linux-kernel - Re: [PATCH v5 6/8] iio: gyro: bmg160: optimize i2c transfers in trigger handler

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Message-ID: <20150824114919.GA3608@katana>
Date:	Mon, 24 Aug 2015 13:49:19 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Jonathan Cameron <jic23@...nel.org>
Cc:	"Pandruvada, Srinivas" <srinivas.pandruvada@...el.com>,
	"mpa@...gutronix.de" <mpa@...gutronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"pmeerw@...erw.net" <pmeerw@...erw.net>,
	"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
	"Tirdea, Irina" <irina.tirdea@...el.com>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH v5 6/8] iio: gyro: bmg160: optimize i2c transfers in
 trigger handler


> Do we want to insist on a much larger change (conversion to regmap)
> when if this in place, a simple single functional call change will do the
> job?

I'd assume that regmap conversion will happen later quite likely anyhow.
Most of those devices will have I2C/SPI dual interfaces; or people will
find out that caching registers can reduce the bus load, etc...

That being said, I'll keep Irina's patches for the next merge window.
But we should keep an eye how/if the new function is used. Kernel
growth is an issue at times...

Thanks,

   Wolfram


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