From: "Christian Daudt" <csd@broadcom.com>
To: Chris Ball <cjb@laptop.org>
Cc: linux-doc@vger.kernel.org,
Jerry Huang <Chang-Ming.Huang@freescale.com>,
Grant Likely <grant.likely@secretlab.ca>,
Wei WANG <wei_wang@realsil.com.cn>,
matt.porter@linaro.org, Kevin Liu <kliu5@marvell.com>,
Lars-Peter Clausen <lars@metafoo.de>,
Stephen Warren <swarren@nvidia.com>,
csd_b@daudt.org, Viresh Kumar <viresh.kumar@linaro.org>,
plagnioj@jcrosoft.com, devicetree-discuss@lists.ozlabs.org,
Arnd Bergmann <arnd@arndb.de>,
Sascha Hauer <s.hauer@pengutronix.de>,
Rob Herring <rob.herring@calxeda.com>,
Bill Pemberton <wfp5p@virginia.edu>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
Anton Vorontsov <avorontsov@ru.mvista.com>,
linux-arm-kernel@lists.infradead.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
Ludovic Desroches <ludovic.desroches@atmel.com>,
Rob Landley <rob@lan>
Subject: Re: [PATCH V4 2/3] ARM: mmc: bcm281xx SDHCI driver
Date: Fri, 31 May 2013 17:17:36 -0700 [thread overview]
Message-ID: <51A93DA0.3070909@broadcom.com> (raw)
In-Reply-To: <87d2s7ceh0.fsf@octavius.laptop.org>
Hi Chris,
On 13-05-31 09:15 AM, Chris Ball wrote:
>
> Could you investigate replacing this section of code with a call to
> mmc_of_parse(), please? It should be able to replace your parsing
> and handling of bus-width, cd-gpios, wp-gpios, and non-removable
> (other than the initialization quirks specific to your hardware).
>
> I'd like to avoid every driver having its own DT parsing.
> Thanks,
>
> - Chris.
I looked into it and it can replace just about everything that our own
dt parsing code is doing. The only problem is with cd_gpio. If I call
mmc_of_parse, then it will install its own irq handler for cd gpio, and
our driver needs a different handler. the mmc irq handler can call a
card_event callback, but that is already pointing to sdhci_card_event.
So the only way I can use mmc_of_parse that I can see is by adding a
flag to it to skip cd_gpio parsing which only this driver will then set
to true. Any other ideas ?
Thanks,
csd
WARNING: multiple messages have this Message-ID (diff)
From: csd@broadcom.com (Christian Daudt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 2/3] ARM: mmc: bcm281xx SDHCI driver
Date: Fri, 31 May 2013 17:17:36 -0700 [thread overview]
Message-ID: <51A93DA0.3070909@broadcom.com> (raw)
In-Reply-To: <87d2s7ceh0.fsf@octavius.laptop.org>
Hi Chris,
On 13-05-31 09:15 AM, Chris Ball wrote:
>
> Could you investigate replacing this section of code with a call to
> mmc_of_parse(), please? It should be able to replace your parsing
> and handling of bus-width, cd-gpios, wp-gpios, and non-removable
> (other than the initialization quirks specific to your hardware).
>
> I'd like to avoid every driver having its own DT parsing.
> Thanks,
>
> - Chris.
I looked into it and it can replace just about everything that our own
dt parsing code is doing. The only problem is with cd_gpio. If I call
mmc_of_parse, then it will install its own irq handler for cd gpio, and
our driver needs a different handler. the mmc irq handler can call a
card_event callback, but that is already pointing to sdhci_card_event.
So the only way I can use mmc_of_parse that I can see is by adding a
flag to it to skip cd_gpio parsing which only this driver will then set
to true. Any other ideas ?
Thanks,
csd
next prev parent reply other threads:[~2013-06-01 0:17 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-29 20:50 [PATCH V4 1/3] mmc: sdhci: Add size for caller in init+register Christian Daudt
2013-05-29 20:50 ` Christian Daudt
2013-05-29 20:50 ` [PATCH V4 2/3] ARM: mmc: bcm281xx SDHCI driver Christian Daudt
2013-05-29 20:50 ` Christian Daudt
[not found] ` <1369860607-25572-2-git-send-email-csd-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2013-05-31 16:15 ` Chris Ball
2013-05-31 16:15 ` Chris Ball
2013-06-01 0:17 ` Christian Daudt [this message]
2013-06-01 0:17 ` Christian Daudt
[not found] ` <51A93DA0.3070909-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2013-06-01 20:13 ` Arnd Bergmann
2013-06-01 20:13 ` Arnd Bergmann
2013-06-04 14:19 ` Christian Daudt
2013-06-04 14:19 ` Christian Daudt
2013-05-29 20:50 ` [PATCH V4 3/3] ARM: mmc: bcm281xx SDHCI driver (dt mods) Christian Daudt
2013-05-29 20:50 ` Christian Daudt
2013-05-31 15:41 ` [PATCH V4 1/3] mmc: sdhci: Add size for caller in init+register Christian Daudt
2013-05-31 15:41 ` Christian Daudt
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