From patchwork Tue Nov 26 12:48:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy-ld Lu X-Patchwork-Id: 13885891 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 9D7F3D3B98C for ; Tue, 26 Nov 2024 12:54:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; 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Tue, 26 Nov 2024 05:50:53 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 26 Nov 2024 20:50:49 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 26 Nov 2024 20:50:49 +0800 From: Andy-ld Lu To: , , , , , CC: , , , , Andy-ld Lu Subject: [PATCH v2 2/2] mmc: mtk-sd: Add support for ignoring cmd response CRC Date: Tue, 26 Nov 2024 20:48:23 +0800 Message-ID: <20241126125041.16071-3-andy-ld.lu@mediatek.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20241126125041.16071-1-andy-ld.lu@mediatek.com> References: <20241126125041.16071-1-andy-ld.lu@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--4.369700-8.000000 X-TMASE-MatchedRID: yALcya1h5KX7W7/9wscjdRuZoNKc6pl+ju+GX08gELBKda7Cp9A+RkJW dVOufBPR/KZpBkEBJHqIY8ivHy/5E6XzgcphDfm8A9lly13c/gHt/okBLaEo+C8zQZ2rR/Op0Fi DqDlQgH4SIx4SDL9Y5uuLFZZYlisfHxPMjOKY7A8LbigRnpKlKZx+7GyJjhAUI51nWVDVVfWhFL FIsK0Cw+lupQ5Bsw7jcU72BTeNXW5Nk8cAoC9YSLojLyfylXvJqPdSBhdySgg0qsN/ix5JTJi88 butrgo98jae4OD13tAV7Mc+rowcVKtX/F0pBwVJjSV5hDFby7aUTGVAhB5EbQ== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--4.369700-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 78C610F20AEBBD1AD5EEE534EEE4D7022F688123028ED1F227EEF820CA4E8EB82000:8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241126_045059_167829_B03BE901 X-CRM114-Status: GOOD ( 12.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The current process flow does not handle MMC requests that are indicated to ignore the command response CRC. For instance, cmd12 and cmd48 from mmc_cqe_recovery() are marked to ignore CRC, but they are not matched to the appropriate response type in msdc_cmd_find_resp(). As a result, they are defaulted to 'MMC_RSP_NONE', which means no response is expected. This commit applies the flag 'MMC_RSP_R1B_NO_CRC' to fix the response type setting in msdc_cmd_find_resp() and adds the logic to ignore CRC in msdc_cmd_done(). Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Andy-ld Lu --- drivers/mmc/host/mtk-sd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index efb0d2d5716b..e2c385853eef 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -1097,11 +1097,12 @@ static inline u32 msdc_cmd_find_resp(struct msdc_host *host, u32 resp; switch (mmc_resp_type(cmd)) { - /* Actually, R1, R5, R6, R7 are the same */ + /* Actually, R1, R5, R6, R7 are the same */ case MMC_RSP_R1: resp = 0x1; break; case MMC_RSP_R1B: + case MMC_RSP_R1B_NO_CRC: resp = 0x7; break; case MMC_RSP_R2: @@ -1351,7 +1352,8 @@ static bool msdc_cmd_done(struct msdc_host *host, int events, * CRC error. */ msdc_reset_hw(host); - if (events & MSDC_INT_RSPCRCERR) { + if (events & MSDC_INT_RSPCRCERR && + mmc_resp_type(cmd) != MMC_RSP_R1B_NO_CRC) { cmd->error = -EILSEQ; host->error |= REQ_CMD_EIO; } else if (events & MSDC_INT_CMDTMO) {