From: Marco Schirrmeister <mschirrmeister@gmail.com>
To: heiko@sntech.de, ulf.hansson@linaro.org
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
linux-rockchip@lists.infradead.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Marco Schirrmeister <mschirrmeister@gmail.com>
Subject: [PATCH v1 1/3] dt-bindings: mmc: rockchip-dw-mshc: add rockchip,disable-runtime-pm
Date: Sat, 10 Jan 2026 02:07:13 +0100 [thread overview]
Message-ID: <20260110010715.1610159-2-mschirrmeister@gmail.com> (raw)
In-Reply-To: <20260110010715.1610159-1-mschirrmeister@gmail.com>
Add a new 'rockchip,disable-runtime-pm' property to allow boards to
inhibit runtime power management. This is required for boards like the
NanoPi R76S where the bus timing becomes unstable if the controller
is runtime-suspended during idle periods.
Signed-off-by: Marco Schirrmeister <mschirrmeister@gmail.com>
---
.../devicetree/bindings/mmc/rockchip-dw-mshc.yaml | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
index acb9fb9a92cd..41f2644ca2ef 100644
--- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
+++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
@@ -100,6 +100,14 @@ properties:
If not specified, the host will do tuning for 360 times,
namely tuning for each degree.
+ rockchip,disable-runtime-pm:
+ type: boolean
+ description:
+ Inhibit runtime power management. This is required for boards
+ where the bus timing becomes unstable if the controller is
+ runtime-suspended.
+
+
required:
- compatible
- reg
--
2.52.0
next prev parent reply other threads:[~2026-01-10 1:07 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-10 1:07 [PATCH v1 0/3] mmc: dw_mmc-rockchip: Add stability quirk for NanoPi R76S Marco Schirrmeister
2026-01-10 1:07 ` Marco Schirrmeister [this message]
2026-01-10 2:25 ` [PATCH v1 1/3] dt-bindings: mmc: rockchip-dw-mshc: add rockchip,disable-runtime-pm Rob Herring (Arm)
2026-01-11 9:41 ` Krzysztof Kozlowski
2026-01-11 23:51 ` Marco Schirrmeister
2026-01-16 9:43 ` Heiko Stübner
2026-01-16 10:20 ` Krzysztof Kozlowski
2026-01-10 1:07 ` [PATCH v1 2/3] mmc: host: dw_mmc-rockchip: add rockchip,disable-runtime-pm quirk Marco Schirrmeister
2026-01-10 1:07 ` [PATCH v1 3/3] arm64: dts: rockchip: add stability quirk to NanoPi R76S Marco Schirrmeister
2026-01-11 9:42 ` Krzysztof Kozlowski
2026-01-12 1:32 ` [PATCH v1 0/3] mmc: dw_mmc-rockchip: Add stability quirk for " Shawn Lin
2026-01-12 3:56 ` Shawn Lin
2026-01-12 8:29 ` Chaoyi Chen
2026-01-12 8:58 ` Shawn Lin
2026-01-12 19:09 ` Marco Schirrmeister
2026-01-14 8:08 ` Shawn Lin
2026-01-14 19:51 ` Marco Schirrmeister
2026-01-15 0:25 ` Shawn Lin
2026-01-15 19:39 ` Marco Schirrmeister
2026-01-16 0:31 ` Shawn Lin
2026-01-12 19:04 ` Marco Schirrmeister
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