Re: [RFC] serial: ns16550: select default pinctrl state

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On Fri, Mar 13, 2020 at 10:03:26AM +0100, Sascha Hauer wrote:
> On Thu, Mar 12, 2020 at 11:46:07PM +0300, Peter Mamonov wrote:
> > Signed-off-by: Peter Mamonov <pmamonov@xxxxxxxxx>
> > ---
> >  drivers/serial/serial_ns16550.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
> > index 3edeb0dcb..6b5e92c13 100644
> > --- a/drivers/serial/serial_ns16550.c
> > +++ b/drivers/serial/serial_ns16550.c
> > @@ -39,6 +39,7 @@
> >  #include <malloc.h>
> >  #include <io.h>
> >  #include <linux/clk.h>
> > +#include <pinctrl.h>
> >  
> >  #include "serial_ns16550.h"
> >  #include <platform_data/serial-ns16550.h>
> > @@ -347,6 +348,8 @@ static void ns16550_probe_dt(struct device_d *dev, struct ns16550_priv *priv)
> >  		dev_err(dev, "unsupported reg-io-width (%d)\n",
> >  			width);
> >  	}
> > +
> > +	of_pinctrl_select_state_default(np);
> 
> Why? This should have been done by the core already at this point.

I struggled with this problem 
http://lists.infradead.org/pipermail/barebox/2020-March/041206.html yesterday, 
and my first guess was that pinctrl doesn't apply. So I made this patch and 
didn't revert it after finding the real solution. I will do so later. Thanks 
for explanation!

Peter

> 
> Sascha
> 
> -- 
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