[PATCH 2/2] isp1760: Fix endianness-sensitivity in of_isp1760_probe()
Grant Likely
grant.likely at secretlab.ca
Thu Sep 15 01:46:29 EST 2011
On Wed, Sep 14, 2011 at 02:57:13PM +0100, Dave Martin wrote:
> Data read direct from device tree properties will be in the device
> tree's native endianness (i.e., big-endian).
>
> This patch uses of_property_read_u32() to read the bus-width
> property in host byte order instead.
>
> Signed-off-by: Dave Martin <dave.martin at linaro.org>
> Acked-by: Pawel Moll <pawel.moll at arm.com>
> ---
> drivers/usb/host/isp1760-if.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
> index 69ee32c..fa99c27 100644
> --- a/drivers/usb/host/isp1760-if.c
> +++ b/drivers/usb/host/isp1760-if.c
> @@ -39,8 +39,8 @@ static int of_isp1760_probe(struct platform_device *dev)
> int virq;
> resource_size_t res_len;
> int ret;
> - const unsigned int *prop;
> unsigned int devflags = 0;
> + u32 bus_width = 0;
>
> ret = of_address_to_resource(dp, 0, &memory);
> if (ret)
> @@ -64,8 +64,8 @@ static int of_isp1760_probe(struct platform_device *dev)
> devflags |= ISP1760_FLAG_ISP1761;
>
> /* Some systems wire up only 16 of the 32 data lines */
> - prop = of_get_property(dp, "bus-width", NULL);
> - if (prop && *prop == 16)
> + of_property_read_u32(dp, "bus-width", bus_width);
Shouldn't this be '&bus_width'?
g.
> + if (bus_width == 16)
> devflags |= ISP1760_FLAG_BUS_WIDTH_16;
>
> if (of_get_property(dp, "port1-otg", NULL) != NULL)
> --
> 1.7.4.1
>
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