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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2018-09-11 17:47:04 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-20 13:16:14 +0200
commit8e0d368a59bf87efa5ee4daea142527d01447864 (patch)
tree2aa8828b42fa0d10bd6fa9f96c3a314ab46e79b9 /Documentation/devicetree/bindings/usb/renesas_usbhs.txt
parentf181dbb4824130e84f46e5be5b49cf6456f96683 (diff)
downloadlinux-8e0d368a59bf87efa5ee4daea142527d01447864.tar.bz2
dt-bindings: usb: renesas_usbhs: add clock-names property
R-Car Gen3 needs to enable clocks of both host and peripheral. Otherwise, other side device cannot work correctly. So, this patch adds a property of clock-names for R-Car Gen3 as an optional. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/renesas_usbhs.txt')
-rw-r--r--Documentation/devicetree/bindings/usb/renesas_usbhs.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index 087140a4a49b..15fb3b3c1ac0 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -26,7 +26,11 @@ Required properties:
- reg: Base address and length of the register for the USBHS
- interrupts: Interrupt specifier for the USBHS
- - clocks: A list of phandle + clock specifier pairs
+ - clocks: A list of phandle + clock specifier pairs.
+ - In case of "renesas,rcar-gen3-usbhs", two clocks are required.
+ First clock should be peripheral and second one should be host.
+ - In case of except above, one clock is required. First clock
+ should be peripheral.
Optional properties:
- renesas,buswait: Integer to use BUSWAIT register