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Wed, 25 Mar 2020 15:34:21 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 50D32100034; Wed, 25 Mar 2020 15:34:20 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 3AE022B2527; Wed, 25 Mar 2020 15:34:20 +0100 (CET) Received: from localhost (10.75.127.50) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 25 Mar 2020 15:34:19 +0100 From: Ludovic Barre To: Ulf Hansson , Rob Herring Subject: [PATCH V2 1/2] mmc: mmci_sdmmc: fix clear busyd0end irq flag Date: Wed, 25 Mar 2020 15:34:08 +0100 Message-ID: <20200325143409.13005-2-ludovic.barre@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325143409.13005-1-ludovic.barre@st.com> References: <20200325143409.13005-1-ludovic.barre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.50] X-ClientProxiedBy: SFHDAG2NODE1.st.com (10.75.127.4) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.645 definitions=2020-03-25_07:2020-03-24, 2020-03-25 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200325_073431_723065_E4325868 X-CRM114-Status: GOOD ( 15.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Torgue , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org, Ludovic Barre , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The busyd0 line transition can be very fast. The busy request may be completed by busy_d0end without wait the busy_d0 steps. The busyd0end irq flag must be cleared even if no busy_status. Signed-off-by: Ludovic Barre --- drivers/mmc/host/mmci_stm32_sdmmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c index f76e82f8f12f..d33e62bd6153 100644 --- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -358,11 +358,11 @@ static bool sdmmc_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) if (host->busy_status) { writel_relaxed(mask & ~host->variant->busy_detect_mask, base + MMCIMASK0); - writel_relaxed(host->variant->busy_detect_mask, - base + MMCICLEAR); host->busy_status = 0; } + writel_relaxed(host->variant->busy_detect_mask, base + MMCICLEAR); + return true; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel