From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B83D18DB24; Mon, 10 Mar 2025 17:37:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741628259; cv=none; b=kMNYQuaym1ztGzGLleTrGg1ksjjZNhRV1+ks4Hb5xYMOzxOnMrVVeYoUle7tHn/13VVqxISP+PUhnUjjwnIwHA5H9NH+bHEcQKLPLSCMLWBtEaygo9yf+j8uz8k6cdfwJWVhsfDGFfvhfWCp3e69awkbXn9IErmys2N8X2Ax5DY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741628259; c=relaxed/simple; bh=xxktpmcwi7fR87RPx3kZT2ZVe3iyhIdF3b43TOGBrL8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fB3ZCKL8ckHW1/S9S8lPi2sqtYHsSVgYehiYmg4W3O6l5TYLrlyHEisUui3xaq1SEfij/OGVeWiP8MTLEJ4uCe7gMHdJI/BKV7PRRwCoN6c0zg7PQJKN1mmeZQc78nyJg+ICTIVv8Us72Q0BLsC9ERT2yiNkxGcDtCC+ke6t+p8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xObdGj2f; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xObdGj2f" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1437BC4CEE5; Mon, 10 Mar 2025 17:37:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741628259; bh=xxktpmcwi7fR87RPx3kZT2ZVe3iyhIdF3b43TOGBrL8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xObdGj2fkJtQ3nHC2XU4lcw9t4m2NBNhgceJWghEtebs+hwtgaVIZU2i1psCE7u64 IRDCE84zwU+NFB3bfww3MSPaxEgi63NR438GIrJjzYMcQQsirp2txgfHc/poMKwLwW rZ84Yj3YTzgQzv6StXDS0atrcN3pM3q5jG58cFj4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ralf Schlatterbeck , Mark Brown , Stefan Wahren Subject: [PATCH 6.6 143/145] spi-mxs: Fix chipselect glitch Date: Mon, 10 Mar 2025 18:07:17 +0100 Message-ID: <20250310170440.528783076@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170434.733307314@linuxfoundation.org> References: <20250310170434.733307314@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ralf Schlatterbeck commit 269e31aecdd0b70f53a05def79480f15cbcc0fd6 upstream. There was a change in the mxs-dma engine that uses a new custom flag. The change was not applied to the mxs spi driver. This results in chipselect being deasserted too early. This fixes the chipselect problem by using the new flag in the mxs-spi driver. Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag") Signed-off-by: Ralf Schlatterbeck Link: https://msgid.link/r/20240202115330.wxkbfmvd76sy3a6a@runtux.com Signed-off-by: Mark Brown Cc: Stefan Wahren Signed-off-by: Greg Kroah-Hartman --- drivers/spi/spi-mxs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -39,6 +39,7 @@ #include #include #include +#include #define DRIVER_NAME "mxs-spi" @@ -252,7 +253,7 @@ static int mxs_spi_txrx_dma(struct mxs_s desc = dmaengine_prep_slave_sg(ssp->dmach, &dma_xfer[sg_count].sg, 1, (flags & TXRX_WRITE) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + DMA_PREP_INTERRUPT | MXS_DMA_CTRL_WAIT4END); if (!desc) { dev_err(ssp->dev,