Re: [PATCH v2 2/2] serial: 8250_dw: add ACPI support for uart on Hisilicon Hip05 soc

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Thu, 2016-06-30 at 12:38 +0300, Andy Shevchenko wrote:
> On Thu, 2016-06-30 at 09:27 +0800, Kefeng Wang wrote:
> > Add ACPI identifier for UART on Hisilicon Hip05 soc, be careful
> > that it is not 16550 compatibal.
> > 
> > Meanwhile, set dw8250_serial_out32 to keep consistent between
> > serial_out
> > and serial_in in ACPI.
> > 
> > Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> > ---
> >  drivers/tty/serial/8250/8250_dw.c | 13 +++++++++++--
> >  1 file changed, 11 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/tty/serial/8250/8250_dw.c
> > b/drivers/tty/serial/8250/8250_dw.c
> > index 65f3da7..096431b 100644
> > --- a/drivers/tty/serial/8250/8250_dw.c
> > +++ b/drivers/tty/serial/8250/8250_dw.c
> > @@ -272,6 +272,12 @@ static bool dw8250_idma_filter(struct dma_chan
> > *chan, void *param)
> >  	return param == chan->device->dev->parent;
> >  }
> >  
> > +/* non 16550 compatible id list*/
> > +static const struct acpi_device_id non_16550_id_list[] = {
> > +	{ "HISI0031", 0 },
> > +	{ },
> > +};
> > +
> 
> On first glance it looks redundant, see below.

Oh, wait, this is still valid, but the better solution is to use device
properties for the rest except yours!

I will prepare patch later this week or at the beginning of next week if
you are in hurry, otherwise I would postpone this a bit (anyway it will
not make v4.8 cycle).

-- 

Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
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