Hey Paul,
> > > diff --git a/drivers/staging/dwc2/core.h b/drivers/staging/dwc2/core.h
> > > index fc075a7..e771e40 100644
> > > --- a/drivers/staging/dwc2/core.h
> > > +++ b/drivers/staging/dwc2/core.h
> > > @@ -150,10 +150,11 @@ enum dwc2_lx_state {
> > > * are enabled
> > > * @reload_ctl: True to allow dynamic reloading of HFIR register during
> > > * runtime
> > > - * @ahb_single: This bit enables SINGLE transfers for remainder data in
> > > - * a transfer for DMA mode of operation.
> > > - * 0 - remainder data will be sent using INCR burst size
> > > - * 1 - remainder data will be sent using SINGLE burst size
> > > + * @ahbcfg: This field allows the default value of the GAHBCFG
> > > + * register to be overridden
> > > + * -1 - GAHBCFG value will not be overridden
> > > + * all others - GAHBCFG value will be overridden with
> > > + * this value
> > > * @otg_ver: OTG version supported
> > > * 0 - 1.3
> > > * 1 - 2.0
> > Shouldn't this mention that a few of the bits in the register cannot be
> > set like this?
>
> I could have added a comment along the lines of "see the HSOTG databook
> for valid values for this register". But e.g. the value used by the
> Broadcom SOC is not documented in the Synopsys databook. I'm guessing
> they made some enhancement to our core. So I don't even know what bits
> cannot be set in this register.
With "cannot be set", I meant the bits that are masked out by the driver
code (e.g., GAHBCFG_CTRL_MASK). I'll add a remark along those lines to
my "improve comments" patch I have queued, since your patch is already
picked up by Greg.
Gr.
Matthijs
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