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path: root/drivers/mfd/db8500-prcmu.c
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2017-08-22mfd: db8500-prcmu: Get rid of cpufreq dependencyLinus Walleij1-41/+21
The ARMSS clock, also known as the operating point of the CPU, should not cross-depend on cpufreq like this. Move the code to use just frequencies and remove the false frequency (1GHz) and put in the actual frequency provided by the ARMSS clock (998400000 Hz) as part of the process. After this and the related cpufreq patch, the DB8500 will simply use the standard DT cpufreq driver to change the operating points through the common clock framework using the ARMSS clock. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-27mfd: Convert remaining uses of pr_warning to pr_warnJoe Perches1-1/+1
To enable eventual removal of pr_warning This makes pr_warn use consistent for drivers/mfd Prior to this patch, there were 4 uses of pr_warning and 9 uses of pr_warn in drivers/mfd Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-10-04mfd: db8500-prcmu: Remove unused *prcmu_set_ddr_opp() callsLee Jones1-19/+0
There are no call sites for these functions. Strip them out. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-07-12mfd: db8500 stop passing around platform dataArnd Bergmann1-7/+3
Except for the constant DB8500_PRCMU_FW_VERSION_OFFSET number, nothing is ever passed through the platform data and used in a driver, so we can simply stop passing it around. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-18Merge tag 'mfd-for-linus-4.6' of ↵Linus Torvalds1-5/+2
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Freescale Touch Screen ADC - X-Powers AXP PMIC with RSB - TI TPS65086 Power Management IC (PMIC) New Device Support: - Supply device PCI IDs for Intel Broxton Fix-ups: - Move to clkdev_create() API; intel_quark_i2c_gpio - Complete re-write of TI's TPS65912 Power Management IC (PMIC) - Remove unnecessary function argument; axp20x - Separate out bus related code; axp20x - Coding Style changes; axp20x - Allow more drivers to be compiled as modules - Work around false positive 'used uninitialised' warning; db8500-prcmu Bug Fixes: - Remove do_div(); fsl-imx25-gcq - Fix driver init when built-in; tps65010 - Fix clock-unregister leak; intel-lpss" * tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits) mfd: intel-lpss: Pass I2C configuration via properties on BXT mfd: imx6sx: Add PCIe register definitions for iomuxc gpr mfd: ipaq-micro: Use __maybe_unused to hide pm functions mfd: max77686: Add max77802 to I2C device ID table mfd: max77686: Export OF module alias information mfd: max77686: Allow driver to be built as a module mfd: stmpe: Add the proper PWM resources mfd: tps65090: Set regmap config reg counts properly mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled mfd: as3711: Set regmap config reg counts properly mfd: rc5t583: Set regmap config reg counts properly gpio: tps65086: Add GPO driver for the TPS65086 PMIC mfd: mt6397: Add platform device ID table mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists mfd: mt6397: Add MT6323 support to MT6397 driver mfd: mt6397: Add support for different Slave types mfd: mt6397: int_con and int_status may vary in location dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists mfd: Add documentation for ACT8945A DT bindings ...
2016-03-16mfd: db8500: Avoid uninitialized variable referenceArnd Bergmann1-5/+2
The prcmu_config_clkout() function ensures that the 'clkout' argument can only be '0' or '1' using an appropriate BUG_ON(), so the compiler should know that the div_mask, mask, and bits variables are always initialized later on. However, it doesn't understand this in gcc-5.2 and produces a false positive warning instead: drivers/mfd/db8500-prcmu.c: In function 'prcmu_config_clkout': drivers/mfd/db8500-prcmu.c:762:10: error: 'div_mask' may be used uninitialized in this function [-Werror=maybe-uninitialized] if (val & div_mask) { ^ drivers/mfd/db8500-prcmu.c:769:13: error: 'mask' may be used uninitialized in this function [-Werror=maybe-uninitialized] if ((val & mask & ~div_mask) != bits) { ^ drivers/mfd/db8500-prcmu.c:757:7: error: 'bits' may be used uninitialized in this function [-Werror=maybe-uninitialized] Replacing the switch() statement with an equivalent if() lets gcc figure this out reliably and avoids the warnings. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-10thermal: allow u8500-thermal driver to be a moduleArnd Bergmann1-0/+3
When the thermal subsystem is a loadable module, the u8500 driver fails to build: drivers/thermal/built-in.o: In function `db8500_thermal_probe': db8500_thermal.c:(.text+0x96c): undefined reference to `thermal_zone_device_register' drivers/thermal/built-in.o: In function `db8500_thermal_work': db8500_thermal.c:(.text+0xab4): undefined reference to `thermal_zone_device_update' This changes the symbol to a tristate, so Kconfig can track the dependency correctly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-08-11mfd: Kill off set_irq_flags usageRob Herring1-1/+0
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> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-06-22mfd: Constify regmap and irq configuration dataKrzysztof Kozlowski1-1/+1
Constify in various drivers configuration data which is not modified: - regmap_irq_chip, - individual regmap_irq's in array, - regmap_config, - irq_domain_ops, Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: db8500-prcmu: Remove unused functionRickard Strandqvist1-9/+0
Remove the function prcmu_get_boot_status() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-12-15Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core 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 ...
2014-11-25mfd: db8500-prcmu: Provide sane error path valuesLee Jones1-11/+8
Also rid superfluous gotos and label. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-25mfd: db8500-prcmu: Check return of devm_ioremap for errorPramod Gurav1-0/+5
Error check around return value of devm_ioremap is missing. Add the same to avoid NULL pointer dereference. Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-20mfd: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-06-03mfd: db8500-prcmu: Remove check for CONFIG_DBX500_PRCMU_DEBUGPaul Bolle1-3/+0
A check for CONFIG_DBX500_PRCMU_DEBUG was added in v3.6. But there's no Kconfig symbol DBX500_PRCMU_DEBUG. So remove this check. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-03mfd: db8500-prcmu: Make mfd_cell array constKrzysztof Kozlowski1-1/+1
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-04-30mfd: db8500-prcmu: Use cpufreq_for_each_entry macro for iterationStratos Karafotis1-11/+8
The cpufreq core now supports the cpufreq_for_each_entry macro helper for iteration over the cpufreq_frequency_table, so use it. It should have no functional changes. Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-04mfd: dbx500/abx500: root out hardcoded IRQ assignmentsLinus Walleij1-12/+22
The DBx500 and ABx500 should be getting their IRQs from the device tree and nowhere else. Get rid of all the static assignments everywhere, delete it from the driver, platform data and the board files in one swift strike. Lots of cross-dependencies in the MFD drivers for PRCMU and AB8500 makes it necessary to strike everywhere at once to eradicate IRQs passed as resources and platform data to the left and right around the platform. Cc: Mark Brown <broonie@kernel.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-06mfd: Constify struct mfd_cell where possibleGeert Uytterhoeven1-2/+2
As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-09-26mfd: dbx500: Remove any mention of the BML8580CLKLee Jones1-1/+0
