linux-kernel - [PATCH 1/2] dt-bindings: usb: dwc2: add support for STM32MP15 SoCs USB OTG HS and FS

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Message-ID: <20191125102659.22853-2-amelie.delaunay@st.com>
Date:   Mon, 25 Nov 2019 11:26:58 +0100
From:   Amelie Delaunay <amelie.delaunay@...com>
To:     Minas Harutyunyan <hminas@...opsys.com>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
CC:     <linux-usb@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Fabrice Gasnier <fabrice.gasnier@...com>,
        Benjamin Gaignard <benjamin.gaignard@...com>,
        Amelie Delaunay <amelie.delaunay@...com>
Subject: [PATCH 1/2] dt-bindings: usb: dwc2: add support for STM32MP15 SoCs USB OTG HS and FS

Add the specific compatible string for the DWC2 IP found in the STM32MP15
SoCs.
STM32MP15 SoCs uses sensing comparators to detect Vbus valid levels and
ID pin state. usb33d-supply described the regulator supplying Vbus and ID
sensing comparators.

Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
---
 Documentation/devicetree/bindings/usb/dwc2.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index aafff3a6904d..c2c8d40076cf 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -23,6 +23,9 @@ Required properties:
   configured in HS mode;
   - "st,stm32f7-hsotg": The DWC2 USB HS controller instance in STM32F7 SoCs
     configured in HS mode;
+  - "st,stm32mp15-fsotg": The DWC2 USB controller instance in STM32MP15 SoCs,
+  configured in FS mode (using dedicated FS transceiver).
+  - "st,stm32mp15-hsotg": The DWC2 USB controller instance in STM32MP15 SoCs;
 - reg : Should contain 1 register range (address and length)
 - interrupts : Should contain 1 interrupt
 - clocks: clock provider specifier
@@ -46,6 +49,8 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties
                           on for remote wakeup during suspend.
 - snps,reset-phy-on-wake: If present indicates that we need to reset the PHY when
                           we detect a wakeup.  This is due to a hardware errata.
+- usb33d-supply: external VBUS and ID sensing comparators supply, in order to
+		 perform OTG operation, used on STM32MP15 SoCs.
 
 Deprecated properties:
 - g-use-dma: gadget DMA mode is automatically detected
-- 
2.17.1