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From: khilman@baylibre.com (Kevin Hilman)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH] ARM: multi_v7_defconfig: switch CONFIG_PWM_MESON to built-in
Date: Wed, 28 Nov 2018 16:30:19 -0800	[thread overview]
Message-ID: <7hh8g0d8tg.fsf@baylibre.com> (raw)
In-Reply-To: <20181114230554.4968-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Some Meson8b boards (Odroid-C1, EC-100) use a PWM regulator which is the
> voltage supply of the CPU cores (this regulator is typically called
> "VCCK").
> Now that we are preparing support for CPU frequency scaling on Meson8,
> Meson8b and Meson8m2 we should build the pwm-meson driver into the
> kernel so we can configure the CPU voltage early in the boot process.

Can you explain a little more why the configuration of CPU voltage
cannot wait a bit so this could be properly probed?

Kevin

WARNING: multiple messages have this Message-ID (diff)
From: khilman@baylibre.com (Kevin Hilman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: multi_v7_defconfig: switch CONFIG_PWM_MESON to built-in
Date: Wed, 28 Nov 2018 16:30:19 -0800	[thread overview]
Message-ID: <7hh8g0d8tg.fsf@baylibre.com> (raw)
In-Reply-To: <20181114230554.4968-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Some Meson8b boards (Odroid-C1, EC-100) use a PWM regulator which is the
> voltage supply of the CPU cores (this regulator is typically called
> "VCCK").
> Now that we are preparing support for CPU frequency scaling on Meson8,
> Meson8b and Meson8m2 we should build the pwm-meson driver into the
> kernel so we can configure the CPU voltage early in the boot process.

Can you explain a little more why the configuration of CPU voltage
cannot wait a bit so this could be properly probed?

Kevin

WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux@armlinux.org.uk,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: Re: [PATCH] ARM: multi_v7_defconfig: switch CONFIG_PWM_MESON to built-in
Date: Wed, 28 Nov 2018 16:30:19 -0800	[thread overview]
Message-ID: <7hh8g0d8tg.fsf@baylibre.com> (raw)
In-Reply-To: <20181114230554.4968-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Some Meson8b boards (Odroid-C1, EC-100) use a PWM regulator which is the
> voltage supply of the CPU cores (this regulator is typically called
> "VCCK").
> Now that we are preparing support for CPU frequency scaling on Meson8,
> Meson8b and Meson8m2 we should build the pwm-meson driver into the
> kernel so we can configure the CPU voltage early in the boot process.

Can you explain a little more why the configuration of CPU voltage
cannot wait a bit so this could be properly probed?

Kevin

  reply	other threads:[~2018-11-29  0:30 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-14 23:05 [PATCH] ARM: multi_v7_defconfig: switch CONFIG_PWM_MESON to built-in Martin Blumenstingl
2018-11-14 23:05 ` Martin Blumenstingl
2018-11-14 23:05 ` Martin Blumenstingl
2018-11-29  0:30 ` Kevin Hilman [this message]
2018-11-29  0:30   ` Kevin Hilman
2018-11-29  0:30   ` Kevin Hilman
2018-11-29 22:35   ` Martin Blumenstingl
2018-11-29 22:35     ` Martin Blumenstingl
2018-11-29 22:35     ` Martin Blumenstingl
2018-11-29 23:28     ` Kevin Hilman
2018-11-29 23:28       ` Kevin Hilman
2018-11-29 23:28       ` Kevin Hilman
2018-11-29 23:37       ` Martin Blumenstingl
2018-11-29 23:37         ` Martin Blumenstingl
2018-11-29 23:37         ` Martin Blumenstingl
2018-11-30  0:51         ` Kevin Hilman
2018-11-30  0:51           ` Kevin Hilman
2018-11-30  0:51           ` Kevin Hilman

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