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[RFC 5/5] HACK: serial: move pl011 initcall to device_initcall

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  [RFC 5/5] HACK: serial: move pl011 initcall to device_initcall Leif Lindholm <leif.lindholm@linaro.org> - 2015-09-08 14:50 +0200
    Re: [RFC 5/5] HACK: serial: move pl011 initcall to device_initcall Mark Rutland <mark.rutland@arm.com> - 2015-09-08 15:00 +0200
      Re: [RFC 5/5] HACK: serial: move pl011 initcall to device_initcall Leif Lindholm <leif.lindholm@linaro.org> - 2015-09-08 19:00 +0200

#1220746 — [RFC 5/5] HACK: serial: move pl011 initcall to device_initcall

---
 drivers/tty/serial/amba-pl011.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 452dbba..31cf985 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2806,7 +2806,7 @@ static void __exit pl011_exit(void)
  * While this can be a module, if builtin it's most likely the console
  * So let's leave module_exit but move module_init to an earlier place
  */
-arch_initcall(pl011_init);
+device_initcall(pl011_init);
 module_exit(pl011_exit);
 
 MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd");
-- 
2.1.4

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#1220758

On Tue, Sep 08, 2015 at 01:43:37PM +0100, Leif Lindholm wrote:
> ---
>  drivers/tty/serial/amba-pl011.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
> index 452dbba..31cf985 100644
> --- a/drivers/tty/serial/amba-pl011.c
> +++ b/drivers/tty/serial/amba-pl011.c
> @@ -2806,7 +2806,7 @@ static void __exit pl011_exit(void)
>   * While this can be a module, if builtin it's most likely the console
>   * So let's leave module_exit but move module_init to an earlier place
>   */
> -arch_initcall(pl011_init);
> +device_initcall(pl011_init);
>  module_exit(pl011_exit);

What's the ordering constraint that you're trying to solve with this?

The cover didn't mention anything, and there's no commit message.

Mark.

>  
>  MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd");
> -- 
> 2.1.4
> 
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#1220994

On Tue, Sep 08, 2015 at 01:56:08PM +0100, Mark Rutland wrote:
> On Tue, Sep 08, 2015 at 01:43:37PM +0100, Leif Lindholm wrote:
> > ---
> >  drivers/tty/serial/amba-pl011.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
> > index 452dbba..31cf985 100644
> > --- a/drivers/tty/serial/amba-pl011.c
> > +++ b/drivers/tty/serial/amba-pl011.c
> > @@ -2806,7 +2806,7 @@ static void __exit pl011_exit(void)
> >   * While this can be a module, if builtin it's most likely the console
> >   * So let's leave module_exit but move module_init to an earlier place
> >   */
> > -arch_initcall(pl011_init);
> > +device_initcall(pl011_init);
> >  module_exit(pl011_exit);
> 
> What's the ordering constraint that you're trying to solve with this?

Basically that _CRS is not available until the ACPI subsystem is up -
so when uart_add_one_port() calls acpi_console_check(), that function
looks for a match against variables that have not been set yet.

> The cover didn't mention anything, and there's no commit message.

That's because I really don't want it committed :)
 
> Mark.
> 
> >  
> >  MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd");
> > -- 
> > 2.1.4
> > 
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