linux-kernel - Re: [PATCH 1/1] ARM: dts: stm32: adjust USB OTG gadget fifo sizes in stm32mp151

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Date:   Tue, 17 Nov 2020 10:59:23 +0100
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Amelie Delaunay <amelie.delaunay@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] ARM: dts: stm32: adjust USB OTG gadget fifo sizes in
 stm32mp151

Hi Amélie

On 11/10/20 2:10 PM, Amelie Delaunay wrote:
> Defaut use case on stm32mp151 USB OTG is ethernet gadget, using EP1 bulk
> endpoint (MPS=512 bytes) and EP2 interrupt endpoint (MPS=16 bytes).
> This patch optimizes USB OTG FIFO sizes accordingly.
> 
> Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
> ---
>   arch/arm/boot/dts/stm32mp151.dtsi | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
> index 6ffcf06dc0e8..928e31db1526 100644
> --- a/arch/arm/boot/dts/stm32mp151.dtsi
> +++ b/arch/arm/boot/dts/stm32mp151.dtsi
> @@ -1070,9 +1070,9 @@
>   			resets = <&rcc USBO_R>;
>   			reset-names = "dwc2";
>   			interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
> -			g-rx-fifo-size = <256>;
> +			g-rx-fifo-size = <512>;
>   			g-np-tx-fifo-size = <32>;
> -			g-tx-fifo-size = <128 128 64 64 64 64 32 32>;
> +			g-tx-fifo-size = <256 16 16 16 16 16 16 16>;
>   			dr_mode = "otg";
>   			usb33d-supply = <&usb33>;
>   			status = "disabled";
> 

Applied on stm32-next.

Thanks.
Alex