[PATCH v3] net/smsc911x: add device tree probe support
Shawn Guo
shawn.guo at freescale.com
Fri Sep 9 07:48:57 EDT 2011
On Thu, Sep 08, 2011 at 03:59:46PM +0100, Dave Martin wrote:
> Hi Shawn,
>
> On Sun, Jul 31, 2011 at 02:26:00AM +0800, Shawn Guo wrote:
> > It adds device tree probe support for smsc911x driver.
> >
> > Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> > Cc: Grant Likely <grant.likely at secretlab.ca>
> > Cc: Steve Glendinning <steve.glendinning at smsc.com>
> > Cc: David S. Miller <davem at davemloft.net>
> > Reviewed-by: Grant Likely <grant.likely at secretlab.ca>
> > ---
> > Changes since v2:
> > * Fix a typo in smsc911x.txt
> >
> > Changes since v1:
> > * Instead of getting irq line from gpio number, it use irq domain
> > to keep platform_get_resource(IORESOURCE_IRQ) works for dt too.
> > * Use 'lan9115' the first model that smsc911x supports in the match
> > table
> > * Use reg-shift and reg-io-width which already used in of_serial for
> > shift and access size binding
>
> When using this patch with vexpress, I found that 16-bit register access
> mode doesn't seem to be getting set correctly.
>
> Can you take a look at this additional patch and let me know if it looks
> correct?
>
> Cheers
> ---Dave
>
> From: Dave Martin <dave.martin at linaro.org>
> Date: Wed, 7 Sep 2011 17:26:31 +0100
> Subject: [PATCH] net/smsc911x: Correctly configure 16-bit register access from DT
>
> The SMSC911X_USE_16BIT needs to be set when using 16-bit register
> access. However, currently no flag is set if the DT doesn't specify
> 32-bit access.
>
> This patch should set the SMSC911X_USE_16BIT flag in a manner consistent
> with the documented DT bindings.
>
> Signed-off-by: Dave Martin <dave.martin at linaro.org>
> ---
Acked-by: Shawn Guo <shawn.guo at linaro.org>
> drivers/net/smsc911x.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
> index 75c08a5..1a35c25 100644
> --- a/drivers/net/smsc911x.c
> +++ b/drivers/net/smsc911x.c
> @@ -2121,6 +2121,8 @@ static int __devinit smsc911x_probe_config_dt(
> of_property_read_u32(np, "reg-io-width", &width);
> if (width == 4)
> config->flags |= SMSC911X_USE_32BIT;
> + else
> + config->flags |= SMSC911X_USE_16BIT;
>
> if (of_get_property(np, "smsc,irq-active-high", NULL))
> config->irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH;
> --
> 1.7.4.1
>
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