linux-kernel - [PATCH 1/3] PCI: xilinx-nwl: Save error IRQ number in device

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Message-ID: <1533141889-19962-2-git-send-email-bharat.kumar.gogada@xilinx.com>
Date:   Wed, 1 Aug 2018 22:14:47 +0530
From:   Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <bhelgaas@...gle.com>, <rgummal@...inx.com>,
        Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
Subject: [PATCH 1/3] PCI: xilinx-nwl: Save error IRQ number in device_node private data

Xilinx ZynqMP PS PCIe has dedicated interrupt line for
reporting PCIe errors along with AER.
Save this error irq number in struct device_node private data,
this will be used via PCI qiurks for AER kernel service.

Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
---
 drivers/pci/controller/pcie-xilinx-nwl.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index fb32840..d505fe5 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -663,6 +663,9 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 	struct platform_device *pdev = to_platform_device(dev);
 	u32 breg_val, ecam_val, first_busno = 0;
 	int err;
+#ifdef CONFIG_PCIEAER
+	struct device_node *node = dev->of_node;
+#endif
 
 	breg_val = nwl_bridge_readl(pcie, E_BREG_CAPABILITIES) & BREG_PRESENT;
 	if (!breg_val) {
@@ -744,6 +747,9 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
 			pcie->irq_misc);
 		return err;
 	}
+#ifdef CONFIG_PCIEAER
+	node->data =  &pcie->irq_misc;
+#endif
 
 	/* Disable all misc interrupts */
 	nwl_bridge_writel(pcie, (u32)~MSGF_MISC_SR_MASKALL, MSGF_MISC_MASK);
-- 
1.7.1