From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from finn.localdomain (finn.gateworks.com [108.161.129.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C4EE298CB4; Fri, 23 May 2025 17:37:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=108.161.129.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748021854; cv=none; b=Hsb25Ozlpm+2Qvr8T5Hhu7l3yVQOPx43l06KRxAJix69Iwd7Ktao5V44ntxrfWEYZZgAJpinL/CuJZ0odCyQ46HkNaQp6/i2u54jGdHa3HKBHwXRjMt2EPKsbe/57LphADUIfeLQ8PpmuWVtMfiJzIrep4q7/cw4kvORJ1dxyMo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748021854; c=relaxed/simple; bh=snqdywC+ZOb+ztTGEadHPFcaAoXbxThrepYl8ZwM+M8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AmrY16Bz//ERJUG1QRhIxqSHvjJkuDC0F0mwdiPr9XshskEq/s39qYqgu95KlSpmRNiomgraEkfgMoTUq9woyhjxghsfpNDsaawwbyVD7NCd8Ep6lEUZ6gWrN9s/MVkE+lhGYA7OmP5tYg0+PNnt5de95XeSQk2AFKTl7V8OsK4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gateworks.com; spf=pass smtp.mailfrom=gateworks.com; arc=none smtp.client-ip=108.161.129.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gateworks.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gateworks.com 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> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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