From nobody Fri Dec 19 16:01:56 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50293C433FE for ; Sat, 22 Oct 2022 07:41:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230516AbiJVHl2 (ORCPT ); Sat, 22 Oct 2022 03:41:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231210AbiJVHkj (ORCPT ); Sat, 22 Oct 2022 03:40:39 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C6DB465001; Sat, 22 Oct 2022 00:38:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 55B1860ADC; Sat, 22 Oct 2022 07:36:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F34CC433D6; Sat, 22 Oct 2022 07:36:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666424213; bh=lVh1oP4UqEge0pFZJpJr/ff3E2QK73mfpro3qwWesks=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OrQbbhfT4vKiJph0qERXFwuqMtIJDbHoo2UYG7koaBzqr4dwLDfTcFJrmFtXH2a3m 4R5lQG6ysyvNCS57u6EZZMdUO3fQrPvgEQ8UCUxNj+mRD06JxR8aQdsdtQED/f3FiD uLrhXd3WY/A6ZG5hYRLUw7l9CAxCcUbyidEb7icw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wenchao Chen , Adrian Hunter , Ulf Hansson Subject: [PATCH 5.19 034/717] mmc: sdhci-sprd: Fix minimum clock limit Date: Sat, 22 Oct 2022 09:18:33 +0200 Message-Id: <20221022072421.181001786@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221022072415.034382448@linuxfoundation.org> References: <20221022072415.034382448@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Wenchao Chen commit 6e141772e6465f937458b35ddcfd0a981b6f5280 upstream. The Spreadtrum controller supports 100KHz minimal clock rate, which means that the current value 400KHz is wrong. Unfortunately this has also lead to fail to initialize some cards, which are allowed to require 100KHz to work. So, let's fix the problem by changing the minimal supported clock rate to 100KHz. Signed-off-by: Wenchao Chen Acked-by: Adrian Hunter Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host contro= ller") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221011104935.10980-1-wenchao.chen666@gmai= l.com [Ulf: Clarified to commit-message] Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/sdhci-sprd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -309,7 +309,7 @@ static unsigned int sdhci_sprd_get_max_c =20 static unsigned int sdhci_sprd_get_min_clock(struct sdhci_host *host) { - return 400000; + return 100000; } =20 static void sdhci_sprd_set_uhs_signaling(struct sdhci_host *host,