linux-kernel - Re: [RESEND v2 3/6] soc: starfive: Modify ioremap to regmap

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Date:   Thu, 20 Apr 2023 14:03:14 +0800
From:   Changhuang Liang <changhuang.liang@...rfivetech.com>
To:     Conor Dooley <conor@...nel.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Walker Chen <walker.chen@...rfivetech.com>,
        Hal Feng <hal.feng@...rfivetech.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>
Subject: Re: [RESEND v2 3/6] soc: starfive: Modify ioremap to regmap



On 2023/4/20 1:29, Conor Dooley wrote:
> On Tue, Apr 18, 2023 at 08:56:43PM -0700, Changhuang Liang wrote:
>> Modify ioremap to regmap which can be compatible with the syscon
>> interface, such as:
>> struct regmap *syscon_node_to_regmap(struct device_node *np)
>> Convenient introduction of syscon operation.
> 
> What's missing here is an explanation of *why* you are making this
> compatible with the syscon interface. Provided everything else is fine,
> I can fix this when applying the series.
> 
> Thanks,
> Conor.
> 

Add this patch just for using the same member(struct regmap *base) in patch 5.

Maybe I should replace syscon_node_to_regmap() with of_iomap() in patch 5.
So that patch 5 will use (void __iomem *base) member, and I also can drop
this patch 3 in this series. 

struct regmap *syscon_node_to_regmap(struct device_node *np);
void __iomem *of_iomap(struct device_node *node, int index);