Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
Message-ID: <2945e445-3453-a45f-7d3d-3b07bf350b47@linaro.org>
Date:   Fri, 13 May 2022 14:54:26 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.8.1
Subject: Re: [PATCH 3/3] ARM: dts: lan966x: Add UDPHS support
Content-Language: en-US
To:     Herve Codina <herve.codina@bootlin.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Nicolas Ferre <nicolas.ferre@microchip.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Claudiu Beznea <claudiu.beznea@microchip.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Horatiu Vultur <horatiu.vultur@microchip.com>
Cc:     linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-clk@vger.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>
References: <20220513105850.310375-1-herve.codina@bootlin.com>
 <20220513105850.310375-4-herve.codina@bootlin.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220513105850.310375-4-herve.codina@bootlin.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 13/05/2022 12:58, Herve Codina wrote:
> Add UDPHS (the USB High Speed Device Port controller) support.
> The UDPHS IP present in the lan966x SOC is the same as the one
> present in the SAMA5D3 SOC
> 
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> ---
>  arch/arm/boot/dts/lan966x.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/lan966x.dtsi b/arch/arm/boot/dts/lan966x.dtsi
> index 7d2869648050..4c09f3166d27 100644
> --- a/arch/arm/boot/dts/lan966x.dtsi
> +++ b/arch/arm/boot/dts/lan966x.dtsi
> @@ -211,6 +211,17 @@ can0: can@e081c000 {
>  			status = "disabled";
>  		};
>  
> +		udc: udphs@e0808000 {

Generic node names, so it looks like usb. For example HCD schema
requires it. I am not sure which bindings are used here, but anyway once
they might require usb...


Best regards,
Krzysztof