From: Dilip Kota <eswara.kota@linux.intel.com>
To: jingoohan1@gmail.com, gustavo.pimentel@synopsys.com,
linux-pci@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, andriy.shevchenko@intel.com,
Dilip Kota <eswara.kota@linux.intel.com>
Subject: [PATCH] PCI: dwc: Add map irq callback
Date: Wed, 14 Aug 2019 14:56:49 +0800 [thread overview]
Message-ID: <333e87c8ea92cd7442fbe874fc8c9eccabc62f58.1565763869.git.eswara.kota@linux.intel.com> (raw)
Certain platforms like Intel need to configure
registers to enable the interrupts.
Map Irq callback helps to perform platform specific
configurations while assigning or enabling the interrupts.
Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
---
drivers/pci/controller/dwc/pcie-designware-host.c | 2 +-
drivers/pci/controller/dwc/pcie-designware.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index f93252d0da5b..5880d2b72ef8 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -470,7 +470,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
bridge->sysdata = pp;
bridge->busnr = pp->root_bus_nr;
bridge->ops = &dw_pcie_ops;
- bridge->map_irq = of_irq_parse_and_map_pci;
+ bridge->map_irq = pp->map_irq ? pp->map_irq : of_irq_parse_and_map_pci;
bridge->swizzle_irq = pci_common_swizzle;
ret = pci_scan_root_bus_bridge(bridge);
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index ffed084a0b4f..604abc4fa89b 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -173,6 +173,7 @@ struct pcie_port {
struct resource *busn;
int irq;
const struct dw_pcie_host_ops *ops;
+ int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
int msi_irq;
struct irq_domain *irq_domain;
struct irq_domain *msi_domain;
--
2.11.0
next reply other threads:[~2019-08-14 6:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-14 6:56 Dilip Kota [this message]
2019-08-14 7:36 ` [PATCH] PCI: dwc: Add map irq callback Christoph Hellwig
2019-08-14 8:31 ` Dilip Kota
2019-08-14 10:59 ` Christoph Hellwig
2019-08-15 5:42 ` Dilip Kota
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=333e87c8ea92cd7442fbe874fc8c9eccabc62f58.1565763869.git.eswara.kota@linux.intel.com \
--to=eswara.kota@linux.intel.com \
--cc=andriy.shevchenko@intel.com \
--cc=gustavo.pimentel@synopsys.com \
--cc=jingoohan1@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).