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path: root/arch/arm/mach-davinci/cp_intc.c
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2019-02-19irqchip: davinci-cp-intc: move the driver to drivers/irqchipBartosz Golaszewski1-260/+0
The cp-intc driver has now been cleaned up. Move it to drivers/irqchip where it belongs. Acked-by: Marc Zyngier <marc.zyngier@arm.com> 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: cp-intc: remove redundant commentsBartosz Golaszewski1-3/+0
We don't need comments explaining what functions with obvious names do. 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: cp-intc: drop GPL license boilerplateBartosz Golaszewski1-10/+8
Replace the GPLv2 license boilerplate with an SPDX identifier and add myself as a second author. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: cp-intc: use readl/writel_relaxed()Bartosz Golaszewski1-2/+2
Replace all calls to __raw_readl() & __raw_writel() with readl_relaxed() and writel_relaxed() respectively. 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: cp-intc: unify error handlingBartosz Golaszewski1-4/+7
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: cp-intc: improve coding styleBartosz Golaszewski1-6/+7
Drop tabs from variable initialization. Arrange variables in reverse christmas-tree order. Add a newline before a return. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2019-02-19ARM: davinci: cp-intc: request the memory region before remapping itBartosz Golaszewski1-0/+9
Add a missing call to request_mem_region() before calling ioremap() to make sure it's not been requested by another user. 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: cp-intc: use the new-style config structureBartosz Golaszewski1-53/+46
Modify the cp-intc driver to take all its configuration from the new config structure. Stop referencing davinci_soc_info in any way. Move the declaration for davinci_cp_intc_init() to irq-davinci-cp-intc.h and make it take the new config structure as parameter. Convert all users to the new version. Also: since the two da8xx SoCs default all irq priorities to 7, just drop the priority configuration at all and hardcode the channels to 7. It will simplify the driver code and make our lives easier when it comes to device-tree support. 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: cp-intc: convert all hex numbers to lowercaseBartosz Golaszewski1-4/+4
Use lowercase letters in hexadecimal numbers in the cp-intc driver as is done in most of the kernel code base. 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: cp-intc: use a common prefix for all symbolsBartosz Golaszewski1-70/+74
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: cp-intc: remove cp_intc.hBartosz Golaszewski1-2/+18
There's no need to have a local header for cp-intc. Move the only declaration for a public function to common.h. Move all register offsets into the driver source file and drop all unused defines. Make cp_intc_of_init() static. 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: pull davinci_intc_base into the respective intc driversBartosz Golaszewski1-0/+2
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/+28
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: remove intc_host_map from davinci_soc_info structBartosz Golaszewski1-5/+0
The intc_host_map field in struct davinci_soc_info is not used by any board. Remove it as part of the interrupt support cleanup. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-04-14ARM: davinci: use IRQCHIP_DECLARE for cp_intcDavid Lechner1-0/+3
Remove boilerplate code by using IRQCHIP_DECLARE macro. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-12-01ARM: davinci: make headers more localArnd Bergmann1-1/+1
Some header files are never included outside of a mach-davinci directory and do not need to be made visible in include/mach, so let's just move them all down one level. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com>
2015-09-01Merge tag 'armsoc-soc' of ↵Linus Torvalds1-11/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "New or improved SoC support: - add support for Atmel's SAMA5D2 SoC - add support for Freescale i.MX6UL - improved support for TI's DM814x platform - misc fixes and improvements for RockChip platforms - Marvell MVEBU suspend/resume support A few driver changes that ideally would belong in the drivers branch are also here (acked by appropriate maintainers): - power key input driver for Freescale platforms (svns) - RTC driver updates for Freescale platforms (svns/mxc) - clk fixes for TI DM814/816X + a bunch of other changes for various platforms" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: rockchip: pm: Fix PTR_ERR() argument ARM: imx: mach-imx6ul: Fix allmodconfig build clk: ti: fix for definition movement ARM: uniphier: drop v7_invalidate_l1 call at secondary entry memory: kill off set_irq_flags usage rtc: snvs: select option REGMAP_MMIO ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE ARM: BCM: Enable ARM erratum 798181 for BRCMSTB ARM: OMAP2+: Fix power domain operations regression caused by 81xx ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend ARM: rockchip: set correct stabilization thresholds in suspend ARM: rockchip: rename osc_switch_to_32k variable ARM: imx6ul: add fec MAC refrence clock and phy fixup init ARM: imx6ul: add fec bits to GPR syscon definition rtc: mxc: add support of device tree dt-binding: document the binding for mxc rtc rtc: mxc: use a second rtc clock ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback soc: mediatek: Fix SCPSYS compilation ARM: at91/soc: add basic support for new sama5d2 SoC ...
