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2016-04-12Merge tag 'mvebu-fixes-4.6-1' of git://git.infradead.org/linux-mvebu into fixesOlof Johansson1-1/+1
mvebu fixes for 4.6 (part 1) - fix USB adress register for Linksys Armada 388 based boards - fix build warning in mvebu-mbus * tag 'mvebu-fixes-4.6-1' of git://git.infradead.org/linux-mvebu: ARM: mvebu: Correct unit address for linksys bus: mvebu-mbus: use %pa to print phys_addr_t Signed-off-by: Olof Johansson <olof@lixom.net>
2016-04-12bus: uniphier-system-bus: fix condition of overlap checkKunihiko Hayashi1-1/+1
This patch fixes condition whether the specified address ranges overlap each other. Fixes: 4b7f48d395a7 ("bus: uniphier-system-bus: add UniPhier System Bus driver") Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-30bus: mvebu-mbus: use %pa to print phys_addr_tArnd Bergmann1-1/+1
A recent change to the mbus driver added a warning printk that prints a phys_addr_t using the %x format string, which fails in case we build with 64-bit phys_addr_t: drivers/bus/mvebu-mbus.c: In function 'mvebu_mbus_get_dram_win_info': drivers/bus/mvebu-mbus.c:975:9: error: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'phys_addr_t {aka long long unsigned int}' [-Werror=format=] This uses the special %pa format string instead, so we always print the correct type. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: f2900acea801 ("bus: mvebu-mbus: provide api for obtaining IO and DRAM window information") Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-03-21Merge tag 'arm64-perf' of ↵Linus Torvalds2-203/+428
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm[64] perf updates from Will Deacon: "I have another mixed bag of ARM-related perf patches here. It's about 25% CPU and 75% interconnect, but with drivers/bus/ languishing without an obvious maintainer or tree, Olof and I agreed to keep all of these PMU patches together. I suspect a whole load of code from drivers/bus/arm-* can be moved under drivers/perf/, so that's on the radar for the future. Summary: - Initial support for ARMv8.1 CPU PMUs - Support for the CPU PMU in Cavium ThunderX - CPU PMU support for systems running 32-bit Linux in secure mode - Support for the system PMU in ARM CCI-550 (Cache Coherent Interconnect)" * tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (26 commits) drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC arm-cci: remove unused variable arm-cci: don't return value from void function arm-cci: make private functions static arm-cci: CoreLink CCI-550 PMU driver arm-cci500: Rearrange PMU driver for code sharing with CCI-550 PMU arm-cci: CCI-500: Work around PMU counter writes arm-cci: Provide hook for writing to PMU counters arm-cci: Add helper to enable PMU without synchornising counters arm-cci: Add routines to save/restore all counters arm-cci: Get the status of a counter arm-cci: write_counter: Remove redundant check arm-cci: Delay PMU counter writes to pmu::pmu_enable arm-cci: Refactor CCI PMU enable/disable methods arm-cci: Group writes to counter arm-cci: fix handling cpumask_any_but return value arm-cci: simplify sysfs attr handling drivers/perf: arm_pmu: implement CPU_PM notifier arm64: dts: Add Cavium ThunderX specific PMU ...
2016-03-21Merge tag 'armsoc-drivers' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, these contain various things that touch the drivers/ directory but got merged through arm-soc for practical reasons: - Rockchip rk3368 gains power domain support - Small updates for the ARM spmi driver - The Atmel PMC driver saw a larger rework, touching both arch/arm/mach-at91 and drivers/clk/at91 - All reset controller driver changes alway get merged through arm-soc, though this time the largest change is the addition of a MIPS pistachio reset driver - One bugfix for the NXP (formerly Freescale) i.MX weim bus driver" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) bus: imx-weim: Take the 'status' property value into account clk: at91: remove useless includes clk: at91: pmc: remove useless capacities handling clk: at91: pmc: drop at91_pmc_base usb: gadget: atmel: access the PMC using regmap ARM: at91: remove useless includes and function prototypes ARM: at91: pm: move idle functions to pm.c ARM: at91: pm: find and remap the pmc ARM: at91: pm: simply call at91_pm_init clk: at91: pmc: move pmc structures to C file clk: at91: pmc: merge at91_pmc_init in atmel_pmc_probe clk: at91: remove IRQ handling and use polling clk: at91: make use of syscon/regmap internally clk: at91: make use of syscon to share PMC registers in several drivers hwmon: (scpi) add energy meter support firmware: arm_scpi: add support for 64-bit sensor values firmware: arm_scpi: decrease Tx timeout to 20ms firmware: arm_scpi: fix send_message and sensor_get_value for big-endian reset: sti: Make reset_control_ops const reset: zynq: Make reset_control_ops const ...
2016-03-14bus: mvebu-mbus: provide api for obtaining IO and DRAM window informationMarcin Wojtas1-0/+52
This commit enables finding appropriate mbus window and obtaining its target id and attribute for given physical address in two separate routines, both for IO and DRAM windows. This functionality is needed for Armada XP/38x Network Controller's Buffer Manager and PnC configuration. [gregory.clement@free-electrons.com: Fix size test for mvebu_mbus_get_dram_win_info] Signed-off-by: Marcin Wojtas <mw@semihalf.com> [DRAM window information reference in LKv3.10] Signed-off-by: Evan Wang <xswang@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13bus: imx-weim: Take the 'status' property value into accountFabio Estevam1-1/+1
Currently we have an incorrect behaviour when multiple devices are present under the weim node. For example: &weim { ... status = "okay"; sram@0,0 { ... status = "okay"; }; mram@0,0 { ... status = "disabled"; }; }; In this case only the 'sram' device should be probed and not 'mram'. However what happens currently is that the status variable is ignored, causing the 'sram' device to be disabled and 'mram' to be enabled. Change the weim_parse_dt() function to use for_each_available_child_of_node()so that the devices marked with 'status = disabled' are not probed. Cc: <stable@vger.kernel.org> Suggested-by: Wolfgang Netbal <wolfgang.netbal@sigmatek.at> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-01Merge tag 'sunxi-drivers-for-4.6' of ↵Arnd Bergmann1-2/+2
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/drivers Merge "Allwinner drivers changes for 4.6" from Maxime Ripard: Some minor fixes for the RSB and SRAM controller drivers * tag 'sunxi-drivers-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: drivers: soc: sunxi: Fix mask generation for SRAM mapping drivers: sunxi-rsb: fix error output type
2016-03-01arm-cci: remove unused variableWill Deacon1-3/+0
hw_counter is unused in the PMU IRQ handler, so remove it. Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: don't return value from void functionWill Deacon1-2/+2
pmu_write_register has a void return type, so remove the useless return statement. Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: make private functions staticWill Deacon1-2/+2
cci_pmu_sync_counters and pmu_event_set_period are internal functions to the CCI PMU driver, so make them static to avoid polluting the kernel namespace. Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: CoreLink CCI-550 PMU driverSuzuki K Poulose2-5/+88
Add ARM CoreLink CCI-550 cache coherent interconnect PMU driver support. The CCI-550 PMU shares all the attributes of CCI-500 PMU, except for an additional master interface (MI-6 - 0xe). CCI-550 requires the same work around as for CCI-500 to write to the PMU counter. Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci500: Rearrange PMU driver for code sharing with CCI-550 PMUSuzuki K Poulose2-109/+113
CCI-550 PMU shares most of the CCI-500 PMU attributes including the event format, PMU event codes. The only difference is an additional master interface (MI6 - 0xe). Hence we share the driver code for both, except for a model specific event validate method. This patch renames the common CCI500 symbols to CCI5xx, including the Kconfig symbol. No functional changes to the PMU driver. Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: CCI-500: Work around PMU counter writesSuzuki K Poulose1-0/+66
The CCI PMU driver sets the event counter to the half of the maximum value(2^31) it can count before we start the counters via pmu_event_set_period(). This is done to give us the best chance to handle the overflow interrupt, taking care of extreme interrupt latencies. However, CCI-500 comes with advanced power saving schemes, which disables the clock to the event counters unless the counters are enabled to count (PMCR.CEN). This prevents the driver from writing the period to the counters before starting them. Also, there is no way we can reset the individual event counter to 0 (PMCR.RST resets all the counters, losing their current readings). However the value of the counter is preserved and could be read back, when the counters are not enabled. So we cannot reliably use the counters and compute the number of events generated during the sampling period since we don't have the value of the counter at start. This patch works around this issue by changing writes to the counter with the following steps. 1) Disable all the counters (remembering any counters which were enabled) 2) Enable the PMU, now that all the counters are disabled. For each counter to be programmed, repeat steps 3-7 3) Save the current event and program the target counter to count an invalid event, which by spec is guaranteed to not-generate any events. 4) Enable the target counter. 5) Write to the target counter. 6) Disable the target counter 7) Restore the event back on the target counter. 8) Disable the PMU 9) Restore the status of the all the counters Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Provide hook for writing to PMU countersSuzuki K Poulose1-1/+10
Add a hook for writing to CCI PMU counters. This callback can be used for CCI models which requires some extra work to program the PMU counter values. To accommodate group writes and single counter writes, the call back accepts a bitmask of the counter indices which need to be programmed with the given value. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Add helper to enable PMU without synchornising countersSuzuki K Poulose1-5/+10
On CCI-500 writing to a counter requires turning the PMU on. So, synchronising the counter state should not be performed for such special cases, while turning the PMU on. This patch adds a helper, __cci_pmu_enable_nosync(), without flushing the counter states. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Add routines to save/restore all countersSuzuki K Poulose1-0/+38
Adds helper routines to disable the counter controls for all the counters on the CCI PMU and restore it back, by preserving the original state in caller provided mask. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Get the status of a counterSuzuki K Poulose1-0/+6
Add helper routines to check if the counter is enabled or not. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: write_counter: Remove redundant checkSuzuki K Poulose1-10/+3
pmu_write_counter() is now only called from pmu_write_counters(), which does so for each set index in the given mask, bounded by cci_pmu->num_cntrs. So, there is no need for an extra check to make sure the given counter is valid inside pmu_write_counter. This patch gets rid of that. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Delay PMU counter writes to pmu::pmu_enableSuzuki K Poulose1-5/+52
CCI PMU driver always reprograms the counters to a safe value (half of the counter max, = 2^31) before starting the profiling to account for extreme interrupt latencies. Also, the cost of writing to a PMU counter could be very costly on some PMUs(e.g, CCI-500). In order to ammortise the cost of programming the counters, this patch delays the counter writes to pmu::pmu_enable(). We use the PER_HES_ARCH flag to keep track of the counters which need to be programmed. Before turning on the PMU, we go through the counters that were marked for write, and perform the operation in a batch. To unify all the counter writes to pmu_enable(), this patch also makes sure that we disable-and-enable the PMU in the irq handler to program any counters that overflowed. Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Refactor CCI PMU enable/disable methodsSuzuki K Poulose1-10/+22
This patch refactors the CCI PMU driver code a little bit to make it easier share the code for enabling/disabling the CCI PMU. This will be used by the hooks to work around the special cases where writing to a counter is not always that easy(e.g, CCI-500) No functional changes. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: Group writes to counterSuzuki K Poulose1-0/+15
Add a helper to group the writes to PMU counter, this will be used to delay setting the event period to pmu::pmu_enable() Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: fix handling cpumask_any_but return valueAndrzej Hajda1-1/+1
cpumask_any_but returns value >= nr_cpu_ids if there are no more CPUs. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-03-01arm-cci: simplify sysfs attr handlingMark Rutland1-75/+25
There's no need to dynamically initialise attribute pointers when we can get the compiler to do it for us. We also don't need a dev_ext_attribute for the cpumask, as the drvdata for a PMU device is a pointer to struct pmu. Cc: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-02-01Merge tag 'vexpress-for-v4.5/fixes-rc2' of ↵Olof Johansson1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes vexpress fixes for v4.5 Couple of minor fixes for vexpress platforms: 1. Add missing of_node_put in vexpress config bus 2. Add missing DMA-330 abort interrupt on Juno platforms * tag 'vexpress-for-v4.5/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: arm64: dts: Add missing DMA Abort interrupt to Juno bus: vexpress-config: Add missing of_node_put Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01bus: uniphier-system-bus: revive tristate promptMasahiro Yamada1-1/+1
At first, commit 4b7f48d395a7 ("bus: uniphier-system-bus: add UniPhier System Bus driver") introduced this driver as a tristate one. Then, commit 326ea45aa827 ("bus: uniphier: allow only built-in driver") temporarily made it boolean in order to fix a link error in case it is compiled as a module. The root cause was fixed by commit b80443c2211c ("of/platform: export of_default_bus_match_table"). Now this driver can really be a module. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-02-01bus: vexpress-config: Add missing of_node_putAmitoj Kaur Chawla1-1/+3
for_each_compatible_node performs an of_node_get on each iteration, so to break out of the loop an of_node_put is required. Found using Coccinelle. The semantic patch used for this is as follows: // <smpl> @@ expression e; local idexpression n; @@ for_each_compatible_node(n, ...) { ... when != of_node_put(n) when != e = n ( return n; + of_node_put(n); ? return ...; ) ... } // </smpl> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-01-25drivers: sunxi-rsb: fix error output typeAndre Przywara1-2/+2
"len" is actually a size_t in this function here, so properly annotate the dev_err printf type to allow compilation for 64-bit architectures. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-01-21Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-0/+290
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Driver updates for ARM SoCs. Some for SoC-family code under drivers/soc, but also some other driver updates that don't belong anywhere else. We also bring in the drivers/reset code through arm-soc. Some of the larger updates: - Qualcomm support for SMEM, SMSM, SMP2P. All used to communicate with other parts of the chip/board on these platforms, all proprietary protocols that don't fit into other subsystems and live in drivers/soc for now. - System bus driver for UniPhier - Driver for the TI Wakeup M3 IPC device - Power management for Raspberry PI + Again a bunch of other smaller updates and patches" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) bus: uniphier: allow only built-in driver ARM: bcm2835: clarify RASPBERRYPI_FIRMWARE dependency MAINTAINERS: Drop Kumar Gala from QCOM bus: uniphier-system-bus: add UniPhier System Bus driver ARM: bcm2835: add rpi power domain driver dt-bindings: add rpi power domain driver bindings ARM: bcm2835: Define two new packets from the latest firmware. drivers/soc: make mediatek/mtk-scpsys.c explicitly non-modular soc: mediatek: SCPSYS: Add regulator support MAINTAINERS: Change QCOM entries soc: qcom: smd-rpm: Add existing platform support memory/tegra: Add number of TLB lines for Tegra124 reset: hi6220: fix modular build soc: qcom: Introduce WCNSS_CTRL SMD client ARM: qcom: select ARM_CPU_SUSPEND for power management MAINTAINERS: Add rules for Qualcomm dts files soc: qcom: enable smsm/smp2p modular build serial: msm_serial: Make config tristate soc: qcom: smp2p: Qualcomm Shared Memory Point to Point soc: qcom: smsm: Add driver for Qualcomm SMSM ...
2016-01-01bus: uniphier: allow only built-in driverArnd Bergmann1-1/+1
Building the newly added uniphier system bus driver as a module causes a link error, so let's only allow it to be built-in for now, to fix allmodconfig: ERROR: "of_default_bus_match_table" [drivers/bus/uniphier-system-bus.ko] undefined! Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-22bus: sunxi-rsb: Fix peripheral IC mapping runtime addressChen-Yu Tsai1-1/+1
0x4e is the runtime address normally associated with perihperal ICs. 0x45 is not a valid runtime address. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-22bus: sunxi-rsb: Fix primary PMIC mapping hardware addressChen-Yu Tsai1-1/+1
The primary PMICs use 0x3a3 as their hardware address, not 0x3e3. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-22bus: uniphier-system-bus: add UniPhier System Bus driverMasahiro Yamada3-0/+290
The UniPhier System Bus is an external bus that connects on-board devices to the UniPhier SoC. Each bank (chip select) is dynamically mapped to the CPU-viewed address base via the bus controller. The bus controller must be configured before any access to the bus. This driver parses the "ranges" property of the System Bus node and initialized the bus controller. After the bus becomes ready, devices below it are populated. Note: Each bank can be mapped anywhere in the supported address space; there is nothing preventing us from assigning bank 0 on 0x42000000, 0x43000000, or anywhere as long as such region is not used by others. So, the "ranges" is just one possible software configuration, which does not seem to fit in device tree because device tree is a hardware description language. However, of_translate_address() requires "ranges" in every bus node between CPUs and device mapped on the CPU address space. In other words, "ranges" properties must be statically defined in device tree. After some discussion, I decided the dynamic address reassignment by the driver is too bothersome. Instead, the device tree should provide a reasonable translation setup that the OS can rely on. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-15Merge tag 'sunxi-fixes-for-4.4' of ↵Kevin Hilman1-2/+2
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes Merge "Allwinner fixes for 4.4" from Maxime Ripard: Allwinner fixes for 4.4 Two patches, one to fix the touchscreen axis on one Allwinner board, and the other one fixing a mutex unlocking issue on one error path in the RSB driver. * tag 'sunxi-fixes-for-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: bus: sunxi-rsb: unlock on error in sunxi_rsb_read() ARM: dts: sunxi: sun6i-a31s-primo81.dts: add touchscreen axis swapping property
2015-11-17bus: sunxi-rsb: unlock on error in sunxi_rsb_read()Dan Carpenter1-2/+2
Don't forget to unlock before returning an error code. Fixes: d787dcdb9c8f ('bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-11-12Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixesTony Lindgren4-2/+798
2015-11-11Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-0/+795
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "As we've enabled multiplatform kernels on ARM, and greatly done away with the contents under arch/arm/mach-*, there's still need for SoC-related drivers to go somewhere. Many of them go in through other driver trees, but we still have drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code that might be shared between ARM and ARM64 (or just in general makes sense to not have under the architecture directory). This branch contains mostly such code: - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate with power management blocks on these SoCs for use by clock, regulator and bus frequency drivers. - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs. - Drivers for ARM's SCPI (System Control Processor). Not to be confused with PSCI (Power State Coordination Interface). SCPI is used to communicate with the assistant embedded cores doing power management, and we have yet to see how many of them will implement this for their hardware vs abstracting in other ways (or not at all like in the past). - To make confusion between SCPI and PSCI more likely, this release also includes an update of PSCI to interface version 1.0. - Rockchip support for power domains. - A driver to talk to the firmware on Raspberry Pi" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits) soc: qcom: smd-rpm: Correct size of outgoing message bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings ARM: bcm2835: add mutual inclusion protection drivers: psci: make PSCI 1.0 functions initialization version dependent dt-bindings: Correct paths in Rockchip power domains binding document soc: rockchip: power-domain: don't try to print the clock name in error case soc: qcom/smem: add HWSPINLOCK dependency clk: berlin: add cpuclk ARM: berlin: dts: add CLKID_CPU for BG2Q ARM: bcm2835: Add the Raspberry Pi firmware driver soc: qcom: smem: Move RPM message ram out of smem DT node soc: qcom: smd-rpm: Correct the active vs sleep state flagging soc: qcom: smd: delete unneeded of_node_put firmware: qcom-scm: build for correct architecture level soc: qcom: smd: Correct SMEM items for upper channels qcom-scm: add missing prototype for qcom_scm_is_available() qcom-scm: fix endianess issue in __qcom_scm_is_call_available soc: qcom: smd: Reject send of too big packets soc: qcom: smd: Handle big endian CPUs ...
2015-10-26bus: sunxi-rsb: Add driver for Allwinner Reduced Serial BusChen-Yu Tsai3-0/+795
Reduced Serial Bus (RSB) is an Allwinner proprietery interface used to communicate with PMICs and other peripheral ICs. RSB is a two-wire push-pull serial bus that supports 1 master device and up to 15 active slave devices. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-10-15bus: arm-ccn: Fix irq affinity setting on CPU migrationPawel Moll1-1/+2
When PMU context is migrating between CPUs, interrupt affinity is set as well. Only this should not happen when the CCN interrupt is not being used at all (the driver is using a hrtimer tick instead). Fixed now. Cc: <stable@vger.kernel.org> # 4.2+ Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-15bus: arm-ccn: Handle correctly no-more-cpus casePawel Moll1-1/+1
When migrating events the driver picks another cpu using cpumask_any_but() function, which returns value >= nr_cpu_ids when there is none available, not a negative value as the code assumed. Fixed now. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-10-13bus: omap-ocp2scp: Fix module aliasAxel Lin1-1/+1
Remove extra space between platform prefix and driver name in MODULE_ALIAS. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-29arm-cci500: Don't enable PMU driver by defaultSuzuki K. Poulose1-1/+0
Disable building CCI-500 PMU driver by default. Reported-by: Russell King <linux@arm.linux.org.uk> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: arm@kernel.org Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-09-09Merge tag 'regmap-v4.3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap updates from Mark Brown: "This has been a busy release for regmap. By far the biggest set of changes here are those from Markus Pargmann which implement support for block transfers in smbus devices. This required quite a bit of refactoring but leaves us better able to handle odd restrictions that controllers may have and with better performance on smbus. Other new features include: - Fix interactions with lockdep for nested regmaps (eg, when a device using regmap is connected to a bus where the bus controller has a separate regmap). Lockdep's default class identification is too crude to work without help. - Support for must write bitfield operations, useful for operations which require writing a bit to trigger them from Kuniori Morimoto. - Support for delaying during register patch application from Nariman Poushin. - Support for overriding cache state via the debugfs implementation from Richard Fitzgerald" * tag 'regmap-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (25 commits) regmap: fix a NULL pointer dereference in __regmap_init regmap: Support bulk reads for devices without raw formatting regmap-i2c: Add smbus i2c block support regmap: Add raw_write/read checks for max_raw_write/read sizes regmap: regmap max_raw_read/write getter functions regmap: Introduce max_raw_read/write for regmap_bulk_read/write regmap: Add missing comments about struct regmap_bus regmap: No multi_write support if bus->write does not exist regmap: Split use_single_rw internally into use_single_read/write regmap: Fix regmap_bulk_write for bus writes regmap: regmap_raw_read return error on !bus->read regulator: core: Print at debug level on debugfs creation failure regmap: Fix regmap_can_raw_write check regmap: fix typos in regmap.c regmap: Fix integertypes for register address and value regmap: Move documentation to regmap.h regmap: Use different lockdep class for each regmap init call thermal: sti: Add parentheses around bridge->ops->regmap_init call mfd: vexpress: Add parentheses around bridge->ops->regmap_init call regmap: debugfs: Fix misuse of IS_ENABLED ...
2015-09-03MIPS: Remove "weak" from mips_cdmm_phys_base() declarationBjorn Helgaas1-1/+13
Weak header file declarations are error-prone because they make every definition weak, and the linker chooses one based on link order (see 10629d711ed7 ("PCI: Remove __weak annotation from pcibios_get_phb_of_node decl")). mips_cdmm_phys_base() is defined only in arch/mips/mti-malta/malta-memory.c so there's no problem with multiple definitions. But it works better to have a weak default implementation and allow a strong function to override it. Then we don't have to test whether a definition is present, and if there are ever multiple strong definitions, we get a link error instead of calling a random definition. Add a weak mips_cdmm_phys_base() definition and remove the weak annotation from the declaration in arch/mips/include/asm/cdmm.h. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10688/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-07mfd: vexpress: Add parentheses around bridge->ops->regmap_init callNicolas Boichat1-1/+1
regmap_init(...) is a macro since commit "regmap: Use different lockdep class for each regmap init call". That same name is used as a function pointer: prevent its expansion by adding parentheses around the function pointer. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-26Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-232/+974
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Kevin Hilman: "Some of these are for drivers/soc, where we're now putting SoC-specific drivers these days. Some are for other driver subsystems where we have received acks from the appropriate maintainers. Some highlights: - simple-mfd: document DT bindings and misc updates - migrate mach-berlin to simple-mfd for clock, pinctrl and reset - memory: support for Tegra132 SoC - memory: introduce tegra EMC driver for scaling memory frequency - misc. updates for ARM CCI and CCN busses" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) drivers: soc: sunxi: Introduce SoC driver to map SRAMs arm-cci: Add aliases for PMU events arm-cci: Add CCI-500 PMU support arm-cci: Sanitise CCI400 PMU driver specific code arm-cci: Abstract handling for CCI events arm-cci: Abstract out the PMU counter details arm-cci: Cleanup PMU driver code arm-cci: Do not enable CCI-400 PMU by default firmware: qcom: scm: Add HDCP Support ARM: berlin: add an ADC node for the BG2Q ARM: berlin: remove useless chip and system ctrl compatibles clk: berlin: drop direct of_iomap of nodes reg property ARM: berlin: move BG2Q clock node ARM: berlin: move BG2CD clock node ARM: berlin: move BG2 clock node clk: berlin: prepare simple-mfd conversion pinctrl: berlin: drop SoC stub provided regmap ARM: berlin: move pinctrl to simple-mfd nodes pinctrl: berlin: prepare to use regmap provided by syscon reset: berlin: drop arch_initcall initialization ...
2015-06-26Merge tag 'armsoc-soc' of ↵Linus Torvalds1-2/+11
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform support updates from Kevin Hilman: "Our SoC branch usually contains expanded support for new SoCs and other core platform code. Some highlights from this round: - sunxi: SMP support for A23 SoC - socpga: big-endian support - pxa: conversion to common clock framework - bcm: SMP support for BCM63138 - imx: support new I.MX7D SoC - zte: basic support for ZX296702 SoC" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits) ARM: zx: Add basic defconfig support for ZX296702 ARM: dts: zx: add an initial zx296702 dts and doc clk: zx: add clock support to zx296702 dt-bindings: Add #defines for ZTE ZX296702 clocks ARM: socfpga: fix build error due to secondary_startup MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS ARM: ep93xx: simone: support for SPI-based MMC/SD cards MAINTAINERS: update Shawn's email to use kernel.org one ARM: socfpga: support suspend to ram ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10 ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5 ARM: EXYNOS: register power domain driver from core_initcall ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs ARM: SAMSUNG: Constify platform_device_id ARM: EXYNOS: Constify irq_domain_ops ARM: EXYNOS: add coupled cpuidle support for Exynos3250 ARM: EXYNOS: add exynos_get_boot_addr() helper ARM: EXYNOS: add exynos_set_boot_addr() helper ARM: EXYNOS: make exynos_core_restart() less verbose ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout ...
