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From: Hein Tibosch <hein_tibosch@yahoo.es>
To: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: viresh kumar <viresh.kumar@linaro.org>,
	spear-devel <spear-devel@list.st.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"ludovic.desroches" <ludovic.desroches@atmel.com>,
	Havard Skinnemoen <havard@skinnemoen.net>,
	Nicolas Ferre <nicolas.ferre@atmel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Arnd Bergmann <arnd.bergmann@linaro.org>
Subject: Re: [PATCH 1/2] dw_dmac: make driver endianness configurable
Date: Mon, 27 Aug 2012 16:47:40 +0800	[thread overview]
Message-ID: <503B342C.9060300@yahoo.es> (raw)
In-Reply-To: <20120827070323.GC28721@samfundet.no>

On 8/27/2012 3:03 PM, Hans-Christian Egtvedt wrote:
> I think the English in kconfig could use some brushing up.
>  
>> +config DW_DMAC_BE
>
>
> This name isn't that long, so we could skip the abbreviation of big endian;
> DW_DMAC_BIG_ENDIAN_IO or something similar?
>
>> +	bool "Synopsys DesignWare AHB DMA needs big endian access"
>>
> bool "Use big endian I/O register access"

Brushing up the config items:

+config DW_DMAC_BIG_ENDIAN_IO
+	bool "Use big endian I/O register access"
+	default y if AVR32
+	depends on DW_DMAC
+	help
+	  Say yes here to use big endian I/O access when reading and writing
+	  to the DMA controller registers. This is needed on some platforms,
+	  like the Atmel AVR32 architecture.
+
+	  If unsure, use the default setting.

And as I'd like to define the maximum memory transfer width in the same
Kconfig:

+config DW_DMAC_MEM_64_BIT
+	bool "Allow 64-bit memory transfers"
+	default y if !AVR32
+	depends on DW_DMAC
+	help
+	  Say yes if the DMA controller may do 64-bit memory transfers
+	  For AVR32, say no because only up to 32-bit transfers are
+	  defined

Would this be better?

Thanks, Hein

  reply	other threads:[~2012-08-27  9:29 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-26 20:53 [PATCH 1/2] dw_dmac: make driver endianness configurable Hein Tibosch
2012-08-27  7:03 ` Hans-Christian Egtvedt
2012-08-27  8:47   ` Hein Tibosch [this message]
2012-08-27 11:14     ` Hans-Christian Egtvedt
2012-08-27 14:58       ` Hein Tibosch
2012-08-28  3:23         ` Viresh Kumar
2012-08-28  6:55           ` Hein Tibosch
2012-08-28  7:05             ` Viresh Kumar
2012-08-28  7:39             ` Felipe Balbi
2012-09-03  7:50               ` Andy Shevchenko
2012-09-03 14:16                 ` Felipe Balbi

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