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Message-Id: <20250602143612.943516-1-Frank.Li@nxp.com>
Date: Mon, 2 Jun 2025 10:36:10 -0400
From: Frank Li <Frank.Li@....com>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Vinod Koul <vkoul@...nel.org>,
Lee Jones <lee@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Vladimir Zapolskiy <vz@...ia.com>,
linux-clk@...r.kernel.org (open list:COMMON CLK FRAMEWORK),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
linux-kernel@...r.kernel.org (open list),
dmaengine@...r.kernel.org (open list:DMA GENERIC OFFLOAD ENGINE SUBSYSTEM),
linux-phy@...ts.infradead.org (open list:GENERIC PHY FRAMEWORK),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/LPC18XX ARCHITECTURE)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] dt-bindings: mfd: convert lpc1850-creg-clk.txt pc1850-dmamux.txt phy-lpc18xx-usb-otg.txt to yaml format
Combine lpc1850-creg-clk.txt pc1850-dmamux.txt and phy-lpc18xx-usb-otg.txt
to one mfd yaml file.
Additional changes:
- remove label in example.
- remove dmamux consumer in example.
- remove clock consumer in example.
Signed-off-by: Frank Li <Frank.Li@....com>
---
.../bindings/clock/lpc1850-creg-clk.txt | 52 ------
.../bindings/dma/lpc1850-dmamux.txt | 54 -------
.../bindings/mfd/nxp,lpc1850-creg.yaml | 148 ++++++++++++++++++
.../bindings/phy/phy-lpc18xx-usb-otg.txt | 26 ---
4 files changed, 148 insertions(+), 132 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
delete mode 100644 Documentation/devicetree/bindings/dma/lpc1850-dmamux.txt
create mode 100644 Documentation/devicetree/bindings/mfd/nxp,lpc1850-creg.yaml
delete mode 100644 Documentation/devicetree/bindings/phy/phy-lpc18xx-usb-otg.txt
diff --git a/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt b/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
deleted file mode 100644
index b6b2547a3d17a..0000000000000
--- a/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* NXP LPC1850 CREG clocks
-
-The NXP LPC18xx/43xx CREG (Configuration Registers) block contains
-control registers for two low speed clocks. One of the clocks is a
-32 kHz oscillator driver with power up/down and clock gating. Next
-is a fixed divider that creates a 1 kHz clock from the 32 kHz osc.
-
-These clocks are used by the RTC and the Event Router peripherals.
-The 32 kHz can also be routed to other peripherals to enable low
-power modes.
-
-This binding uses the common clock binding:
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible:
- Should be "nxp,lpc1850-creg-clk"
-- #clock-cells:
- Shall have value <1>.
-- clocks:
- Shall contain a phandle to the fixed 32 kHz crystal.
-
-The creg-clk node must be a child of the creg syscon node.
-
-The following clocks are available from the clock node.
-
-Clock ID Name
- 0 1 kHz clock
- 1 32 kHz Oscillator
-
-Example:
-soc {
- creg: syscon@...43000 {
- compatible = "nxp,lpc1850-creg", "syscon", "simple-mfd";
- reg = <0x40043000 0x1000>;
-
- creg_clk: clock-controller {
- compatible = "nxp,lpc1850-creg-clk";
- clocks = <&xtal32>;
- #clock-cells = <1>;
- };
-
- ...
- };
-
- rtc: rtc@...46000 {
- ...
- clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
- clock-names = "rtc", "reg";
- ...
- };
-};
diff --git a/Documentation/devicetree/bindings/dma/lpc1850-dmamux.txt b/Documentation/devicetree/bindings/dma/lpc1850-dmamux.txt
deleted file mode 100644
index 87740adb29956..0000000000000
--- a/Documentation/devicetree/bindings/dma/lpc1850-dmamux.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-NXP LPC18xx/43xx DMA MUX (DMA request router)
-
-Required properties:
-- compatible: "nxp,lpc1850-dmamux"
-- reg: Memory map for accessing module
-- #dma-cells: Should be set to <3>.
- * 1st cell contain the master dma request signal
- * 2nd cell contain the mux value (0-3) for the peripheral
- * 3rd cell contain either 1 or 2 depending on the AHB
- master used.
