From: David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
To: Daniel Ribeiro <drwyrm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Ned Forrester <nforrester-/d+BM93fTQY@public.gmane.org>,
spi-devel-general
<spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
openezx-devel
<openezx-devel-ZwoEplunGu3n3BO9LpVK+9i2O/JbrIOy@public.gmane.org>,
Eric Miao <eric.y.miao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel
<linux-arm-kernel-xIg/pKzrS19vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
Subject: Re: pxa2xx_spi: fix for SPI_CS_HIGH
Date: Fri, 8 May 2009 09:33:16 -0700 [thread overview]
Message-ID: <200905080933.17128.david-b@pacbell.net> (raw)
In-Reply-To: <1241790769.10342.35.camel@brutus>
On Friday 08 May 2009, Daniel Ribeiro wrote:
> Commit a7bb3909b3293d503211d7f6af8ed62c1644b686 introduces chipselect
> GPIO, and configures the CS polarity using SPI_CS_HIGH spi->mode flag,
> but the SPI_CS_HIGH is not allowed by setup().
>
> Signed-off-by: Daniel Ribeiro <drwyrm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
This doesn't need to merge before 2.6.31, right?
(That is, is is true that nothing in mainline is
yet *relyings* on CS_HIGH working with this driver?)
Assuming that's true, this patch needs to be updated to
apply properly against modebits changes in the MM tree.
>
> diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
> index 885194a..150f06b 100644
> --- a/drivers/spi/pxa2xx_spi.c
> +++ b/drivers/spi/pxa2xx_spi.c
> @@ -1186,7 +1186,7 @@ static int transfer(struct spi_device *spi, struct spi_message *msg)
> }
>
> /* the spi->mode bits understood by this driver: */
> -#define MODEBITS (SPI_CPOL | SPI_CPHA)
> +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH)
>
> static int setup_cs(struct spi_device *spi, struct chip_data *chip,
> struct pxa2xx_spi_chip *chip_info)
>
> --
> Daniel Ribeiro
>
>
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next prev parent reply other threads:[~2009-05-08 16:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-08 13:52 pxa2xx_spi: fix for SPI_CS_HIGH Daniel Ribeiro
2009-05-08 16:33 ` David Brownell [this message]
[not found] ` <200905080933.17128.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2009-05-08 18:46 ` Daniel Ribeiro
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