This patch adds chained IRQ enter/exit functions to uart interrupt handler in order to function correctly on primary controllers with different methods of flow control. Signed-off-by: Changhwan Youn <chaos.youn@xxxxxxxxxxx> --- arch/arm/plat-samsung/irq-uart.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/arch/arm/plat-samsung/irq-uart.c b/arch/arm/plat-samsung/irq-uart.c index 32582c0..8960eaf 100644 --- a/arch/arm/plat-samsung/irq-uart.c +++ b/arch/arm/plat-samsung/irq-uart.c @@ -19,6 +19,8 @@ #include <linux/irq.h> #include <linux/io.h> +#include <asm/mach/irq.h> + #include <mach/map.h> #include <plat/irq-uart.h> #include <plat/regs-serial.h> @@ -30,9 +32,12 @@ static void s3c_irq_demux_uart(unsigned int irq, struct irq_desc *desc) { struct s3c_uart_irq *uirq = desc->irq_data.handler_data; + struct irq_chip *chip = irq_get_chip(irq); u32 pend = __raw_readl(uirq->regs + S3C64XX_UINTP); int base = uirq->base_irq; + chained_irq_enter(chip, desc); + if (pend & (1 << 0)) generic_handle_irq(base); if (pend & (1 << 1)) @@ -41,6 +46,8 @@ static void s3c_irq_demux_uart(unsigned int irq, struct irq_desc *desc) generic_handle_irq(base + 2); if (pend & (1 << 3)) generic_handle_irq(base + 3); + + chained_irq_exit(chip, desc); } static void __init s3c_init_uart_irq(struct s3c_uart_irq *uirq) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html