linux-kernel - Re: [PATCH] dmaengine: pl300: enable the clock to PL330 dma

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Message-ID: <CAJKOXPesbU24mrXgnTtbMOWR01Ke=hpJwLomXcYEWsLEwUx_yg@mail.gmail.com>
Date:	Mon, 4 May 2015 14:30:41 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	dinguyen@...nsource.altera.com
Cc:	dan.j.williams@...el.com, dinh.linux@...il.com,
	vinod.koul@...el.com, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dmaengine: pl300: enable the clock to PL330 dma

2015-05-04 13:28 GMT+09:00  <dinguyen@...nsource.altera.com>:
> From: Dinh Nguyen <dinguyen@...nsource.altera.com>
>
> Turn on the clock to the PL330 DMA if there is a clock node provided.

Why? There is no explanation in the patch for this important question - why?

Amba bus already does this and provide a wrapper function.
Additionally that would mess up with runtime PM and clock
enable/disable.

Best regards,
Krzysztof
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