linux-kernel - Re: [PATCH v1 3/4] usb: phy: tegra: Perform general clean up of the code

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Date:   Thu, 19 Dec 2019 18:37:12 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Chen <Peter.Chen@....com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Felipe Balbi <balbi@...nel.org>, devicetree@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/4] usb: phy: tegra: Perform general clean up of the
 code

19.12.2019 15:54, Thierry Reding пишет:
> On Wed, Dec 18, 2019 at 08:53:12PM +0300, Dmitry Osipenko wrote:
>> This patch fixes few dozens of legit checkpatch warnings, adds missed
>> handling of potential error-cases, fixes ULPI clk-prepare refcounting and
>> prettifies code where makes sense. All these clean-up changes are quite
>> minor and do not fix any problems.
>>
>> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
>> ---
>>  drivers/usb/phy/phy-tegra-usb.c | 367 +++++++++++++++++---------------
>>  1 file changed, 197 insertions(+), 170 deletions(-)
> 
> This could've been multiple patches to make it easier to review, but
> either way:
> 
> Acked-by: Thierry Reding <treding@...dia.com>

Yes, it probably could be separated into 10 patches, but then there is a
chance that I won't do it because sometimes it takes more time for me to
write commit message than to make a code change + extra time to re-check
every patch before sending it out :)

> One minor comment below...
> 
>> diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
>> index 15bd253d53c9..76949dbbbdc2 100644
>> --- a/drivers/usb/phy/phy-tegra-usb.c
>> +++ b/drivers/usb/phy/phy-tegra-usb.c
> [...]
>> @@ -310,13 +315,16 @@ static void ulpi_close(struct tegra_usb_phy *phy)
>>  	}
>>  }
>>  
>> -static void utmip_pad_power_on(struct tegra_usb_phy *phy)
>> +static int utmip_pad_power_on(struct tegra_usb_phy *phy)
>>  {
>> -	unsigned long val, flags;
>> -	void __iomem *base = phy->pad_regs;
>>  	struct tegra_utmip_config *config = phy->config;
>> +	void __iomem *base = phy->pad_regs;
>> +	unsigned long val, flags;
> 
> I think technically the "val" variable would have to be u32 because
> that's what readl() and writel() operate on.

I had the same thought and decided it's not worth the extra effort.

> That could be a separate
> patch, though and isn't really a big problem.

But I'll do it now for complicity, since you're asking about it (in a v2
perhaps).

Thank you very much for the reviews!