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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1143C67871 for ; Mon, 24 Oct 2022 19:55:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233848AbiJXTzO (ORCPT ); Mon, 24 Oct 2022 15:55:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233821AbiJXTxw (ORCPT ); Mon, 24 Oct 2022 15:53:52 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E9A3A3BA8; Mon, 24 Oct 2022 11:17:58 -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 ams.source.kernel.org (Postfix) with ESMTPS id 37B58B8170D; Mon, 24 Oct 2022 12:34:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85C2BC433D6; Mon, 24 Oct 2022 12:34:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666614848; bh=CAaygUI3d5Iwg9TpDcUtziCnjlVX7gq+/9M0cwLO+2o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lpHatSwTkTq0BnJgqBqfarPO6e8YptF9e1mVxusf/2p+uRQMCVy3MoEBcaaMrqR3l 8I08WMXEHZTfPJRp9xtESwLMGi9bn4QOogWNYacx8gte9IoFjNhbl13j095ivHMda+ jl7znAelQKZ+ZKxScqXTcRT75yMek+jWIrcrnBOQ= 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 5.15 026/530] mmc: sdhci-sprd: Fix minimum clock limit Date: Mon, 24 Oct 2022 13:26:10 +0200 Message-Id: <20221024113046.203745254@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024113044.976326639@linuxfoundation.org> References: <20221024113044.976326639@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 controller") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221011104935.10980-1-wenchao.chen666@gmail.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 @@ -296,7 +296,7 @@ static unsigned int sdhci_sprd_get_max_c static unsigned int sdhci_sprd_get_min_clock(struct sdhci_host *host) { - return 400000; + return 100000; } static void sdhci_sprd_set_uhs_signaling(struct sdhci_host *host,