[{"id":3683815,"web_url":"http://patchwork.ozlabs.org/comment/3683815/","msgid":"<26477419-5e85-c1da-738b-80dee4dbd73e@nabladev.com>","list_archive_url":null,"date":"2026-04-29T06:08:09","subject":"Re: [PATCH 1/3] arm: dts: a10: Correct i2c scl falling time","submitter":{"id":91409,"url":"http://patchwork.ozlabs.org/api/people/91409/","name":"Heiko Schocher","email":"hs@nabladev.com"},"content":"Hello Dinesh,\n\nOn 29.04.26 07:11, dinesh.maniyam@altera.com wrote:\n> From: Dinesh Maniyam \n> \n> The value set for i2c-scl-falling-time-ns in Linux DTS is not\n> compatible for the i2c driver in U-Boot. The value is updated\n> to the max value specified in the HW spec.\n> \n> Signed-off-by: Tien Fong Chee \n> Signed-off-by: Dinesh Maniyam \n> ---\n> arch/arm/dts/socfpga_arria10_socdk-u-boot.dtsi | 5 +++++\n> 1 file changed, 5 insertions(+)\n\nThanks!\n\nReviewed-by: Heiko Schocher \n\nbye,\nHeiko\n> \n> diff --git a/arch/arm/dts/socfpga_arria10_socdk-u-boot.dtsi b/arch/arm/dts/socfpga_arria10_socdk-u-boot.dtsi\n> index 56d50ecee30..4857939ce1a 100644\n> --- a/arch/arm/dts/socfpga_arria10_socdk-u-boot.dtsi\n> +++ b/arch/arm/dts/socfpga_arria10_socdk-u-boot.dtsi\n> @@ -12,6 +12,11 @@\n> \t};\n> };\n> \n> +&i2c1 {\n> +\t/* Max value set according to HW spec */\n> +\ti2c-scl-falling-time-ns = <300>;\n> +};\n> +\n> &uart1 {\n> \tbootph-all;\n> };\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=nabladev.com header.i=@nabladev.com header.a=rsa-sha256\n header.s=dkim header.b=IXGb7FcR;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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Linux x86_64; rv:91.0) Gecko/20100101\n Thunderbird/91.2.0","Subject":"Re: [PATCH 1/3] arm: dts: a10: Correct i2c scl falling time","Content-Language":"en-US","To":"dinesh.maniyam@altera.com, u-boot@lists.denx.de","Cc":"Tom Rini , Dinh Nguyen ,\n Alif Zakuan Yuslaimi ,\n Peng Fan , Wojciech Szamocki\n , Maksim Kiselev ,\n Chen Huei Lok ,\n Tien Fong , Kok Kiang ,\n Boon Khai ","References":"\n <11ad4489fcd6747099ee82feac2e4613df26192c.1777439293.git.dinesh.maniyam@altera.com>","From":"Heiko Schocher ","In-Reply-To":"\n <11ad4489fcd6747099ee82feac2e4613df26192c.1777439293.git.dinesh.maniyam@altera.com>","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-Last-TLS-Session-Version":"TLSv1.3","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"}}]