linux-kernel - RE: [PATCHv10 02/13] PCI: mobiveil: Move the host initialization into a function

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Date:   Mon, 24 Feb 2020 05:48:18 +0000
From:   "Z.q. Hou" <zhiqiang.hou@....com>
To:     Andrew Murray <amurray@...goodpenguin.co.uk>
CC:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "andrew.murray@....com" <andrew.murray@....com>,
        "arnd@...db.de" <arnd@...db.de>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "l.subrahmanya@...iveil.co.in" <l.subrahmanya@...iveil.co.in>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "m.karthikeyan@...iveil.co.in" <m.karthikeyan@...iveil.co.in>,
        Leo Li <leoyang.li@....com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        Mingkai Hu <mingkai.hu@....com>,
        "M.h. Lian" <minghuan.lian@....com>,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: RE: [PATCHv10 02/13] PCI: mobiveil: Move the host initialization into
 a function

Hi Andrew,

Thanks a lot for your review!

> -----Original Message-----
> From: Andrew Murray <amurray@...goodpenguin.co.uk>
> Sent: 2020年2月21日 1:19
> To: Z.q. Hou <zhiqiang.hou@....com>
> Cc: linux-pci@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
> bhelgaas@...gle.com; robh+dt@...nel.org; andrew.murray@....com;
> arnd@...db.de; mark.rutland@....com; l.subrahmanya@...iveil.co.in;
> shawnguo@...nel.org; m.karthikeyan@...iveil.co.in; Leo Li
> <leoyang.li@....com>; lorenzo.pieralisi@....com;
> catalin.marinas@....com; will.deacon@....com; Mingkai Hu
> <mingkai.hu@....com>; M.h. Lian <minghuan.lian@....com>; Xiaowei Bao
> <xiaowei.bao@....com>
> Subject: Re: [PATCHv10 02/13] PCI: mobiveil: Move the host initialization
> into a function
> 
> On Thu, Feb 13, 2020 at 12:06:33PM +0800, Zhiqiang Hou wrote:
> > From: Hou Zhiqiang <Zhiqiang.Hou@....com>
> >
> > Move the host initialization related operations into a new routine
> > such that it can be reused by other incoming platform's PCIe host
> > driver, in which the Mobiveil GPEX is integrated.
> >
> > Change the subject and change log slightly.
> > Change the function mobiveil_pcie_host_probe to static.
> > Add back the comments that was lost in v9.
> 
> Are these three lines above supposed to be in the history below the
> --- ?

Just remove these 3 lines.

Thanks,
Zhiqiang

> 
> Perhaps Lorenzo can change that when he applies it.
> 
> Reviewed-by: Andrew Murray <amurray@...goodpenguin.co.uk>
> 
> >
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> > ---
> > V10:
> >  - Refined the subject and change log.
> >  - Changed the mobiveil_pcie_host_probe() to a static function.
> >  - Added back the lost comments.
> >
> >  drivers/pci/controller/pcie-mobiveil.c | 39
> > +++++++++++++++-----------
> >  1 file changed, 23 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/pci/controller/pcie-mobiveil.c
> > b/drivers/pci/controller/pcie-mobiveil.c
> > index d4de560cd711..01df04ea5b48 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)
> > +static int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie)
> >  {
> > -	struct mobiveil_pcie *pcie;
> > +	struct mobiveil_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 mobiveil_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
> > +944,25 @@ 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;
> > +
> > +	/* allocate the PCIe port */
> > +	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",},
> >  	{},
> > --
> > 2.17.1
> >