linux-kernel - [PATCHv1 01/19] dt-binding: clock: Document rockchip,rk3588-cru bindings

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Message-Id: <20220422170920.401914-2-sebastian.reichel@collabora.com>
Date:   Fri, 22 Apr 2022 19:09:02 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...ts.collabora.co.uk,
        Elaine Zhang <zhangqing@...k-chips.com>, kernel@...labora.com,
        Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCHv1 01/19] dt-binding: clock: Document rockchip,rk3588-cru bindings

From: Elaine Zhang <zhangqing@...k-chips.com>

Document the device tree bindings of the rockchip Rk3588 SoC
clock driver.

Signed-off-by: Elaine Zhang <zhangqing@...k-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
 .../bindings/clock/rockchip,rk3588-cru.yaml   | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml

diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml
new file mode 100644
index 000000000000..dec2ae8c7970
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3588-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROCKCHIP rk3588 Family Clock Control Module Binding
+
+maintainers:
+  - Elaine Zhang <zhangqing@...k-chips.com>
+  - Heiko Stuebner <heiko@...ech.de>
+
+description: |
+  The RK3588 clock controller generates the clock and also implements a
+  reset controller for SoC peripherals.
+  (examples: provide SCLK_UART2\PCLK_UART2 and SRST_P_UART2\SRST_S_UART2 for UART module)
+  Each clock is assigned an identifier and client nodes can use this identifier
+  to specify the clock which they consume. All available clocks are defined as
+  preprocessor macros in the dt-bindings/clock/rk3588-cru.h headers and can be
+  used in device tree sources.
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3588-cru
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  clocks: true
+
+  assigned-clocks:
+    minItems: 1
+
+  assigned-clock-parents:
+    minItems: 1
+
+  assigned-clock-rates:
+    minItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  # Clock Control Module node:
+  - |
+    cru: clock-controller@...c0000 {
+      compatible = "rockchip,rk3588-cru";
+      reg = <0xfd7c0000 0x5c000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };
-- 
2.35.1