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Message-ID: <20250509074825.1933254-2-jian.hu@amlogic.com>
Date: Fri, 9 May 2025 07:48:19 +0000
From: Jian Hu <jian.hu@...ogic.com>
To: Jerome Brunet <jbrunet@...libre.com>, Xianwei Zhao
<xianwei.zhao@...ogic.com>, Chuan Liu <chuan.liu@...ogic.com>, Neil Armstrong
<neil.armstrong@...aro.org>, Kevin Hilman <khilman@...libre.com>, "Stephen
Boyd" <sboyd@...nel.org>, Michael Turquette <mturquette@...libre.com>,
"Dmitry Rokosov" <ddrokosov@...rdevices.ru>, robh+dt <robh+dt@...nel.org>,
Rob Herring <robh@...nel.org>
CC: Jian Hu <jian.hu@...ogic.com>, devicetree <devicetree@...r.kernel.org>,
linux-clk <linux-clk@...r.kernel.org>, linux-amlogic
<linux-amlogic@...ts.infradead.org>, linux-kernel
<linux-kernel@...r.kernel.org>, linux-arm-kernel
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v3 1/6] dt-bindings: clock: add Amlogic T7 PLL clock controller
Add DT bindings for the PLL clock controller of the Amlogic T7 SoC family.
Signed-off-by: Jian Hu <jian.hu@...ogic.com>
---
.../bindings/clock/amlogic,t7-pll-clkc.yaml | 114 ++++++++++++++++++
.../dt-bindings/clock/amlogic,t7-pll-clkc.h | 56 +++++++++
2 files changed, 170 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/amlogic,t7-pll-clkc.yaml
create mode 100644 include/dt-bindings/clock/amlogic,t7-pll-clkc.h
diff --git a/Documentation/devicetree/bindings/clock/amlogic,t7-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,t7-pll-clkc.yaml
new file mode 100644
index 000000000000..aea3763616a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,t7-pll-clkc.yaml
@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2024 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,t7-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic T7 PLL Clock Control Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@...aro.org>
+ - Jerome Brunet <jbrunet@...libre.com>
+ - Jian Hu <jian.hu@...ogic.com>
+ - Xianwei Zhao <xianwei.zhao@...ogic.com>
+
+properties:
+ compatible:
+ enum:
+ - amlogic,t7-pll-gp0
+ - amlogic,t7-pll-gp1
+ - amlogic,t7-pll-hifi
+ - amlogic,t7-pll-pcie
+ - amlogic,t7-mpll
+ - amlogic,t7-pll-hdmi
+ - amlogic,t7-pll-mclk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ clocks:
+ items:
+ - description: mclk pll input oscillator gate
+ - description: oscillator input clock source for mclk_sel_0
+ - description: fixed input clock source for mclk_sel_0
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: in0
+ - const: in1
+ - const: in2
+ minItems: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: amlogic,t7-pll-mclk
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ clock-names:
+ minItems: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - amlogic,t7-pll-gp0
+ - amlogic,t7-pll-gp1
+ - amlogic,t7-pll-hifi
+ - amlogic,t7-pll-pcie
+ - amlogic,t7-mpll
+ - amlogic,t7-pll-hdmi
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ maxItems: 1
+
+additionalProperties: false
+
+examples:
+ - |
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@...0 {
+ compatible = "amlogic,t7-pll-gp0";
+ reg = <0 0x8080 0 0x20>;
+ clocks = <&scmi_clk 2>;
+ clock-names = "in0";
+ #clock-cells = <1>;
+ };
+
+ clock-controller@...0 {
+ compatible = "amlogic,t7-pll-mclk";
+ reg = <0 0x8300 0 0x18>;
+ clocks = <&scmi_clk 2>,
+ <&xtal>,
+ <&scmi_clk 31>;
+ clock-names = "in0", "in1", "in2";
+ #clock-cells = <1>;
+ };
+ };
diff --git a/include/dt-bindings/clock/amlogic,t7-pll-clkc.h b/include/dt-bindings/clock/amlogic,t7-pll-clkc.h
new file mode 100644
index 000000000000..b0cb5892ac34
--- /dev/null
+++ b/include/dt-bindings/clock/amlogic,t7-pll-clkc.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#ifndef __T7_PLL_CLKC_H
+#define __T7_PLL_CLKC_H
+
+/* GP0 */
+#define CLKID_GP0_PLL_DCO 0
+#define CLKID_GP0_PLL 1
+
+/* GP1 */
+#define CLKID_GP1_PLL_DCO 0
+#define CLKID_GP1_PLL 1
+
+/* HIFI */
+#define CLKID_HIFI_PLL_DCO 0
+#define CLKID_HIFI_PLL 1
+
+/* PCIE */
+#define CLKID_PCIE_PLL_DCO 0
+#define CLKID_PCIE_PLL_DCO_DIV2 1
+#define CLKID_PCIE_PLL_OD 2
+#define CLKID_PCIE_PLL 3
+
+/* MPLL */
+#define CLKID_MPLL_PREDIV 0
+#define CLKID_MPLL0_DIV 1
+#define CLKID_MPLL0 2
+#define CLKID_MPLL1_DIV 3
+#define CLKID_MPLL1 4
+#define CLKID_MPLL2_DIV 5
+#define CLKID_MPLL2 6
+#define CLKID_MPLL3_DIV 7
+#define CLKID_MPLL3 8
+
+/* HDMI */
+#define CLKID_HDMI_PLL_DCO 0
+#define CLKID_HDMI_PLL_OD 1
+#define CLKID_HDMI_PLL 2
+
+/* MCLK */
+#define CLKID_MCLK_PLL_DCO 0
+#define CLKID_MCLK_PRE 1
+#define CLKID_MCLK_PLL 2
+#define CLKID_MCLK_0_SEL 3
+#define CLKID_MCLK_0_DIV2 4
+#define CLKID_MCLK_0_PRE 5
+#define CLKID_MCLK_0 6
+#define CLKID_MCLK_1_SEL 7
+#define CLKID_MCLK_1_DIV2 8
+#define CLKID_MCLK_1_PRE 9
+#define CLKID_MCLK_1 10
+
+#endif /* __T7_PLL_CLKC_H */
--
2.47.1
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