From: Kevin Hilman <khilman@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-amlogic@lists.infradead.org
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply
Date: Tue, 11 Jun 2019 16:32:10 -0700 [thread overview]
Message-ID: <7htvcv3dhh.fsf@baylibre.com> (raw)
In-Reply-To: <20190525190204.7897-1-martin.blumenstingl@googlemail.com>
Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
> EC-100 and Odroid-C1 use a "copy" of the VCCK regulator as "VDDEE"
> regulator. VDDEE supplies the Mali GPU and various other bits within
> the SoC.
>
> The VDDEE regulator is not exclusive to the Mali GPU so it must not
> change it's voltage. The GPU OPP table has a fixed voltage for all
> frequencies of 1.10V. This matches with what u-boot sets on my EC-100
> and Odroid-C1.
>
> Dependencies:
> - compile time: patch #4 depends on my other patch "ARM: meson8b-mxq:
> better support for the TRONFY MXQ" from [0]
> - runtime: we don't want the kernel to change the output of the VDDEE
> regulator to the maximum value. Thus the PWM driver has to be able
> to read the PWM period and duty cycle from u-boot. This is supported
> with my series called "pwm-meson: cleanups and improvements" from [1]
Just FYI... unless I hear otherwise, I'll wait for the PWM cleanups to
land before queuing this series.
Kevin
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
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: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply
Date: Tue, 11 Jun 2019 16:32:10 -0700 [thread overview]
Message-ID: <7htvcv3dhh.fsf@baylibre.com> (raw)
In-Reply-To: <20190525190204.7897-1-martin.blumenstingl@googlemail.com>
Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
> EC-100 and Odroid-C1 use a "copy" of the VCCK regulator as "VDDEE"
> regulator. VDDEE supplies the Mali GPU and various other bits within
> the SoC.
>
> The VDDEE regulator is not exclusive to the Mali GPU so it must not
> change it's voltage. The GPU OPP table has a fixed voltage for all
> frequencies of 1.10V. This matches with what u-boot sets on my EC-100
> and Odroid-C1.
>
> Dependencies:
> - compile time: patch #4 depends on my other patch "ARM: meson8b-mxq:
> better support for the TRONFY MXQ" from [0]
> - runtime: we don't want the kernel to change the output of the VDDEE
> regulator to the maximum value. Thus the PWM driver has to be able
> to read the PWM period and duty cycle from u-boot. This is supported
> with my series called "pwm-meson: cleanups and improvements" from [1]
Just FYI... unless I hear otherwise, I'll wait for the PWM cleanups to
land before queuing this series.
Kevin
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: Re: [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply
Date: Tue, 11 Jun 2019 16:32:10 -0700 [thread overview]
Message-ID: <7htvcv3dhh.fsf@baylibre.com> (raw)
In-Reply-To: <20190525190204.7897-1-martin.blumenstingl@googlemail.com>
Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
> EC-100 and Odroid-C1 use a "copy" of the VCCK regulator as "VDDEE"
> regulator. VDDEE supplies the Mali GPU and various other bits within
> the SoC.
>
> The VDDEE regulator is not exclusive to the Mali GPU so it must not
> change it's voltage. The GPU OPP table has a fixed voltage for all
> frequencies of 1.10V. This matches with what u-boot sets on my EC-100
> and Odroid-C1.
>
> Dependencies:
> - compile time: patch #4 depends on my other patch "ARM: meson8b-mxq:
> better support for the TRONFY MXQ" from [0]
> - runtime: we don't want the kernel to change the output of the VDDEE
> regulator to the maximum value. Thus the PWM driver has to be able
> to read the PWM period and duty cycle from u-boot. This is supported
> with my series called "pwm-meson: cleanups and improvements" from [1]
Just FYI... unless I hear otherwise, I'll wait for the PWM cleanups to
land before queuing this series.
Kevin
next prev parent reply other threads:[~2019-06-11 23:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-25 19:02 [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 1/4] ARM: dts: meson8b: add the PWM_D output pin Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 2/4] ARM: dts: meson8b: ec100: add the VDDEE regulator Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 3/4] ARM: dts: meson8b: odroidc1: " Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` [PATCH 4/4] ARM: dts: meson8b: mxq: " Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-05-25 19:02 ` Martin Blumenstingl
2019-06-11 23:32 ` Kevin Hilman [this message]
2019-06-11 23:32 ` [PATCH 0/4] ARM: dts: meson8b: add VDDEE / mali-supply Kevin Hilman
2019-06-11 23:32 ` Kevin Hilman
2019-06-12 19:09 ` Martin Blumenstingl
2019-06-12 19:09 ` Martin Blumenstingl
2019-06-12 19:09 ` Martin Blumenstingl
2019-06-13 19:43 ` Kevin Hilman
2019-06-13 19:43 ` Kevin Hilman
2019-06-13 19:43 ` Kevin Hilman
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