linux-kernel - Re: [PATCH v3 27/50] dt-bindings: usb: atmel: add sam9x7

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Date:   Fri, 28 Jul 2023 18:42:53 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Varshini Rajendran <varshini.rajendran@...rochip.com>,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        claudiu.beznea@...rochip.com, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 27/50] dt-bindings: usb: atmel: add sam9x7

On 28/07/2023 12:27, Varshini Rajendran wrote:
> Add sam9x7 bindings.
> 
> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> ---
>  Documentation/devicetree/bindings/usb/atmel-usb.txt | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
> index 12183ef47ee4..82bd0dbc2a48 100644
> --- a/Documentation/devicetree/bindings/usb/atmel-usb.txt
> +++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt
> @@ -3,8 +3,9 @@ Atmel SOC USB controllers
>  OHCI
>  
>  Required properties:
> - - compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
> -   used in host mode.
> + - compatible: Should be "atmel,at91rm9200-ohci" or
> +   "microchip,sam9x7-ohci", "atmel,at91rm9200-ohci"
> +   for USB controllers used in host mode.
>   - reg: Address and length of the register set for the device
>   - interrupts: Should contain ohci interrupt
>   - clocks: Should reference the peripheral, host and system clocks
> @@ -30,8 +31,9 @@ usb0: ohci@...000 {
>  EHCI
>  
>  Required properties:
> - - compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
> -   used in host mode.
> + - compatible: Should be "atmel,at91sam9g45-ehci" or
> +   "microchip,sam9x7-ehci", "atmel,at91sam9g45-ehci"

This confuses me. Isn't microchip,sam9x7-ehci already described in EHCI
bindings?

Best regards,
Krzysztof