bindings/pwm/pwm-samsung.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/pwm/pwm-samsung.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Thierry Reding <thierry.reding@gmail.com>
11   - Krzysztof Kozlowski <krzk@kernel.org>
14   Samsung SoCs contain PWM timer blocks which can be used for system clock source
15   and clock event timers, as well as to drive SoC outputs with PWM signal. Each
17   outputs - see SoC and board manual).
24       - enum:
25           - samsung,s3c2410-pwm             # 16-bit, S3C24xx
26           - samsung,s3c6400-pwm             # 32-bit, S3C64xx
27           - samsung,s5p6440-pwm             # 32-bit, S5P64x0
28           - samsung,s5pc100-pwm             # 32-bit, S5PC100, S5PV210, Exynos4210 rev0 SoCs
29           - samsung,exynos4210-pwm          # 32-bit, Exynos
30       - items:
31           - enum:
32               - samsung,exynos5433-pwm
33               - samsung,exynos7-pwm
34               - samsung,exynosautov9-pwm
35               - samsung,exynosautov920-pwm
36               - tesla,fsd-pwm
37           - const: samsung,exynos4210-pwm
46   clock-names:
48       Should contain all following required clock names:
49       - "timers" - PWM base clock used to generate PWM signals,
50       and any subset of following optional clock names:
51       - "pwm-tclk0" - first external PWM clock source,
52       - "pwm-tclk1" - second external PWM clock source.
53       Note that not all IP variants allow using all external clock sources.
54       Refer to SoC documentation to learn which clock source configurations
57       - items:
58           - const: timers
59       - items:
60           - const: timers
61           - const: pwm-tclk0
62       - items:
63           - const: timers
64           - const: pwm-tclk1
65       - items:
66           - const: timers
67           - const: pwm-tclk0
68           - const: pwm-tclk1
77   "#pwm-cells":
83   samsung,pwm-outputs:
88     $ref: /schemas/types.yaml#/definitions/uint32-array
95   - clocks
96   - clock-names
97   - compatible
98   - reg
103   - $ref: pwm.yaml#
105   - if:
110               - samsung,s3c2410-pwm
111               - samsung,s3c6400-pwm
112               - samsung,s5p6440-pwm
113               - samsung,s5pc100-pwm
116         - interrupts
119   - |
121         compatible = "samsung,s3c6400-pwm";
123         interrupt-parent = <&vic0>;
125         clocks = <&clock 67>;
126         clock-names = "timers";
127         samsung,pwm-outputs = <0>, <1>;
128         #pwm-cells = <3>;