From: Daniel J Blueman <daniel@quora.org>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
linux-arm-msm@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Daniel J Blueman <daniel@quora.org>
Subject: [PATCH] arm64: dts: qcom: hamoa: Set MDP MMCX corners to LOW_SVS per Windows
Date: Sun, 24 May 2026 19:57:03 +0800 [thread overview]
Message-ID: <20260524115704.9442-1-daniel@quora.org> (raw)
On the Lenovo Slim 7x with Qualcomm X1 E80100, the current Windows ACPI
DSDT votes LOW_SVS (0x40) for all 7 MMCX OPP packages in the _SB.PEP0.G0MD
F-state EXIT package:
"FSTATE",
Zero,
Package (...)
{
"EXIT",
Package (0x02)
{
"NPARESOURCE",
Package (0x03)
{
One,
"/arc/client/rail_mmcx",
0x40
}
},
...
},
Apply the same in Linux for power saving opportunity. Validated on Lenovo
Slim7x across daily workloads over 2 weeks with the internal 2944x1840
panel @ 90Hz and a 3840x2160 @ 60Hz monitor over USB-C MST DP alt.
Signed-off-by: Daniel J Blueman <daniel@quora.org>
---
arch/arm64/boot/dts/qcom/hamoa.dtsi | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index 051dee076416..bdd9e7e0768c 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -5657,22 +5657,22 @@ opp-200000000 {
opp-325000000 {
opp-hz = /bits/ 64 <325000000>;
- required-opps = <&rpmhpd_opp_svs>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
opp-375000000 {
opp-hz = /bits/ 64 <375000000>;
- required-opps = <&rpmhpd_opp_svs_l1>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
opp-514000000 {
opp-hz = /bits/ 64 <514000000>;
- required-opps = <&rpmhpd_opp_nom>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
opp-575000000 {
opp-hz = /bits/ 64 <575000000>;
- required-opps = <&rpmhpd_opp_nom_l1>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
};
};
--
2.53.0
next reply other threads:[~2026-05-24 11:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-24 11:57 Daniel J Blueman [this message]
2026-05-24 12:10 ` [PATCH] arm64: dts: qcom: hamoa: Set MDP MMCX corners to LOW_SVS per Windows sashiko-bot
2026-05-25 13:05 ` Konrad Dybcio
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260524115704.9442-1-daniel@quora.org \
--to=daniel@quora.org \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=konradybcio@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox