From: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
To: Jarkko Nikula <jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: "Rafael J. Wysocki" <rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org>,
Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCHv4 2/3] i2c: Use stable dev_name for ACPI enumerated I2C slaves
Date: Thu, 14 Nov 2013 18:22:48 +0100 [thread overview]
Message-ID: <20131114172248.GD11022@katana> (raw)
In-Reply-To: <1384430633-23426-3-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
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On Thu, Nov 14, 2013 at 02:03:52PM +0200, Jarkko Nikula wrote:
> Current I2C adapter id - client address "x-00yy" based device naming scheme
> is not always stable enough to be used in name based matching, for instance
> within ALSA SoC subsystem.
>
> This is problematic in PC kind of platforms where I2C adapter numbers can
> change due variable amount of bus controllers, probe order, add-on cards or
> just because of BIOS settings.
>
> This patch addresses the problem by using the ACPI device name with
> "i2c-" prefix for ACPI enumerated I2C slaves. For them device name
> "x-00yz" becomes "i2c-INTABCD:ij" after this patch.
>
> Signed-off-by: Jarkko Nikula <jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Acked-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
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next prev parent reply other threads:[~2013-11-14 17:22 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-25 12:18 [RFC 0/2] I2C and SPI dev_name change for ACPI enumerated slaves Jarkko Nikula
[not found] ` <1382703540-3769-1-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-10-25 12:18 ` [RFC 1/2] i2c: Use stable dev_name for ACPI enumerated I2C slaves Jarkko Nikula
2013-10-25 12:52 ` Rafael J. Wysocki
[not found] ` <6032482.JJ4PNSSnIp-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-10-25 12:55 ` Jarkko Nikula
[not found] ` <526A6A41.6020909-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-10-25 13:18 ` Rafael J. Wysocki
2013-10-25 13:30 ` Jarkko Nikula
[not found] ` <526A726F.1030407-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-10-25 14:08 ` Rafael J. Wysocki
[not found] ` <2889412.bEKBLJtgSW-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-10-28 13:15 ` Jarkko Nikula
2013-10-28 16:10 ` Mark Brown
[not found] ` <526E636D.3070005-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-01 0:08 ` Rafael J. Wysocki
[not found] ` <1433914.mn8USodCgb-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-11-01 0:26 ` Rafael J. Wysocki
2013-10-25 12:19 ` [RFC 2/2] spi: Use stable dev_name for ACPI enumerated SPI slaves Jarkko Nikula
2013-10-25 12:59 ` Mark Brown
2013-10-25 14:09 ` Rafael J. Wysocki
2013-11-01 12:35 ` [PATCHv2 0/3] I2C and SPI dev_name change for ACPI enumerated slaves Jarkko Nikula
[not found] ` <1383309356-25430-1-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-01 12:35 ` [PATCHv2 1/3] ACPI: Expose struct acpi_device and acpi_bus_get_device() to non-ACPI builds Jarkko Nikula
2013-11-02 22:18 ` Rafael J. Wysocki
[not found] ` <3858838.4tAO673dDi-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-11-04 1:00 ` Rafael J. Wysocki
2013-11-04 21:15 ` Jarkko Nikula
2013-11-07 13:34 ` Rafael J. Wysocki
2013-11-01 12:35 ` [PATCHv2 3/3] spi: Use stable dev_name for ACPI enumerated SPI slaves Jarkko Nikula
[not found] ` <1383309356-25430-4-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-01 18:03 ` Mark Brown
2013-11-01 13:18 ` [PATCHv2 0/3] I2C and SPI dev_name change for ACPI enumerated slaves Rafael J. Wysocki
[not found] ` <1601125.4tFOPicoTX-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-11-01 13:20 ` Wolfram Sang
2013-11-01 13:44 ` Jarkko Nikula
2013-11-01 22:58 ` Rafael J. Wysocki
[not found] ` <3989164.GAoLSa6qzM-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2013-11-02 0:13 ` Wolfram Sang
2013-11-14 9:00 ` [PATCHv3 " Jarkko Nikula
[not found] ` <1384419661-28293-1-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-14 9:00 ` [PATCHv3 1/3] ACPI: Provide struct acpi_device stub for !CONFIG_ACPI builds Jarkko Nikula
2013-11-14 10:03 ` [alsa-devel] " Takashi Iwai
2013-11-14 11:14 ` Jarkko Nikula
2013-11-14 9:01 ` [PATCHv3 2/3] i2c: Use stable dev_name for ACPI enumerated I2C slaves Jarkko Nikula
2013-11-14 9:01 ` [PATCHv3 3/3] spi: Use stable dev_name for ACPI enumerated SPI slaves Jarkko Nikula
[not found] ` <1384419661-28293-4-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-14 10:10 ` Mark Brown
2013-11-14 12:03 ` [PATCHv4 0/3] I2C and SPI dev_name change for ACPI enumerated slaves Jarkko Nikula
[not found] ` <1384430633-23426-1-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-14 12:03 ` [PATCHv4 1/3] ACPI: Provide acpi_dev_name accessor for struct acpi_device device name Jarkko Nikula
2013-11-14 12:03 ` [PATCHv4 2/3] i2c: Use stable dev_name for ACPI enumerated I2C slaves Jarkko Nikula
[not found] ` <1384430633-23426-3-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-14 17:22 ` Wolfram Sang [this message]
2013-11-14 12:03 ` [PATCHv4 3/3] spi: Use stable dev_name for ACPI enumerated SPI slaves Jarkko Nikula
2013-11-16 1:30 ` [PATCHv4 0/3] I2C and SPI dev_name change for ACPI enumerated slaves Rafael J. Wysocki
2013-11-01 12:35 ` [PATCHv2 2/3] i2c: Use stable dev_name for ACPI enumerated I2C slaves Jarkko Nikula
[not found] ` <1383309356-25430-3-git-send-email-jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-02 0:15 ` Wolfram Sang
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