ARM: fiq: change FIQ_START to a variable
authorShawn Guo <shawn.guo@linaro.org>
Thu, 28 Jun 2012 06:42:08 +0000 (14:42 +0800)
committerShawn Guo <shawn.guo@linaro.org>
Sun, 1 Jul 2012 13:59:19 +0000 (21:59 +0800)
commitbc89663aa5c7ca620f58c34ab531ca409119becc
treeaf249454a1660849004f1beb26eeccddba61ba2f
parent1ee8f65b5689504b98dacb6641fc8b2cc5618ad4
ARM: fiq: change FIQ_START to a variable

The commit a2be01b (ARM: only include mach/irqs.h for !SPARSE_IRQ)
makes mach/irqs.h only be included for !SPARSE_IRQ build.  There are
a nubmer of platforms have FIQ_START defined in mach/irqs.h for FIQ
support.

  arch/arm/mach-rpc/include/mach/irqs.h:#define FIQ_START         64
  arch/arm/mach-s3c24xx/include/mach/irqs.h:#define FIQ_START             IRQ_EINT0
  arch/arm/plat-mxc/include/mach/irqs.h:#define FIQ_START 0

If SPARSE_IRQ is enabled for any of these platforms, the following
compile error will be seen.

  arch/arm/kernel/fiq.c: In function ‘enable_fiq’:
  arch/arm/kernel/fiq.c:127:19: error: ‘FIQ_START’ undeclared (first use in this function)
  arch/arm/kernel/fiq.c:127:19: note: each undeclared identifier is reported only once for each function it appears in
  arch/arm/kernel/fiq.c: In function ‘disable_fiq’:
  arch/arm/kernel/fiq.c:132:20: error: ‘FIQ_START’ undeclared (first use in this function)

The patch changes fiq code to have init_FIQ take FIQ_START from
platforms as a parameter and assign it to variable fiq_start which
is to replace FIQ_START uses in enable_fiq/disable_fiq.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/include/asm/mach/irq.h
arch/arm/kernel/fiq.c
arch/arm/mach-rpc/irq.c
arch/arm/plat-mxc/avic.c
arch/arm/plat-mxc/tzic.c
arch/arm/plat-s3c24xx/irq.c