linux-kernel - Re: [PATCH 10/16] ARM: dts: stm32: keep uart4 behavior on stm32mp157c-lxa-mc1

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Message-ID: <6439e94e-ad3b-1e4d-e724-235121f40bc6@pengutronix.de>
Date:   Fri, 4 Feb 2022 16:49:20 +0100
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Erwan Le Ray <erwan.leray@...s.st.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Marek Vasut <marex@...x.de>,
        Marcin Sloniewski <marcin.sloniewski@...il.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/16] ARM: dts: stm32: keep uart4 behavior on
 stm32mp157c-lxa-mc1

On 03.02.22 18:11, Erwan Le Ray wrote:
> DMA configuration is added to uart nodes in stm32mp15x device tree.
> Delete uart4 DMA property in stm32mp157c-lxa-mc1 board device tree to
> keep console in irq mode, as DMA support for console has been removed
> from the driver by commit e359b4411c28 ("serial: stm32: fix threaded
> interrupt handling").
> 
> Signed-off-by: Erwan Le Ray <erwan.leray@...s.st.com>

Reviewed-by: Ahmad Fatoum <a.fatoum@...gutronix.de>

> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> index 1e9bf7eea0f1..e8d2ec41d537 100644
> --- a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> @@ -248,5 +248,7 @@
>  &uart4 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&uart4_pins_a>;
> +	/delete-property/dmas;
> +	/delete-property/dma-names;
>  	status = "okay";
>  };


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