bindings/clock/google%2Cgs101-clock.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/google,gs101-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Peter Griffin <peter.griffin@linaro.org>
16   is OSCCLK (24.576 MHz). That external clock must be defined as a fixed-rate
19   CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
25   'dt-bindings/clock/gs101.h' header.
30       - google,gs101-cmu-top
31       - google,gs101-cmu-apm
32       - google,gs101-cmu-misc
33       - google,gs101-cmu-hsi0
34       - google,gs101-cmu-hsi2
35       - google,gs101-cmu-peric0
36       - google,gs101-cmu-peric1
42   clock-names:
46   "#clock-cells":
53   - compatible
54   - "#clock-cells"
55   - clocks
56   - clock-names
57   - reg
60   - if:
65               - google,gs101-cmu-top
66               - google,gs101-cmu-apm
71             - description: External reference clock (24.576 MHz)
73         clock-names:
75             - const: oscclk
77   - if:
81             const: google,gs101-cmu-hsi0
87             - description: External reference clock (24.576 MHz)
88             - description: HSI0 bus clock (from CMU_TOP)
89             - description: DPGTC (from CMU_TOP)
90             - description: USB DRD controller clock (from CMU_TOP)
91             - description: USB Display Port debug clock (from CMU_TOP)
93         clock-names:
95             - const: oscclk
96             - const: bus
97             - const: dpgtc
98             - const: usb31drd
99             - const: usbdpdbg
101   - if:
106               - google,gs101-cmu-hsi2
112             - description: External reference clock (24.576 MHz)
113             - description: High Speed Interface bus clock (from CMU_TOP)
114             - description: High Speed Interface pcie clock (from CMU_TOP)
115             - description: High Speed Interface ufs clock (from CMU_TOP)
116             - description: High Speed Interface mmc clock (from CMU_TOP)
118         clock-names:
120             - const: oscclk
121             - const: bus
122             - const: pcie
123             - const: ufs
124             - const: mmc
126   - if:
130             const: google,gs101-cmu-misc
136             - description: Misc bus clock (from CMU_TOP)
137             - description: Misc sss clock (from CMU_TOP)
139         clock-names:
141             - const: bus
142             - const: sss
144   - if:
149               - google,gs101-cmu-peric0
150               - google,gs101-cmu-peric1
156             - description: External reference clock (24.576 MHz)
157             - description: Connectivity Peripheral 0/1 bus clock (from CMU_TOP)
158             - description: Connectivity Peripheral 0/1 IP clock (from CMU_TOP)
160         clock-names:
162             - const: oscclk
163             - const: bus
164             - const: ip
170   - |
171     #include <dt-bindings/clock/google,gs101.h>
173     cmu_top: clock-controller@1e080000 {
174         compatible = "google,gs101-cmu-top";
176         #clock-cells = <1>;
178         clock-names = "oscclk";