From: Arnd Bergmann <arnd@arndb.de>
To: viresh kumar <viresh.kumar@linaro.org>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
"spear-devel" <spear-devel@list.st.com>
Subject: Re: [PATCHv2 2/4] dmaengine: dw_dmac: Add PCI part of the driver
Date: Thu, 27 Sep 2012 07:41:53 +0000 [thread overview]
Message-ID: <201209270741.54443.arnd@arndb.de> (raw)
In-Reply-To: <CAOh2x=kKYsvYKqpJ6EUpv_OL5f6OsvyS0Lq9yO2uouPPSXSgvw@mail.gmail.com>
On Thursday 27 September 2012, viresh kumar wrote:
> I believe there is no common initialization part here, because PCI device in any
> case would be calling probe of platform device. :)
Looking at the driver more closely now. Right now, it only supports platform
devices, and the dw_probe function contains some parts that are related to
platform devices and some parts that are needed also in case of PCI.
My suggestion would be that you split the dw_probe function to separate out
the bus specific parts and end up with three functions like
int dw_dmac_probe(struct dw_dma *dw);
int dw_dmac_platform_probe(struct platform_device *pdev);
int dw_dmac_pci_probe(struct dw_dma *dw);
where the first one is called by the other two, depending on the bus type.
This could be done either splitting the driver into multiple files so you can
have the platform and pci parts in separate driver modules depending on the
common module that does all the actual work, or everything can be put in
a single file with an #ifdef CONFIG_PCI to disable the pci driver parts
when they don't apply.
Does this make sense?
Arnd
next prev parent reply other threads:[~2012-09-27 14:22 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-25 12:13 [PATCHv1 0/6] dw_dmac: split the driver and introduce PCI part Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 1/6] dmaengine: dw_dmac: Remove clk API dependency Andy Shevchenko
2012-09-26 3:42 ` viresh kumar
2012-09-26 12:33 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 2/6] dmaengine: dw_dmac: add driver for Atmel AT32 Andy Shevchenko
2012-09-26 3:50 ` viresh kumar
2012-09-26 6:47 ` Andy Shevchenko
2012-09-26 6:51 ` viresh kumar
2012-09-26 6:56 ` Andy Shevchenko
2012-09-26 3:52 ` viresh kumar
2012-09-25 12:13 ` [PATCHv1 3/6] dmaengine: dw_dmac: Add PCI part of the driver Andy Shevchenko
2012-09-26 4:00 ` viresh kumar
2012-09-26 7:48 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 4/6] avr32: at32ap700x: rename DMA controller Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 5/6] MAINTAINERS: fix indentation for Viresh Kumar Andy Shevchenko
2012-09-26 3:36 ` viresh kumar
2012-09-26 7:10 ` Andy Shevchenko
2012-09-25 12:13 ` [PATCHv1 6/6] MAINTAINERS: add recently created files to dw_dmac section Andy Shevchenko
2012-09-25 13:19 ` Joe Perches
2012-09-25 13:37 ` Andy Shevchenko
2012-09-25 15:33 ` Vinod Koul
2012-09-25 16:57 ` Joe Perches
2012-09-26 6:44 ` Andy Shevchenko
2012-09-26 3:39 ` viresh kumar
2012-09-26 12:40 ` [PATCHv2 0/4] dw_dmac: split the driver and introduce PCI part Andy Shevchenko
2012-09-26 12:40 ` [PATCHv2 1/4] dmaengine: dw_dmac: convert to platform driver Andy Shevchenko
2012-09-26 14:13 ` viresh kumar
2012-09-26 18:00 ` Andy Shevchenko
2012-09-27 3:47 ` viresh kumar
2012-09-26 12:40 ` [PATCHv2 2/4] dmaengine: dw_dmac: Add PCI part of the driver Andy Shevchenko
2012-09-26 14:33 ` viresh kumar
2012-09-26 17:55 ` Andy Shevchenko
2012-09-26 19:41 ` Arnd Bergmann
2012-09-27 3:53 ` viresh kumar
2012-09-27 7:41 ` Arnd Bergmann [this message]
2012-09-27 14:22 ` Vinod Koul
2012-09-27 14:42 ` Arnd Bergmann
2012-09-26 12:40 ` [PATCHv2 3/4] dma: move dw_dmac driver to an own directory Andy Shevchenko
2012-09-26 14:53 ` viresh kumar
2012-09-26 17:50 ` Andy Shevchenko
2012-09-26 12:40 ` [PATCHv2 4/4] MAINTAINERS: add recently created files to dw_dmac section Andy Shevchenko
2012-09-26 14:45 ` viresh kumar
2012-09-26 14:48 ` viresh kumar
2012-09-26 17:49 ` Andy Shevchenko
2012-09-27 6:38 ` Andy Shevchenko
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