linux-kernel - [PATCH v1 1/3] dt-bindings: clock: Add StarFive JH7110 PLL clock generator

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Message-ID: <20230221141147.303642-2-xingyu.wu@starfivetech.com>
Date:   Tue, 21 Feb 2023 22:11:45 +0800
From:   Xingyu Wu <xingyu.wu@...rfivetech.com>
To:     <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        "Michael Turquette" <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Emil Renner Berthing <kernel@...il.dk>
CC:     Rob Herring <robh+dt@...nel.org>, Conor Dooley <conor@...nel.org>,
        "Paul Walmsley" <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Hal Feng <hal.feng@...rfivetech.com>,
        Xingyu Wu <xingyu.wu@...rfivetech.com>,
        <linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>
Subject: [PATCH v1 1/3] dt-bindings: clock: Add StarFive JH7110 PLL clock generator

Add bindings for the PLL clock generator on the JH7110 RISC-V SoC.

Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>
---
 .../bindings/clock/starfive,jh7110-pll.yaml   | 45 +++++++++++++++++++
 .../dt-bindings/clock/starfive,jh7110-crg.h   | 12 ++---
 2 files changed, 52 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
new file mode 100644
index 000000000000..8fd18e6c2e9b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-pll.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 PLL Clock Generator
+
+maintainers:
+  - Xingyu Wu <xingyu.wu@...rfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-pll
+
+  clocks:
+    maxItems: 1
+      - description: Main Oscillator (24 MHz)
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+  starfive,sysreg:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      the phandle to System Register Controller syscon node.
+
+required:
+  - compatible
+  - clocks
+  - '#clock-cells'
+  - starfive,sysreg
+
+additionalProperties: false
+
+examples:
+  - |
+    pllclk: pll-clock-controller {
+      compatible = "starfive,jh7110-pll";
+      clocks = <&osc>;
+      #clock-cells = <1>;
+      starfive,sysreg = <&sys_syscon>;
+    };
diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
index 5e4f21ca0642..086a6ddcf380 100644
--- a/include/dt-bindings/clock/starfive,jh7110-crg.h
+++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
@@ -6,6 +6,12 @@
 #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
 #define __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
 
+/* PLL clocks */
+#define JH7110_CLK_PLL0_OUT			0
+#define JH7110_CLK_PLL1_OUT			1
+#define JH7110_CLK_PLL2_OUT			2
+#define JH7110_PLLCLK_END			3
+
 /* SYSCRG clocks */
 #define JH7110_SYSCLK_CPU_ROOT			0
 #define JH7110_SYSCLK_CPU_CORE			1
@@ -198,11 +204,7 @@
 #define JH7110_SYSCLK_TDM_TDM_INV		188
 #define JH7110_SYSCLK_JTAG_CERTIFICATION_TRNG	189
 
-#define JH7110_SYSCLK_PLL0_OUT			190
-#define JH7110_SYSCLK_PLL1_OUT			191
-#define JH7110_SYSCLK_PLL2_OUT			192
-
-#define JH7110_SYSCLK_END			193
+#define JH7110_SYSCLK_END			190
 
 /* AONCRG clocks */
 #define JH7110_AONCLK_OSC_DIV4			0
-- 
2.25.1