linux-kernel - Re: [PATCH v5 1/5] phy: add a driver for the Rockchip SoC internal USB2.0 PHY

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Date:	Thu, 11 Dec 2014 15:16:06 +0800
From:	Chris Zhong <zyw@...k-chips.com>
To:	Joe Perches <joe@...ches.com>, Yunzhi Li <lyz@...k-chips.com>
CC:	Kishon Vijay Abraham I <kishon@...com>, heiko@...ech.de,
	jwerner@...omium.org, dianders@...omium.org, olof@...om.net,
	huangtao@...k-chips.com, cf@...k-chips.com,
	linux-rockchip@...ts.infradead.org,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v5 1/5] phy: add a driver for the Rockchip SoC internal
 USB2.0 PHY


On 12/11/2014 03:06 PM, Joe Perches wrote:
> On Thu, 2014-12-11 at 14:52 +0800, Yunzhi Li wrote:
>> On 2014/12/11 14:37, Joe Perches wrote:
>>> On Thu, 2014-12-11 at 11:57 +0530, Kishon Vijay Abraham I wrote:
> []
>>>> So If I have to write something on bit 0, I have to set bit 16.
>>>> If I have to write something on bit 1, I have to set bit 17.
>>>> If I have to write something on bit 2, I have to set bit 18.
>>>> and so on.
>>> To me it'd look better to use another << rather than a plus
>> Like (BIT(13) << 16)? It looks strange, or could I just use ((1 << 13)
>> << 16) to describe this bit ?
> Up to you.  To me, the BIT(x+y) seems odd.
I think BIT(29) is better, since you have described in comments.
>
>
>
>
>


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