[cip-dev] [PATCH 4.19.y 08/17] dt-bindings: usb: renesas_usbhs: add clock-names property

Fabrizio Castro
2019-04-24T17:20:31Z

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

commit 8e0d368a59bf87efa5ee4daea142527d01447864 upstream.

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>
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
---
Documentation/devicetree/bindings/usb/renesas_usbhs.txt | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index 43960fa..f19ec72 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
--
2.7.4