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From: "Shevchenko, Andriy" <andriy.shevchenko@intel.com>
To: "atull@opensource.altera.com" <atull@opensource.altera.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"Chen, Alvin" <alvin.chen@intel.com>,
	"Kweh, Hock Leong" <hock.leong.kweh@intel.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"Ong, Boon Leong" <boon.leong.ong@intel.com>,
	"gnurou@gmail.com" <gnurou@gmail.com>,
	"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
	"grant.likely@linaro.org" <grant.likely@linaro.org>,
	"Westerberg, Mika" <mika.westerberg@intel.com>,
	"dvhart@linux.intel.com" <dvhart@linux.intel.com>
Subject: Re: [PATCH 2/3] GPIO: gpio-dwapb: Support Debounce
Date: Fri, 29 Aug 2014 07:38:04 +0000	[thread overview]
Message-ID: <1409297883.30155.29.camel@intel.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1408281007290.26299@atx-linux-37>

On Thu, 2014-08-28 at 10:11 -0500, atull wrote:
> On Wed, 27 Aug 2014, Weike Chen wrote:

[]

> > +static inline u32 dwapb_read(struct dwapb_gpio *gpio, unsigned int offset)
> > +{
> > +	struct bgpio_chip *bgc	= &gpio->ports[0].bgc;
> > +	void __iomem *reg_base	= gpio->regs;
> > +
> > +	return bgc->read_reg(reg_base + offset);
> > +}
> > +
> > +static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset,
> > +			       u32 val)
> > +{
> > +	struct bgpio_chip *bgc	= &gpio->ports[0].bgc;
> > +	void __iomem *reg_base	= gpio->regs;
> > +
> > +	bgc->write_reg(reg_base + offset, val);
> > +}
> > +
> 
> Hello,
> 
> I don't understand the reason for adding dwapb_read and dwapb_write here.  
> The rest of the driver is using readl and writel.  I'd rather not see two 
> different methods being used in the same driver for register access.  
> Maybe I'm missing something, but if we need to add dwapb_read/write, then
> it should be used for all register access.

Alan, it was my proposal. I rather agree that is better to convert all
accesses to that.

-- 
Andy Shevchenko <andriy.shevchenko@intel.com>
Intel Finland Oy
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  reply	other threads:[~2014-08-29  7:39 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-27 17:46 [PATCH 0/3] The Designware GPIO Supporting Weike Chen
2014-08-27 17:46 ` [PATCH 1/3] GPIO: gpio-dwapb: Enable platform driver binding to MFD driver Weike Chen
     [not found]   ` <1409161588-19417-2-git-send-email-alvin.chen-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-09-03  6:57     ` Linus Walleij
2014-09-03 20:03   ` Sebastian Andrzej Siewior
2014-09-04  2:00     ` Chen, Alvin
     [not found]       ` <20140904073027.GA3336@breakpoint.cc>
     [not found]         ` <4656BEB6164FC34F8171C6538F1A595B2E982558@SHSMSX101.ccr.corp.intel.com>
2014-09-04 12:01           ` Shevchenko, Andriy
2014-08-27 17:46 ` [PATCH 2/3] GPIO: gpio-dwapb: Support Debounce Weike Chen
2014-08-28 15:11   ` atull
2014-08-29  7:38     ` Shevchenko, Andriy [this message]
2014-09-01  3:03       ` Chen, Alvin
2014-08-27 17:46 ` [PATCH 3/3] GPIO: gpio-dwapb: Suspend & Resume PM enabling Weike Chen
2014-08-27 16:15   ` atull
2014-08-28  1:09     ` Chen, Alvin
2014-08-28 15:01   ` atull
2014-09-01  3:20     ` Chen, Alvin
     [not found]   ` <1409161588-19417-4-git-send-email-alvin.chen-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-09-04 16:45     ` Linus Walleij
2014-09-05  2:09       ` Chen, Alvin
2014-09-05  8:00         ` Linus Walleij
2014-09-05  8:20           ` Chen, Alvin

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