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[60.250.196.139]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39b26123c99sm23052621a91.11.2026.09.07.18.47.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Sep 2026 18:47:55 -0700 (PDT) Message-ID: <3dde0b18-ba6e-466d-94f5-e5ca3ee083e8@gmail.com> Date: Tue, 8 Sep 2026 09:47:51 +0800 Precedence: bulk X-Mailing-List: soc@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 RESEND] arm64: dts: nuvoton: ma35d1: add CAN nodes To: Marc Kleine-Budde Cc: arnd@arndb.de, olof@lixom.net, soc@lists.linux.dev, ychuang3@nuvoton.com, schung@nuvoton.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260708082457.460710-1-zychennvt@gmail.com> <20260824-smooth-jolly-sponge-ba4b95-mkl@pengutronix.de> Content-Language: en-US From: zychen In-Reply-To: <20260824-smooth-jolly-sponge-ba4b95-mkl@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Thanks for the review. I tested the change and confirmed that an accurate 80 MHz CAN clock can be generated. I've uploaded v3 with this change included. regards, Zi-Yu Marc Kleine-Budde 於 2026/8/24 下午 06:39 寫道: > On 08.07.2026 16:24:57, Zi-Yu Chen wrote: >> Add controller nodes for the four Bosch M_CAN blocks found on the >> Nuvoton MA35D1 SoC. >> >> Additionally, configure pinctrl and enable CAN1 and CAN3 on the >> MA35D1 SOM board. Also, update the APLL frequency to 200MHz to ensure >> the CAN controllers receive the required input clock for 50MHz operation. > > 50 MHz is an unusual CAN clock frequency. Better use a multiple of 40 > MHz. Within the limits of the m_can IP core, the higher the multiple the > better. > > regards, > Marc >