| Message ID | 1368586650-26263-4-git-send-email-horms+renesas@verge.net.au (mailing list archive) |
|---|---|
| State | Deferred |
| Headers | show |
Hi Simon, Thanks for the patch. On Wednesday 15 May 2013 11:57:29 Simon Horman wrote: > Empirically it appears to be necessary to call r8a7779_init_irq_extpin(1) > in order to initialise irqpin for use with IRQ1. This is already done in > the marzen board code. This adds the call to the marzen-reference board > code. > > The motivation for this is to allow use of SMSC LAN, which uses IRQ1, with > marzen-reference. This is an acceptable workaround for now, but in the not-so-long term we want to move that code to the irqpin driver. I've had a brief look at the irq-renesas-intc-irqpin driver, and it definitely looks like some love is needed there. I don't have any free time for that at the moment, but I could provide pointers if anyone wants to work on moving irqpin-related arch code to the driver. > Signed-off-by: Simon Horman <horms+renesas@verge.net.au> > --- > arch/arm/mach-shmobile/board-marzen-reference.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/mach-shmobile/board-marzen-reference.c > b/arch/arm/mach-shmobile/board-marzen-reference.c index 5332e89..f83b6d1 > 100644 > --- a/arch/arm/mach-shmobile/board-marzen-reference.c > +++ b/arch/arm/mach-shmobile/board-marzen-reference.c > @@ -63,12 +63,18 @@ static const char *marzen_boards_compat_dt[] __initdata > = { NULL, > }; > > +void __init marzen_init_irq(void) > +{ > + r8a7779_init_irq_extpin(1); /* IRQ1 as individual interrupt */ > + r8a7779_init_irq_dt(); > +} > + > DT_MACHINE_START(MARZEN, "marzen") > .smp = smp_ops(r8a7779_smp_ops), > .map_io = r8a7779_map_io, > .init_early = r8a7779_init_delay, > .nr_irqs = NR_IRQS_LEGACY, > - .init_irq = r8a7779_init_irq_dt, > + .init_irq = marzen_init_irq, > .init_machine = marzen_init, > .init_time = shmobile_timer_init, > .dt_compat = marzen_boards_compat_dt,
On Wed, May 15, 2013 at 11:28:15AM +0200, Laurent Pinchart wrote: > Hi Simon, > > Thanks for the patch. > > On Wednesday 15 May 2013 11:57:29 Simon Horman wrote: > > Empirically it appears to be necessary to call r8a7779_init_irq_extpin(1) > > in order to initialise irqpin for use with IRQ1. This is already done in > > the marzen board code. This adds the call to the marzen-reference board > > code. > > > > The motivation for this is to allow use of SMSC LAN, which uses IRQ1, with > > marzen-reference. > > This is an acceptable workaround for now, but in the not-so-long term we want > to move that code to the irqpin driver. Yes, I agree that this not a long term solution. > I've had a brief look at the irq-renesas-intc-irqpin driver, and it definitely > looks like some love is needed there. I don't have any free time for that at > the moment, but I could provide pointers if anyone wants to work on moving > irqpin-related arch code to the driver. > > > Signed-off-by: Simon Horman <horms+renesas@verge.net.au> > > --- > > arch/arm/mach-shmobile/board-marzen-reference.c | 8 +++++++- > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/arch/arm/mach-shmobile/board-marzen-reference.c > > b/arch/arm/mach-shmobile/board-marzen-reference.c index 5332e89..f83b6d1 > > 100644 > > --- a/arch/arm/mach-shmobile/board-marzen-reference.c > > +++ b/arch/arm/mach-shmobile/board-marzen-reference.c > > @@ -63,12 +63,18 @@ static const char *marzen_boards_compat_dt[] __initdata > > = { NULL, > > }; > > > > +void __init marzen_init_irq(void) > > +{ > > + r8a7779_init_irq_extpin(1); /* IRQ1 as individual interrupt */ > > + r8a7779_init_irq_dt(); > > +} > > + > > DT_MACHINE_START(MARZEN, "marzen") > > .smp = smp_ops(r8a7779_smp_ops), > > .map_io = r8a7779_map_io, > > .init_early = r8a7779_init_delay, > > .nr_irqs = NR_IRQS_LEGACY, > > - .init_irq = r8a7779_init_irq_dt, > > + .init_irq = marzen_init_irq, > > .init_machine = marzen_init, > > .init_time = shmobile_timer_init, > > .dt_compat = marzen_boards_compat_dt, > -- > Regards, > > Laurent Pinchart > -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/mach-shmobile/board-marzen-reference.c b/arch/arm/mach-shmobile/board-marzen-reference.c index 5332e89..f83b6d1 100644 --- a/arch/arm/mach-shmobile/board-marzen-reference.c +++ b/arch/arm/mach-shmobile/board-marzen-reference.c @@ -63,12 +63,18 @@ static const char *marzen_boards_compat_dt[] __initdata = { NULL, }; +void __init marzen_init_irq(void) +{ + r8a7779_init_irq_extpin(1); /* IRQ1 as individual interrupt */ + r8a7779_init_irq_dt(); +} + DT_MACHINE_START(MARZEN, "marzen") .smp = smp_ops(r8a7779_smp_ops), .map_io = r8a7779_map_io, .init_early = r8a7779_init_delay, .nr_irqs = NR_IRQS_LEGACY, - .init_irq = r8a7779_init_irq_dt, + .init_irq = marzen_init_irq, .init_machine = marzen_init, .init_time = shmobile_timer_init, .dt_compat = marzen_boards_compat_dt,
Empirically it appears to be necessary to call r8a7779_init_irq_extpin(1) in order to initialise irqpin for use with IRQ1. This is already done in the marzen board code. This adds the call to the marzen-reference board code. The motivation for this is to allow use of SMSC LAN, which uses IRQ1, with marzen-reference. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> --- arch/arm/mach-shmobile/board-marzen-reference.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)