From: Douglas Anderson <dianders@chromium.org>
To: Heiko Stuebner <heiko@sntech.de>,
Elaine Zhang <zhangqing@rock-chips.com>
Cc: dbasehore@chromium.org, amstan@chromium.org,
linux-rockchip@lists.infradead.org, briannorris@chromium.org,
mka@chromium.org, ryandcase@chromium.org,
Chris Zhong <zyw@rock-chips.com>,
Douglas Anderson <dianders@chromium.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron
Date: Thu, 11 Apr 2019 16:21:57 -0700 [thread overview]
Message-ID: <20190411232157.55125-5-dianders@chromium.org> (raw)
In-Reply-To: <20190411232157.55125-1-dianders@chromium.org>
At some point long long ago the downstream GPU driver would crash if
we turned the GPU off during suspend. For some context you can see:
https://chromium-review.googlesource.com/#/c/215780/5..6/arch/arm/boot/dts/rk3288-pinky-rev2.dts
At some point in time not too long after that got fixed.
It's unclear why the GPU is left enabled during suspend on the
mainline kernel. Everything seems fine if I turn this off, so let's
do it.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---
arch/arm/boot/dts/rk3288-veyron.dtsi | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 279d7f4ecce0..1252522392c7 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -217,8 +217,7 @@
regulator-max-microvolt = <1250000>;
regulator-ramp-delay = <6001>;
regulator-state-mem {
- regulator-on-in-suspend;
- regulator-suspend-microvolt = <1000000>;
+ regulator-off-in-suspend;
};
};
--
2.21.0.392.gf8f6787159e-goog
next prev parent reply other threads:[~2019-04-11 23:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 23:21 [PATCH 1/5] clk: rockchip: Turn on "aclk_dmac1" for suspend Douglas Anderson
2019-04-11 23:21 ` [PATCH 2/5] ARM: rockchip: pm: Mark init functions __init Douglas Anderson
2019-04-12 11:16 ` Heiko Stübner
2019-04-11 23:21 ` [PATCH 3/5] ARM: dts: rockchip: Add DDR retention/poweroff to rk3288-veyron hogs Douglas Anderson
2019-04-12 11:16 ` Heiko Stübner
2019-04-11 23:21 ` [PATCH 4/5] ARM: dts: rockchip: vcc33_ccd off in suspend for rk3288-veyron-chromebook Douglas Anderson
2019-04-12 1:53 ` elaine.zhang
2019-04-12 11:16 ` Heiko Stübner
2019-04-11 23:21 ` Douglas Anderson [this message]
2019-04-12 1:55 ` [PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron elaine.zhang
2019-04-12 11:17 ` Heiko Stübner
2019-04-12 1:56 ` [PATCH 1/5] clk: rockchip: Turn on "aclk_dmac1" for suspend elaine.zhang
2019-04-12 10:06 ` Heiko Stübner
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