From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/arch/arm64/kernel/pci.c | 28 ++++++++++++++++------------
1 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/kernel/arch/arm64/kernel/pci.c b/kernel/arch/arm64/kernel/pci.c
index 0e2ea1c..1006ed2 100644
--- a/kernel/arch/arm64/kernel/pci.c
+++ b/kernel/arch/arm64/kernel/pci.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Code borrowed from powerpc/kernel/pci-common.c
*
* Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
* Copyright (C) 2014 ARM Ltd.
- *
- * 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/acpi.h>
@@ -121,7 +117,7 @@
struct device *dev = &root->device->dev;
struct resource *bus_res = &root->secondary;
u16 seg = root->segment;
- struct pci_ecam_ops *ecam_ops;
+ const struct pci_ecam_ops *ecam_ops;
struct resource cfgres;
struct acpi_device *adev;
struct pci_config_window *cfg;
@@ -165,16 +161,16 @@
/* Interface called from ACPI code to setup PCI host controller */
struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
{
- int node = acpi_get_node(root->device->handle);
struct acpi_pci_generic_root_info *ri;
struct pci_bus *bus, *child;
struct acpi_pci_root_ops *root_ops;
+ struct pci_host_bridge *host;
- ri = kzalloc_node(sizeof(*ri), GFP_KERNEL, node);
+ ri = kzalloc(sizeof(*ri), GFP_KERNEL);
if (!ri)
return NULL;
- root_ops = kzalloc_node(sizeof(*root_ops), GFP_KERNEL, node);
+ root_ops = kzalloc(sizeof(*root_ops), GFP_KERNEL);
if (!root_ops) {
kfree(ri);
return NULL;
@@ -189,13 +185,21 @@
root_ops->release_info = pci_acpi_generic_release_info;
root_ops->prepare_resources = pci_acpi_root_prepare_resources;
- root_ops->pci_ops = &ri->cfg->ops->pci_ops;
+ root_ops->pci_ops = (struct pci_ops *)&ri->cfg->ops->pci_ops;
bus = acpi_pci_root_create(root, root_ops, &ri->common, ri->cfg);
if (!bus)
return NULL;
- pci_bus_size_bridges(bus);
- pci_bus_assign_resources(bus);
+ /* If we must preserve the resource configuration, claim now */
+ host = pci_find_host_bridge(bus);
+ if (host->preserve_config)
+ pci_bus_claim_resources(bus);
+
+ /*
+ * Assign whatever was left unassigned. If we didn't claim above,
+ * this will reassign everything.
+ */
+ pci_assign_unassigned_root_bus_resources(bus);
list_for_each_entry(child, &bus->children, node)
pcie_bus_configure_settings(child);
--
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