kernel/git/stable/linux.git/arch/arm/common/vic.c, branch master

irqchip: Move ARM VIC to drivers/irqchip

2013-01-12T16:52:14+00:00

Now that we have drivers/irqchip, move VIC irqchip to drivers/irqchip. Signed-off-by: Rob Herring Cc: Russell King Cc: Thomas Gleixner

ARM: remove mach .handle_irq for VIC users

2013-01-12T16:48:04+00:00

Now that the VIC initialization sets up the handle_arch_irq pointer, we can remove it for all machines and make it static. Move vic_handle_irq to avoid a forward declaration. Signed-off-by: Rob Herring Cc: Ryan Mallon Cc: Russell King Cc: Hubert Feurstein Cc: Alessandro Rubini Cc: STEricsson Cc: Ben Dooks Cc: Kyungmin Park Cc: Shiraz Hashim Cc: Rajeev Kumar Acked-by: H Hartley Sweeten Acked-by: Jamie Iles Acked-by: Linus Walleij Acked-by: Mark Brown Acked-by: Viresh Kumar Acked-by: Kukjin Kim Acked-by: Olof Johansson Acked-by: Arnd Bergmann

ARM: VIC: set handle_arch_irq in VIC initialization

2013-01-12T16:47:34+00:00

Set handle_arch_irq to vic_handle_irq. Only the first VIC initialized can setup the handler. Signed-off-by: Rob Herring Acked-by: Olof Johansson

ARM: VIC: shrink down vic.h

2013-01-12T16:47:33+00:00

Move all register defines except VIC_INT_ENABLE and VIC_INT_ENABLE_CLEAR which are used by Samsung. With multi irq handler, vic.h is not included in assembly any more, so we can remove the assembly ifdefs. Signed-off-by: Rob Herring Cc: Russell King Acked-by: Olof Johansson

ARM: 7611/1: VIC: fix bug in VIC irqdomain code

2013-01-02T10:35:07+00:00

The VIC irqdomain code added in commit 07c9249f1fa90cc8189bed44c0bcece664596a72 "ARM: 7554/1: VIC: use irq_domain_add_simple()" Had two bugs: 1) It didn't call irq_create_mapping() once on each valid irq source in the slowpath when registering the controller. 2) It passed a -1 as IRQ offset for the DT case, whereas 0 should be passed as invalid IRQ instead. Cc: Grant Likely Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: vic: fix build warning caused by previous commit

2012-11-08T10:48:30+00:00

07c9249f1f (ARM: 7554/1: VIC: use irq_domain_add_simple()) removed the use of 'irq_base' but did not remove the variable itself, which causes: arch/arm/common/vic.c: In function 'vic_of_init': arch/arm/common/vic.c:410:6: warning: unused variable 'irq_base' Remove this now unused variable. Signed-off-by: Russell King

ARM: 7554/1: VIC: use irq_domain_add_simple()

2012-10-18T10:11:16+00:00

Instead of allocating descriptors on-the-fly for the device tree initialization case, use irq_domain_add_simple() which will take care of this if you pass negative as the first_irq. Alter the signature of __vic_init() to pass the first_irq as signed so this works as expected. Switching the VIC to use irq_domain_add_simple() also has the upside of displaying the same WARNING when you boot with pre-allocated descriptors on systems using SPARSE_IRQ but yet not using device tree. Cc: Grant Likely Acked-by: Rob Herring Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: 7395/1: VIC: use the domain mapping function to assign handlers

2012-04-25T11:57:07+00:00

This removes the internal functions for assigning IRQ handlers to each interrupt in favor of using the internal map iterator in the irq domain code. Cc: Will Deacon Cc: Grant Likely Cc: Rob Herring Acked-by: Jamie Iles Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: 7394/1: VIC: respect list of valid sources

2012-04-25T11:57:07+00:00

The current IRQ domain implementation in the VIC allocates 32 interrupts for each VIC instance no matter whether the controller actually use all the IRQs or not. Alter this so we only allocate a domain up until the last IRQ marked valid. Cc: Will Deacon Cc: Grant Likely Cc: Rob Herring Acked-by: Jamie Iles Signed-off-by: Linus Walleij Signed-off-by: Russell King

ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler

2012-04-10T08:27:42+00:00

handle_IRQ may briefly cause interrupts to be re-enabled during soft IRQ processing on the exit path, leading to nested handling of VIC interrupts. Since the current code does not re-read the VIC_IRQ_STATUS register, this can lead to multiple invocations of the same interrupt handler and spurious interrupts to be reported. This patch changes the VIC interrupt dispatching code to re-read the status register each time, avoiding duplicate invocations of the same handler. Acked-and-Tested-by: H Hartley Sweeten Reviewed-by: Jamie Iles Signed-off-by: Will Deacon Signed-off-by: Russell King