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>
15   and clock event timers, as well as to drive SoC outputs with PWM signal. Each
16   PWM timer block provides 5 PWM channels (not all of them can drive physical
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,
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.
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:
85       A list of PWM channels used as PWM outputs on particular platform.
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>;
126         clock-names = "timers";
127         samsung,pwm-outputs = <0>, <1>;
128         #pwm-cells = <3>;