2013/5/2 Yang, Wenyou <Wenyou.Yang@xxxxxxxxx>:Hi, Joachim,
-----Original Message-----This patch hasn't still applied in any upstream git tree, so Atmel spi master doesn't work.
From: Joachim Eastwood [mailto:manabian@xxxxxxxxx]
Sent: 2013å3æ7æ 20:31
To: Yang, Wenyou
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; grant.likely@xxxxxxxxxxxx; Ferre,
Nicolas; plagnioj@xxxxxxxxxxxx; richard.genoud@xxxxxxxxx; Lin, JM;
spi-devel-general@xxxxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v6 01/16] spi/spi-atmel: fix probing failure after
xfer->speed_hz set
On 7 March 2013 04:26, Wenyou Yang <wenyou.yang@xxxxxxxxx> wrote:commit: 059b8ffeee5b427949872bb6ed5db5ae0788054estruct spi_message *msg)
cause the atmel spi probing failure.
Signed-off-by: Wenyou Yang <wenyou.yang@xxxxxxxxx>
Cc: spi-devel-general@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
drivers/spi/spi-atmel.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 656d137..1eca815 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -846,9 +846,9 @@ static int atmel_spi_transfer(struct spi_device *spi,
}yet\n");
}
- /* FIXME implement these protocol options!! */
- if (xfer->speed_hz) {
- dev_dbg(&spi->dev, "no protocol options
+ if (xfer->speed_hz < spi->max_speed_hz) {speed\n");
+ dev_dbg(&spi->dev,
+ "speed in transfer less than bus
return -ENOPROTOOPT;
}
I sent a similar patch to spi-devl a while ago, which Grant said he applied.
https://patchwork.kernel.org/patch/2165301/
Can't find the patch in any upstream git tree so I guess Grant hasn't
pushed it yet.
Could you help do some ping it?
it's in linux-next:
3d3522604a5557e80fdcab61c54bd04eaf15b525
merged from spi-current/spi/merge