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clk: vc5: Add bindings for IDT VersaClock 5P49V5935

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IDT VersaClock 5 5P49V5935 has 4 clock outputs, 4 fractional dividers.
Input clock source can be taken from either integrated crystal or from
external reference clock.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Alexey Firago
2017-04-07 12:12:23 +03:00
committed by Stephen Boyd
parent 9adddb01ce
commit a330b6f5d1
1 changed files with 13 additions and 3 deletions
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16
Documentation/devicetree/bindings/clock/idt,versaclock5.txt
View File

@ -6,18 +6,21 @@ from 3 to 12 output clocks.
==I2C device node== ==I2C device node==
Required properties: Required properties:
- compatible: shall be one of "idt,5p49v5923" , "idt,5p49v5933". - compatible: shall be one of "idt,5p49v5923" , "idt,5p49v5933" ,
"idt,5p49v5935".
- reg: i2c device address, shall be 0x68 or 0x6a. - reg: i2c device address, shall be 0x68 or 0x6a.
- #clock-cells: from common clock binding; shall be set to 1. - #clock-cells: from common clock binding; shall be set to 1.
- clocks: from common clock binding; list of parent clock handles, - clocks: from common clock binding; list of parent clock handles,
- 5p49v5923: (required) either or both of XTAL or CLKIN - 5p49v5923: (required) either or both of XTAL or CLKIN
reference clock. reference clock.
- 5p49v5933: (optional) property not present (internal - 5p49v5933 and
- 5p49v5935: (optional) property not present (internal
Xtal used) or CLKIN reference Xtal used) or CLKIN reference
clock. clock.
- clock-names: from common clock binding; clock input names, can be - clock-names: from common clock binding; clock input names, can be
- 5p49v5923: (required) either or both of "xin", "clkin". - 5p49v5923: (required) either or both of "xin", "clkin".
- 5p49v5933: (optional) property not present or "clkin". - 5p49v5933 and
- 5p49v5935: (optional) property not present or "clkin".
==Mapping between clock specifier and physical pins== ==Mapping between clock specifier and physical pins==
@ -34,6 +37,13 @@ clock specifier, the following mapping applies:
1 -- OUT1 1 -- OUT1
2 -- OUT4 2 -- OUT4
5P49V5935:
0 -- OUT0_SEL_I2CB
1 -- OUT1
2 -- OUT2
3 -- OUT3
4 -- OUT4
==Example== ==Example==
/* 25MHz reference crystal */ /* 25MHz reference crystal */