linux-kernel - Re: [PATCHv3 20/27] PCI: mobiveil: add Byte and Half-Word width register accessors

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Message-ID: <CAFZiPx1esvy7uqAymR7oU+hXSAUwLbKgUo3dK3CoHSajsD41-A@mail.gmail.com>
Date:   Fri, 8 Feb 2019 18:14:57 +0530
From:   Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>
To:     "Z.q. Hou" <zhiqiang.hou@....com>
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>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        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: [PATCHv3 20/27] PCI: mobiveil: add Byte and Half-Word width
 register accessors

On Tue, Jan 29, 2019 at 1:40 PM Z.q. Hou <zhiqiang.hou@....com> wrote:
>
> From: Hou Zhiqiang <Zhiqiang.Hou@....com>
>
> As there are some Byte and Half-Work width registers in PCIe
> configuration space, add Byte and Half-Word width register
> accessors.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> Reviewed-by: Minghuan Lian <Minghuan.Lian@....com>
> ---
> V3:
>  - No change
>
>  .../pci/controller/mobiveil/pcie-mobiveil.h   | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil.h b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
> index 81685840b378..933c2f34bc52 100644
> --- a/drivers/pci/controller/mobiveil/pcie-mobiveil.h
> +++ b/drivers/pci/controller/mobiveil/pcie-mobiveil.h
> @@ -181,9 +181,29 @@ static inline u32 csr_readl(struct mobiveil_pcie *pcie, u32 off)
>         return csr_read(pcie, off, 0x4);
>  }
>
> +static inline u32 csr_readw(struct mobiveil_pcie *pcie, u32 off)
> +{
> +       return csr_read(pcie, off, 0x2);
> +}
> +
> +static inline u32 csr_readb(struct mobiveil_pcie *pcie, u32 off)
> +{
> +       return csr_read(pcie, off, 0x1);
> +}
> +
>  static inline void csr_writel(struct mobiveil_pcie *pcie, u32 val, u32 off)
>  {
>         csr_write(pcie, val, off, 0x4);
>  }
>
> +static inline void csr_writew(struct mobiveil_pcie *pcie, u32 val, u32 off)
> +{
> +       csr_write(pcie, val, off, 0x2);
> +}
> +
> +static inline void csr_writeb(struct mobiveil_pcie *pcie, u32 val, u32 off)
> +{
> +       csr_write(pcie, val, off, 0x1);
> +}
> +
>  #endif /* _PCIE_MOBIVEIL_H */
> --
> 2.17.1
>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>