From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 53F831171B for ; Mon, 11 Sep 2023 15:01:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C8C4FC433C7; Mon, 11 Sep 2023 15:01:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694444515; bh=nwmdVDhKsk3oU09doMeHFyvmc7Lype4R9m7xFSxsTA4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JpoXwTb2oKx5DfbGReV8hyYkp0obDgf7tOyhrwsRSF1c+igAMQoSSvepJJ1l1XTwP GV/QYgywi0N90tZAF9LqfpkoJdPWLVKnLrWos2SdEA/HWR6uE7849I3qL4Z4YyYP2T ozwBv5awokXkLHDkLLg9cSHZ7Fz2m0Ojhki7fWWg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Xiaolei Wang , Fabio Estevam , Shawn Guo , Sasha Levin Subject: [PATCH 6.1 005/600] ARM: dts: imx: Set default tuning step for imx7d usdhc Date: Mon, 11 Sep 2023 15:40:38 +0200 Message-ID: <20230911134633.781405058@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134633.619970489@linuxfoundation.org> References: <20230911134633.619970489@linuxfoundation.org> User-Agent: quilt/0.67 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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Xiaolei Wang [ Upstream commit be18293e47cbca7c6acee9231fc851601d69563a ] If the tuning step is not set, the tuning step is set to 1. For some sd cards, the following Tuning timeout will occur. Tuning failed, falling back to fixed sampling clock mmc0: Tuning failed, falling back to fixed sampling clock So set the default tuning step. This refers to the NXP vendor's commit below: https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/ arch/arm/boot/dts/imx7s.dtsi#L1216-L1217 Fixes: 1e336aa0c025 ("mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting") Signed-off-by: Xiaolei Wang Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx7s.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi index 11b9321badc51..667568aa4326a 100644 --- a/arch/arm/boot/dts/imx7s.dtsi +++ b/arch/arm/boot/dts/imx7s.dtsi @@ -1184,6 +1184,8 @@ <&clks IMX7D_USDHC1_ROOT_CLK>; clock-names = "ipg", "ahb", "per"; bus-width = <4>; + fsl,tuning-step = <2>; + fsl,tuning-start-tap = <20>; status = "disabled"; }; @@ -1196,6 +1198,8 @@ <&clks IMX7D_USDHC2_ROOT_CLK>; clock-names = "ipg", "ahb", "per"; bus-width = <4>; + fsl,tuning-step = <2>; + fsl,tuning-start-tap = <20>; status = "disabled"; }; @@ -1208,6 +1212,8 @@ <&clks IMX7D_USDHC3_ROOT_CLK>; clock-names = "ipg", "ahb", "per"; bus-width = <4>; + fsl,tuning-step = <2>; + fsl,tuning-start-tap = <20>; status = "disabled"; }; -- 2.40.1