From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 8/9] ARM: dts: sun7i: bananapi-m1-plus: Add PMIC regulators and OPPs for cpufreq
Date: Sat, 9 Jul 2016 10:18:27 +0200 [thread overview]
Message-ID: <20160709081827.GF4522@lukather> (raw)
In-Reply-To: <1467796250-22010-9-git-send-email-wens@csie.org>
Hi,
On Wed, Jul 06, 2016 at 05:10:49PM +0800, Chen-Yu Tsai wrote:
> The Bananapi M1+, like other Allwinner A20 based boards, uses the AXP209
> PMIC to supply its power. The vendor FEX file's DVFS table suggests the
> board's CPU power rail has a voltage drop of 25 ~ 50 mV.
>
> Add the PMIC regulator nodes and copy the DVFS table from the FEX file.
>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
> arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts | 48 ++++++++++++++++++++++--
> 1 file changed, 44 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
> index ba5bca0fe997..7bb418bd1b6e 100644
> --- a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
> @@ -105,6 +105,22 @@
> status = "okay";
> };
>
> +&cpu0 {
> + cpu-supply = <®_dcdc2>;
> +
> + /* The custom DVFS table suggests a voltage drop of 25 ~ 50 mV */
> + operating-points = <
> + /* kHz uV */
> + 1080000 1450000
> + 912000 1425000
> + 864000 1350000
> + 720000 1250000
> + 528000 1150000
> + 312000 1100000
> + 144000 1050000
> + >;
> +};
> +
We've always tried to not use all the non-sense OPPs coming from the
FEX files. Have you experienced any issues with the default ones?
The other patches have been queued either for 4.8 as fixes, or 4.9.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2016-07-09 8:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-06 9:10 [PATCH 0/9] ARM: dts: sun7i: BPI-M1+ and Lamobo-R1 fixes Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 1/9] ARM: dts: sun7i: lamobo-r1: Fix USB-based WiFi module power Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 2/9] ARM: dts: sun7i: lamobo-r1: Remove usb1 vbus regulator Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 3/9] ARM: dts: sun7i: lamobo-r1: Fix GPIO flags in reg_ahci_5v Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 4/9] ARM: dts: sun7i: lamobo-r1: Enable audio codec Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 5/9] ARM: dts: sun7i: bananapi-m1-plus: Reindent whole file using tabs Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 6/9] ARM: dts: sun7i: bananapi-m1-plus: Unify suffix for board specific labels Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 7/9] ARM: dts: sun7i: bananapi-m1-plus: red LED is power LED Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 8/9] ARM: dts: sun7i: bananapi-m1-plus: Add PMIC regulators and OPPs for cpufreq Chen-Yu Tsai
2016-07-09 8:18 ` Maxime Ripard [this message]
2016-07-12 2:12 ` Chen-Yu Tsai
2016-07-06 9:10 ` [PATCH 9/9] ARM: dts: sun7i: bananapi-m1-plus: Enable USB OTG Chen-Yu Tsai
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