Commit 269d4b06 authored by Jianmin Lv's avatar Jianmin Lv Committed by Hongchen Zhang
Browse files

PCI: PM: Fix pcie mrrs restoring 

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6BWFP



--------------------------------

Don't limit mmrs during resume, so that saved value can be
restored.

Fix patch "PCI: loongson: Improve the MRRS quirk for LS7A"

Signed-off-by: default avatarJianmin Lv <lvjianmin@loongson.cn>
Change-Id: I63c49e5c1d7e2a0a6eb3de9faa13cef1f94a4462
parent d4a1d525

drivers/pci/pci.c

+8 −1
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <linux/vmalloc.h>

#include <asm/dma.h>

#include <linux/aer.h>

#include <linux/suspend.h>

#include "pci.h"



DEFINE_MUTEX(pci_slot_mutex);
@@ -147,6 +148,11 @@ static bool pci_bridge_d3_disable; 
/* Force bridge_d3 for all PCIe ports */

static bool pci_bridge_d3_force;



#ifndef CONFIG_PM_SLEEP

suspend_state_t pm_suspend_target_state;

#define pm_suspend_target_state (PM_SUSPEND_ON)

#endif



static int __init pcie_port_pm_setup(char *str)

{

	if (!strcmp(str, "off"))
@@ -5769,7 +5775,8 @@ int pcie_set_readrq(struct pci_dev *dev, int rq) 


	v = (ffs(rq) - 8) << 12;



	if (bridge->no_inc_mrrs) {

	if (pm_suspend_target_state == PM_SUSPEND_ON &&

		bridge->no_inc_mrrs) {

		if (rq > pcie_get_readrq(dev))

			return -EINVAL;

	}