From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8396C54ED0 for ; Fri, 23 May 2025 17:46:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1PhEer1W319B45zH5Z8xBa4yAycmAQoYmyBs9mjgK+A=; b=AvF3O0+n4/ppgbRlx+bS+ffHPY tALWP8wcQK301GP82Z5s8cf5g2k9t9bYOvdh6PK3Asy/N89NR+kny0VesSXdPIpYOLD/IHGtU1pTZ SK10+i2qEKN87p760fqdX7if4tym9z2Nkp0FIuxsXuSTDBpmm7RglI1V327TXTnYPssazVjZGYe5Y OwqLuBKeUPbYp1UjNCkFB/v/wtucFtGwjhWEv4M9m+aDqS5VMl68tGI8YSDDd/JkOHatn0y0uSlQ5 YyevXht2tyLJf5JMuZI3sUb2Qr0sIy1ynztK9ILHEBqid2ZBacjaoZFVplOic//ncMaFWz7BzeuqY BFHlnGEQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uIWTH-00000004aqL-25Hw; Fri, 23 May 2025 17:46:15 +0000 Received: from finn.gateworks.com ([108.161.129.64] helo=finn.localdomain) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uIWKp-00000004Zbu-3dTp for linux-arm-kernel@lists.infradead.org; Fri, 23 May 2025 17:37:33 +0000 Received: from syn-068-189-091-139.biz.spectrum.com ([68.189.91.139] helo=tharvey.pdc.gateworks.com) by finn.localdomain with esmtp (Exim 4.95) (envelope-from ) id 1uIWKn-0076rJ-UP; Fri, 23 May 2025 17:37:30 +0000 From: Tim Harvey To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-stable@vger.kernel.org Cc: imx@lists.linux.dev, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Tim Harvey Subject: [PATCH 3/4] arm64: dts: imx8mp-venice-gw73xx: fix TPM SPI frequency Date: Fri, 23 May 2025 10:37:22 -0700 Message-Id: <20250523173723.4167474-3-tharvey@gateworks.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250523173723.4167474-1-tharvey@gateworks.com> References: <20250523173723.4167474-1-tharvey@gateworks.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250523_103731_906522_3DA584FE X-CRM114-Status: GOOD ( 11.32 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The IMX8MPDS Table 37 [1] shows that the max SPI master read frequency depends on the pins the interface is muxed behind with ECSPI2 muxed behind ECSPI2 supporting up to 25MHz. Adjust the spi-max-frequency based on these findings. [1] https://www.nxp.com/webapp/Download?colCode=IMX8MPIEC Fixes: 2b3ab9d81ab4 ("arm64: dts: imx8mp-venice-gw73xx: add TPM device") Signed-off-by: Tim Harvey --- arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi index e2b5e7ac3e46..5eb114d2360a 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi @@ -122,7 +122,7 @@ &ecspi2 { tpm@1 { compatible = "atmel,attpm20p", "tcg,tpm_tis-spi"; reg = <0x1>; - spi-max-frequency = <36000000>; + spi-max-frequency = <25000000>; }; }; -- 2.25.1