From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joachim Eastwood Subject: [PATCH] spi/atmel: fix speed_hz check in atmel_spi_transfer() Date: Tue, 19 Feb 2013 22:44:57 +0100 Message-ID: <1361310297-28002-1-git-send-email-manabian@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Joachim Eastwood , nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org To: grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-spi.vger.kernel.org atmel_spi_transfer() would check speed_hz and fail if the speed was changed in the transfer. After commit "spi: make sure all transfer has proper speed set" this would happen on all transfers. Change speed_hz check to only fail if a lower speed than max is requested. Signed-off-by: Joachim Eastwood --- Hi Grant, Fix for spi-atmel as per your suggestion; check if speed_hz is less than bus max speed. regards Joachim Eastwood drivers/spi/spi-atmel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 656d137..80f5867 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -847,8 +847,8 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) } /* FIXME implement these protocol options!! */ - if (xfer->speed_hz) { - dev_dbg(&spi->dev, "no protocol options yet\n"); + if (xfer->speed_hz < spi->max_speed_hz) { + dev_dbg(&spi->dev, "can't change speed in transfer\n"); return -ENOPROTOOPT; } -- 1.8.0 ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb