diff --git a/patches.suse/PCI-aardvark-Increase-polling-delay-to-1.5s-while-wa.patch b/patches.suse/PCI-aardvark-Increase-polling-delay-to-1.5s-while-wa.patch
new file mode 100644
index 0000000..5c99f31
--- /dev/null
+++ b/patches.suse/PCI-aardvark-Increase-polling-delay-to-1.5s-while-wa.patch
@@ -0,0 +1,54 @@
+From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
+Date: Thu, 22 Jul 2021 16:40:39 +0200
+Subject: PCI: aardvark: Increase polling delay to 1.5s while waiting for PIO
+ response
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+Git-commit: 02bcec3ea5591720114f586960490b04b093a09e
+Patch-mainline: 5.15-rc1
+References: git-fixes
+
+Measurements in different conditions showed that aardvark hardware PIO
+response can take up to 1.44s. Increase wait timeout from 1ms to 1.5s to
+ensure that we do not miss responses from hardware. After 1.44s hardware
+returns errors (e.g. Completer abort).
+
+The previous two patches fixed checking for PIO status, so now we can use
+it to also catch errors which are reported by hardware after 1.44s.
+
+After applying this patch, kernel can detect and print PIO errors to dmesg:
+
+    [    6.879999] advk-pcie d0070000.pcie: Non-posted PIO Response Status: CA, 0xe00 @ 0x100004
+    [    6.896436] advk-pcie d0070000.pcie: Posted PIO Response Status: COMP_ERR, 0x804 @ 0x100004
+    [    6.913049] advk-pcie d0070000.pcie: Posted PIO Response Status: COMP_ERR, 0x804 @ 0x100010
+    [    6.929663] advk-pcie d0070000.pcie: Non-posted PIO Response Status: CA, 0xe00 @ 0x100010
+    [    6.953558] advk-pcie d0070000.pcie: Posted PIO Response Status: COMP_ERR, 0x804 @ 0x100014
+    [    6.970170] advk-pcie d0070000.pcie: Non-posted PIO Response Status: CA, 0xe00 @ 0x100014
+    [    6.994328] advk-pcie d0070000.pcie: Posted PIO Response Status: COMP_ERR, 0x804 @ 0x100004
+
+Without this patch kernel prints only a generic error to dmesg:
+
+    [    5.246847] advk-pcie d0070000.pcie: config read/write timed out
+
+Link: https://lore.kernel.org/r/20210722144041.12661-3-pali@kernel.org
+Signed-off-by: Pali Rohár <pali@kernel.org>
+Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+Reviewed-by: Marek Behún <kabel@kernel.org>
+Cc: stable@vger.kernel.org # 7fbcb5da811b ("PCI: aardvark: Don't rely on jiffies while holding spinlock")
+Signed-off-by: Jiri Slaby <jslaby@suse.cz>
+---
+ drivers/pci/host/pci-aardvark.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pci/host/pci-aardvark.c
++++ b/drivers/pci/host/pci-aardvark.c
+@@ -169,7 +169,7 @@
+ 	(PCIE_CONF_BUS(bus) | PCIE_CONF_DEV(PCI_SLOT(devfn))	| \
+ 	 PCIE_CONF_FUNC(PCI_FUNC(devfn)) | PCIE_CONF_REG(where))
+ 
+-#define PIO_RETRY_CNT			500
++#define PIO_RETRY_CNT			750000 /* 1.5 s */
+ #define PIO_RETRY_DELAY			2 /* 2 us*/
+ 
+ #define LINK_WAIT_MAX_RETRIES		10
diff --git a/series.conf b/series.conf
index 176fa50..e6ba3ff 100644
--- a/series.conf
+++ b/series.conf
@@ -61602,6 +61602,7 @@
 	patches.suse/PCI-Return-0-data-on-pciconfig_read-CAP_SYS_ADMIN-fa.patch
 	patches.suse/PCI-Add-ACS-quirks-for-Cavium-multi-function-devices.patch
 	patches.suse/PCI-aardvark-Fix-checking-for-PIO-status.patch
+	patches.suse/PCI-aardvark-Increase-polling-delay-to-1.5s-while-wa.patch
 	patches.suse/msft-hv-2426-PCI-hv-Support-for-create-interrupt-v3.patch
 	patches.suse/profiling-fix-shift-out-of-bounds-bugs.patch
 	patches.suse/prctl-allow-to-setup-brk-for-et_dyn-executables.patch