On Tue, Jul 22, 2014 at 04:45:03PM +0100, Lee Jones wrote:
> > > > > +static void st_dwc3_init(struct st_dwc3 *dwc3_data)
> > > > > +{
> > > > > + u32 reg = st_dwc3_readl(dwc3_data->glue_base, USB2_CLKRST_CTRL);
> > > > > +
> > > > > + reg |= aux_clk_en(1) | ext_cfg_reset_n(1) | xhci_revision(1);
> > > > > + reg &= ~sw_pipew_reset_n(1);
> > > >
> > > > 1? Better to add defines for these magic numbers. What is 1 anyway?
> > >
> > > They are just bit setting macros, I've converted them over to use BIT macro now,
> > > so it no longer takes a parameter.
> >
> > the macros are better, but make them upper case as everybody else.
>
> When you say that the macros are better, what do you mean?
>
> Defines do the job in a manner which is a great deal cleaner:
>
> #define AUX_CLK_EN BIT(0)
> #define SW_PIPEW_RESET_N BIT(4)
> #define EXT_CFG_RESET_N BIT(8)
> #define XHCI_REVISION BIT(12)
>
> reg = AUX_CLK_EN | SW_PIPEW_RESET_N | XHCI_REVISION;
> reg &= ~SW_PIPEW_RESET_N
this is what I meant ;-) I see what I wrote can be very ambiguous :-p
cheers
--
balbi
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