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Thu, 24 Sep 2026 06:23:20 -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, 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, 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 v14 08/15] dt-bindings: iommu: rockchip: describe the RK3576 NPU MMU Date: Thu, 24 Sep 2026 22:21:28 +1200 Message-ID: <20260924102135.92217-9-gahing@gahingwoo.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924102135.92217-1-gahing@gahingwoo.com> References: <20260924102135.92217-1-gahing@gahingwoo.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260924_032330_720432_1D1BAE9B X-CRM114-Status: UNSURE ( 6.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org The RK3576 NPU MMUs are rk3568-iommu compatible but take five clocks instead of two. Give them their own compatible and pin both clock counts in allOf. Signed-off-by: Jiaxing Hu Acked-by: Conor Dooley --- .../bindings/iommu/rockchip,iommu.yaml | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml index 6ce41d11f..83d7e7c8e 100644 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -26,6 +26,7 @@ properties: - items: - enum: - rockchip,rk3576-iommu + - rockchip,rk3576-npu-iommu - rockchip,rk3588-iommu - const: rockchip,rk3568-iommu @@ -42,14 +43,22 @@ properties: minItems: 1 clocks: + minItems: 2 items: - description: Core clock - description: Interface clock + - description: Compute clock + - description: Convolution buffer core clock + - description: Convolution buffer interface clock clock-names: + minItems: 2 items: - const: aclk - const: iface + - const: npu + - const: aclk_cbuf + - const: hclk_cbuf "#iommu-cells": const: 0 @@ -72,6 +81,25 @@ required: - clock-names - "#iommu-cells" +allOf: + - if: + properties: + compatible: + contains: + const: rockchip,rk3576-npu-iommu + then: + properties: + clocks: + minItems: 5 + clock-names: + minItems: 5 + else: + properties: + clocks: + maxItems: 2 + clock-names: + maxItems: 2 + additionalProperties: false examples: -- 2.43.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip