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2016-10-04MIPS: ralink: Make timer explicitly non-modularPaul Gortmaker1-21/+7
The Makefile entry controlling compilation of this code is "obj-y" meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information was (or is now) contained at the top of the file in the comments. We don't replace module.h with init.h since the file already has that. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: John Crispin <john@phrozen.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13931/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-08-06Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds1-1/+1
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.8. Also includes is a minor SSB cleanup as SSB code traditionally is merged through the MIPS tree: ATH25: - MIPS: Add default configuration for ath25 Boot: - For zboot, copy appended dtb to the end of the kernel - store the appended dtb address in a variable BPF: - Fix off by one error in offset allocation Cobalt code: - Fix typos Core code: - debugfs_create_file returns NULL on error, so don't use IS_ERR for testing for errors. - Fix double locking issue in RM7000 S-cache code. This would only affect RM7000 ARC systems on reboot. - Fix page table corruption on THP permission changes. - Use compat_sys_keyctl for 32 bit userspace on 64 bit kernels. David says, there are no compatibility issues raised by this fix. - Move some signal code around. - Rewrite r4k count/compare clockevent device registration such that min_delta_ticks/max_delta_ticks files are guaranteed to be initialized. - Only register r4k count/compare as clockevent device if we can assume the clock to be constant. - Fix MSA asm warnings in control reg accessors - uasm and tlbex fixes and tweaking. - Print segment physical address when EU=1. - Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO. - CP: Allow booting by VP other than VP 0 - Cache handling fixes and optimizations for r4k class caches - Add hotplug support for R6 processors - Cleanup hotplug bits in kconfig - traps: return correct si code for accessing nonmapped addresses - Remove cpu_has_safe_index_cacheops Lantiq: - Register IRQ handler for virtual IRQ number - Fix EIU interrupt loading code - Use the real EXIN count - Fix build error. Loongson 3: - Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES Octeon: - Delete built-in DTB pruning code for D-Link DSR-1000N. - Clean up GPIO definitions in dlink_dsr-1000n.dts. - Add more LEDs to the DSR-100n DTS - Fix off by one in octeon_irq_gpio_map() - Typo fixes - Enable SATA by default in cavium_octeon_defconfig - Support readq/writeq() - Remove forced mappings of USB interrupts. - Ensure DMA descriptors are always in the low 4GB - Improve USB reset code for OCTEON II. Pistachio: - Add maintainers entry for pistachio SoC Support - Remove plat_setup_iocoherency Ralink: - Fix pwm UART in spis group pinmux. SSB: - Change bare unsigned to unsigned int to suit coding style Tools: - Fix reloc tool compiler warnings. Other: - Delete use of ARCH_WANT_OPTIONAL_GPIOLIB" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (61 commits) MIPS: mm: Fix definition of R6 cache instruction MIPS: tools: Fix relocs tool compiler warnings MIPS: Cobalt: Fix typo MIPS: Octeon: Fix typo MIPS: Lantiq: Fix build failure MIPS: Use CPHYSADDR to implement mips32 __pa MIPS: Octeon: Dlink_dsr-1000n.dts: add more leds. MIPS: Octeon: Clean up GPIO definitions in dlink_dsr-1000n.dts. MIPS: Octeon: Delete built-in DTB pruning code for D-Link DSR-1000N. MIPS: store the appended dtb address in a variable MIPS: ZBOOT: copy appended dtb to the end of the kernel MIPS: ralink: fix spis group pinmux MIPS: Factor o32 specific code into signal_o32.c MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present MIPS: Use per-mm page to execute branch delay slot instructions MIPS: Modify error handling MIPS: c-r4k: Use SMP calls for CM indexed cache ops MIPS: c-r4k: Avoid small flush_icache_range SMP calls MIPS: c-r4k: Local flush_icache_range cache op override MIPS: c-r4k: Split r4k_flush_kernel_vmap_range() ...
2016-08-02MIPS: ralink: fix spis group pinmuxÁlvaro Fernández Rojas1-1/+1
pwm function for spis conflicts with uart2 and uart1, fix this by changing it to pwm_uart2, which reflects the real use of these pins with these pinmux (2 for pwm and 2 for uart). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13369/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-06-28clocksources: Switch back to the clksrc tableDaniel Lezcano1-1/+1
All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> For arch/arc: Acked-by: Vineet Gupta <vgupta@synopsys.com> For mediatek driver: Acked-by: Matthias Brugger <matthias.bgg@gmail.com> For the Rockchip-part Acked-by: Heiko Stuebner <heiko@sntech.de> For STi : Acked-by: Patrice Chotard <patrice.chotard@st.com> For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> For the OXNAS part : Acked-by: Neil Armstrong <narmstrong@baylibre.com> For LPC32xx driver: Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> For Broadcom Kona timer change: Acked-by: Ray Jui <ray.jui@broadcom.com> For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai <wens@csie.org> For Meson6: Acked-by: Carlo Caione <carlo@caione.org> For Keystone: Acked-by: Santosh Shilimkar <ssantosh@kernel.org> For NPS: Acked-by: Noam Camus <noamca@mellanox.com> For bcm2835: Acked-by: Eric Anholt <eric@anholt.net>
2016-06-28clocksource/drivers/ralink: Convert init function to return errorDaniel Lezcano1-6/+13
The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-05-28MIPS: ralink: add MT7628 EPHY LEDs pinmux supportÁlvaro Fernández Rojas1-0/+100
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13308/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-28MIPS: ralink: fix MT7628 wled_an pinmux gpioÁlvaro Fernández Rojas1-4/+4
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13307/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-28MIPS: ralink: fix MT7628 pinmux typosÁlvaro Fernández Rojas1-2/+2
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13306/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13mips: mt7620: fallback to SDRAM when syscfg0 does not have a valid value for the memory typeSashka Nochkin1-2/+5
Mediatek MT7620 SoC has syscfg0 bits where it sets the type of memory being used. However, sometimes those bits are not set properly (reading "11"). In this case, the SoC assumes SDRAM. The patch below reflects that. Signed-off-by: Sashka Nochkin <linux-mips@durdom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13135/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13MIPS: Change my email addressJohn Crispin18-19/+19
The old address is no longer valid. Use the my new one instead. Signed-off-by: John Crispin <john@phrozen.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13201/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13MIPS: ralink: Make reset_control_ops constPhilipp Zabel1-1/+1
The reset_ops structure is never modified. Make it const. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: John Crispin <john@phrozen.org> Cc: linux-mips@linux-mips.org Cc: kernel@pengutronix.de Patchwork: https://patchwork.linux-mips.org/patch/12618/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: pci: Add MT7620a PCIE driverJohn Crispin1-0/+1
The "a" version of the MT7620 has single port PCIE bus. The driver is straightforward without any special magic required. The driver works on MT7620 and MT7628. There are a few magic values that get written to the pcie phy and a register of which we only know the name. I marked these places as vodoo in the comments above the code. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11996/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: Add a few missing clocksJohn Crispin3-0/+5
Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11995/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: Fix vendor string for mt7620John Crispin1-1/+1
Ralink was acquired by Mediatek. Represent this in the cpuinfo. It apparently confused people. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11994/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: Fix invalid assignment of SoC typeJohn Crispin1-1/+1
Commit 418d29c87061 ("MIPS: ralink: Unify SoC id handling") introduced broken code. We obviously need to assign the value. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11993/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: fix USB frequency scalingJohn Crispin1-1/+1
Commit 418d29c87061 ("MIPS: ralink: Unify SoC id handling") was not fully correct. The logic for the SoC check got inverted. We need to check if it is not a MT76x8. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11992/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: MT7688 pinmux fixesJohn Crispin1-30/+50
A few fixes to the pinmux data, 2 new muxes and a minor whitespace cleanup. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11991/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: add MT7621 supportJohn Crispin6-1/+298
MT7621 is based on a 1004k core. This patch adds support for the SoC. The timer and IRQ is just boiler plate as GIC has recently been moved to generic places in the kernel and just works. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11990/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-20MIPS: ralink: add a symbol for INTCJohn Crispin2-0/+6
Some of the newer SoCs use the GIC. This patch splits the INTC out into its own symbol, allowing us to add the gic code in the following patch. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11989/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-15Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds9-26/+101
Pull MIPS updates from Ralf Baechle: "These are the highlists of the main MIPS pull request for 4.4: - Add latencytop support - Support appended DTBs - VDSO support and initially use it for gettimeofday. - Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux - Support for the 5KE, an internal test core. - Switch all MIPS platfroms to libata drivers. - Improved support, cleanups for ralink and Lantiq platforms. - Support for the new xilfpga platform. - A number of DTB improvments for BMIPS. - Improved support for CM and CPS. - Minor JZ4740 and BCM47xx enhancements" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits) MIPS: idle: add case for CPU_5KE MIPS: Octeon: Support APPENDED_DTB MIPS: vmlinux: create a section for appended DTB MIPS: Clean up compat_siginfo_t MIPS: Fix PAGE_MASK definition MIPS: BMIPS: Enable GZIP ramdisk and timed printks MIPS: Add xilfpga defconfig MIPS: xilfpga: Add mipsfpga platform code MIPS: xilfpga: Add xilfpga device tree files. dt-bindings: MIPS: Document xilfpga bindings and boot style MIPS: Make MIPS_CMDLINE_DTB default MIPS: Make the kernel arguments from dtb available MIPS: Use USE_OF as the guard for appended dtb MIPS: BCM63XX: Use pr_* instead of printk MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND. MIPS: lantiq: Disable xbar fpi burst mode MIPS: lantiq: Force the crossbar to big endian MIPS: lantiq: Initialize the USB core on boot MIPS: lantiq: Return correct value for fpi clock on ar9 MIPS: ralink: Add missing clock on rt305x ...
2015-11-11MIPS: Make MIPS_CMDLINE_DTB defaultJonas Gorski1-2/+0
Seval of-enabled machines (bmips, lantiq, xlp, pistachio, ralink) copied the arguments from dtb to arcs_command_line to prevent the kernel from overwriting them. Since there is now an option to keep the dtb arguments, default to the new option remove the "backup" to arcs_command_line in case of USE_OF is enabled, except for those platforms that still take the bootloader arguments or do not use any at all. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: Ganesan Ramalingam <ganesanr@broadcom.com> Cc: Jayachandran C <jchandra@broadcom.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: James Hartley <james.hartley@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/11285/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Add missing clock on rt305xJohn Crispin1-0/+1
The rt305x support is missing a clock required by the ethernet driver. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11447/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Put the pci bus into reset state before rebooting the SoCJohn Crispin1-2/+10
Some pcie cards have problems after a reboot without this. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11446/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Don't set pm_power_offJohn Crispin1-1/+0
Setting pm_power_off is apprently wrong and makes drivers such as gpio-poweroff not work. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11445/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Remove check for CONFIG_PCI on non-PCI SoCsJohn Crispin1-3/+0
The code currently panics if PCI is enabled but the SoC has no PCI bus. This check is superfluous as the driver only loads if enabled in the devicetree. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11444/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Fix invalid tick countJohn Crispin1-1/+1
The current code adds the delta twice, which is obviously wrong. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11443/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Add tty detectionJohn Crispin1-0/+26
MT7688 has several uarts that can be used for console. There are several boards in the wild, that use ttyS1 or ttyS2. This patch applies a simply autodetection routine to figure out which ttyS the bootloader used as console. The uarts come up in 6 bit mode by default. The bootloader will have set 8 bit mode on the console. Find that 8bit tty and use it. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11459/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Fix usb issue during frequency scalingJohn Crispin1-0/+20
If the USB HCD is running and the cpu is scaled too low, then the USB stops working. Increase the idle speed of the core to fix this if the kernel is built with USB support. The "magic" values are taken from the Ralink SDK Kernel. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11441/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Unify SoC id handlingJohn Crispin5-16/+19
This makes detection a lot easier for audio, wifi, ... drivers. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11440/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-11MIPS: ralink: Add support for mt7688John Crispin1-6/+29
MT7688 is similar tot he MT7628 but has a different wifi radio. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11439/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-10-01clocksource: cosmetic: Drop OF 'dependency' from symbolsMarc Zyngier1-1/+1
Seeing the 'of' characters in a symbol that is being called from ACPI seems to freak out people. So let's do a bit of pointless renaming so that these folks do feel at home. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-09-16genirq: Remove irq argument from irq flow handlersThomas Gleixner1-1/+1
Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-03MIPS: rt3352: Migrate to new 'set-state' interfaceViresh Kumar1-29/+30
Migrate ralink driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-mips@linux-mips.org Cc: linaro-kernel@lists.linaro.org Cc: Thomas Gleixner <tglx@linutronix.de> Patchwork: https://patchwork.linux-mips.org/patch/10610/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-03MIPS: Export get_c0_perfcount_int()Felix Fietkau1-0/+1
get_c0_perfcount_int is tested from oprofile code. If oprofile is compiled as module, get_c0_perfcount_int needs to be exported, otherwise it cannot be resolved. Fixes: a669efc4a3b4 ("MIPS: Add hook to get C0 performance counter interrupt") Cc: stable@vger.kernel.org # v3.19+ Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: linux-mips@linux-mips.org Cc: abrestic@chromium.org Patchwork: https://patchwork.linux-mips.org/patch/10763/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-01Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-2/+1
Pull irq fixes from Thomas Gleixner: "This contains: - a series of fixes for interrupt drivers to prevent a potential race when installing a chained interrupt handler - a fix for cpumask pointer misuse - a fix for using the wrong interrupt number from struct irq_data - removal of unused code and outdated comments - a few new helper functions which allow us to cleanup the interrupt handling code further in 4.3 I decided against doing the cleanup at the end of this merge window and rather do the preparatory steps for 4.3, so we can run the final ABI change at the end of the 4.3 merge window with less risk" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) ARM/LPC32xx: Use irq not hwirq for __irq_set_handler_locked() genirq: Implement irq_set_handler_locked()/irq_set_chip_handler_name_locked() genirq: Introduce helper irq_desc_get_irq() genirq: Remove irq_node() genirq: Clean up outdated comments related to include/linux/irqdesc.h mn10300: Fix incorrect use of irq_data->affinity MIPS/ralink: Fix race in installing chained IRQ handler MIPS/pci: Fix race in installing chained IRQ handler MIPS/ath25: Fix race in installing chained IRQ handler MIPS/ath25: Fix race in installing chained IRQ handler m68k/psc: Fix race in installing chained IRQ handler avr32/at32ap: Fix race in installing chained IRQ handler sh/intc: Fix race in installing chained IRQ handler sh/intc: Fix potential race in installing chained IRQ handler pinctrl/sun4i: Fix race in installing chained IRQ handler pinctrl/samsung: Fix race in installing chained IRQ handler pinctrl/samsung: Fix race in installing chained IRQ handler pinctrl/exynos: Fix race in installing chained IRQ handler pinctrl/st: Fix race in installing chained IRQ handler pinctrl/adi2: Fix race in installing chained IRQ handler ...
