linux-kernel - Re: [PATCH 2/5] pinctrl: berlin: add the berlin4ct pinctrl driver

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Date:	Mon, 21 Sep 2015 20:06:11 +0800
From:	Jisheng Zhang <jszhang@...vell.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
CC:	<linus.walleij@...aro.org>, <antoine.tenart@...e-electrons.com>,
	<catalin.marinas@....com>, <will.deacon@....com>,
	<mark.rutland@....com>, <robh+dt@...nel.org>, <pawel.moll@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] pinctrl: berlin: add the berlin4ct pinctrl driver

Dear Sebastian,

On Sun, 20 Sep 2015 21:32:37 +0200
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com> wrote:

> > +	BERLIN_PINCTRL_GROUP("SM_TDO", 0x0, 0x3, 0x12,
> > +			BERLIN_PINCTRL_FUNCTION(0x0, "sm_tdo"),
> > +			BERLIN_PINCTRL_FUNCTION(0x1, "sm_gpio2")),
> > +	BERLIN_PINCTRL_GROUP("SM_URT0_TXD", 0x0, 0x3, 0x15,
> > +			BERLIN_PINCTRL_FUNCTION(0x0, "sm_urt0_txd"),  
> 
> Please avoid abbreviating acronyms even more, we can afford the
> few extra bytes.

In the 2nd version, I kept using HW names, for example:

1. "urt0" as the function name,

2. "SM_URT0_TXD" as the pin name (group name)

to keep sync with HW, especially the pin names are the same as HW's, because
that's what HW doc, sch, etc. call them. IMHO, using a different name with HW
is not a good idea, what do you think?

Thanks,
Jisheng
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