Message ID | E1ec8Im-0003vW-Gx@debutante (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Received: from heliosphere.sirena.org.uk ([2a01:7e01::f03c:91ff:fed4:a3b6]) by merlin.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ec8JZ-0007fm-Mp for linux-arm-kernel@lists.infradead.org; Thu, 18 Jan 2018 11:25:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=Fdtatu+vof7MNrrUGJ3NHL22sK6rqAiMuj62Mz9hiXU=; b=XfdktzqJABCU tcaXVgaVwob/lRjOoX+4s88oHtBhaiao6mnWzKLzHe1EGuDZC3E32KU6Bmm1vfcp8IXAQyuYi14c2 BULXLXyxv3O4yY0qH5kcfm0+Vd+Rax2vUI8su8rEjSkqaVdik0RVZjCEFNiVEhH+DAkmgkwDFgfJx vP+84=; Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by heliosphere.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from <broonie@sirena.org.uk>) id 1ec8Im-0007Kv-VQ; Thu, 18 Jan 2018 11:24:13 +0000 Received: from broonie by debutante with local (Exim 4.90) (envelope-from <broonie@sirena.org.uk>) id 1ec8Im-0003vW-Gx; Thu, 18 Jan 2018 11:24:12 +0000 From: Mark Brown <broonie@kernel.org> To: Maxime Chevallier <maxime.chevallier@smile.fr> Subject: Applied "spi: a3700: Clear DATA_OUT when performing a read" to the spi tree In-Reply-To: <1516205728-3256-2-git-send-email-maxime.chevallier@smile.fr> Message-Id: <E1ec8Im-0003vW-Gx@debutante> Date: Thu, 18 Jan 2018 11:24:12 +0000 X-Bad-Reply: In-Reply-To but no 'Re:' in Subject. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: gregory.clement@free-electrons.com, broonie@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c index 77fe55ce790c..4857b0119556 100644 --- a/drivers/spi/spi-armada-3700.c +++ b/drivers/spi/spi-armada-3700.c @@ -607,6 +607,11 @@ static int a3700_spi_transfer_one(struct spi_master *master, a3700_spi_header_set(a3700_spi); if (xfer->rx_buf) { + /* Clear WFIFO, since it's last 2 bytes are shifted out during + * a read operation + */ + spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, 0); + /* Set read data length */ spireg_write(a3700_spi, A3700_SPI_IF_DIN_CNT_REG, a3700_spi->buf_len);