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From: "Bryan Wu" <cooloney.lkml@gmail.com>
To: "David Brownell" <david-b@pacbell.net>
Cc: "Bryan Wu" <bryan.wu@analog.com>,
	spi-devel-general@lists.sourceforge.net,
	linux-kernel@vger.kernel.org
Subject: Re: [spi-devel-general] [PATCH 2/6] [Blackfin] SPI driver: Use SPI device name to do gpio peripheral request
Date: Thu, 31 Jan 2008 11:12:26 +0800	[thread overview]
Message-ID: <386072610801301912u696310d1q55e90a0d93f4f16c@mail.gmail.com> (raw)
In-Reply-To: <200801301348.43275.david-b@pacbell.net>

On Jan 31, 2008 5:48 AM, David Brownell <david-b@pacbell.net> wrote:
> On Wednesday 30 January 2008, Bryan Wu wrote:
> > When got some gpio conflict, it is easy to know which SPI device driver not just got "bfin-spi"
> >
> > Signed-off-by: Bryan Wu <bryan.wu@analog.com>
> > ---
> >  drivers/spi/spi_bfin5xx.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
> > index 8fd1365..c3f9ed4 100644
> > --- a/drivers/spi/spi_bfin5xx.c
> > +++ b/drivers/spi/spi_bfin5xx.c
> > @@ -1176,7 +1176,7 @@ static int setup(struct spi_device *spi)
> >       if ((chip->chip_select_num > 0)
> >               && (chip->chip_select_num <= spi->master->num_chipselect))
> >               peripheral_request(ssel[spi->master->bus_num]
> > -                     [chip->chip_select_num-1], DRV_NAME);
> > +                     [chip->chip_select_num-1], spi->modalias);
>
> Better:  spi->dev.bus_id (always unique) not spi->modalias (isn't) ...
>

spi->dev.bus_id is just  number, while spi->modalias usually is a
string name which it is more meaningful.
In most time, modalias is easier for us to locate the gpio conflict.

Thanks
-Bryan Wu

  reply	other threads:[~2008-01-31  3:12 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-30  9:13 [PATCH 0/6] [Blackfin] SPI driver updates Bryan Wu
2008-01-30  9:13 ` [PATCH 1/6] [Blackfin] SPI driver: remove useless return status check in restore_state function pointed by Michael Bryan Wu
2008-01-30  9:13 ` [PATCH 2/6] [Blackfin] SPI driver: Use SPI device name to do gpio peripheral request Bryan Wu
2008-01-30 21:48   ` [spi-devel-general] " David Brownell
2008-01-31  3:12     ` Bryan Wu [this message]
2008-01-30  9:13 ` [PATCH 3/6] [Blackfin] SPI driver: fix bug - PBX cannot work with this SPI framework driver Bryan Wu
2008-01-30  9:13 ` [PATCH 4/6] [Blackfin] SPI driver: fix bug - SPI duplex operation can read a dummy byte at the first transfer Bryan Wu
2008-01-30  9:13 ` [PATCH 5/6] [Blackfin] SPI driver: Fix bug SPI_write should not return until complete bit is set Bryan Wu
2008-01-30  9:13 ` [PATCH 6/6] [Blackfin] SPI driver: use simpler comment headers and strip out information that is maintained in the scm's log Bryan Wu
2008-01-31 20:50 ` [spi-devel-general] [PATCH 0/6] [Blackfin] SPI driver updates David Brownell
2008-02-01  9:41   ` Bryan Wu

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