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[67.185.54.80]) by smtp.gmail.com with ESMTPSA id 143sm23155295pgc.6.2019.08.20.18.39.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Aug 2019 18:39:56 -0700 (PDT) From: Andrey Smirnov To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] ARM: dts: vf610-zii-cfu1: Slow I2C0 down to 100 kHz Date: Tue, 20 Aug 2019 18:39:36 -0700 Message-Id: <20190821013936.12223-1-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190820_184000_669584_18F3F939 X-CRM114-Status: GOOD ( 11.96 ) X-Spam-Score: 0.8 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.8 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:643 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (andrew.smirnov[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 1.0 FREEMAIL_REPLY From and body contain different freemails X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrey Smirnov , Fabio Estevam , Shawn Guo , linux-kernel@vger.kernel.org, Chris Healy Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Fiber-optic modules attached to the bus are only rated to work at 100 kHz, so decrease the bus frequency to accommodate that. Signed-off-by: Andrey Smirnov Cc: Shawn Guo Cc: Chris Healy Cc: Fabio Estevam Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Andrew Lunn --- Changes since [v1]: - Spelling fixes [v1] lore.kernel.org/lkml/20190820030804.8892-1-andrew.smirnov@gmail.com arch/arm/boot/dts/vf610-zii-cfu1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/vf610-zii-cfu1.dts b/arch/arm/boot/dts/vf610-zii-cfu1.dts index ff460a1de85a..28732249cfc0 100644 --- a/arch/arm/boot/dts/vf610-zii-cfu1.dts +++ b/arch/arm/boot/dts/vf610-zii-cfu1.dts @@ -207,7 +207,7 @@ }; &i2c0 { - clock-frequency = <400000>; + clock-frequency = <100000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c0>; status = "okay";