From: Arnd Bergmann <arnd@arndb.de>
To: Vincent Yang <vincent.yang.fujitsu@gmail.com>
Cc: chris@printf.net, linux-mmc@vger.kernel.org, anton@enomsg.org,
linuxppc-dev@lists.ozlabs.org, patches@linaro.org,
andy.green@linaro.org, Vincent.Yang@tw.fujitsu.com
Subject: Re: [RFC PATCH 5/7] mmc: sdhci: host: add new f_sdh30
Date: Fri, 20 Jun 2014 12:00:40 +0200 [thread overview]
Message-ID: <5136245.WRbqGRMMHn@wuerfel> (raw)
In-Reply-To: <1403256928-11359-6-git-send-email-Vincent.Yang@tw.fujitsu.com>
On Friday 20 June 2014 17:35:26 Vincent Yang wrote:
> +Required properties:
> +- compatible: "fujitsu,f_sdh30"
> +
> +Optional properties:
> +- gpios: Specify gpios for controlling signal level
> +- clocks: Specify clocks used by SDHCI controller
> +- clock-names: Specify the clock-names to be used
If you want to use "clock-names", you have to specify the exact names
of the clock input signals used by your device, and the order in which
they are listed.
For both the clocks and the gpios, you have to specify how many signals
there are, and ideally describe what they are used for. In case of a
gpio controlling the signal level, it may be better to model this
as a gpio-regulator device, depending on how exactly it is used.
When posting a DT binding document, please always add
devicetree@vger.kernel.org to Cc.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Vincent Yang <vincent.yang.fujitsu@gmail.com>
Cc: andy.green@linaro.org, patches@linaro.org, anton@enomsg.org,
linux-mmc@vger.kernel.org, chris@printf.net,
Vincent.Yang@tw.fujitsu.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH 5/7] mmc: sdhci: host: add new f_sdh30
Date: Fri, 20 Jun 2014 12:00:40 +0200 [thread overview]
Message-ID: <5136245.WRbqGRMMHn@wuerfel> (raw)
In-Reply-To: <1403256928-11359-6-git-send-email-Vincent.Yang@tw.fujitsu.com>
On Friday 20 June 2014 17:35:26 Vincent Yang wrote:
> +Required properties:
> +- compatible: "fujitsu,f_sdh30"
> +
> +Optional properties:
> +- gpios: Specify gpios for controlling signal level
> +- clocks: Specify clocks used by SDHCI controller
> +- clock-names: Specify the clock-names to be used
If you want to use "clock-names", you have to specify the exact names
of the clock input signals used by your device, and the order in which
they are listed.
For both the clocks and the gpios, you have to specify how many signals
there are, and ideally describe what they are used for. In case of a
gpio controlling the signal level, it may be better to model this
as a gpio-regulator device, depending on how exactly it is used.
When posting a DT binding document, please always add
devicetree@vger.kernel.org to Cc.
Arnd
next prev parent reply other threads:[~2014-06-20 10:01 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-20 9:35 [RFC PATCH 0/7] mmc: sdhci: adding support for a new Fujitsu sdhci IP Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 1/7] mmc: sdhci: add quirk for broken 3.0V support Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 20:26 ` Anton Vorontsov
2014-06-20 20:26 ` Anton Vorontsov
2014-06-21 4:29 ` Vincent Yang
2014-06-21 4:29 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 2/7] mmc: sdhci: add quirk for voltage switch callback Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 3/7] mmc: sdhci: add quirk for tuning work around Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 4/7] mmc: sdhci: add quirk for single block transactions Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 5/7] mmc: sdhci: host: add new f_sdh30 Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 10:00 ` Arnd Bergmann [this message]
2014-06-20 10:00 ` Arnd Bergmann
2014-06-20 10:29 ` Vincent Yang
2014-06-20 10:29 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 6/7] mmc: core: hold SD Clock before CMD11 during Signal Voltage Switch Procedure Vincent Yang
2014-06-20 9:35 ` Vincent Yang
2014-06-20 9:35 ` [RFC PATCH 7/7] mmc: core: add manual resume capability Vincent Yang
2014-06-20 9:35 ` Vincent Yang
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