From: Michael Welling <mwelling-EkmVulN54Sk@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] spi: omap2-mcspi: Fix native cs with new set_cs
Date: Wed, 20 May 2015 21:07:09 -0500 [thread overview]
Message-ID: <20150521020709.GA14258@deathray> (raw)
In-Reply-To: <20150512191758.GX3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
On Tue, May 12, 2015 at 08:17:58PM +0100, Mark Brown wrote:
> On Tue, May 12, 2015 at 12:38:57PM -0500, Michael Welling wrote:
> > GPIO chip select patch series appears to have broken the native chip select
> > support. This patch pulls the manual native chip select toggling out of
> > the transfer_one routine and adds a set_cs routine.
>
> Applied, thanks
It appears that in haste, this fix for the native cs support broke
the GPIO chip select support that I was originally shooting for.
[ 2.653658] mcp23s08 spi1.1: TXS timed out
[ 2.657961] mcp23s08 spi1.1: SPI transfer failed: -5
[ 2.663305] spi_master spi1: failed to transfer one message from queue
[ 2.670172] mcp23s08 spi1.1: can't setup chip 64, --> -5
[ 2.675784] GPIO chip mcp23s08: gpiochip_unexport: status -19
My guess is that the set_cs needs to be called even when toggling as GPIO.
How should I handle this?
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next prev parent reply other threads:[~2015-05-21 2:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-12 17:38 [PATCH] spi: omap2-mcspi: Fix native cs with new set_cs Michael Welling
2015-05-12 18:57 ` Nishanth Menon
[not found] ` <55524D20.2050203-l0cyMroinI0@public.gmane.org>
2015-05-12 19:19 ` Mark Brown
2015-05-12 19:21 ` Nishanth Menon
2015-05-12 19:17 ` Mark Brown
[not found] ` <20150512191758.GX3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-21 2:07 ` Michael Welling [this message]
2015-05-21 10:18 ` Mark Brown
2015-05-21 21:04 ` Michael Welling
2015-05-21 21:16 ` Mark Brown
2015-05-21 23:48 ` Michael Welling
2015-05-22 12:25 ` Mark Brown
2015-05-22 15:31 ` Michael Welling
2015-05-24 2:13 ` [PATCH 0/4] spi: omap2-mcspi: Fixes for recent updates Michael Welling
2015-05-24 2:13 ` [PATCH 1/4] spi: omap2-mcspi: Remove unnecessary delay Michael Welling
2015-05-24 2:13 ` [PATCH 2/4] spi: omap2-mcspi: Fix set_cs function for active high Michael Welling
2015-05-24 2:13 ` [PATCH 3/4] spi: omap2-mcspi: Fix GPIO chip select support Michael Welling
2015-05-24 2:13 ` [PATCH 4/4] spi: omap2-mcspi: Handle error on gpio_request Michael Welling
2015-05-24 8:13 ` Nicholas Mc Guire
2015-05-24 16:52 ` Michael Welling
[not found] ` <1432433625-23407-1-git-send-email-mwelling-EkmVulN54Sk@public.gmane.org>
2015-05-25 12:00 ` [PATCH 0/4] spi: omap2-mcspi: Fixes for recent updates Mark Brown
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