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 D065FC624D3 for ; Fri, 4 Sep 2026 20:32:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mBfnFefFMnUMBX28NBBjTRBMiVykhCBMtekojEgUTjk=; b=AbgrXORY9YPCS0 jE79difXaYY+pJ+0kmAQ2KhMPxKUyUnyBvUlTSfWGZzTo0rnuFycSEojUhViVMnqv+wUoLxFc3qKU iYfoqEUqGEIh7XG8N7FRlarczmUbemoiVkP+RNv+GfieiOH3yMFK1ByDtvd7bU1CN2GDEG9BPjG1d 2+yhUtcQzk7Z861okLfv/4JIpQ90DXxcdH9G4FA2Xzm/2nlrYvvpNHkDNizCDWEIJWkxcLqbQtQ4G q0sT2Lv1LYX/6nfNi+rAdpkOm5GUox6m0ivtu5zkScUU2dr9I7XiUlhZhUsF7v7YqQu4lenJcP+gr s22CSE1E/ym0deEu+YWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x2aaF-00000003Gdd-19H4; Fri, 04 Sep 2026 20:32:23 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x2aaE-00000003GdS-0FjY for linux-riscv@lists.infradead.org; Fri, 04 Sep 2026 20:32:22 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id CE6DB40974; Fri, 4 Sep 2026 20:32:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47F421F00ACF; Fri, 4 Sep 2026 20:32:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788553941; bh=faGt6RM9nZNDLVI5nWQekSsP9/y8RIHlIgi2gEzyN+8=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=BNXVkHm2rG8675ikzmcjNnHgunSqXRbTTuayweLcKMp8l7UE7v92MRw5pWImYbIz5 lGYTGnfotzQUypdlQyN7Yc51U7QJ5LLsGIhcBgkp965Qb2y8OUXTpQpulEcztklLIW iPRAYMyLchGPR1us8b4z6VcIyOqcyTX1RzEGyPXuRdFVLIbj9IiciQUehrSMirVvWg ZAOBV2jL5frRz9h01vDYBVEYypKroLjgNUFpuMV5o2Hyt6XBxXeYMqmsPnBelfmqDl /cltB37YfZEdHn0FG0F6R30iQ3ZjfIG1mmYh9KAAA683HakS8XUxINeWODQGHQlCGx XYTOO9LiVe8aQ== Date: Fri, 4 Sep 2026 20:32:19 +0000 From: Yixun Lan To: Krzysztof Kozlowski Cc: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Long Wan , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/4] dt-bindings: mmc: spacemit,sdhci: Add tx delay property Message-ID: <20260904203219-GKC1974@kernel.org> References: <20260902-07-k3-sdhci-dts-v1-0-4e7909cf4233@kernel.org> <20260902-07-k3-sdhci-dts-v1-2-4e7909cf4233@kernel.org> <20260903-tactful-scorpion-from-nibiru-a4ebe2@quoll> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260903-tactful-scorpion-from-nibiru-a4ebe2@quoll> X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Hi Krzysztof, On 15:00 Thu 03 Sep , Krzysztof Kozlowski wrote: > On Wed, Sep 02, 2026 at 07:03:13AM +0000, Yixun Lan wrote: > > From: Long Wan > > > > Introduce a vendor specific property to configure the step count of TX > > delay line which should be applied before RX tuning, compensating for > > board level trace differences. The TX delay line result comes from test > > out of real board which vary from different hardware layout. > > > > Signed-off-by: Long Wan > > Signed-off-by: Yixun Lan > > --- > > Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml | 10 ++++++++++ > > 1 file changed, 10 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml > > index f35bf7ce08dd..3399a2d076dc 100644 > > --- a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml > > +++ b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml > > @@ -63,6 +63,16 @@ properties: > > pinctrl-1: > > description: Optional pinctrl state for 1.8V UHS operation with "uhs" name > > > > + spacemit,tx-delay: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + minimum: 0 > > + maximum: 255 > > default: 0, I guess? > It's actually 127, I will fix it in next version Also in my second thought, I will change the data type to uint8 then drop this additional minimum/maximum property, which will also simplify the code with device_property_read_u8() a bit -- Yixun Lan (dlan) _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv