From 653c3d33893e34e7822b78de6377cbca26231edd Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sun, 2 Jan 2022 12:53:56 +0100 Subject: [PATCH] dt-bindings: clock: samsung: convert S5Pv210 to dtschema Convert Samsung S5Pv210 SoC clock controller bindings to DT schema format. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Stephen Boyd Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20220102115356.75796-8-krzysztof.kozlowski@canonical.com --- .../bindings/clock/samsung,s5pv210-clock.txt | 77 --------------------- .../bindings/clock/samsung,s5pv210-clock.yaml | 79 ++++++++++++++++++++++ MAINTAINERS | 1 - 3 files changed, 79 insertions(+), 78 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt create mode 100644 Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt deleted file mode 100644 index a86c83bf9d4e..000000000000 --- a/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt +++ /dev/null @@ -1,77 +0,0 @@ -* Samsung S5P6442/S5PC110/S5PV210 Clock Controller - -Samsung S5P6442, S5PC110 and S5PV210 SoCs contain integrated clock -controller, which generates and supplies clock to various controllers -within the SoC. - -Required Properties: - -- compatible: should be one of following: - - "samsung,s5pv210-clock" : for clock controller of Samsung - S5PC110/S5PV210 SoCs, - - "samsung,s5p6442-clock" : for clock controller of Samsung - S5P6442 SoC. - -- reg: physical base address of the controller and length of memory mapped - region. - -- #clock-cells: should be 1. - -All available clocks are defined as preprocessor macros in -dt-bindings/clock/s5pv210.h header and can be used in device tree sources. - -External clocks: - -There are several clocks that are generated outside the SoC. It is expected -that they are defined using standard clock bindings with following -clock-output-names: - - "xxti": external crystal oscillator connected to XXTI and XXTO pins of -the SoC, - - "xusbxti": external crystal oscillator connected to XUSBXTI and XUSBXTO -pins of the SoC, - -A subset of above clocks available on given board shall be specified in -board device tree, including the system base clock, as selected by XOM[0] -pin of the SoC. Refer to generic fixed rate clock bindings -documentation[1] for more information how to specify these clocks. - -[1] Documentation/devicetree/bindings/clock/fixed-clock.yaml - -Example: Clock controller node: - - clock: clock-controller@7e00f000 { - compatible = "samsung,s5pv210-clock"; - reg = <0x7e00f000 0x1000>; - #clock-cells = <1>; - }; - -Example: Required external clocks: - - xxti: clock-xxti { - compatible = "fixed-clock"; - clock-output-names = "xxti"; - clock-frequency = <24000000>; - #clock-cells = <0>; - }; - - xusbxti: clock-xusbxti { - compatible = "fixed-clock"; - clock-output-names = "xusbxti"; - clock-frequency = <24000000>; - #clock-cells = <0>; - }; - -Example: UART controller node that consumes the clock generated by the clock - controller (refer to the standard clock bindings for information about - "clocks" and "clock-names" properties): - - uart0: serial@e2900000 { - compatible = "samsung,s5pv210-uart"; - reg = <0xe2900000 0x400>; - interrupt-parent = <&vic1>; - interrupts = <10>; - clock-names = "uart", "clk_uart_baud0", - "clk_uart_baud1"; - clocks = <&clocks UART0>, <&clocks UART0>, - <&clocks SCLK_UART0>; - }; diff --git a/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.yaml new file mode 100644 index 000000000000..dcb29a2d1159 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/samsung,s5pv210-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung S5P6442/S5PC110/S5PV210 SoC clock controller + +maintainers: + - Chanwoo Choi + - Krzysztof Kozlowski + - Sylwester Nawrocki + - Tomasz Figa + +description: | + Expected external clocks, defined in DTS as fixed-rate clocks with a matching + name:: + - "xxti" - external crystal oscillator connected to XXTI and XXTO pins of + the SoC, + - "xusbxti" - external crystal oscillator connected to XUSBXTI and XUSBXTO + pins of the SoC, + + All available clocks are defined as preprocessor macros in + include/dt-bindings/clock/s5pv210.h header. + +properties: + compatible: + enum: + - samsung,s5pv210-clock + - samsung,s5p6442-clock + + clocks: + items: + - description: xxti clock + - description: xusbxti clock + + clock-names: + items: + - const: xxti + - const: xusbxti + + "#clock-cells": + const: 1 + + reg: + maxItems: 1 + +required: + - compatible + - "#clock-cells" + - reg + +additionalProperties: false + +examples: + - | + #include + + xxti: clock-0 { + compatible = "fixed-clock"; + clock-frequency = <0>; + clock-output-names = "xxti"; + #clock-cells = <0>; + }; + + xusbxti: clock-1 { + compatible = "fixed-clock"; + clock-frequency = <0>; + clock-output-names = "xusbxti"; + #clock-cells = <0>; + }; + + clock-controller@e0100000 { + compatible = "samsung,s5pv210-clock"; + reg = <0xe0100000 0x10000>; + clock-names = "xxti", "xusbxti"; + clocks = <&xxti>, <&xusbxti>; + #clock-cells = <1>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 1089bf0a2a72..3f64e43bfd00 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -16848,7 +16848,6 @@ S: Supported T: git git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk.git F: Documentation/devicetree/bindings/clock/samsung,*.yaml F: Documentation/devicetree/bindings/clock/samsung,s3c* -F: Documentation/devicetree/bindings/clock/samsung,s5p* F: drivers/clk/samsung/ F: include/dt-bindings/clock/exynos*.h F: include/dt-bindings/clock/s3c*.h -- 2.11.0