The platform which it pertains to is no longer supported and is actually causing some confusion in the new common clock implementation. A recent patch removed its use in the clock driver, let's take out the definitions too. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-08Merge tag 'mfd-3.12-1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next Pull MFD (multi-function device) updates from Samuel Ortiz: "For the 3.12 merge window we have one new driver for the DA9063 PMIC from Dialog Semiconductor. Besides that driver we also have: - Device tree support for the s2mps11 driver - More devm_* conversion for the pm8921, max89xx, menelaus, tps65010, wl1273 and pcf50633-adc drivers. - A conversion to threaded IRQ and IRQ domain for the twl6030 driver. - A fairly big update for the rtsx driver: Better power saving support, better vendor settings handling, and a few fixes. - Support for a couple more boards (COMe-bHL6 and COMe-cTH6) for the Kontron driver. - A conversion to the dev_get_platdata() API for all MFD drivers. - A removal of non-DT (legacy) support for the twl6040 driver. - A few fixes and additions (Mic detect level) to the wm5110 register tables. - Regmap support for the davinci_voicecodec driver. - The usual bunch of minor cleanups and janitorial fixes" * tag 'mfd-3.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (81 commits) mfd: ucb1x00-core: Rewrite ucb1x00_add_dev() mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for event name mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for sysfs mfd: timberdale: Use module_pci_driver mfd: timberdale: Remove redundant break mfd: timberdale: Staticize local variables mfd: ab8500-debugfs: Staticize local variables mfd: db8500-prcmu: Staticize clk_mgt mfd: db8500-prcmu: Use ANSI function declaration mfd: omap-usb-host: Staticize usbhs_driver_name mfd: 88pm805: Fix potential NULL pdata dereference mfd: 88pm800: Fix potential NULL pdata dereference mfd: twl6040: Use regmap for register cache mfd: davinci_voicecodec: Provide a regmap for register I/O mfd: davinci_voicecodec: Remove unused read and write functions mmc: memstick: rtsx: Modify copyright comments mmc: rtsx: Clear SD_CLK toggle enable bit if switching voltage fail mfd: mmc: rtsx: Change default tx phase mfd: pcf50633-adc: Use devm_*() functions mfd: rtsx: Copyright modifications ...
2013-09-02mfd: db8500-prcmu: Staticize clk_mgtSachin Kamat1-1/+1
clk_mgt is used only in this file. Make it static. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-09-02mfd: db8500-prcmu: Use ANSI function declarationSachin Kamat1-1/+1
Silences the following warning: drivers/mfd/db8500-prcmu.c:2322:25: warning: non-ANSI function declaration of function 'prcmu_ac_sleep_req' Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-07-27ARM: ux500: cpuidle: Instantiate the driver from platform deviceLinus Walleij1-0/+4
To break the dependency on the "id.h" file we move the cpuidle driver to a platform device. Now we only call the probe() on this driver if we find a corresponding platform device (which is spawned from the PRCMU MFD driver). Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2013-07-04Merge tag 'pm+acpi-3.11-rc1' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael Wysocki: "This time the total number of ACPI commits is slightly greater than the number of cpufreq commits, but Viresh Kumar (who works on cpufreq) remains the most active patch submitter. To me, the most significant change is the addition of offline/online device operations to the driver core (with the Greg's blessing) and the related modifications of the ACPI core hotplug code. Next are the freezer updates from Colin Cross that should make the freezing of tasks a bit less heavy weight. We also have a couple of regression fixes, a number of fixes for issues that have not been identified as regressions, two new drivers and a bunch of cleanups all over. Highlights: - Hotplug changes to support graceful hot-removal failures. It sometimes is necessary to fail device hot-removal operations gracefully if they cannot be carried out completely. For example, if memory from a memory module being hot-removed has been allocated for the kernel's own use and cannot be moved elsewhere, it's desirable to fail the hot-removal operation in a graceful way rather than to crash the kernel, but currenty a success or a kernel crash are the only possible outcomes of an attempted memory hot-removal. Needless to say, that is not a very attractive alternative and it had to be addressed. However, in order to make it work for memory, I first had to make it work for CPUs and for this purpose I needed to modify the ACPI processor driver. It's been split into two parts, a resident one handling the low-level initialization/cleanup and a modular one playing the actual driver's role (but it binds to the CPU system device objects rather than to the ACPI device objects representing processors). That's been sort of like a live brain surgery on a patient who's riding a bike. So this is a little scary, but since we found and fixed a couple of regressions it caused to happen during the early linux-next testing (a month ago), nobody has complained. As a bonus we remove some duplicated ACPI hotplug code, because the ACPI-based CPU hotplug is now going to use the common ACPI hotplug code. - Lighter weight freezing of tasks. These changes from Colin Cross and Mandeep Singh Baines are targeted at making the freezing of tasks a bit less heavy weight operation. They reduce the number of tasks woken up every time during the freezing, by using the observation that the freezer simply doesn't need to wake up some of them and wait for them all to call refrigerator(). The time needed for the freezer to decide to report a failure is reduced too. Also reintroduced is the check causing a lockdep warining to trigger when try_to_freeze() is called with locks held (which is generally unsafe and shouldn't happen). - cpufreq updates First off, a commit from Srivatsa S Bhat fixes a resume regression introduced during the 3.10 cycle causing some cpufreq sysfs attributes to return wrong values to user space after resume. The fix is kind of fresh, but also it's pretty obvious once Srivatsa has identified the root cause. Second, we have a new freqdomain_cpus sysfs attribute for the acpi-cpufreq driver to provide information previously available via related_cpus. From Lan Tianyu. Finally, we fix a number of issues, mostly related to the CPUFREQ_POSTCHANGE notifier and cpufreq Kconfig options and clean up some code. The majority of changes from Viresh Kumar with bits from Jacob Shin, Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia, Arnd Bergmann, and Tang Yuantian. - ACPICA update A usual bunch of updates from the ACPICA upstream. During the 3.4 cycle we introduced support for ACPI 5 extended sleep registers, but they are only supposed to be used if the HW-reduced mode bit is set in the FADT flags and the code attempted to use them without checking that bit. That caused suspend/resume regressions to happen on some systems. Fix from Lv Zheng causes those registers to be used only if the HW-reduced mode bit is set. Apart from this some other ACPICA bugs are fixed and code cleanups are made by Bob Moore, Tomasz Nowicki, Lv Zheng, Chao Guan, and Zhang Rui. - cpuidle updates New driver for Xilinx Zynq processors is added by Michal Simek. Multidriver support simplification, addition of some missing kerneldoc comments and Kconfig-related fixes come from Daniel Lezcano. - ACPI power management updates Changes to make suspend/resume work correctly in Xen guests from Konrad Rzeszutek Wilk, sparse warning fix from Fengguang Wu and cleanups and fixes of the ACPI device power state selection routine. - ACPI documentation updates Some previously missing pieces of ACPI documentation are added by Lv Zheng and Aaron Lu (hopefully, that will help people to uderstand how the ACPI subsystem works) and one outdated doc is updated by Hanjun Guo. - Assorted ACPI updates We finally nailed down the IA-64 issue that was the reason for reverting commit 9f29ab11ddbf ("ACPI / scan: do not match drivers against objects having scan handlers"), so we can fix it and move the ACPI scan handler check added to the ACPI video driver back to the core. A mechanism for adding CMOS RTC address space handlers is introduced by Lan Tianyu to allow some EC-related breakage to be fixed on some systems. A spec-compliant implementation of acpi_os_get_timer() is added by Mika Westerberg. The evaluation of _STA is added to do_acpi_find_child() to avoid situations in which a pointer to a disabled device object is returned instead of an enabled one with the same _ADR value. From Jeff Wu. Intel BayTrail PCH (Platform Controller Hub) support is added to the ACPI driver for Intel Low-Power Subsystems (LPSS) and that driver is modified to work around a couple of known BIOS issues. Changes from Mika Westerberg and Heikki Krogerus. The EC driver is fixed by Vasiliy Kulikov to use get_user() and put_user() instead of dereferencing user space pointers blindly. Code cleanups are made by Bjorn Helgaas, Nicholas Mazzuca and Toshi Kani. - Assorted power management updates The "runtime idle" helper routine is changed to take the return values of the callbacks executed by it into account and to call rpm_suspend() if they return 0, which allows us to reduce the overall code bloat