From: shawnguo@kernel.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: imx: Add speed grading check for imx6ul
Date: Fri, 30 Dec 2016 19:57:23 +0800 [thread overview]
Message-ID: <20161230115717.GR6177@dragon> (raw)
In-Reply-To: <1480475098-2037-2-git-send-email-ping.bai@nxp.com>
On Wed, Nov 30, 2016 at 11:04:58AM +0800, Bai Ping wrote:
> On i.MX6UL, it has two type of part, the difference
> is the max ARM frequency that can run at(528MHz/700MHz).
> The part can be identified by part marking for speed grading
> fuse. This patch add speed grading check to disable the unsupported
> OPP dynamically.
>
> Signed-off-by: Bai Ping <ping.bai@nxp.com>
We chose to handle such speed grading thing in IMX platform code with
the assumption that this is a special case for i.MX6Q only. No, I'm not
going to take such code for any other i.MX6 SoCs. Please patch cpufreq
driver to handle the speed grading check.
Shawn
WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Bai Ping <ping.bai-3arQi8VN3Tc@public.gmane.org>
Cc: kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
fabio.estevam-3arQi8VN3Tc@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH 2/2] ARM: imx: Add speed grading check for imx6ul
Date: Fri, 30 Dec 2016 19:57:23 +0800 [thread overview]
Message-ID: <20161230115717.GR6177@dragon> (raw)
In-Reply-To: <1480475098-2037-2-git-send-email-ping.bai-3arQi8VN3Tc@public.gmane.org>
On Wed, Nov 30, 2016 at 11:04:58AM +0800, Bai Ping wrote:
> On i.MX6UL, it has two type of part, the difference
> is the max ARM frequency that can run at(528MHz/700MHz).
> The part can be identified by part marking for speed grading
> fuse. This patch add speed grading check to disable the unsupported
> OPP dynamically.
>
> Signed-off-by: Bai Ping <ping.bai-3arQi8VN3Tc@public.gmane.org>
We chose to handle such speed grading thing in IMX platform code with
the assumption that this is a special case for i.MX6Q only. No, I'm not
going to take such code for any other i.MX6 SoCs. Please patch cpufreq
driver to handle the speed grading check.
Shawn
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next prev parent reply other threads:[~2016-12-30 11:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 3:04 [PATCH 1/2] ARM: dts: imx: Add 696MHz setpoint for imx6ul Bai Ping
2016-11-30 3:04 ` Bai Ping
2016-11-30 3:04 ` [PATCH 2/2] ARM: imx: Add speed grading check " Bai Ping
2016-11-30 3:04 ` Bai Ping
2016-12-30 11:57 ` Shawn Guo [this message]
2016-12-30 11:57 ` Shawn Guo
2017-01-03 1:01 ` Jacky Bai
2017-01-03 1:01 ` Jacky Bai
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