From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeffy Chen Subject: [RFC PATCH v10 2/7] of/irq: Adjust of_pci_irq parsing for multiple interrupts Date: Fri, 27 Oct 2017 15:26:07 +0800 Message-ID: <20171027072612.26565-3-jeffy.chen@rock-chips.com> References: <20171027072612.26565-1-jeffy.chen@rock-chips.com> Return-path: In-Reply-To: <20171027072612.26565-1-jeffy.chen@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, bhelgaas@google.com Cc: linux-pm@vger.kernel.org, tony@atomide.com, shawn.lin@rock-chips.com, briannorris@chromium.org, rjw@rjwysocki.net, dianders@chromium.org, Jeffy Chen , Frank Rowand , devicetree@vger.kernel.org, Rob Herring List-Id: devicetree@vger.kernel.org Currently we are considering the first irq as the PCI interrupt pin, but a PCI device may have multiple interrupts(e.g. PCIe WAKE# pin). Only parse the PCI interrupt pin when the irq is unnamed or named as "pci". Signed-off-by: Jeffy Chen --- Changes in v10: None Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v3: None Changes in v2: None drivers/of/of_pci_irq.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c index 3a05568f65df..8b69211f0b88 100644 --- a/drivers/of/of_pci_irq.c +++ b/drivers/of/of_pci_irq.c @@ -27,7 +27,18 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq */ dn = pci_device_to_OF_node(pdev); if (dn) { - rc = of_irq_parse_one(dn, 0, out_irq); + struct property *prop; + const char *name; + int index = 0; + + prop = of_find_property(dn, "interrupt-names", NULL); + for (name = of_prop_next_string(prop, NULL); name; + name = of_prop_next_string(prop, name), index++) { + if (!strcmp(name, "pci")) + break; + } + + rc = of_irq_parse_one(dn, index, out_irq); if (!rc) return rc; } -- 2.11.0