linux-kernel - Re: [PATCH 14/14] PCI: j721e: add suspend and resume support

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Message-ID: <CAHp75VfPQz4PWdzFUU_n+R=XohBjyXM0zsjD-bUD2jmb42ds8Q@mail.gmail.com>
Date: Mon, 15 Jan 2024 22:13:25 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Thomas Richard <thomas.richard@...tlin.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl>, 
	Andy Shevchenko <andy@...nel.org>, Tony Lindgren <tony@...mide.com>, 
	Haojian Zhuang <haojian.zhuang@...aro.org>, Vignesh R <vigneshr@...com>, 
	Aaro Koskinen <aaro.koskinen@....fi>, Janusz Krzysztofik <jmkrzyszt@...il.com>, 
	Andi Shyti <andi.shyti@...nel.org>, Peter Rosin <peda@...ntia.se>, Vinod Koul <vkoul@...nel.org>, 
	Kishon Vijay Abraham I <kishon@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Tom Joseph <tjoseph@...ence.com>, Lorenzo Pieralisi <lpieralisi@...nel.org>, 
	Krzysztof Wilczyński <kw@...ux.com>, 
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-omap@...r.kernel.org, linux-i2c@...r.kernel.org, 
	linux-phy@...ts.infradead.org, linux-pci@...r.kernel.org, 
	gregory.clement@...tlin.com, theo.lebrun@...tlin.com, 
	thomas.petazzoni@...tlin.com, u-kumar1@...com
Subject: Re: [PATCH 14/14] PCI: j721e: add suspend and resume support

On Mon, Jan 15, 2024 at 6:16 PM Thomas Richard
<thomas.richard@...tlin.com> wrote:
>
> From: Théo Lebrun <theo.lebrun@...tlin.com>
>
> Add suspend and resume support for rc mode.

Same comments as for earlier patches.
Since it's wide, please, check the whole series for the same issues
and address them.

..

> +               if (pcie->reset_gpio)

Dup, why?

> +                       gpiod_set_value_cansleep(pcie->reset_gpio, 0);

..

> +               if (pcie->reset_gpio) {
> +                       usleep_range(100, 200);

fsleep() ?
Btw, why is it needed here, perhaps a comment?

> +                       gpiod_set_value_cansleep(pcie->reset_gpio, 1);
> +               }

..

> +               ret = cdns_pcie_host_setup(rc, false);
> +               if (ret < 0) {
> +                       clk_disable_unprepare(pcie->refclk);
> +                       return -ENODEV;

Why is the error code being shadowed?

> +               }

..

> +#define cdns_pcie_to_rc(p) container_of(p, struct cdns_pcie_rc, pcie)

Is container_of.h included in this file?

..

> @@ -381,7 +383,6 @@ struct cdns_pcie_ep {
>         unsigned int            quirk_disable_flr:1;
>  };
>
> -
>  /* Register access */
>  static inline void cdns_pcie_writel(struct cdns_pcie *pcie, u32 reg, u32 value)
>  {

Stray change.

-- 
With Best Regards,
Andy Shevchenko