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 X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2CC9C43214 for ; Tue, 24 Aug 2021 02:59:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BD2A161184 for ; Tue, 24 Aug 2021 02:59:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234732AbhHXDAV (ORCPT ); Mon, 23 Aug 2021 23:00:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:57200 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234662AbhHXC7q (ORCPT ); Mon, 23 Aug 2021 22:59:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 88FDF6120A; Tue, 24 Aug 2021 02:58:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629773932; bh=/6wqijHX82zA4YodiCrdGnipfX4S1JEquuTTeJWDZ08=; h=From:To:Cc:Subject:Date:From; b=f5ItA+iGmQQ3wSZcZEG9Z3Ve4DIBvgE3U58c9ugWXXV95tf9zOuQ84vEwdCQ/5SPa CFOGj+e+yLw1UpiNzPoAYLcbHR+SYHz0qvOc8IVg7KtrKGXqtXKc6qQpoey8XXrG+M u/5fTi5CgOtcQSszy1pY0T9gn0IouBMgEXx0eruNO0fwRc9OtOCd0BdeDuY3mEL/+c fnbarRc0PATKqq8E/wDDQPUpLupN7tFjNm5QHh9eC1iQ3XdedsycRMiCTg3cOP7Mmi OEEtg9apWRV3Yv4vAR31CLTVqD2/dzzmF9/z11O38l8VlL6wANzfqdSG7afPLb5d4E d3eBKQR9ff3ZA== From: Sasha Levin To: stable@vger.kernel.org, sbhanu@codeaurora.org Cc: Adrian Hunter , Ulf Hansson , linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: FAILED: Patch "mmc: sdhci-msm: Update the software timeout value for sdhc" failed to apply to 4.4-stable tree Date: Mon, 23 Aug 2021 22:58:50 -0400 Message-Id: <20210824025850.660014-1-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 67b13f3e221ed81b46a657e2b499bf8b20162476 Mon Sep 17 00:00:00 2001 From: Shaik Sajida Bhanu Date: Fri, 16 Jul 2021 17:16:14 +0530 Subject: [PATCH] mmc: sdhci-msm: Update the software timeout value for sdhc Whenever SDHC run at clock rate 50MHZ or below, the hardware data timeout value will be 21.47secs, which is approx. 22secs and we have a current software timeout value as 10secs. We have to set software timeout value more than the hardware data timeout value to avioid seeing the below register dumps. [ 332.953670] mmc2: Timeout waiting for hardware interrupt. [ 332.959608] mmc2: sdhci: ============ SDHCI REGISTER DUMP =========== [ 332.966450] mmc2: sdhci: Sys addr: 0x00000000 | Version: 0x00007202 [ 332.973256] mmc2: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000001 [ 332.980054] mmc2: sdhci: Argument: 0x00000000 | Trn mode: 0x00000027 [ 332.986864] mmc2: sdhci: Present: 0x01f801f6 | Host ctl: 0x0000001f [ 332.993671] mmc2: sdhci: Power: 0x00000001 | Blk gap: 0x00000000 [ 333.000583] mmc2: sdhci: Wake-up: 0x00000000 | Clock: 0x00000007 [ 333.007386] mmc2: sdhci: Timeout: 0x0000000e | Int stat: 0x00000000 [ 333.014182] mmc2: sdhci: Int enab: 0x03ff100b | Sig enab: 0x03ff100b [ 333.020976] mmc2: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 [ 333.027771] mmc2: sdhci: Caps: 0x322dc8b2 | Caps_1: 0x0000808f [ 333.034561] mmc2: sdhci: Cmd: 0x0000183a | Max curr: 0x00000000 [ 333.041359] mmc2: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x00000000 [ 333.048157] mmc2: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 [ 333.054945] mmc2: sdhci: Host ctl2: 0x00000000 [ 333.059657] mmc2: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x0000000ffffff218 [ 333.067178] mmc2: sdhci_msm: ----------- VENDOR REGISTER DUMP ----------- [ 333.074343] mmc2: sdhci_msm: DLL sts: 0x00000000 | DLL cfg: 0x6000642c | DLL cfg2: 0x0020a000 [ 333.083417] mmc2: sdhci_msm: DLL cfg3: 0x00000000 | DLL usr ctl: 0x00000000 | DDR cfg: 0x80040873 [ 333.092850] mmc2: sdhci_msm: Vndr func: 0x00008a9c | Vndr func2 : 0xf88218a8 Vndr func3: 0x02626040 [ 333.102371] mmc2: sdhci: ============================================ So, set software timeout value more than hardware timeout value. Signed-off-by: Shaik Sajida Bhanu Acked-by: Adrian Hunter Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1626435974-14462-1-git-send-email-sbhanu@codeaurora.org Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-msm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index e44b7a66b73c..290a14cdc1cf 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -2089,6 +2089,23 @@ static void sdhci_msm_cqe_disable(struct mmc_host *mmc, bool recovery) sdhci_cqe_disable(mmc, recovery); } +static void sdhci_msm_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) +{ + u32 count, start = 15; + + __sdhci_set_timeout(host, cmd); + count = sdhci_readb(host, SDHCI_TIMEOUT_CONTROL); + /* + * Update software timeout value if its value is less than hardware data + * timeout value. Qcom SoC hardware data timeout value was calculated + * using 4 * MCLK * 2^(count + 13). where MCLK = 1 / host->clock. + */ + if (cmd && cmd->data && host->clock > 400000 && + host->clock <= 50000000 && + ((1 << (count + start)) > (10 * host->clock))) + host->data_timeout = 22LL * NSEC_PER_SEC; +} + static const struct cqhci_host_ops sdhci_msm_cqhci_ops = { .enable = sdhci_msm_cqe_enable, .disable = sdhci_msm_cqe_disable, @@ -2438,6 +2455,7 @@ static const struct sdhci_ops sdhci_msm_ops = { .irq = sdhci_msm_cqe_irq, .dump_vendor_regs = sdhci_msm_dump_vendor_regs, .set_power = sdhci_set_power_noreg, + .set_timeout = sdhci_msm_set_timeout, }; static const struct sdhci_pltfm_data sdhci_msm_pdata = { -- 2.30.2