From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: [PATCH 1/6] spi/s3c64xx: Flush FIFOs prior to cleaning up transfer Date: Fri, 27 Sep 2013 20:44:04 +0100 Message-ID: <1380311049-973-1-git-send-email-broonie@kernel.org> Return-path: Received: from cassiel.sirena.org.uk ([80.68.93.111]:57285 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750981Ab3I0Toj (ORCPT ); Fri, 27 Sep 2013 15:44:39 -0400 Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Kukjin Kim Cc: linux-samsung-soc@vger.kernel.org, linux-spi@vger.kernel.org, linaro-kernel@lists.linaro.org, =?UTF-8?q?=C5=81ukasz=20Czerwi=C5=84ski?= , Mark Brown From: Mark Brown Ensure that the FIFOs are fully drained before we deassert /CS or do any delays that have been requested in order to ensure that the behaviour visible on the bus matches that which was requested by the caller. Signed-off-by: Mark Brown --- drivers/spi/spi-s3c64xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 229c6b9..2e267ce 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -960,6 +960,8 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master, goto out; } + flush_fifo(sdd); + if (xfer->delay_usecs) udelay(xfer->delay_usecs); @@ -972,8 +974,6 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master, } msg->actual_length += xfer->len; - - flush_fifo(sdd); } out: -- 1.8.4.rc3