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path: root/arch/arm/mach-davinci/irq.c
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2019-02-19irqchip: davinci-aintc: move the driver to drivers/irqchipBartosz Golaszewski1-163/+0
The aintc driver has now been cleaned up. Move it to drivers/irqchip where it belongs. There's no device-tree support for any dm* board so there's no IRQCHIP_OF_DECLARE() - there's only the exported init function called from machine code. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: remove unnecessary includesBartosz Golaszewski1-4/+0
These includes are no longer required. Remove them. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: remove the timer-specific irq_set_handler()Bartosz Golaszewski1-3/+0
I've been unable to figure out exactly why, but the IRQ_TINT1_TINT34 interrupt is being handled as level irq and it's configured in the irq chip driver instead of set by the irq_set_type() callback. Since this is probably some legacy hack for out-of-tree code - remove it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: request memory region before remapping itBartosz Golaszewski1-0/+9
Add a missing call to request_mem_region() before calling ioremap() to make sure the region is not being used by anyone else. Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: unify error handlingBartosz Golaszewski1-4/+14
Instead of dumping stack traces, just print a specific error message in aintc driver. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: use the new config structureBartosz Golaszewski1-19/+20
Modify the aintc driver to take all its configuration from the new config structure. Stop referencing davinci_soc_info in any way. Move the declaration for davinci_aintc_init() to irq-davinci-aintc.h and make it take the new config structure as parameter. Convert all users to the new version. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: use writel_relaxed()Bartosz Golaszewski1-1/+1
Raplace all calls to __raw_writel() with writel_relaxed(). It's safe to do as there's no endianness conversion being done in the code. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: drop the 00 prefix from register offsetsBartosz Golaszewski1-11/+11
Since no offset goes past 0xff - let's drop the 00 prefix for better readability. While we're at it: convert all hex numbers to lower-case. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: use a common prefix for symbols in the driverBartosz Golaszewski1-52/+55
In preparation for moving the driver to drivers/irqchip do some cleanup: use a common prefix for all symbols. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: drop GPL license boilerplateBartosz Golaszewski1-20/+6
Replace the GPLv2 or later license boilerplate with an SPDX identifier. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: make irqs.h a local headerBartosz Golaszewski1-1/+2
The existence of irqs.h in mach-davinci/include/mach only makes sense without SPARSE_IRQ as it's then expected to define NR_IRQS and is included from asm/irq.h. As we now support SPARSE_IRQ, this header can be moved to mach-davinci and used as the source of HW interrupt numbers. While updating the includes in various files - also rearrange the headers by directory (linux/asm/mach). Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: select SPARSE_IRQBartosz Golaszewski1-0/+1
Everything is in place now for SPARSE_IRQ. Select it and set DAVINCI_INTC_START to NR_IRQS. We now need to include mach/irqs.h in a couple places as it is no longer indirectly included after selecting SPARSE_IRQ. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: wrap HW interrupt numbers with a macroBartosz Golaszewski1-1/+1
Once we select SPARSE_IRQ, the interrupt numbers defined in mach/irqs.h will only signify the hardware interrupt offsets, not the interrupt numbers seen by linux. Introduce a wrapper macro that translates the hwirq number to virtual numbers. For now it's just a dummy. Use that macro when specifying the interrupts in resources for platform devices. Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: pull davinci_intc_base into the respective intc driversBartosz Golaszewski1-0/+1
davinci_intc_base is defined globally in common.c. Define separate local variables for the aintc and cp-intc drivers and remove the global one. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: remove davinci_intc_typeBartosz Golaszewski1-1/+0
We now use the generic ARM irq handler on davinci. There are no more users that check davinci_intc_type. Remove the variable and all its references. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: select GENERIC_IRQ_MULTI_HANDLERBartosz Golaszewski1-0/+23
