linux-kernel - Re: [PATCH v6 07/12] usb: chipidea: add a usb2 driver for ci13xxx

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Message-ID: <2909480.SL9c0XWUbW@wuerfel>
Date:	Tue, 23 Sep 2014 12:39:04 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Antoine Tenart <antoine.tenart@...e-electrons.com>,
	sebastian.hesselbarth@...il.com, Peter.Chen@...escale.com,
	balbi@...com, p.zabel@...gutronix.de,
	thomas.petazzoni@...e-electrons.com, zmxu@...vell.com,
	devicetree@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, alexandre.belloni@...e-electrons.com,
	jszhang@...vell.com
Subject: Re: [PATCH v6 07/12] usb: chipidea: add a usb2 driver for ci13xxx

On Tuesday 23 September 2014 12:28:03 Antoine Tenart wrote:
> +       if (dev->of_node) {
> +               ret = ci_hdrc_usb2_dt_probe(dev, ci_pdata);
> +               if (ret)
> +                       goto clk_err;
> +       } else {
> +               ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
> +               if (ret)
> +                       goto clk_err;
> +       }
> 

Why do you care about the non-DT case here? I think it would be nicer to
open-code the ci_hdrc_usb2_dt_probe() function in here and remove
the dma_set_mask_and_coherent(), which should not even be necessary for
the case where you have a hardwired platform device.

	Arnd
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