On Wed, Feb 28, 2018 at 05:06:57PM -0600, Alan Tull wrote:
> On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao <hao.wu@xxxxxxxxx> wrote:
>
> Hi Hao,
>
> > This patch adds compat_id support when driver creates the platform
> > device for dfl-fme-region. It allows dfl-fme-region platform driver
> > to create fpga-region with correct compat_id.
> >
> > Signed-off-by: Wu Hao <hao.wu@xxxxxxxxx>
> > ---
> > drivers/fpga/dfl-fme-pr.c | 20 ++++++++++++++++++++
> > drivers/fpga/dfl-fme-pr.h | 3 +++
> > 2 files changed, 23 insertions(+)
> >
> > diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
> > index 526e90b..c17170b 100644
> > --- a/drivers/fpga/dfl-fme-pr.c
> > +++ b/drivers/fpga/dfl-fme-pr.c
> > @@ -314,6 +314,25 @@ static void fpga_fme_destroy_bridges(struct feature_platform_data *pdata)
> > }
> >
> > /**
> > + * fpga_fme_get_region_compat_id - read region compat_id from hardware
> > + *
> > + * @dev: fme device.
> > + */
> > +static struct fpga_region_compat_id
> > +fpga_fme_get_region_compat_id(struct device *dev)
> > +{
> > + struct fpga_region_compat_id compat_id;
> > + void __iomem *fme_pr;
> > +
> > + fme_pr = get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_PR_MGMT);
> > +
> > + compat_id.id_l = readq(fme_pr + FME_PR_INTFC_ID_L);
> > + compat_id.id_h = readq(fme_pr + FME_PR_INTFC_ID_H);
>
> I tried building for 32 bit ARM and ran into readq and writeq not
> being defined. v2 had proper '#indef readq/writeq', so looks like we
> need that after all.
Sorry, it's missing a header file for dfl-fme-pr.h, as some files don't include
dfl.h at this version. That header file has definitions for readq/writeq.
+#include <linux/io-64-nonatomic-lo-hi.h>
will fix it.
Thanks
Hao
> Alan
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