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From: Arnd Bergmann <arnd@arndb.de>
To: Sven Peter <sven@svenpeter.dev>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Olof Johansson <olof@lixom.net>, Arnd Bergmann <arnd@arndb.de>,
	Hector Martin <marcan@marcan.st>,
	Mohamed Mediouni <mohamed.mediouni@caramail.com>,
	Stan Skowronek <stan@corellium.com>,
	Mark Kettenis <mark.kettenis@xs4all.nl>,
	Alyssa Rosenzweig <alyssa@rosenzweig.io>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Linux I2C <linux-i2c@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 02/10] i2c: pasemi: Use io{read,write}32
Date: Mon, 27 Sep 2021 09:39:31 +0200	[thread overview]
Message-ID: <CAK8P3a2_6rcQa8TCgw=6uH26UfjShrVVu-zfLf2=pi6Z8cGOPg@mail.gmail.com> (raw)
In-Reply-To: <20210926095847.38261-3-sven@svenpeter.dev>

On Sun, Sep 26, 2021 at 12:00 PM Sven Peter <sven@svenpeter.dev> wrote:
>
> In preparation for splitting this driver up into a platform_driver
> and a pci_driver, replace outl/inl usage with ioport_map and
> ioread32/iowrite32.
>
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
>
> +       smbus->ioaddr = ioport_map(smbus->base, smbus->size);
> +       if (!smbus->ioaddr) {
> +               error = -EBUSY;
> +               goto out_release_region;
> +       }

While this works, I would suggest using the more regular pci_iomap()
or pcim_iomap() helper to turn the port number into an __iomem token.

        Arnd

  reply	other threads:[~2021-09-27  7:39 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-26  9:58 [PATCH 00/10] Add Apple M1 support to PASemi i2c driver Sven Peter
2021-09-26  9:58 ` [PATCH 01/10] dt-bindings: i2c: Add Apple I2C controller bindings Sven Peter
2021-10-04 18:01   ` Rob Herring
2021-09-26  9:58 ` [PATCH 02/10] i2c: pasemi: Use io{read,write}32 Sven Peter
2021-09-27  7:39   ` Arnd Bergmann [this message]
2021-09-28 15:48     ` Sven Peter
2021-09-26  9:58 ` [PATCH 03/10] i2c: pasemi: Remove usage of pci_dev Sven Peter
2021-09-26  9:58 ` [PATCH 04/10] i2c: pasemi: Split off common probing code Sven Peter
2021-09-26  9:58 ` [PATCH 05/10] i2c: pasemi: Split pci driver to its own file Sven Peter
2021-09-26  9:58 ` [PATCH 06/10] i2c: pasemi: Move common reset code to own function Sven Peter
2021-09-26  9:58 ` [PATCH 07/10] i2c: pasemi: Allow to configure bus frequency Sven Peter
2021-09-26  9:58 ` [PATCH 08/10] i2c: pasemi: Refactor _probe to use devm_* Sven Peter
2021-09-26  9:58 ` [PATCH 09/10] i2c: pasemi: Add Apple platform driver Sven Peter
2021-09-29 20:33   ` Wolfram Sang
2021-10-03 14:37     ` Sven Peter
2021-09-26  9:58 ` [PATCH 10/10] i2c: pasemi: Set enable bit for Apple variant Sven Peter
2021-09-27  7:42 ` [PATCH 00/10] Add Apple M1 support to PASemi i2c driver Arnd Bergmann
2021-09-29 20:35   ` Wolfram Sang

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