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dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix clock[-name]s properties

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Since the hardware requires to enable both USB 2.0 host and peripheral
functional clock, this patch fixes the documentation.
Fortunately, no one has this device node for now, so that we don't
need to think of backward compatibility.

Fixes: 311accb645 ("clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1583304137-28482-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Yoshihiro Shimoda 2020-03-04 15:42:14 +09:00 committed by Geert Uytterhoeven
parent 068e7f8523
commit fc51da4c15
1 changed files with 5 additions and 3 deletions
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8
Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt
View File

@ -38,7 +38,8 @@ Required properties:
- reg: offset and length of the USB 2.0 clock selector register block.
- clocks: A list of phandles and specifier pairs.
- clock-names: Name of the clocks.
- The functional clock must be "ehci_ohci"
- The functional clock of USB 2.0 host side must be "ehci_ohci"
- The functional clock of HS-USB side must be "hs-usb-if"
- The USB_EXTAL clock pin must be "usb_extal"
- The USB_XTAL clock pin must be "usb_xtal"
- #clock-cells: Must be 0
@ -49,7 +50,8 @@ Example (R-Car H3):
compatible = "renesas,r8a7795-rcar-usb2-clock-sel",
"renesas,rcar-gen3-usb2-clock-sel";
reg = <0 0xe6590630 0 0x02>;
clocks = <&cpg CPG_MOD 703>, <&usb_extal>, <&usb_xtal>;
clock-names = "ehci_ohci", "usb_extal", "usb_xtal";
clocks = <&cpg CPG_MOD 703>, <&cpg CPG_MOD 704>,
<&usb_extal>, <&usb_xtal>;
clock-names = "ehci_ohci", "hs-usb-if", "usb_extal", "usb_xtal";
#clock-cells = <0>;
};