| Message ID | 20191120034451.30102-3-Zhiqiang.Hou@nxp.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Delegated to: | Lorenzo Pieralisi |
| Headers | show |
| Series | PCI: Recode Mobiveil driver and add PCIe Gen4 driver for NXP Layerscape SoCs | expand |
On Wed, Nov 20, 2019 at 03:45:30AM +0000, Z.q. Hou wrote: > From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> > > Move the host initialization related operations into a new > routine to make it can be reused by other incoming platform's s/to make/such that/ 'function' is probably a better word than 'routine'. > PCIe host driver, in which the Mobiveil GPEX is integrated. > > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> > --- > V9: > - New patch splited from the #1 of V8 patches to make it easy to review. > > drivers/pci/controller/pcie-mobiveil.c | 38 +++++++++++++++----------- > 1 file changed, 22 insertions(+), 16 deletions(-) > > diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c > index 5fd26e376af2..97f682ca7c7a 100644 > --- a/drivers/pci/controller/pcie-mobiveil.c > +++ b/drivers/pci/controller/pcie-mobiveil.c > @@ -873,27 +873,15 @@ static int mobiveil_pcie_init_irq_domain(struct mobiveil_pcie *pcie) > return 0; > } > > -static int mobiveil_pcie_probe(struct platform_device *pdev) > +int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie) This is no longer static - but do you need to add a header file somewhere? > { > - struct mobiveil_pcie *pcie; > + struct root_port *rp = &pcie->rp; > + struct pci_host_bridge *bridge = rp->bridge; > + struct device *dev = &pcie->pdev->dev; > struct pci_bus *bus; > struct pci_bus *child; > - struct pci_host_bridge *bridge; > - struct device *dev = &pdev->dev; > - struct root_port *rp; > int ret; > > - /* allocate the PCIe port */ > - bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); > - if (!bridge) > - return -ENOMEM; > - > - pcie = pci_host_bridge_priv(bridge); > - rp = &pcie->rp; > - rp->bridge = bridge; > - > - pcie->pdev = pdev; > - > ret = mobiveil_pcie_parse_dt(pcie); > if (ret) { > dev_err(dev, "Parsing DT failed, ret: %x\n", ret); > @@ -956,6 +944,24 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) > return 0; > } > > +static int mobiveil_pcie_probe(struct platform_device *pdev) > +{ > + struct mobiveil_pcie *pcie; > + struct pci_host_bridge *bridge; > + struct device *dev = &pdev->dev; > + > + bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); You've lost the comment that was above this. Thanks, Andrew Murray > + if (!bridge) > + return -ENOMEM; > + > + pcie = pci_host_bridge_priv(bridge); > + pcie->rp.bridge = bridge; > + > + pcie->pdev = pdev; > + > + return mobiveil_pcie_host_probe(pcie); > +} > + > static const struct of_device_id mobiveil_pcie_of_match[] = { > {.compatible = "mbvl,gpex40-pcie",}, > {}, > -- > 2.17.1 >
Hi Andrew, Thanks a lot for your comments! > -----Original Message----- > From: Andrew Murray <andrew.murray@arm.com> > Sent: 2020年1月13日 18:19 > To: Z.q. Hou <zhiqiang.hou@nxp.com> > Cc: linux-pci@vger.kernel.org; linux-arm-kernel@lists.infradead.org; > devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; > bhelgaas@google.com; robh+dt@kernel.org; arnd@arndb.de; > mark.rutland@arm.com; l.subrahmanya@mobiveil.co.in; > shawnguo@kernel.org; m.karthikeyan@mobiveil.co.in; Leo Li > <leoyang.li@nxp.com>; lorenzo.pieralisi@arm.com; > catalin.marinas@arm.com; will.deacon@arm.com; Mingkai Hu > <mingkai.hu@nxp.com>; M.h. Lian <minghuan.lian@nxp.com>; Xiaowei Bao > <xiaowei.bao@nxp.com> > Subject: Re: [PATCHv9 02/12] PCI: mobiveil: Move the host initialization into a > routine > > On Wed, Nov 20, 2019 at 03:45:30AM +0000, Z.q. Hou wrote: > > From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> > > > > Move the host initialization related operations into a new routine to > > make it can be reused by other incoming platform's > > s/to make/such that/ > > 'function' is probably a better word than 'routine'. > Will change in v10. > > > PCIe host driver, in which the Mobiveil GPEX is integrated. > > > > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> > > --- > > V9: > > - New patch splited from the #1 of V8 patches to make it easy to review. > > > > drivers/pci/controller/pcie-mobiveil.c | 38 > > +++++++++++++++----------- > > 1 file changed, 22 insertions(+), 16 deletions(-) > > > > diff --git a/drivers/pci/controller/pcie-mobiveil.c > > b/drivers/pci/controller/pcie-mobiveil.c > > index 5fd26e376af2..97f682ca7c7a 100644 > > --- a/drivers/pci/controller/pcie-mobiveil.c > > +++ b/drivers/pci/controller/pcie-mobiveil.c > > @@ -873,27 +873,15 @@ static int mobiveil_pcie_init_irq_domain(struct > mobiveil_pcie *pcie) > > return 0; > > } > > > > -static int mobiveil_pcie_probe(struct platform_device *pdev) > > +int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie) > > This is no longer static - but do you need to add a header file somewhere? The function mobiveil_pcie_probe() is still static below, the mobiveil_pcie_host_probe() is new introduced one, it is now only used in this .c file, so I'll change it to a static function in v10. > > > > { > > - struct mobiveil_pcie *pcie; > > + struct root_port *rp = &pcie->rp; > > + struct pci_host_bridge *bridge = rp->bridge; > > + struct device *dev = &pcie->pdev->dev; > > struct pci_bus *bus; > > struct pci_bus *child; > > - struct pci_host_bridge *bridge; > > - struct device *dev = &pdev->dev; > > - struct root_port *rp; > > int ret; > > > > - /* allocate the PCIe port */ > > - bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); > > - if (!bridge) > > - return -ENOMEM; > > - > > - pcie = pci_host_bridge_priv(bridge); > > - rp = &pcie->rp; > > - rp->bridge = bridge; > > - > > - pcie->pdev = pdev; > > - > > ret = mobiveil_pcie_parse_dt(pcie); > > if (ret) { > > dev_err(dev, "Parsing DT failed, ret: %x\n", ret); @@ -956,6 > > +944,24 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) > > return 0; > > } > > > > +static int mobiveil_pcie_probe(struct platform_device *pdev) { > > + struct mobiveil_pcie *pcie; > > + struct pci_host_bridge *bridge; > > + struct device *dev = &pdev->dev; > > + > > + bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); > > You've lost the comment that was above this. Will add it back. Thanks, Zhiqiang > > Thanks, > > Andrew Murray > > > + if (!bridge) > > + return -ENOMEM; > > + > > + pcie = pci_host_bridge_priv(bridge); > > + pcie->rp.bridge = bridge; > > + > > + pcie->pdev = pdev; > > + > > + return mobiveil_pcie_host_probe(pcie); } > > + > > static const struct of_device_id mobiveil_pcie_of_match[] = { > > {.compatible = "mbvl,gpex40-pcie",}, > > {}, > > -- > > 2.17.1 > >
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 5fd26e376af2..97f682ca7c7a 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -873,27 +873,15 @@ static int mobiveil_pcie_init_irq_domain(struct mobiveil_pcie *pcie) return 0; } -static int mobiveil_pcie_probe(struct platform_device *pdev) +int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie) { - struct mobiveil_pcie *pcie; + struct root_port *rp = &pcie->rp; + struct pci_host_bridge *bridge = rp->bridge; + struct device *dev = &pcie->pdev->dev; struct pci_bus *bus; struct pci_bus *child; - struct pci_host_bridge *bridge; - struct device *dev = &pdev->dev; - struct root_port *rp; int ret; - /* allocate the PCIe port */ - bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); - if (!bridge) - return -ENOMEM; - - pcie = pci_host_bridge_priv(bridge); - rp = &pcie->rp; - rp->bridge = bridge; - - pcie->pdev = pdev; - ret = mobiveil_pcie_parse_dt(pcie); if (ret) { dev_err(dev, "Parsing DT failed, ret: %x\n", ret); @@ -956,6 +944,24 @@ static int mobiveil_pcie_probe(struct platform_device *pdev) return 0; } +static int mobiveil_pcie_probe(struct platform_device *pdev) +{ + struct mobiveil_pcie *pcie; + struct pci_host_bridge *bridge; + struct device *dev = &pdev->dev; + + bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); + if (!bridge) + return -ENOMEM; + + pcie = pci_host_bridge_priv(bridge); + pcie->rp.bridge = bridge; + + pcie->pdev = pdev; + + return mobiveil_pcie_host_probe(pcie); +} + static const struct of_device_id mobiveil_pcie_of_match[] = { {.compatible = "mbvl,gpex40-pcie",}, {},