| Message ID | 20230125083026.5399-2-nikita.shubin@maquefel.me |
|---|---|
| State | New |
| Headers | show |
| Series | [v1,1/3] gpio: ep93xx: Fix port F hwirq numbers in handler | expand |
On Wed, Jan 25, 2023, at 09:30, Nikita Shubin wrote: > Fix wrong translation of irq numbers in port F handler, as ep93xx hwirqs > increased by 1, we should simply decrease them by 1 in translation. > > Fixes: 482c27273f52 ("ARM: ep93xx: renumber interrupts") > Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Cc: stable@vger.kernel.org # v5.19+ Acked-by: Arnd Bergmann <arnd@arndb.de> > --- > drivers/gpio/gpio-ep93xx.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c > index 2e1779709113..7edcdc575080 100644 > --- a/drivers/gpio/gpio-ep93xx.c > +++ b/drivers/gpio/gpio-ep93xx.c > @@ -148,7 +148,7 @@ static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc) > */ > struct irq_chip *irqchip = irq_desc_get_chip(desc); > unsigned int irq = irq_desc_get_irq(desc); > - int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */ > + int port_f_idx = (irq & 7) ^ 4; /* {20..23,48..51} -> {0..7} */ > int gpio_irq = EP93XX_GPIO_F_IRQ_BASE + port_f_idx; > > chained_irq_enter(irqchip, desc); > -- > 2.37.4
On Wed, Jan 25, 2023 at 9:30 AM Nikita Shubin <nikita.shubin@maquefel.me> wrote: > > Fix wrong translation of irq numbers in port F handler, as ep93xx hwirqs > increased by 1, we should simply decrease them by 1 in translation. > > Fixes: 482c27273f52 ("ARM: ep93xx: renumber interrupts") > Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> > --- > drivers/gpio/gpio-ep93xx.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c > index 2e1779709113..7edcdc575080 100644 > --- a/drivers/gpio/gpio-ep93xx.c > +++ b/drivers/gpio/gpio-ep93xx.c > @@ -148,7 +148,7 @@ static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc) > */ > struct irq_chip *irqchip = irq_desc_get_chip(desc); > unsigned int irq = irq_desc_get_irq(desc); > - int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */ > + int port_f_idx = (irq & 7) ^ 4; /* {20..23,48..51} -> {0..7} */ > int gpio_irq = EP93XX_GPIO_F_IRQ_BASE + port_f_idx; > > chained_irq_enter(irqchip, desc); > -- > 2.37.4 > Queued for fixes, thanks! Bart
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 2e1779709113..7edcdc575080 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -148,7 +148,7 @@ static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc) */ struct irq_chip *irqchip = irq_desc_get_chip(desc); unsigned int irq = irq_desc_get_irq(desc); - int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */ + int port_f_idx = (irq & 7) ^ 4; /* {20..23,48..51} -> {0..7} */ int gpio_irq = EP93XX_GPIO_F_IRQ_BASE + port_f_idx; chained_irq_enter(irqchip, desc);
Fix wrong translation of irq numbers in port F handler, as ep93xx hwirqs increased by 1, we should simply decrease them by 1 in translation. Fixes: 482c27273f52 ("ARM: ep93xx: renumber interrupts") Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> --- drivers/gpio/gpio-ep93xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)