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Sun, 1 Nov 2026 03:24:23 -0500 (EST) From: Jiaxing Hu To: tomeu@tomeuvizoso.net, heiko@sntech.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, ulfh@kernel.org, p.zabel@pengutronix.de, ogabbay@kernel.org, zhangqing@rock-chips.com Cc: royalnet026@gmail.com, abel.vesa@oss.qualcomm.com, sebastian.reichel@collabora.com, sidong.yang@furiosa.ai, u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com, diederik@cknow-tech.com, alchark@flipper.net, leonard@lausen.nl, jeff.hugo@oss.qualcomm.com, rfoss@kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, iommu@lists.linux.dev, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jiaxing Hu , Conor Dooley Subject: [PATCH v15 07/15] dt-bindings: power: rockchip: allow resets in a power domain node Date: Sun, 1 Nov 2026 21:22:59 +1300 Message-ID: <20261101082307.151957-8-gahing@gahingwoo.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261101082307.151957-1-gahing@gahingwoo.com> References: <20261101082307.151957-1-gahing@gahingwoo.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Some domains need a reset cycled once power is on. The RK3576 NPU domains are one: without it the first access after power-on takes an async SError. Signed-off-by: Jiaxing Hu Acked-by: Conor Dooley Reviewed-by: Heiko Stuebner --- .../bindings/power/rockchip,power-controller.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml index b41db576f95d..83741f048716 100644 --- a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml +++ b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml @@ -136,6 +136,13 @@ $defs: A number of phandles to clocks that need to be enabled while power domain switches state. + resets: + maxItems: 1 + description: + A phandle to a reset that needs to be cycled once the power domain has + been switched on, for domains whose logic does not come up in a usable + state by itself. + domain-supply: description: domain regulator supply. @@ -216,6 +223,7 @@ examples: reg = ; clocks = <&cru ACLK_IEP>, <&cru HCLK_IEP>; + resets = <&cru SRST_A_IEP>; pm_qos = <&qos_iep>; #power-domain-cells = <0>; }; -- 2.43.0