2015-06-25MIPS/ralink: Fix race in installing chained IRQ handlerThomas Gleixner1-2/+1
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); | -irq_set_chained_handler(E1, E3); ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); ... | -irq_set_chained_handler(E1, E3); ... ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org
2015-06-21MIPS, IRQ: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu1-1/+1
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Aleksey Makarov <aleksey.makarov@auriga.com> Cc: David Daney <david.daney@cavium.com> Cc: Christoph Lameter <cl@linux.com> Cc: John Crispin <blogic@openwrt.org> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: linux-acpi@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10086/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-01MIPS: ralink: Fix clearing the illegal access interruptJonas Gorski1-1/+1
Due to a typo the illegal access interrupt is never cleared in by the interupt handler, causing an effective deadlock on the first illegal access. This was broken since the code was introduced in 5433acd81e87 ("MIPS: ralink: add illegal access driver"), but only exposed when the Kconfig symbol was added, thus enabling the code. Cc: <stable@vger.kernel.org> [3.18+] Fixes: a7b7aad383c ("MIPS: ralink: add missing symbol for RALINK_ILL_ACC") Signed-off-by: Jonas Gorski <jogo@openwrt.org> Cc: linux-mips@linux-mips.org Cc: John Crispin <blogic@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/10172/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-10MIPS: ralink: add missing symbol for RALINK_ILL_ACCJohn Crispin1-0/+5
A driver was added in commit 5433acd81e87 ("MIPS: ralink: add illegal access driver") without the Kconfig section being added. Fix this by adding the symbol to the Kconfig file. Signed-off-by: John Crispin <blogic@openwrt.org> Reported-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9299/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-12-14Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds1-1/+0
Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-11-24MIPS: ralink: add rt2880 pci driverJohn Crispin1-0/+1
Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8034/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: allow loading irq registers from the devicetreeJohn Crispin1-10/+25
Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8029/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: add mt7628an supportJohn Crispin2-46/+232
Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8031/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: add support for MT7620nJohn Crispin1-7/+13
This is the small version of MT7620a. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8030/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: cleanup early_printkJohn Crispin1-15/+30
Add support for the new MT7621/8 SoC and kill ifdefs. Cleanup some whitespace error while we are at it. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8028/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: cleanup the soc specific pinmux dataJohn Crispin6-387/+180
Before we had a pinctrl driver we used a custom OF api. This patch converts the soc specific pinmux data to a new set of structs. We also add some new pinmux setings. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8009/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: copy the commandline from the devicetreeJohn Crispin1-0/+2
This is a regression caused by: commit afb46f7996e91aeb36e07bc92cf96e8045bec00e Author: Rob Herring <robh@kernel.org> Date: Wed Apr 2 19:07:24 2014 -0500 mips: ralink: convert to use unflatten_and_copy_device_tree Make the of init code reuse the cmdline defined inside the dts. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8008/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: add a bootrom dumper moduleJohn Crispin2-0/+50
This patch adds a trivial driver that allows userland to extract the bootrom of a SoC via debugfs. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8002/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: add rt3883 wmac clockJohn Crispin1-0/+1
Register the wireless mac clock on rti3883. This is required by the wifi driver. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8007/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24MIPS: ralink: add rt2880 wmac clockJohn Crispin1-1/+2
Register the wireleass mac clock on rt2880. This is required by the wifi driver. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/8006/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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