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From: Eric Anholt <eric@anholt.net>
To: Eduardo Valentin <edubezval@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org,
	Florian Fainelli <f.fainelli@gmail.com>,
	Russell King <linux@arm.linux.org.uk>,
	Pawel Moll <pawel.moll@arm.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-pm@vger.kernel.org, Lee Jones <lee@kernel.org>,
	Will Deacon <will.deacon@arm.com>,
	Rob Herring <robh+dt@kernel.org>,
	linux-rpi-kernel@lists.infradead.org,
	Martin Sperl <kernel@martin.sperl.org>,
	Zhang Rui <rui.zhang@intel.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V8 2/6] thermal: bcm2835: add thermal driver for bcm2835 soc
Date: Tue, 29 Nov 2016 14:12:46 -0800	[thread overview]
Message-ID: <87lgw2lyu9.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <20161129013436.GA3080@localhost.localdomain>


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Eduardo Valentin <edubezval@gmail.com> writes:

> Hello Eric, Martin,
>
> On Mon, Nov 28, 2016 at 12:30:38PM -0800, Eric Anholt wrote:
>> Either the device was initialized by the firmware before handing off to
>> ARM (today's firmware) or it never will be (potential future firmware).
>
> And do you have a way to check if the firmware has the initialization
> code or not? By firmware version, for example. Or even, chip version,
> maybe?

We would know if it's not present because the register would be in its
power-on reset state, which is what the code is checking for.

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WARNING: multiple messages have this Message-ID (diff)
From: eric@anholt.net (Eric Anholt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V8 2/6] thermal: bcm2835: add thermal driver for bcm2835 soc
Date: Tue, 29 Nov 2016 14:12:46 -0800	[thread overview]
Message-ID: <87lgw2lyu9.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <20161129013436.GA3080@localhost.localdomain>

Eduardo Valentin <edubezval@gmail.com> writes:

> Hello Eric, Martin,
>
> On Mon, Nov 28, 2016 at 12:30:38PM -0800, Eric Anholt wrote:
>> Either the device was initialized by the firmware before handing off to
>> ARM (today's firmware) or it never will be (potential future firmware).
>
> And do you have a way to check if the firmware has the initialization
> code or not? By firmware version, for example. Or even, chip version,
> maybe?

We would know if it's not present because the register would be in its
power-on reset state, which is what the code is checking for.
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  reply	other threads:[~2016-11-29 22:12 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-02 10:18 [PATCH V8 0/6] thermal: bcm2835: add thermal driver kernel
2016-11-02 10:18 ` kernel at martin.sperl.org
2016-11-02 10:18 ` [PATCH V8 1/6] dt: bindings: add thermal device driver for bcm2835 kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
2016-11-02 10:18 ` [PATCH V8 2/6] thermal: bcm2835: add thermal driver for bcm2835 soc kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
     [not found]   ` <1478081906-12009-3-git-send-email-kernel-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2016-11-15 12:29     ` Zhang Rui
2016-11-15 12:29       ` Zhang Rui
2016-11-17  2:11   ` Eduardo Valentin
2016-11-17  2:11     ` Eduardo Valentin
2016-11-17  9:51     ` Martin Sperl
2016-11-17  9:51       ` Martin Sperl
2016-11-17 15:10       ` Eduardo Valentin
2016-11-17 15:10         ` Eduardo Valentin
     [not found]         ` <20161117151019.GA3115-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2016-11-18  8:32           ` kernel-TqfNSX0MhmxHKSADF0wUEw
2016-11-18  8:32             ` kernel at martin.sperl.org
     [not found]             ` <7957B3CC-0E18-4B27-82EB-EF88B7695E28-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2016-11-19  4:22               ` Eduardo Valentin
2016-11-19  4:22                 ` Eduardo Valentin
     [not found]                 ` <20161119042224.GA25063-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2016-11-22 14:28                   ` Martin Sperl
2016-11-22 14:28                     ` Martin Sperl
     [not found]                     ` <28F93ABE-8210-4389-AE77-4D5E830E669B-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2016-11-25  5:20                       ` Eduardo Valentin
2016-11-25  5:20                         ` Eduardo Valentin
     [not found]                         ` <20161125052008.GA8342-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2016-11-28 20:30                           ` Eric Anholt
2016-11-28 20:30                             ` Eric Anholt
2016-11-29  1:34                             ` Eduardo Valentin
2016-11-29  1:34                               ` Eduardo Valentin
2016-11-29 22:12                               ` Eric Anholt [this message]
2016-11-29 22:12                                 ` Eric Anholt
2016-11-30  6:39                                 ` Eduardo Valentin
2016-11-30  6:39                                   ` Eduardo Valentin
2016-11-02 10:18 ` [PATCH V8 3/6] ARM: bcm2835: dts: add thermal node to device-tree of bcm283x kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
2016-11-02 10:18 ` [PATCH V8 4/6] ARM64: bcm2835: dts: add thermal node to device-tree of bcm2837 kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
2016-11-02 10:18 ` [PATCH V8 5/6] ARM: bcm2835: add thermal driver to default_config kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
2016-11-02 10:18 ` [PATCH V8 6/6] ARM64: " kernel
2016-11-02 10:18   ` kernel at martin.sperl.org
2016-11-11 17:01 ` [PATCH V8 0/6] thermal: bcm2835: add thermal driver Eric Anholt
2016-11-11 17:01   ` Eric Anholt
2016-11-15 12:50   ` Zhang Rui
2016-11-15 12:50     ` Zhang Rui
     [not found]     ` <1479214212.2224.24.camel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-11-16 21:57       ` Eric Anholt
2016-11-16 21:57         ` Eric Anholt
2016-11-17  2:21 ` Eduardo Valentin
2016-11-17  2:21   ` Eduardo Valentin

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