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 13:54:37 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...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

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>

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

Thierry

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