On 14/02/19 4:27 PM, Marc Zyngier wrote: > On Tue, 12 Feb 2019 10:38:18 +0000, > Bartosz Golaszewski <[email protected]> wrote: >> >> From: Bartosz Golaszewski <[email protected]> >> >> I've been unable to figure out exactly why, but it seems that the >> IRQ_TINT1_TINT34 interrupt for timer 1 needs to be handled as a >> level irq, not edge like all others. >> >> Let's move the handler setup out of the aintc driver where it's lived >> since the beginning and into the dm* SoC-specific files where it >> belongs. >> >> Signed-off-by: Bartosz Golaszewski <[email protected]> >> --- >> arch/arm/mach-davinci/dm355.c | 8 ++++++++ >> arch/arm/mach-davinci/dm365.c | 8 ++++++++ >> arch/arm/mach-davinci/dm644x.c | 8 ++++++++ >> arch/arm/mach-davinci/dm646x.c | 8 ++++++++ >> arch/arm/mach-davinci/irq.c | 3 --- >> 5 files changed, 32 insertions(+), 3 deletions(-) >> >> diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c >> index c7cd765114af..a732f2ea1d9a 100644 >> --- a/arch/arm/mach-davinci/dm355.c >> +++ b/arch/arm/mach-davinci/dm355.c >> @@ -15,6 +15,7 @@ >> #include <linux/dma-mapping.h> >> #include <linux/dmaengine.h> >> #include <linux/init.h> >> +#include <linux/irq.h> >> #include <linux/irqchip/irq-davinci-aintc.h> >> #include <linux/platform_data/edma.h> >> #include <linux/platform_data/gpio-davinci.h> >> @@ -744,6 +745,13 @@ void __init dm355_init_time(void) >> psc = ioremap(DAVINCI_PWR_SLEEP_CNTRL_BASE, SZ_4K); >> dm355_psc_init(NULL, psc); >> >> + /* >> + * Nobody knows why anymore, but this interrupt has been handled as >> + * a level irq from the very beginning of davinci support in mainline >> + * linux. >> + */ >> + irq_set_handler(DAVINCI_INTC_IRQ(IRQ_TINT1_TINT34), handle_level_irq); >> + > > I've said it on v2, I'm repeating it on v3. There is no point in > duplicating this pointless hack on and on again. If there is a driver > using this interrupt, move the setup there, and fix the irq_set_type > callback. > > If nothing is using it, remove it altogether.
Alright, fine with me as well. Dropping the hack is fine. And I think that just boils down to discarding this patch. Thanks, Sekhar