2015-06-24Merge tag 'pm+acpi-4.2-rc1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael Wysocki: "The rework of backlight interface selection API from Hans de Goede stands out from the number of commits and the number of affected places perspective. The cpufreq core fixes from Viresh Kumar are quite significant too as far as the number of commits goes and because they should reduce CPU online/offline overhead quite a bit in the majority of cases. From the new featues point of view, the ACPICA update (to upstream revision 20150515) adding support for new ACPI 6 material to ACPICA is the one that matters the most as some new significant features will be based on it going forward. Also included is an update of the ACPI device power management core to follow ACPI 6 (which in turn reflects the Windows' device PM implementation), a PM core extension to support wakeup interrupts in a more generic way and support for the ACPI _CCA device configuration object. The rest is mostly fixes and cleanups all over and some documentation updates, including new DT bindings for Operating Performance Points. There is one fix for a regression introduced in the 4.1 cycle, but it adds quite a number of lines of code, it wasn't really ready before Thursday and you were on vacation, so I refrained from pushing it on the last minute for 4.1. Specifics: - ACPICA update to upstream revision 20150515 including basic support for ACPI 6 features: new ACPI tables introduced by ACPI 6 (STAO, XENV, WPBT, NFIT, IORT), changes related to the other tables (DTRM, FADT, LPIT, MADT), new predefined names (_BTH, _CR3, _DSD, _LPI, _MTL, _PRR, _RDI, _RST, _TFP, _TSN), fixes and cleanups (Bob Moore, Lv Zheng). - ACPI device power management core code update to follow ACPI 6 which reflects the ACPI device power management implementation in Windows (Rafael J Wysocki). - rework of the backlight interface selection logic to reduce the number of kernel command line options and improve the handling of DMI quirks that may be involved in that and to make the code generally more straightforward (Hans de Goede). - fixes for the ACPI Embedded Controller (EC) driver related to the handling of EC transactions (Lv Zheng). - fix for a regression related to the ACPI resources management and resulting from a recent change of ACPI initialization code ordering (Rafael J Wysocki). - fix for a system initialization regression related to ACPI introduced during the 3.14 cycle and caused by running the code that switches the platform over to the ACPI mode too early in the initialization sequence (Rafael J Wysocki). - support for the ACPI _CCA device configuration object related to DMA cache coherence (Suravee Suthikulpanit). - ACPI/APEI fixes and cleanups (Jiri Kosina, Borislav Petkov). - ACPI battery driver cleanups (Luis Henriques, Mathias Krause). - ACPI processor driver cleanups (Hanjun Guo). - cleanups and documentation update related to the ACPI device properties interface based on _DSD (Rafael J Wysocki). - ACPI device power management fixes (Rafael J Wysocki). - assorted cleanups related to ACPI (Dominik Brodowski, Fabian Frederick, Lorenzo Pieralisi, Mathias Krause, Rafael J Wysocki). - fix for a long-standing issue causing General Protection Faults to be generated occasionally on return to user space after resume from ACPI-based suspend-to-RAM on 32-bit x86 (Ingo Molnar). - fix to make the suspend core code return -EBUSY consistently in all cases when system suspend is aborted due to wakeup detection (Ruchi Kandoi). - support for automated device wakeup IRQ handling allowing drivers to make their PM support more starightforward (Tony Lindgren). - new tracepoints for suspend-to-idle tracing and rework of the prepare/complete callbacks tracing in the PM core (Todd E Brandt, Rafael J Wysocki). - wakeup sources framework enhancements (Jin Qian). - new macro for noirq system PM callbacks (Grygorii Strashko). - assorted cleanups related to system suspend (Rafael J Wysocki). - cpuidle core cleanups to make the code more efficient (Rafael J Wysocki). - powernv/pseries cpuidle driver update (Shilpasri G Bhat). - cpufreq core fixes related to CPU online/offline that should reduce the overhead of these operations quite a bit, unless the CPU in question is physically going away (Viresh Kumar, Saravana Kannan). - serialization of cpufreq governor callbacks to avoid race conditions in some cases (Viresh Kumar). - intel_pstate driver fixes and cleanups (Doug Smythies, Prarit Bhargava, Joe Konno). - cpufreq driver (arm_big_little, cpufreq-dt, qoriq) updates (Sudeep Holla, Felipe Balbi, Tang Yuantian). - assorted cleanups in cpufreq drivers and core (Shailendra Verma, Fabian Frederick, Wang Long). - new Device Tree bindings for representing Operating