[PATCH] serial: ns16550: Correct NS16550_DYNAMIC for non-x86

Bin Meng bmeng.cn at gmail.com
Mon Feb 3 18:21:43 CET 2020


Hi Simon,

On Tue, Feb 4, 2020 at 1:15 AM Simon Glass <sjg at chromium.org> wrote:
>
> Hi Bin,
>
> On Mon, 3 Feb 2020 at 10:12, Bin Meng <bmeng.cn at gmail.com> wrote:
> >
> > On Tue, Feb 4, 2020 at 1:04 AM Simon Glass <sjg at chromium.org> wrote:
> > >
> > > There is currently no standard way to know which I/O functions an
> > > architecture supports, so it is not possible to have all options used in
> > > this driver.
> > >
> > > Move it to use #ifdef for now, to fix the build problem.
> > >
> > > Signed-off-by: Simon Glass <sjg at chromium.org>
> > > ---
> > >
> > >  drivers/serial/ns16550.c | 20 ++++++++++++++++++++
> > >  1 file changed, 20 insertions(+)
> > >
> > > diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
> > > index 896c58d68c..67894f4e1f 100644
> > > --- a/drivers/serial/ns16550.c
> > > +++ b/drivers/serial/ns16550.c
> > > @@ -93,6 +93,14 @@ static inline int serial_in_shift(void *addr, int shift)
> > >  #define CONFIG_SYS_NS16550_CLK  0
> > >  #endif
> > >
> > > +/*
> > > + * Use this #ifdef for now since many platforms don't device in(), out(),
> >
> > typo: device -> define?
>
> Yes that's right. Do you want to fix it when applying?

Fixed the typo, and

> >
> > > + * out_le32(), etc. but we don't have #defines to indicate this.
> > > + *
> > > + * TODO(sjg at chromium.org): Add CONFIG options to indicate what I/O is available
> > > + * on a platform
> > > + */
> > > +#ifdef CONFIG_NS16550_DYNAMIC
> > >  static void serial_out_dynamic(struct ns16550_platdata *plat, u8 *addr,
> > >                                int value)
> > >  {
> > > @@ -133,6 +141,18 @@ static int serial_in_dynamic(struct ns16550_platdata *plat, u8 *addr)
> > >                 return readb(addr);
> > >         }
> > >  }
> > > +#else
> > > +static inline void serial_out_dynamic(struct ns16550_platdata *plat, u8 *addr,
> > > +                                     int value)
> > > +{
> > > +}
> > > +
> > > +static inline int serial_in_dynamic(struct ns16550_platdata *plat, u8 *addr)
> > > +{
> > > +       return 0;
> > > +}
> > > +
> > > +#endif /* CONFIG_NS16550_DYNAMIC */
> > >
> > >  static void ns16550_writeb(NS16550_t port, int offset, int value)
> > >  {
> > > --
> >
> > Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
> >
> > I will squash this into the previous patch.

Squashed into https://gitlab.denx.de/u-boot/custodians/u-boot-x86/commit/62cbde4c4e462e5147d07cf1424492bb39e7bf94

Regards,
Bin


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