[RFC PATCH 3/7] ARM: s3c64xx: Add support for OF-based VIC initialization
From: Tomasz Figa <hidden>
Date: 2013-01-09 23:41:45
Also in:
linux-arm-kernel, linux-samsung-soc
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
This patch modifies IRQ initialization code of S3C64xx to support Device Tree-based initialization of VICs. Signed-off-by: Tomasz Figa <redacted> --- arch/arm/mach-s3c64xx/common.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index aef303b..798c5d4 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c@@ -19,6 +19,7 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> +#include <linux/of_irq.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h>
@@ -181,13 +182,26 @@ core_initcall(s3c64xx_dev_init); 1 << (IRQ_HSMMC1 - IRQ_VIC1_BASE) | \ 1 << (IRQ_HSMMC2 - IRQ_VIC1_BASE)) +#ifdef CONFIG_OF +static const struct of_device_id s3c64xx_dt_irq_match[] = { + { .compatible = "arm,pl192-vic", .data = vic_of_init, }, + {}, +}; +#endif + void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid) { printk(KERN_DEBUG "%s: initialising interrupts\n", __func__); - /* initialise the pair of VICs */ - vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, IRQ_VIC0_RESUME); - vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, IRQ_VIC1_RESUME); + if (!of_have_populated_dt()) { + /* initialise the pair of VICs */ + vic_init(VA_VIC0, IRQ_VIC0_BASE, vic0_valid, IRQ_VIC0_RESUME); + vic_init(VA_VIC1, IRQ_VIC1_BASE, vic1_valid, IRQ_VIC1_RESUME); + } +#ifdef CONFIG_OF + else + of_irq_init(s3c64xx_dt_irq_match); +#endif /* add the timer sub-irqs */ s3c_init_vic_timer_irq(5, IRQ_TIMER0);
--
1.8.1