Re: [PATCH 01/17] fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address.

[Moritz Fischer]

Hi Wu,

On Tue, Apr 02, 2019 at 12:38:45PM +0800, Wu Hao wrote:
> On Mon, Apr 01, 2019 at 12:54:47PM -0700, Moritz Fischer wrote:
> > Hi Wu,
> > 
> > On Mon, Mar 25, 2019 at 11:07:28AM +0800, Wu Hao wrote:
> > > FME_PR_INTFC_ID is used as compat_id for fpga manager and region,
> > > but high 64 bits and low 64 bits of the compat_id are swapped by
> > > mistake. This patch fixes this problem by fixing register address.
> > > 
> > > Signed-off-by: Wu Hao <hao.wu@xxxxxxxxx>
Acked-by: Moritz Fischer <mdf@xxxxxxxxxx>
> > > ---
> > >  drivers/fpga/dfl-fme-mgr.c | 4 ++--
> > >  1 file changed, 2 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl-fme-mgr.c
> > > index 76f3770..b3f7eee 100644
> > > --- a/drivers/fpga/dfl-fme-mgr.c
> > > +++ b/drivers/fpga/dfl-fme-mgr.c
> > > @@ -30,8 +30,8 @@
> > >  #define FME_PR_STS		0x10
> > >  #define FME_PR_DATA		0x18
> > >  #define FME_PR_ERR		0x20
> > > -#define FME_PR_INTFC_ID_H	0xA8
> > > -#define FME_PR_INTFC_ID_L	0xB0
> > > +#define FME_PR_INTFC_ID_L	0xA8
> > > +#define FME_PR_INTFC_ID_H	0xB0
> > 
> > Does this handle endianess correct?
> 
> Hi Moritz,
> 
> This is just a bug fixing for wrong offsets given to these 2 registers
> according to spec. I think this is not endianess related, and per my
> understanding we don't need more code on endianess handling as that
> should be done inside the readq function already. :)
> 
> Thanks
> Hao

Thanks for clarifying,

Moritz