Performance Points (Viresh Kumar). - updates for the common clock operations support code in the PM core (Rajendra Nayak, Geert Uytterhoeven). - PM domains core code update (Geert Uytterhoeven). - Intel Knights Landing support for the RAPL (Running Average Power Limit) power capping driver (Dasaratharaman Chandramouli). - fixes related to the floor frequency setting on Atom SoCs in the RAPL power capping driver (Ajay Thomas). - runtime PM framework documentation update (Ben Dooks). - cpupower tool fix (Herton R Krzesinski)" * tag 'pm+acpi-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (194 commits) cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state x86: Load __USER_DS into DS/ES after resume PM / OPP: Add binding for 'opp-suspend' PM / OPP: Allow multiple OPP tables to be passed via DT PM / OPP: Add new bindings to address shortcomings of existing bindings ACPI: Constify ACPI device IDs in documentation ACPI / enumeration: Document the rules regarding the PRP0001 device ID ACPI / video: Make acpi_video_unregister_backlight() private acpi-video-detect: Remove old API toshiba-acpi: Port to new backlight interface selection API thinkpad-acpi: Port to new backlight interface selection API sony-laptop: Port to new backlight interface selection API samsung-laptop: Port to new backlight interface selection API msi-wmi: Port to new backlight interface selection API msi-laptop: Port to new backlight interface selection API intel-oaktrail: Port to new backlight interface selection API ideapad-laptop: Port to new backlight interface selection API fujitsu-laptop: Port to new backlight interface selection API eeepc-laptop: Port to new backlight interface selection API dell-wmi: Port to new backlight interface selection API ...
2015-06-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-0/+117
Pull crypto update from Herbert Xu: "Here is the crypto update for 4.2: API: - Convert RNG interface to new style. - New AEAD interface with one SG list for AD and plain/cipher text. All external AEAD users have been converted. - New asymmetric key interface (akcipher). Algorithms: - Chacha20, Poly1305 and RFC7539 support. - New RSA implementation. - Jitter RNG. - DRBG is now seeded with both /dev/random and Jitter RNG. If kernel pool isn't ready then DRBG will be reseeded when it is. - DRBG is now the default crypto API RNG, replacing krng. - 842 compression (previously part of powerpc nx driver). Drivers: - Accelerated SHA-512 for arm64. - New Marvell CESA driver that supports DMA and more algorithms. - Updated powerpc nx 842 support. - Added support for SEC1 hardware to talitos" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (292 commits) crypto: marvell/cesa - remove COMPILE_TEST dependency crypto: algif_aead - Temporarily disable all AEAD algorithms crypto: af_alg - Forbid the use internal algorithms crypto: echainiv - Only hold RNG during initialisation crypto: seqiv - Add compatibility support without RNG crypto: eseqiv - Offer normal cipher functionality without RNG crypto: chainiv - Offer normal cipher functionality without RNG crypto: user - Add CRYPTO_MSG_DELRNG crypto: user - Move cryptouser.h to uapi crypto: rng - Do not free default RNG when it becomes unused crypto: skcipher - Allow givencrypt to be NULL crypto: sahara - propagate the error on clk_disable_unprepare() failure crypto: rsa - fix invalid select for AKCIPHER crypto: picoxcell - Update to the current clk API crypto: nx - Check for bogus firmware properties crypto: marvell/cesa - add DT bindings documentation crypto: marvell/cesa - add support for Kirkwood and Dove SoCs crypto: marvell/cesa - add support for Orion SoCs crypto: marvell/cesa - add allhwsupport module parameter crypto: marvell/cesa - add support for all armada SoCs ...
2015-06-19Merge branches 'pm-sleep' and 'pm-runtime'Rafael J. Wysocki1-2/+2
* pm-sleep: PM / sleep: trace_device_pm_callback coverage in dpm_prepare/complete PM / wakeup: add a dummy wakeup_source to record statistics PM / sleep: Make suspend-to-idle-specific code depend on CONFIG_SUSPEND PM / sleep: Return -EBUSY from suspend_enter() on wakeup detection PM / tick: Add tracepoints for suspend-to-idle diagnostics PM / sleep: Fix symbol name in a comment in kernel/power/main.c leds / PM: fix hibernation on arm when gpio-led used with CPU led trigger ARM: omap-device: use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS bus: omap_l3_noc: add missed callbacks for suspend-to-disk PM / sleep: Add macro to define common noirq system PM callbacks PM / sleep: Refine diagnostic messages in enter_state() PM / wakeup: validate wakeup source before activating it. * pm-runtime: PM / Runtime: Update last_busy in rpm_resume PM / runtime: add note about re-calling in during device probe()