openwrt/target/linux/generic/pending-5.10/850-0020-PCI-aardvark-Don-t-mask-irq-when-mapping.patch
Marek Behún 080691d7b1 kernel: 5.10: Backport pending pci-aardvark changes fixing MSI support
Backport Aardvark PCIe controller driver changes that fix MSI support,
that were recently sent to the linux-pci mailing list [1].

These changes fix MSI and MSI-X support for this PCIe controller, which,
among other things, make it possible to use NVMe drives with this PCIe
controllers.

[1] https://lore.kernel.org/linux-pci/20220110015018.26359-1-kabel@kernel.org/

Signed-off-by: Marek Behún <kabel@kernel.org>
2022-01-15 17:26:55 +01:00

33 lines
1.1 KiB
Diff

From dc01fca5a9d9c09ce9a3fb2bc2e7715c37ff3bd9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 1 Apr 2021 14:30:06 +0200
Subject: [PATCH] PCI: aardvark: Don't mask irq when mapping
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
By default, all Legacy INTx interrupts are masked, so there is no need to
mask this interrupt during irq_map callback.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
---
drivers/pci/controller/pci-aardvark.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 99469e3dc945..e090276ef902 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1337,7 +1337,6 @@ static int advk_pcie_irq_map(struct irq_domain *h,
{
struct advk_pcie *pcie = h->host_data;
- advk_pcie_irq_mask(irq_get_irq_data(virq));
irq_set_status_flags(virq, IRQ_LEVEL);
irq_set_chip_and_handler(virq, &pcie->irq_chip,
handle_level_irq);
--
2.34.1