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dt-bindings: usb: exynos-usb: Document clock names for DWC3 bindings 

The Exynos DWC3 driver expects certain clock names, depending on used
compatible.  Document this explicitly in the bindings.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2020-02-10 15:04:16 +01:00 committed by Rob Herring
parent 1c27e9ae0f
commit a153182716
1 changed files with 8 additions and 1 deletions
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Documentation/devicetree/bindings/usb/exynos-usb.txt
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@ -78,7 +78,14 @@ Required properties:
- ranges: allows valid 1:1 translation between child's address space and - ranges: allows valid 1:1 translation between child's address space and
parent's address space parent's address space
- clocks: Clock IDs array as required by the controller. - clocks: Clock IDs array as required by the controller.
- clock-names: names of clocks correseponding to IDs in the clock property - clock-names: Names of clocks corresponding to IDs in the clock property.
Following clock names shall be provided for different
compatibles:
- samsung,exynos5250-dwusb3: "usbdrd30",
- samsung,exynos5433-dwusb3: "aclk", "susp_clk", "pipe_pclk",
"phyclk",
- samsung,exynos7-dwusb3: "usbdrd30", "usbdrd30_susp_clk",
"usbdrd30_axius_clk"
- vdd10-supply: 1.0V powr supply - vdd10-supply: 1.0V powr supply
- vdd33-supply: 3.0V/3.3V power supply - vdd33-supply: 3.0V/3.3V power supply