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Wed, 12 Aug 2026 05:41:44 -0400 (EDT) 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, alchark@flipper.net, chaoyi.chen@rock-chips.com, diederik@cknow-tech.com, 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 Subject: [PATCH v7 03/10] dt-bindings: power: rockchip: allow resets in a power domain node Date: Wed, 12 Aug 2026 21:40:58 +1200 Message-ID: <20260812094106.1391698-4-gahing@gahingwoo.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260812094106.1391698-1-gahing@gahingwoo.com> References: <20260812094106.1391698-1-gahing@gahingwoo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260812_024156_631196_A3D92FCE X-CRM114-Status: UNSURE ( 8.52 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Some domains do not come up in a usable state on their own and need their resets cycled once power is on. The RK3576 NPU domains are one case: without it the first access after power-on takes an async SError. pd-node has no resets property and every nesting level is unevaluatedProperties: false, so describing that in DT is rejected today. Add it alongside clocks. Signed-off-by: Jiaxing Hu --- .../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 b41db576f..f23c1a118 100644 --- a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml +++ b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml @@ -136,6 +136,14 @@ $defs: A number of phandles to clocks that need to be enabled while power domain switches state. + resets: + minItems: 1 + maxItems: 30 + description: | + A number of phandles to resets that need 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. -- 2.43.0