linux-kernel - Re: [PATCH v3 4/4] usb: dwc2: refactor common low-level hw code to platform.c

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Date:	Thu, 1 Oct 2015 10:50:18 -0500
From:	Felipe Balbi <balbi@...com>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
CC:	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-samsung-soc@...r.kernel.org>,
	Robert Baldyga <r.baldyga@...sung.com>,
	John Youn <johnyoun@...opsys.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v3 4/4] usb: dwc2: refactor common low-level hw code to
 platform.c

On Mon, Sep 21, 2015 at 12:16:12PM +0200, Marek Szyprowski wrote:
> DWC2 module on some platforms needs three additional hardware
> resources: phy controller, clock and power supply. All of them must be
> enabled/activated to properly initialize and operate. This was initially
> handled in s3c-hsotg driver, which has been converted to 'gadget' part
> of dwc2 driver. Unfortunately, not all of this code got moved to common
> platform code, what resulted in accessing DWC2 registers without
> enabling low-level hardware resources. This fails for example on Exynos
> SoCs. This patch moves all the code for managing those resources to
> common platform.c file and provides convenient wrappers for controlling
> them.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>

I just caught several build errors which this patch. I hope you can
send me a follow-up fix (which I can amend to $subject) otherwise
I'll have to drop this series

-- 
balbi

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