-- dma-requests: Number of DMA requests for the mux
-- dma-masters: phandle pointing to the DMA controller
-
-The DMA controller node need to have the following poroperties:
-- dma-requests: Number of DMA requests the controller can handle
-
-Example:
-
-dmac: dma@...02000 {
- compatible = "nxp,lpc1850-gpdma", "arm,pl080", "arm,primecell";
- arm,primecell-periphid = <0x00041080>;
- reg = <0x40002000 0x1000>;
- interrupts = <2>;
- clocks = <&ccu1 CLK_CPU_DMA>;
- clock-names = "apb_pclk";
- #dma-cells = <2>;
- dma-channels = <8>;
- dma-requests = <16>;
- lli-bus-interface-ahb1;
- lli-bus-interface-ahb2;
- mem-bus-interface-ahb1;
- mem-bus-interface-ahb2;
- memcpy-burst-size = <256>;
- memcpy-bus-width = <32>;
-};
-
-dmamux: dma-mux {
- compatible = "nxp,lpc1850-dmamux";
- #dma-cells = <3>;
- dma-requests = <64>;
- dma-masters = <&dmac>;
-};
-
-uart0: serial@...81000 {
- compatible = "nxp,lpc1850-uart", "ns16550a";
- reg = <0x40081000 0x1000>;
- reg-shift = <2>;
- interrupts = <24>;
- clocks = <&ccu2 CLK_APB0_UART0>, <&ccu1 CLK_CPU_UART0>;
- clock-names = "uartclk", "reg";
- dmas = <&dmamux 1 1 2
- &dmamux 2 1 2>;
- dma-names = "tx", "rx";
-};
diff --git a/Documentation/devicetree/bindings/mfd/nxp,lpc1850-creg.yaml b/Documentation/devicetree/bindings/mfd/nxp,lpc1850-creg.yaml
new file mode 100644
index 0000000000000..89b4892e9ca71
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/nxp,lpc1850-creg.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/nxp,lpc1850-creg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: The NXP LPC18xx/43xx CREG (Configuration Registers) block
+
+maintainers:
+ - Frank Li <Frank.Li@....com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - nxp,lpc1850-creg
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clock-controller:
+ type: object
+ description:
+ The NXP LPC18xx/43xx CREG (Configuration Registers) block contains
+ control registers for two low speed clocks. One of the clocks is a
+ 32 kHz oscillator driver with power up/down and clock gating. Next
+ is a fixed divider that creates a 1 kHz clock from the 32 kHz osc.
+
+ These clocks are used by the RTC and the Event Router peripherals.
+ The 32 kHz can also be routed to other peripherals to enable low
+ power modes.
+
+ properties:
+ compatible:
+ const: nxp,lpc1850-creg-clk
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description: |
+ 0 1 kHz clock
+ 1 32 kHz Oscillator
+
+ required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+ additionalProperties: false
+
+ phy:
+ type: object
+ description: the internal USB OTG PHY in NXP LPC18xx and LPC43xx SoCs
+ properties:
+ compatible:
+ const: nxp,lpc1850-usb-otg-phy
+
+ clocks:
+ maxItems: 1
+
+ '#phy-cells':
+ const: 0
+
+ required:
+ - compatible
+ - clocks
+ - '#phy-cells'
+
+ additionalProperties: false
+
+ dma-mux:
+ type: object
+ description: NXP LPC18xx/43xx DMA MUX (DMA request router)
+ properties:
+ compatible:
+ const: nxp,lpc1850-dmamux
+
+ '#dma-cells':
+ const: 3
+ description: |
+ Should be set to <3>.
+ * 1st cell contain the master dma request signal
+ * 2nd cell contain the mux value (0-3) for the peripheral
+ * 3rd cell contain either 1 or 2 depending on the AHB master used.
+
+ dma-requests:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 64
+ description: Number of DMA requests the controller can handle
+
+ dma-masters:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle pointing to the DMA controller
+
+ required:
+ - compatible
+ - '#dma-cells'
+ - dma-masters
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/lpc18xx-ccu.h>
+
+ syscon@...43000 {
+ compatible = "nxp,lpc1850-creg", "syscon", "simple-mfd";
+ reg = <0x40043000 0x1000>;
+ clocks = <&ccu1 CLK_CPU_CREG>;
+ resets = <&rgu 5>;
+
+ clock-controller {
+ compatible = "nxp,lpc1850-creg-clk";
+ clocks = <&xtal32>;
+ #clock-cells = <1>;
+ };
+
+ phy {
+ compatible = "nxp,lpc1850-usb-otg-phy";
+ clocks = <&ccu1 CLK_USB0>;
+ #phy-cells = <0>;
+ };
+
+ dma-mux {
+ compatible = "nxp,lpc1850-dmamux";
+ #dma-cells = <3>;
+ dma-requests = <64>;
+ dma-masters = <&dmac>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/phy-lpc18xx-usb-otg.txt b/Documentation/devicetree/bindings/phy/phy-lpc18xx-usb-otg.txt
deleted file mode 100644
index 3bb821cd6a7f3..0000000000000
--- a/Documentation/devicetree/bindings/phy/phy-lpc18xx-usb-otg.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-NXP LPC18xx/43xx internal USB OTG PHY binding
----------------------------------------------
-
-This file contains documentation for the internal USB OTG PHY found
-in NXP LPC18xx and LPC43xx SoCs.
-
-Required properties:
-- compatible : must be "nxp,lpc1850-usb-otg-phy"
-- clocks : must be exactly one entry
-See: Documentation/devicetree/bindings/clock/clock-bindings.txt
-- #phy-cells : must be 0 for this phy
-See: Documentation/devicetree/bindings/phy/phy-bindings.txt
-
-The phy node must be a child of the creg syscon node.
-
-Example:
-creg: syscon@...43000 {
- compatible = "nxp,lpc1850-creg", "syscon", "simple-mfd";
- reg = <0x40043000 0x1000>;
-
- usb0_otg_phy: phy {
- compatible = "nxp,lpc1850-usb-otg-phy";
- clocks = <&ccu1 CLK_USB0>;
- #phy-cells = <0>;
- };
-};
--
2.34.1
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