a bit (by dropping some code that's not necessary any more after that modification). The runtime PM documentation is updated by Alan Stern (to reflect the "runtime idle" behavior change). New trace points for PM QoS are added by Sahara (<keun-o.park@windriver.com>). PM QoS documentation is updated by Lan Tianyu. Code cleanups are made and minor issues are addressed by Bernie Thompson, Bjorn Helgaas, Julius Werner, and Shuah Khan. - devfreq updates New driver for the Exynos5-bus device from Abhilash Kesavan. Minor cleanups, fixes and MAINTAINERS update from MyungJoo Ham, Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and Wei Yongjun. - OMAP power management updates Adaptive Voltage Scaling (AVS) SmartReflex voltage control driver updates from Andrii Tseglytskyi and Nishanth Menon." * tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits) cpufreq: Fix cpufreq regression after suspend/resume ACPI / PM: Fix possible NULL pointer deref in acpi_pm_device_sleep_state() PM / Sleep: Warn about system time after resume with pm_trace cpufreq: don't leave stale policy pointer in cdbs->cur_policy acpi-cpufreq: Add new sysfs attribute freqdomain_cpus cpufreq: make sure frequency transitions are serialized ACPI: implement acpi_os_get_timer() according the spec ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan ACPI: Add CMOS RTC Operation Region handler support ACPI / processor: Drop unused variable from processor_perflib.c cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: s3c64xx: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: omap: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: exynos: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: dbx500: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases ...
2013-06-07mfd: db8500: Update BML clock register for db8580Philippe Begnic1-0/+1
BML clock register address in DB8580 has changed.Defined a new address under different name for DB8580. Signed-off-by: Philippe Begnic <philippe.begnic@st.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-04cpufreq: rename index as driver_data in cpufreq_frequency_tableViresh Kumar1-5/+5
The "index" field of struct cpufreq_frequency_table was never an index and isn't used at all by the cpufreq core. It only is useful for cpufreq drivers for their internal purposes. Many people nowadays blindly set it in ascending order with the assumption that the core will use it, which is a mistake. Rename it to "driver_data" as that's what its purpose is. All of its users are updated accordingly. [rjw: Changelog] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-05-17mfd: db8500-prcmu: Update stored DSI PLL divider valueUlf Hansson1-0/+2
Previously the DSI PLL divider rate was initialised statically and assumed to be 1. Before the common clock framework was enabled for ux500, a call to clk_set_rate() would always update the HW registers no matter what the current setting was. This patch makes sure the actual hw settings and the sw assumed settings are matched. Signed-off-by: Paer-Olof Haakansson <par-olof.hakansson@stericsson.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-05-17mfd: db8500-prcmu: Supply the pdata_size attribute for db8500-thermalLee Jones1-0/+1
The MFD subsystem requires drivers to state the size of any platform data passed, or it will fail to assign it to the device. This will culminate in a NULL platform_data attribute and normally a failure to probe() or a kernel Oops. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-10mfd: db8500-prcmu: Support platform dependant device selectionLee Jones1-8/+24
The main aim for this cycle is to have the u8540 booting to a console. However, the u8540 doesn't support all of the u8500 platform devices yet. After this stage is complete we can then fill in the inadequacies, such as specific clock support at a later date. To achieve this we're placing devices supported by all platforms into a common device structure and the remaining ones into a platform specific one. Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-09mfd: db8500-prcmu: Return early if the TCPM cannot be locatedLee Jones1-19/+21
Currently we check to see if we obtained the Tightly Coupled Program Memory (TCPM) base and only execute the code within the check if we have it. It's more traditional to return early if we don't have it. This way we can flatten most of the function's code down to a single tab spacing. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-08ARM: ux500: split out prcmu initializationArnd Bergmann1-29/+111
