Hi Greg,
Thanks for the feedback.
> Subject: Re: [PATCH] tty: serial: sh-sci: Fix transmit end interrupt handler
>
> On Tue, Apr 11, 2023 at 03:36:04PM +0000, Biju Das wrote:
> >
> > Hi Greg,
> >
> > > Subject: Re: [PATCH] tty: serial: sh-sci: Fix transmit end interrupt
> > > handler
> > >
> > > On Tue, Apr 11, 2023 at 02:40:52PM +0000, Biju Das wrote:
> > > > Hi Greg,
> > > >
> > > > > Subject: RE: [PATCH] tty: serial: sh-sci: Fix transmit end
> > > > > interrupt handler
> > > > >
> > > > > Hi Greg,
> > > > >
> > > > > Thanks for the feedback.
> > > > >
> > > > > > Subject: Re: [PATCH] tty: serial: sh-sci: Fix transmit end
> > > > > > interrupt handler
> > > > > >
> > > > > > On Tue, Apr 11, 2023 at 11:08:59AM +0100, Biju Das wrote:
> > > > > > > commit b43a18647f03c87e77d50d6fe74904b61b96323e upstream.
> > > > > > >
> > > > > > > The fourth interrupt on SCI port is transmit end interrupt
> > > > > > > compared to the break interrupt on other port types. So,
> > > > > > > shuffle the interrupts to fix the transmit end interrupt
> handler.
> > > > > > >
> > > > > > > Fixes: e1d0be616186 ("sh-sci: Add h8300 SCI")
> > > > > > > Cc: stable <stable@xxxxxxxxxx>
> > > > > > > Suggested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> > > > > > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > > > > > > Link:
> > > > > > > Signed-off-by: Greg Kroah-Hartman
> > > > > > > <gregkh@xxxxxxxxxxxxxxxxxxx>
> > > > > > > [biju: manually fixed the conflicts]
> > > > > > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > > > > > > ---
> > > > > > > Resending to 4.14 with confilcts [1] fixed.
> > > > > > > [1]
> > > > > >
> > > > > > You did not actually build your patch, as it breaks the build
> > > > > > :(
> > > > >
> > > > > Actually, I build the patch, but did not test it on target as I
> > > > > don't have the platform to test it.
> > > > >
> > > > > I got some issues while building modules which is unrelated to
> > > > > this
> > > change.
> > > > >
> > > > > Anyway, I will double check again and confirm.
> > > >
> > > > I confirm, there is an issue with this patch.
> > > >
> > > > I disabled building modules from my build script and it showed the
> > > > below
> > > error.
> > > > So I would like to drop this patch for 4.14 as this header file
> > > > does not
> > > exist for 4.14.
> > > >
> > > > drivers/tty/serial/sh-sci.c:40:10: fatal error: linux/minmax.h: No
> > > > such
> > > file or directory
> > > > 40 | #include <linux/minmax.h>
> > > > | ^~~~~~~~~~~~~~~~
> > >
> > > Yes, minmax is not there, but the function needed by that is there
> > > (hint, I had to remove that include in 4.19). Remove it and see the
> > > next error you get :)
> > >
> >
> > OK got it, The SCIx_TEI_IRQ is introduced after 4.18 by patch [1].
> >
> > [1]
> >
> > So, 4.14 does not require this patch, as it have combined interrupt.
>
> Great, thanks for checking, it turns out that the Fixes: tag was wrong :(
I agree. It is my fault, next time I will take care this.
Cheers,
Biju
