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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2018-09-11 17:47:04 +0900
committerFelipe Balbi <felipe.balbi@linux.intel.com>2018-10-02 10:38:30 +0300
commit18320f4779a5f469dec53355a39037682ef46190 (patch)
tree9ce013072d54da84b80ee8efefeef37ae68c93ff /Documentation/devicetree/bindings/usb
parentusb: renesas_usbhs: Add reset_control (diff)
downloadlinux-dev-18320f4779a5f469dec53355a39037682ef46190.tar.xz
linux-dev-18320f4779a5f469dec53355a39037682ef46190.zip
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> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings/usb')
-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 43960faf5a88..f19ec72d6a2e 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -25,7 +25,11 @@ 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