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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 17:41:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-26 17:41:04 -0700
commit69f1d1a6acbaa7d83ef3f4ee26209c58cd000204 (patch)
tree12be981f8a123b8361edd64b84fd72f339a9655d /arch/arm/plat-samsung/irq-uart.c
parent2d86a3f04e345b03d5e429bfe14985ce26bff4dc (diff)
parent1e09939bad24df95ddeeeca4fbec64fa94b66def (diff)
Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (128 commits) ARM: S5P64X0: External Interrupt Support ARM: EXYNOS4: Enable MFC on Samsung NURI ARM: EXYNOS4: Enable MFC on universal_c210 ARM: S5PV210: Enable MFC on Goni ARM: S5P: Add support for MFC device ARM: EXYNOS4: Add support FIMD on SMDKC210 ARM: EXYNOS4: Add platform device and helper functions for FIMD ARM: EXYNOS4: Add resource definition for FIMD ARM: EXYNOS4: Change devname for FIMD clkdev ARM: SAMSUNG: Add IRQ_I2S0 definition ARM: SAMSUNG: Add platform device for idma ARM: EXYNOS4: Add more registers to be saved and restored for PM ARM: EXYNOS4: Add more register addresses of CMU ARM: EXYNOS4: Add platform device for dwmci driver ARM: EXYNOS4: configure rtc-s3c on NURI ARM: EXYNOS4: configure MAX8903 secondary charger on NURI ARM: EXYNOS4: configure ADC on NURI ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI ARM: EXYNOS4: configure regulators and PMIC(MAX8997) on NURI ARM: EXYNOS4: Increase NR_IRQS for devices with more IRQs ... Fix up tons of silly conflicts: - arch/arm/mach-davinci/include/mach/psc.h - arch/arm/mach-exynos4/Kconfig - arch/arm/mach-exynos4/mach-smdkc210.c - arch/arm/mach-exynos4/pm.c - arch/arm/mach-imx/mm-imx1.c - arch/arm/mach-imx/mm-imx21.c - arch/arm/mach-imx/mm-imx25.c - arch/arm/mach-imx/mm-imx27.c - arch/arm/mach-imx/mm-imx31.c - arch/arm/mach-imx/mm-imx35.c - arch/arm/mach-mx5/mm.c - arch/arm/mach-s5pv210/mach-goni.c - arch/arm/mm/Kconfig
Diffstat (limited to 'arch/arm/plat-samsung/irq-uart.c')
-rw-r--r--arch/arm/plat-samsung/irq-uart.c7
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 657405c481d0..3014c7226bd1 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)