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authorHelge Deller <deller@gmx.de>2023-10-17 22:33:30 +0200
committerHelge Deller <deller@gmx.de>2023-10-30 14:54:40 +0100
commitfe0a9b8b22248eb74983ae37af9347c1c068012c (patch)
tree9bab8189dd33b805fdf229af1c4eb512fa9ff77c /drivers/parisc
parentd0c219472980d15f5cbc5c8aec736848bda3f235 (diff)
downloadlwn-fe0a9b8b22248eb74983ae37af9347c1c068012c.tar.gz
lwn-fe0a9b8b22248eb74983ae37af9347c1c068012c.zip
parisc/power: Trivial whitespace cleanups and license update
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'drivers/parisc')
-rw-r--r--drivers/parisc/power.c51
1 files changed, 13 insertions, 38 deletions
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 6ee0717e34ec..539d8920c202 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -1,38 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
- * linux/drivers/parisc/power.c
- * HP PARISC soft power switch support driver
- *
- * Copyright (c) 2001-2007 Helge Deller <deller@gmx.de>
- * All rights reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL").
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * HP PARISC soft power switch driver
*
+ * Copyright (c) 2001-2023 Helge Deller <deller@gmx.de>
*
* HINT:
* Support of the soft power switch button may be enabled or disabled at
* runtime through the "/proc/sys/kernel/power" procfs entry.
- */
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -62,12 +37,12 @@
#define MFCPU_X(rDiagReg, t_ch, t_th, code) \
(DIAG_CODE(code) + ((rDiagReg)<<21) + ((t_ch)<<16) + ((t_th)<<0) )
-
+
#define MTCPU(dr, gr) MFCPU_X(dr, gr, 0, 0x12) /* move value of gr to dr[dr] */
#define MFCPU_C(dr, gr) MFCPU_X(dr, gr, 0, 0x30) /* for dr0 and dr8 only ! */
#define MFCPU_T(dr, gr) MFCPU_X(dr, 0, gr, 0xa0) /* all dr except dr0 and dr8 */
-
-#define __getDIAG(dr) ( { \
+
+#define __getDIAG(dr) ( { \
register unsigned long __res asm("r28");\
__asm__ __volatile__ ( \
".word %1" : "=&r" (__res) : "i" (MFCPU_T(dr,28) ) \
@@ -85,7 +60,7 @@ static void process_shutdown(void)
printk(KERN_ALERT KTHREAD_NAME ": Shutdown requested...\n");
shutdown_timer++;
-
+
/* wait until the button was pressed for 1 second */
if (shutdown_timer == (POWERSWITCH_DOWN_SEC*POWERSWITCH_POLL_PER_SEC)) {
static const char msg[] = "Shutting down...";
@@ -135,7 +110,7 @@ static int kpowerswd(void *param)
button_not_pressed = (gsc_readl(soft_power_reg) & 0x1);
} else {
/*
- * On gecko style machines (e.g. 712/xx and 715/xx)
+ * On gecko style machines (e.g. 712/xx and 715/xx)
* the power switch status is stored in Bit 0 ("the highest bit")
* of CPU diagnose register 25.
* Warning: Some machines never reset the DIAG flag, even if
@@ -161,7 +136,7 @@ static int kpowerswd(void *param)
/*
- * powerfail interruption handler (irq IRQ_FROM_REGION(CPU_IRQ_REGION)+2)
+ * powerfail interruption handler (irq IRQ_FROM_REGION(CPU_IRQ_REGION)+2)
*/
#if 0
static void powerfail_interrupt(int code, void *x)
@@ -222,14 +197,14 @@ static int __init power_init(void)
ret = pdc_soft_power_button(1);
if (ret != PDC_OK)
soft_power_reg = -1UL;
-
+
switch (soft_power_reg) {
case 0: printk(KERN_INFO DRIVER_NAME ": Gecko-style soft power switch enabled.\n");
break;
-
+
case -1UL: printk(KERN_INFO DRIVER_NAME ": Soft power switch support not available.\n");
return -ENODEV;
-
+
default: printk(KERN_INFO DRIVER_NAME ": Soft power switch at 0x%08lx enabled.\n",
soft_power_reg);
}