From: Kishon Vijay Abraham I <kishon@ti.com> To: Bjorn Helgaas <bhelgaas@google.com>, Rob Herring <robh+dt@kernel.org>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Arnd Bergmann <arnd@arndb.de>, Tom Joseph <tjoseph@cadence.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, <linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <kishon@ti.com> Subject: [PATCH v4 06/14] PCI: cadence: Allow pci_host_bridge to have custom pci_ops Date: Wed, 6 May 2020 20:44:21 +0530 [thread overview] Message-ID: <20200506151429.12255-7-kishon@ti.com> (raw) In-Reply-To: <20200506151429.12255-1-kishon@ti.com> Certain platforms like TI's J721E allows only 32-bit configuration space access. In such cases pci_generic_config_read and pci_generic_config_write cannot be used. Add support in Cadence core to let pci_host_bridge have custom pci_ops. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/pci/controller/cadence/pcie-cadence-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c index a60b9627cfbf..6c84520318a7 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-host.c +++ b/drivers/pci/controller/cadence/pcie-cadence-host.c @@ -291,7 +291,8 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc) list_splice_init(&resources, &bridge->windows); bridge->dev.parent = dev; bridge->busnr = pcie->bus; - bridge->ops = &cdns_pcie_host_ops; + if (!bridge->ops) + bridge->ops = &cdns_pcie_host_ops; bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Kishon Vijay Abraham I <kishon@ti.com> To: Bjorn Helgaas <bhelgaas@google.com>, Rob Herring <robh+dt@kernel.org>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Arnd Bergmann <arnd@arndb.de>, Tom Joseph <tjoseph@cadence.com> Cc: devicetree@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-kernel@vger.kernel.org, kishon@ti.com, linux-pci@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 06/14] PCI: cadence: Allow pci_host_bridge to have custom pci_ops Date: Wed, 6 May 2020 20:44:21 +0530 [thread overview] Message-ID: <20200506151429.12255-7-kishon@ti.com> (raw) In-Reply-To: <20200506151429.12255-1-kishon@ti.com> Certain platforms like TI's J721E allows only 32-bit configuration space access. In such cases pci_generic_config_read and pci_generic_config_write cannot be used. Add support in Cadence core to let pci_host_bridge have custom pci_ops. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/pci/controller/cadence/pcie-cadence-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c index a60b9627cfbf..6c84520318a7 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-host.c +++ b/drivers/pci/controller/cadence/pcie-cadence-host.c @@ -291,7 +291,8 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc) list_splice_init(&resources, &bridge->windows); bridge->dev.parent = dev; bridge->busnr = pcie->bus; - bridge->ops = &cdns_pcie_host_ops; + if (!bridge->ops) + bridge->ops = &cdns_pcie_host_ops; bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-05-06 15:15 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-06 15:14 [PATCH v4 00/14] Add PCIe support to TI's J721E SoC Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 01/14] PCI: cadence: Fix cdns_pcie_{host|ep}_setup() error path Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 20:59 ` Rob Herring 2020-05-20 20:59 ` Rob Herring 2020-05-06 15:14 ` [PATCH v4 02/14] linux/kernel.h: Add PTR_ALIGN_DOWN macro Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 21:00 ` Rob Herring 2020-05-20 21:00 ` Rob Herring 2020-05-06 15:14 ` [PATCH v4 03/14] PCI: cadence: Add support to use custom read and write accessors Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 21:02 ` Rob Herring 2020-05-20 21:02 ` Rob Herring 2020-05-20 22:07 ` Rob Herring 2020-05-20 22:07 ` Rob Herring 2020-05-21 13:33 ` Kishon Vijay Abraham I 2020-05-21 13:33 ` Kishon Vijay Abraham I 2020-05-21 22:17 ` Rob Herring 2020-05-21 22:17 ` Rob Herring 2020-05-22 3:36 ` Kishon Vijay Abraham I 2020-05-22 3:36 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 04/14] PCI: cadence: Add support to start link and verify link status Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 21:06 ` Rob Herring 2020-05-20 21:06 ` Rob Herring 2020-05-06 15:14 ` [PATCH v4 05/14] PCI: cadence: Add read/write accessors to perform only 32-bit accesses Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I [this message] 2020-05-06 15:14 ` [PATCH v4 06/14] PCI: cadence: Allow pci_host_bridge to have custom pci_ops Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 07/14] PCI: cadence: Add new *ops* for CPU addr fixup Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 21:34 ` Rob Herring 2020-05-20 21:34 ` Rob Herring 2020-05-21 11:34 ` Kishon Vijay Abraham I 2020-05-21 11:34 ` Kishon Vijay Abraham I 2020-05-22 16:45 ` Rob Herring 2020-05-22 16:45 ` Rob Herring 2020-05-23 1:24 ` Kishon Vijay Abraham I 2020-05-23 1:24 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 08/14] PCI: cadence: Fix updating Vendor ID and Subsystem Vendor ID register Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 21:36 ` Rob Herring 2020-05-20 21:36 ` Rob Herring 2020-05-06 15:14 ` [PATCH v4 09/14] PCI: cadence: Add MSI-X support to Endpoint driver Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 10/14] dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 11/14] dt-bindings: PCI: Add EP " Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 12/14] PCI: j721e: Add TI J721E PCIe driver Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-06 15:14 ` [PATCH v4 13/14] misc: pci_endpoint_test: Add J721E in pci_device_id table Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 22:12 ` Rob Herring 2020-05-20 22:12 ` Rob Herring 2020-05-06 15:14 ` [PATCH v4 14/14] MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe Kishon Vijay Abraham I 2020-05-06 15:14 ` Kishon Vijay Abraham I 2020-05-20 22:12 ` Rob Herring 2020-05-20 22:12 ` Rob Herring 2020-05-18 11:14 ` [PATCH v4 00/14] Add PCIe support to TI's J721E SoC Kishon Vijay Abraham I 2020-05-18 11:14 ` Kishon Vijay Abraham I
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