIO; i++) {
@@ -465,8 +453,6 @@
irq_domain_remove(priv->domain);
out:
- spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
-
return ret;
}
--
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