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Fri, 06 Oct 2023 01:15:51 -0700 (PDT) Received: from [192.168.50.4] ([82.78.167.24]) by smtp.gmail.com with ESMTPSA id l12-20020a170906230c00b009920e9a3a73sm2474516eja.115.2023.10.06.01.15.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Oct 2023 01:15:51 -0700 (PDT) Message-ID: <070a6f48-20a4-4e26-a071-0600a6ecea36@tuxon.dev> Date: Fri, 6 Oct 2023 11:15:49 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH] ARM: dts: at91: sama5d3_eds: remove TDES use To: nicolas.ferre@microchip.com, linux-arm-kernel@lists.infradead.org, jerry.ray@microchip.com Cc: Alexandre Belloni , linux-kernel@vger.kernel.org References: <20230928145655.215481-1-nicolas.ferre@microchip.com> Content-Language: en-US From: claudiu beznea In-Reply-To: <20230928145655.215481-1-nicolas.ferre@microchip.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231006_011557_687801_C265D654 X-CRM114-Status: GOOD ( 18.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Nicolas, Jerry, On 28.09.2023 17:56, nicolas.ferre@microchip.com wrote: > From: Nicolas Ferre > > TDES doesn't probe because of lack of DMA channels left on this > controller. As we don't need TDES HW engine, we prefer to keep DMA > channels for other usage. > Disable TDES for this board. > > Signed-off-by: Nicolas Ferre > --- > Hi, > > Tell me what you think about this move. I think it makes sense but tell me if > application could suffer from this lack of TDES engine. It anyway fails to probe. I have nothing against unless its probing could be fixed. Jerry, are you good with applying this? Thank you, Claudiu Beznea > > Regards, > Nicolas > > arch/arm/boot/dts/microchip/at91-sama5d3_eds.dts | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm/boot/dts/microchip/at91-sama5d3_eds.dts b/arch/arm/boot/dts/microchip/at91-sama5d3_eds.dts > index c287b03d768b..fddd786f8483 100644 > --- a/arch/arm/boot/dts/microchip/at91-sama5d3_eds.dts > +++ b/arch/arm/boot/dts/microchip/at91-sama5d3_eds.dts > @@ -284,6 +284,10 @@ timer1: timer@1 { > }; > }; > > +&tdes { > + status = "disabled"; > +}; > + > &usb0 { /* USB Device port with VBUS detection. */ > atmel,vbus-gpio = <&pioE 9 GPIO_ACTIVE_HIGH>; > pinctrl-names = "default"; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel