From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/arch/powerpc/platforms/powermac/feature.c | 72 +++++++++++++-----------------------
1 files changed, 26 insertions(+), 46 deletions(-)
diff --git a/kernel/arch/powerpc/platforms/powermac/feature.c b/kernel/arch/powerpc/platforms/powermac/feature.c
index 4eb8cb3..5c77b9a 100644
--- a/kernel/arch/powerpc/platforms/powermac/feature.c
+++ b/kernel/arch/powerpc/platforms/powermac/feature.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
* Ben. Herrenschmidt (benh@kernel.crashing.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.
*
* TODO:
*
@@ -14,7 +10,6 @@
* power)
* - Refcount some clocks (see darwin)
* - Split split split...
- *
*/
#include <linux/types.h>
#include <linux/init.h>
@@ -51,7 +46,7 @@
#define DBG(fmt...)
#endif
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
extern int powersave_lowspeed;
#endif
@@ -173,9 +168,9 @@
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
- if (!strcmp(node->name, "ch-a"))
+ if (of_node_name_eq(node, "ch-a"))
chan_mask = MACIO_FLAG_SCCA_ON;
- else if (!strcmp(node->name, "ch-b"))
+ else if (of_node_name_eq(node, "ch-b"))
chan_mask = MACIO_FLAG_SCCB_ON;
else
return -ENODEV;
@@ -610,9 +605,9 @@
macio = macio_find(node, 0);
if (!macio)
return -ENODEV;
- if (!strcmp(node->name, "ch-a"))
+ if (of_node_name_eq(node, "ch-a"))
chan_mask = MACIO_FLAG_SCCA_ON;
- else if (!strcmp(node->name, "ch-b"))
+ else if (of_node_name_eq(node, "ch-b"))
chan_mask = MACIO_FLAG_SCCB_ON;
else
return -ENODEV;
@@ -1049,7 +1044,6 @@
unsigned long flags;
struct macio_chip *macio;
struct device_node *np;
- struct device_node *cpus;
const int dflt_reset_lines[] = { KL_GPIO_RESET_CPU0,
KL_GPIO_RESET_CPU1,
KL_GPIO_RESET_CPU2,
@@ -1059,10 +1053,7 @@
if (macio->type != macio_keylargo)
return -ENODEV;
- cpus = of_find_node_by_path("/cpus");
- if (cpus == NULL)
- return -ENODEV;
- for (np = cpus->child; np != NULL; np = np->sibling) {
+ for_each_of_cpu_node(np) {
const u32 *num = of_get_property(np, "reg", NULL);
const u32 *rst = of_get_property(np, "soft-reset", NULL);
if (num == NULL || rst == NULL)
@@ -1072,7 +1063,6 @@
break;
}
}
- of_node_put(cpus);
if (np == NULL || reset_io == 0)
reset_io = dflt_reset_lines[param];
@@ -1397,8 +1387,7 @@
if (parent == NULL)
return 0;
- is_u3 = strcmp(parent->name, "u3") == 0 ||
- strcmp(parent->name, "u4") == 0;
+ is_u3 = of_node_name_eq(parent, "u3") || of_node_name_eq(parent, "u4");
of_node_put(parent);
if (!is_u3)
return 0;
@@ -1476,6 +1465,7 @@
case 2:
if (macio->type == macio_shasta)
break;
+ fallthrough;
default:
return -ENODEV;
}
@@ -1504,16 +1494,12 @@
unsigned long flags;
struct macio_chip *macio;
struct device_node *np;
- struct device_node *cpus;
macio = &macio_chips[0];
if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
return -ENODEV;
- cpus = of_find_node_by_path("/cpus");
- if (cpus == NULL)
- return -ENODEV;
- for (np = cpus->child; np != NULL; np = np->sibling) {
+ for_each_of_cpu_node(np) {
const u32 *num = of_get_property(np, "reg", NULL);
const u32 *rst = of_get_property(np, "soft-reset", NULL);
if (num == NULL || rst == NULL)
@@ -1523,7 +1509,6 @@
break;
}
}
- of_node_put(cpus);
if (np == NULL || reset_io == 0)
return -ENODEV;
@@ -2515,31 +2500,26 @@
* supposed to be set when not supported, but I'm not very confident
* that all Apple OF revs did it properly, I do it the paranoid way.
*/
- while (uninorth_base && uninorth_rev > 3) {
- struct device_node *cpus = of_find_node_by_path("/cpus");
+ if (uninorth_base && uninorth_rev > 3) {
struct device_node *np;
- if (!cpus || !cpus->child) {
- printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
- of_node_put(cpus);
- break;
+ for_each_of_cpu_node(np) {
+ int cpu_count = 1;
+
+ /* Nap mode not supported on SMP */
+ if (of_get_property(np, "flush-on-lock", NULL) ||
+ (cpu_count > 1)) {
+ powersave_nap = 0;
+ of_node_put(np);
+ break;
+ }
+
+ cpu_count++;
+ powersave_nap = 1;
}
- np = cpus->child;
- /* Nap mode not supported on SMP */
- if (np->sibling) {
- of_node_put(cpus);
- break;
- }
- /* Nap mode not supported if flush-on-lock property is present */
- if (of_get_property(np, "flush-on-lock", NULL)) {
- of_node_put(cpus);
- break;
- }
- of_node_put(cpus);
- powersave_nap = 1;
- printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
- break;
}
+ if (powersave_nap)
+ printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
/* On CPUs that support it (750FX), lowspeed by default during
* NAP mode
--
Gitblit v1.6.2