1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,exynos7-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Samsung Exynos7 SoC clock controller
8
9 maintainers:
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - Tomasz Figa <tomasz.figa@gmail.com>
14
15 description: |
16 Expected external clocks, defined in DTS as fixed-rate clocks with a matching
17 name::
18 - "fin_pll" - PLL input clock from XXTI
19
20 All available clocks are defined as preprocessor macros in
21 include/dt-bindings/clock/exynos7-clk.h header.
22
23 properties:
24 compatible:
25 enum:
26 - samsung,exynos7-clock-topc
27 - samsung,exynos7-clock-top0
28 - samsung,exynos7-clock-top1
29 - samsung,exynos7-clock-ccore
30 - samsung,exynos7-clock-peric0
31 - samsung,exynos7-clock-peric1
32 - samsung,exynos7-clock-peris
33 - samsung,exynos7-clock-fsys0
34 - samsung,exynos7-clock-fsys1
35 - samsung,exynos7-clock-mscl
36 - samsung,exynos7-clock-aud
37
38 clocks:
39 minItems: 1
40 maxItems: 13
41
42 clock-names:
43 minItems: 1
44 maxItems: 13
45
46 "#clock-cells":
47 const: 1
48
49 reg:
50 maxItems: 1
51
52 required:
53 - compatible
54 - "#clock-cells"
55 - reg
56
57 allOf:
58 - if:
59 properties:
60 compatible:
61 contains:
62 const: samsung,exynos7-clock-top0
63 then:
64 properties:
65 clocks:
66 minItems: 6
67 maxItems: 6
68 clock-names:
69 items:
70 - const: fin_pll
71 - const: dout_sclk_bus0_pll
72 - const: dout_sclk_bus1_pll
73 - const: dout_sclk_cc_pll
74 - const: dout_sclk_mfc_pll
75 - const: dout_sclk_aud_pll
76 required:
77 - clock-names
78 - clocks
79
80 - if:
81 properties:
82 compatible:
83 contains:
84 const: samsung,exynos7-clock-top1
85 then:
86 properties:
87 clocks:
88 minItems: 5
89 maxItems: 5
90 clock-names:
91 items:
92 - const: fin_pll
93 - const: dout_sclk_bus0_pll
94 - const: dout_sclk_bus1_pll
95 - const: dout_sclk_cc_pll
96 - const: dout_sclk_mfc_pll
97 required:
98 - clock-names
99 - clocks
100
101 - if:
102 properties:
103 compatible:
104 contains:
105 const: samsung,exynos7-clock-ccore
106 then:
107 properties:
108 clocks:
109 minItems: 2
110 maxItems: 2
111 clock-names:
112 items:
113 - const: fin_pll
114 - const: dout_aclk_ccore_133
115 required:
116 - clock-names
117 - clocks
118
119 - if:
120 properties:
121 compatible:
122 contains:
123 const: samsung,exynos7-clock-peric0
124 then:
125 properties:
126 clocks:
127 minItems: 3
128 maxItems: 3
129 clock-names:
130 items:
131 - const: fin_pll
132 - const: dout_aclk_peric0_66
133 - const: sclk_uart0
134 required:
135 - clock-names
136 - clocks
137
138 - if:
139 properties:
140 compatible:
141 contains:
142 const: samsung,exynos7-clock-peric1
143 then:
144 properties:
145 clocks:
146 minItems: 13
147 maxItems: 13
148 clock-names:
149 items:
150 - const: fin_pll
151 - const: dout_aclk_peric1_66
152 - const: sclk_uart1
153 - const: sclk_uart2
154 - const: sclk_uart3
155 - const: sclk_spi0
156 - const: sclk_spi1
157 - const: sclk_spi2
158 - const: sclk_spi3
159 - const: sclk_spi4
160 - const: sclk_i2s1
161 - const: sclk_pcm1
162 - const: sclk_spdif
163 required:
164 - clock-names
165 - clocks
166
167 - if:
168 properties:
169 compatible:
170 contains:
171 const: samsung,exynos7-clock-peris
172 then:
173 properties:
174 clocks:
175 minItems: 2
176 maxItems: 2
177 clock-names:
178 items:
179 - const: fin_pll
180 - const: dout_aclk_peris_66
181 required:
182 - clock-names
183 - clocks
184
185 - if:
186 properties:
187 compatible:
188 contains:
189 const: samsung,exynos7-clock-fsys0
190 then:
191 properties:
192 clocks:
193 minItems: 3
194 maxItems: 3
195 clock-names:
196 items:
197 - const: fin_pll
198 - const: dout_aclk_fsys0_200
199 - const: dout_sclk_mmc2
200 required:
201 - clock-names
202 - clocks
203
204 - if:
205 properties:
206 compatible:
207 contains:
208 const: samsung,exynos7-clock-fsys1
209 then:
210 properties:
211 clocks:
212 minItems: 7
213 maxItems: 7
214 clock-names:
215 items:
216 - const: fin_pll
217 - const: dout_aclk_fsys1_200
218 - const: dout_sclk_mmc0
219 - const: dout_sclk_mmc1
220 - const: dout_sclk_ufsunipro20
221 - const: dout_sclk_phy_fsys1
222 - const: dout_sclk_phy_fsys1_26m
223 required:
224 - clock-names
225 - clocks
226
227 - if:
228 properties:
229 compatible:
230 contains:
231 const: samsung,exynos7-clock-aud
232 then:
233 properties:
234 clocks:
235 minItems: 2
236 maxItems: 2
237 clock-names:
238 items:
239 - const: fin_pll
240 - const: fout_aud_pll
241 required:
242 - clock-names
243 - clocks
244
245 additionalProperties: false
246
247 examples:
248 - |
249 #include <dt-bindings/clock/exynos7-clk.h>
250
251 fin_pll: clock {
252 compatible = "fixed-clock";
253 clock-output-names = "fin_pll";
254 #clock-cells = <0>;
255 clock-frequency = <24000000>;
256 };
257
258 clock-controller@105e0000 {
259 compatible = "samsung,exynos7-clock-top1";
260 reg = <0x105e0000 0xb000>;
261 #clock-cells = <1>;
262 clocks = <&fin_pll>,
263 <&clock_topc DOUT_SCLK_BUS0_PLL>,
264 <&clock_topc DOUT_SCLK_BUS1_PLL>,
265 <&clock_topc DOUT_SCLK_CC_PLL>,
266 <&clock_topc DOUT_SCLK_MFC_PLL>;
267 clock-names = "fin_pll",
268 "dout_sclk_bus0_pll",
269 "dout_sclk_bus1_pll",
270 "dout_sclk_cc_pll",
271 "dout_sclk_mfc_pll";
272 };
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