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[2001:b400:e30c:5507:a914:c4dd:879:41e4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7b924be368bsm16274111b3a.9.2025.11.18.02.53.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Nov 2025 02:53:33 -0800 (PST) From: Kevin Tung Date: Tue, 18 Nov 2025 18:53:18 +0800 Subject: [PATCH 1/3] ARM: dts: aspeed: yosemite5: Increase i2c4/i2c12 bus speed to 400 kHz Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251118-yv5_revise_dts-v1-1-fcd6b44b4497@gmail.com> References: <20251118-yv5_revise_dts-v1-0-fcd6b44b4497@gmail.com> In-Reply-To: <20251118-yv5_revise_dts-v1-0-fcd6b44b4497@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Amithash Prasasd , Kevin Tung , Ken Chen , Leo Yang , Kevin Tung X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1763463207; l=1020; i=kevin.tung.openbmc@gmail.com; s=20250924; h=from:subject:message-id; bh=V8hyqVc8AxjSIpi8Rf3ei8SCie7TL3OVm+o7PWaDSjI=; b=yTLo22srLoWN9l+075TqUif2qS7lg3gob+kFc4OjeXJUO/YBHZ72RwuTKPHKn3l6CUs3SlW4+ J6OpEW19//0Aq9exBxEepLLubirjgzAcXrA2O791MxNZOKzZMQ6ItH3 X-Developer-Key: i=kevin.tung.openbmc@gmail.com; a=ed25519; pk=PjAss0agA0hiuLfIBlA9j/qBmJaPCDP+jmQIUB6SE7g= Configure i2c4 and i2c12 to operate at 400 kHz instead of 100 kHz. This update aligns the bus settings with the hardware capabilities and improves MCTP communication performance. Signed-off-by: Kevin Tung --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts index 2486981f3d6bd36f3fe780b21e834b85242f8aa9..7991e9360847532cff9aad4ad4e= d57d4c30668a0 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts @@ -231,6 +231,7 @@ sbtsi@4c { &i2c4 { multi-master; mctp-controller; + clock-frequency =3D <400000>; status =3D "okay"; =20 mctp@10 { @@ -782,6 +783,7 @@ adc@4b { &i2c12 { multi-master; mctp-controller; + clock-frequency =3D <400000>; status =3D "okay"; =20 mctp@10 { --=20 2.51.2