1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pwm/fsl,vf610-ftm-pwm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale FlexTimer Module (FTM) PWM controller
8
9 description: |
10 The same FTM PWM device can have a different endianness on different SoCs. The
11 device tree provides a property to describing this so that an operating system
12 device driver can handle all variants of the device. Refer to the table below
13 for the endianness of the FTM PWM block as integrated into the existing SoCs:
14
15 SoC | FTM-PWM endianness
16 --------+-------------------
17 Vybrid | LE
18 LS1 | BE
19 LS2 | LE
20
21 Please see ../regmap/regmap.txt for more detail about how to specify endian
22 modes in device tree.
23
24 maintainers:
25 - Frank Li <Frank.Li@nxp.com>
26
27 properties:
28 compatible:
29 enum:
30 - fsl,vf610-ftm-pwm
31 - fsl,imx8qm-ftm-pwm
32
33 reg:
34 maxItems: 1
35
36 "#pwm-cells":
37 const: 3
38
39 clocks:
40 minItems: 4
41 maxItems: 4
42
43 clock-names:
44 items:
45 - const: ftm_sys
46 - const: ftm_ext
47 - const: ftm_fix
48 - const: ftm_cnt_clk_en
49
50 pinctrl-0: true
51 pinctrl-1: true
52
53 pinctrl-names:
54 minItems: 1
55 items:
56 - const: default
57 - const: sleep
58
59 big-endian:
60 $ref: /schemas/types.yaml#/definitions/flag
61 description:
62 Boolean property, required if the FTM PWM registers use a big-
63 endian rather than little-endian layout.
64
65 required:
66 - compatible
67 - reg
68 - clocks
69 - clock-names
70
71 allOf:
72 - $ref: pwm.yaml#
73
74 unevaluatedProperties: false
75
76 examples:
77 - |
78 #include <dt-bindings/clock/vf610-clock.h>
79
80 pwm@40038000 {
81 compatible = "fsl,vf610-ftm-pwm";
82 reg = <0x40038000 0x1000>;
83 #pwm-cells = <3>;
84 clocks = <&clks VF610_CLK_FTM0>,
85 <&clks VF610_CLK_FTM0_EXT_SEL>,
86 <&clks VF610_CLK_FTM0_FIX_SEL>,
87 <&clks VF610_CLK_FTM0_EXT_FIX_EN>;
88 clock-names = "ftm_sys", "ftm_ext", "ftm_fix", "ftm_cnt_clk_en";
89 pinctrl-names = "default";
90 pinctrl-0 = <&pinctrl_pwm0_1>;
91 big-endian;
92 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.