From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C310846A5F8; Tue, 21 Jul 2026 15:54:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784649282; cv=none; b=egok5kpiuiEKhuwZW6fkqtpMN2C3gY3NJlvuEZf2k0uI1bH00VpTU90pzT5ePx4VukFdB8KsuX+T6jwpG5p4bOgn/TKlp2J0FEcA2s4bkz0tekESBn/lCdhkysyj3IzLvOWzPHSNZItrM+prOYzKFs9WeWYRUKz10NlGMBCkqDU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784649282; c=relaxed/simple; bh=hsKfWiGXfl+hh8B1N8OzjG0x7q0TLDXlcNO/VHJUmvk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cIySAxRi4u/nvlTm9J9mwkS3gmqfn6biSALnU9F6Z71LX1Yf5nBY6BKxj0HvqoKz+mlum9DNiZBDTzfIb+R/MibM2VMMajOS/1hCXDFP2u5Txq0ncLrBEWtzEKL573+SBsPagj2TOXf9W3zmbAlZN1FAxuxYNjxlJ2yEFqci9wc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VXYoWmsw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="VXYoWmsw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34F2C1F000E9; Tue, 21 Jul 2026 15:54:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784649281; bh=WQgskmDlf+dxe11DFwdo9x4QsKSYtkBUa8U7sDRg10w=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VXYoWmswXTzdcSVja4Xc8mWUW7d/jZPvk+tWCk733hK2HoQIW/Df3BibrxLhnPnXW xU0wuMWVX9VvRDO2eUZrQt9C3A+B0+NP6m7nGqWh/Q7wB6LMghWq8iGBIfV/Y0U2TP 0uy4rHnf0ZQz+2CWDL0b2er4nqIX0cV6sM2LKf4M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Frieder Schrempf , Frank Li , Sasha Levin Subject: [PATCH 7.1 0502/2077] arm64: dts: imx8mp-kontron: Reduce EERAM SPI clock frequency Date: Tue, 21 Jul 2026 17:02:55 +0200 Message-ID: <20260721152604.654840480@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152552.646164743@linuxfoundation.org> References: <20260721152552.646164743@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Frieder Schrempf [ Upstream commit 95f5bc1632ab8f243e517357b5da0dd28d1c6c92 ] There is an onboard level shifter for the SPI signals that causes additional propagation delay and renders the SPI transmission unreliable at 20 MHz. Reduce the clock frequency to a safe value. Fixes: 946ab10e3f40 ("arm64: dts: Add support for Kontron OSM-S i.MX8MP SoM and BL carrier board") Signed-off-by: Frieder Schrempf Signed-off-by: Frank Li Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts index 0924ac50fd2dbc..75ae4664278214 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts @@ -63,7 +63,7 @@ &ecspi2 { eeram@0 { compatible = "microchip,48l640"; reg = <0>; - spi-max-frequency = <20000000>; + spi-max-frequency = <16000000>; }; }; -- 2.53.0