From: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
To: Tony Lindgren <tony@atomide.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
lee.jones@linaro.org, sameo@linux.intel.com,
linux-gpio@vger.kernel.org,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
linux-kernel@vger.kernel.org
Subject: Re: Use of pinctrl-single for external device over I2C
Date: Thu, 25 Jun 2015 11:16:50 +0530 [thread overview]
Message-ID: <558B95CA.9070105@linaro.org> (raw)
In-Reply-To: <20150625043838.GK4156@atomide.com>
On Thursday 25 June 2015 10:08 AM, Tony Lindgren wrote:
> * Vaibhav Hiremath <vaibhav.hiremath@linaro.org> [150624 10:12]:
>>
>> I do not like this, as this is not HW feature, so DT may not be right
>> approach.
>>
>> So I will dig more from either runtime or Compile time option to use
>> regmap_ Vs raw read/writes.
>
> Can't you just check if the pinctrl node has compatible = "syscon"
> property?
>
> A compile time option won't work for sure. I don't know what you
> would check at runtime as you do not know what the bus is behind
> syscon.
>
Although, I haven't gone through syscon, but not sure whether syscon
would be useful.
As you rightly stated, we need to know the bus behind regmap.
Thanks,
Vaibhav
next prev parent reply other threads:[~2015-06-25 5:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-23 10:55 Use of pinctrl-single for external device over I2C Vaibhav Hiremath
2015-06-24 12:04 ` Vaibhav Hiremath
2015-06-24 13:33 ` Tony Lindgren
2015-06-24 17:10 ` Vaibhav Hiremath
2015-06-25 4:38 ` Tony Lindgren
2015-06-25 5:46 ` Vaibhav Hiremath [this message]
2015-06-30 7:46 ` Vaibhav Hiremath
2015-06-30 7:58 ` Vaibhav Hiremath
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