2015-08-05ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake ↵Sudeep Holla1-11/+1
callback Commit 60f96b41f71d ("genirq: Add IRQCHIP_SKIP_SET_WAKE flag") introduced a new flag to skip the irq_set_wake callback in the irqchip core to avoid adding dummy irq_set_wake in the irqchip implementations. This patch removes the dummy callback and sets the IRQCHIP_SKIP_SET_WAKE flags. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28ARM: kill off set_irq_flags usageRob Herring1-1/+1
set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Gregory Clement <gregory.clement@free-electrons.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khalasa@piap.pl> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Tony Lindgren <tony@atomide.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Simtec Linux Team <linux@simtec.co.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-07-05ARM: davinci: cp_intc: Add OF support for TI interrupt controllerHeiko Schocher1-3/+13
Add a function to initialize the Common Platform Interrupt Controller (cp_intc) from TI used on OMAP-L1x SoCs using a device tree node. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: davinci-linux-open-source@linux.davincidsp.com Cc: linux-arm-kernel@lists.infradead.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2012-06-25ARM: davinci: cp_intc: Add irq domain supportHeiko Schocher1-14/+49
Add irq domain support for DaVinci cp_intc. Boot tested on AM18x EVM. Also tested with GPIO IRQ support on AM18x EVM. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: davinci-linux-open-source@linux.davincidsp.com Cc: linux-arm-kernel@lists.infradead.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Sergei Shtylyov <sshtylyov@mvista.com> [nsekhar@ti.com: add commit description, select IRQ_DOMAIN for CP_INTC in Kconfig] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-03-29arm: Cleanup the irq namespaceThomas Gleixner1-2/+2
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 Buytenhek1-15/+15
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
2010-05-13Davinci: aintc/cpintc - use ioremap()Cyril Chemparathy1-7/+11
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>
2010-05-07Davinci: cpintc host map configurationCyril Chemparathy1-1/+5
Host map configuration instructs the interrupt controller to route interrupt channels to FIQ or IRQ lines. Currently, DA8xx family of devices leave these registers at their reset-default values. TNETV107X however does not have sane reset defaults, and therefore this architecture needs to reconfigure the host-map such that channels 0 and 1 go to FIQ, and the remaining channels raise IRQs. This patch adds an optional host map argument to cp_intc_init() for this. Signed-off-by: Cyril Chemparathy <cyril@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06davinci: cp_intc: provide set_wake functionSekhar Nori1-0/+11
There is nothing special to be done for interrupts which can wakeup the device from sleep on CP-INTC, but not having a set_wake implemented prevents use of common drivers which expect this function to be implemented for all wakeup interrupt sources. This patch fixes the issue encountered when using the omap-rtc driver on DA850. On DA850 the RTC alarm interrupt is used to wake up the SoC from deep sleep mode. Without this patch, the disable_irq_wake throws an unbalanced wake disable warning while resuming because the previous enable call fails for lack of set_wake implementation. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-25DaVinci: remove unneeded #include'sSergei Shtylyov1-3/+0
There have accumulated quite a lot of them after the code reorganizations... In several cases I had to replace #include <linux/dma-mapping.h> which wasn't needed directly but happened to #include <linux/err.h> which was needed. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-26davinci: INTC: add support for TI cp_intcSergei Shtylyov1-0/+161
Add support for Texas Instuments Common Platform Interrupt Controller (cp_intc) used on DA830/OMAP-L137. Signed-off-by: Steve Chen <schen@mvista.com> Signed-off-by: Mark Greer <mgreer@mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
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