In order to support SPARSE_IRQ we first need to make davinci use the generic irq handler for ARM. Translate the legacy assembly to C and put the irq handlers into their respective drivers (aintc and cp-intc). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: aintc: use irq domainBartosz Golaszewski1-8/+27
We need to create an irq domain if we want to select SPARSE_IRQ. The cp-intc driver already supports it, but aintc doesn't. Use the helpers provided by the generic irq chip abstraction. Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-07-20Merge branch 'fixes' of ↵Linus Torvalds1-0/+6
git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: davinci: DM365 EVM: fix video input mux bits ARM: davinci: Check for NULL return from irq_alloc_generic_chip arm: davinci: Fix low level gpio irq handlers' argument
2011-07-19ARM: davinci: Check for NULL return from irq_alloc_generic_chipTodd Poynor1-0/+6
Avoid NULL dereference of irq_alloc_generic_chip return in low memory conditions. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-07-07genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd)Simon Guinot1-1/+1
This fixes a regression introduced by e59347a "arm: orion: Use generic irq chip". Depending on the device, interrupts acknowledgement is done by setting or by clearing a dedicated register. Replace irq_gc_ack() with some {set,clr}_bit variants allows to handle both cases. Note that this patch affects the following SoCs: Davinci, Samsung and Orion. Except for this last, the change is minor: irq_gc_ack() is just renamed into irq_gc_ack_set_bit(). For the Orion SoCs, the edge GPIO interrupts support is currently broken. irq_gc_ack() try to acknowledge a such interrupt by setting the corresponding cause register bit. The Orion GPIO device expect the opposite. To fix this issue, the irq_gc_ack_clr_bit() variant is used. Tested on Network Space v2. Reported-by: Joey Oravec <joravec@drewtech.com> Signed-off-by: Simon Guinot <sguinot@lacie.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-05-11arm: davinci: Use generic irq chipThomas Gleixner1-73/+20
Simple conversion which simply uses the fact that the second irq chip base address has offset 0x04 to the first one. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-and-Tested-by: Kevin Hilman <khilman@ti.com> Tested-by: Sekhar Nori <nsekhar@ti.com>
2011-03-29arm: Cleanup the irq namespaceThomas Gleixner1-3/+3
Convert to the new function names. Automated with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-01-13ARM: davinci: irq_data conversion.Lennert Buytenhek1-13/+13
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
2010-05-13Davinci: aintc/cpintc - use ioremap()Cyril Chemparathy1-1/+6
This patch implements the following: - interrupt initialization uses ioremap() instead of passing a virtual address via davinci_soc_info. - machine definitions directly point to cp_intc_init() or davinci_irq_init() - davinci_intc_type and davinci_intc_base now get initialized in controller specific init functions instead of davinci_common_init() - minor fix in davinci_irq_init() to use intc_irq_num instead of DAVINCI_N_AINTC_IRQ Signed-off-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-26davinci: Move interrupt ctlr info to SoC infrastructureMark A. Greer1-213/+4
Use the SoC infrastructure to hold the interrupt controller information (i.e., base address, default priorities, interrupt controller type, and the number of IRQs). The interrupt controller base, although initially put in the soc_info structure's intc_base field, is eventually put in the global 'davinci_intc_base' so the low-level interrupt code can access it without a dereference. These changes enable the SoC default irq priorities to be put in the SoC-specific files, and the interrupt controller to be at any base address. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-27davinci: DM355 IRQ Definitionss-paulraj@ti.com1-0/+67
Adding IRQ defintions for DaVinci DM355 and default interrupt priorities for DM355 Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-27davinci: DM646x: add interrupt number and prioritiesSudhakar Rajashekhara1-5/+78
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-23davinci: add arch_ioremap() which uses existing static mappingsKevin Hilman1-2/+4
Add arch-specific ioremap() which uses any existing static mappings in place of doing a new mapping. From now on, drivers should always use ioremap() instead of IO_ADDRESS(). In addition, remove the davinci_[read|write]* macros in favor of using ioremap. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2008-09-06[ARM] Convert asm/io.h to linux/io.hRussell King1-1/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-1/+1
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King1-1/+1
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-11[ARM] 4303/3: base kernel support for TI DaVinciKevin Hilman1-0/+226
Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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