This untangles the final bits of the prcmu code from the platform code: * The IRQ_PRCMU_* definitions move from irqs-db8500.h into prcmu.c because they are only of local significance. * u8500_thsens_device goes into the prcmu, because it uses a PRCMU IRQ that the platform does not see. * IRQ_DB8500_AB8500 and IRQ_PRCMU_BASE go into the platform data because the PRCMU does not see it. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> [Fixed a oneliner bug] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08mfd: db8500-prcmu: drop unused includesLinus Walleij1-2/+0
These two <mach/*> includes are no longer used in the PRCMU driver, so drop them. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08ARM: ux500: move PM-related PRCMU functions to machineLinus Walleij1-114/+0
We are trying to decompose and decentralize the code in the DB8500 PRCMU out into subdrivers. The code moved in this patch concerns a group of functions used for decoupling and recoupling the IRQs from the GIC. During sleep and idle the Ux500 system will transfer all IRQ handling to the PRCMU using these functions. Basically we are left with the two alternatives of code placement as: - arch/arm/mach-ux500/pm.c - this because the code is closely related to the GIC, and takes ownership of some of the registers from the PRCMU related to this PM functionality. - drivers/mfd/db8500-prcmu-pm.c - because the code is affecting stuff in the PRCMU register range. But then this code needs to remap and handle GIC registers. This patch implementation is taking the first approach. Currently the cpuidle driver is the only piece of code using this set of functions, but it will later also be used by the suspend/resume code which is currently under review. The header file is moved to: <linux/platform_data/arm-ux500-pm.h> The function prototypes need to be placed in a globally visible header since the CPUidle code is planned to move out to drivers/cpuidle. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Rickard Andersson <rickard.andersson@stericsson.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08mfd: db8500-prcmu: get base address from resourceLinus Walleij1-18/+29
We cannot use a global variable stored in <mach/hardware.h> to find the base address of the PRCMU. The real resource is already there from the board, so use this to look up the base address instead. Currently the patch is kept minimal so as not to interfere with other work being done on refactoring this driver, but at a later point the defines using (prcmu_base + 0xnnn) need to be replaced by pure offset defined for (0xnnn) and the base inlined with the readl()/writel() and similar codepaths. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-08mfd: prcmu: pass a base and size with the early initcallLinus Walleij1-1/+12
This patch will make an early remapping of the PRCMU, to be used when setting up the clocks, that will call down into parts of the PRCMU driver before it is probed. Going forward this will be removed like this: - The mailbox subsystem need to be merged. http://marc.info/?l=linux-kernel&m=136314559201983&w=2 - At this point the PRCMU clock code can be moved over to the ux500 clock driver in drivers/clk/ux500/* and maintained there in a decentralized manner. - This early initcall and PRCMU base parameters become part of the ux500_clk_init() call instead. Cc: Suman Anna <s-anna@ti.com> Cc: Loic Pallardy <loic.pallardy@st.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-02-25Merge tag 'mfd-3.9-1' of ↵Linus Torvalds1-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS updates from Samuel Ortiz: "This is the MFD pull request for the 3.9 merge window. No new drivers this time, but a bunch of fairly big cleanups: - Roger Quadros worked on a OMAP USBHS and TLL platform data consolidation, OMAP5 support and clock management code cleanup. - The first step of a major sync for the ab8500 driver from Lee Jones. In particular, the debugfs and the sysct interfaces got extended and improved. - Peter Ujfalusi sent a nice patchset for cleaning and fixing the twl-core driver, with a much needed module id lookup code improvement. - The regular wm5102 and arizona cleanups and fixes from Mark Brown. - Laxman Dewangan extended the palmas APIs in order to implement the palmas GPIO and rt drivers. - Laxman also added DT support for the tps65090 driver. - The Intel SCH and ICH drivers got a couple fixes from Aaron Sierra and Darren Hart. - Linus Walleij patchset for the ab8500 driver allowed ab8500 and ab9540 based devices to switch to the new abx500 pin-ctrl driver. - The max8925 now has device tree and irqdomain support thanks to Qing Xu. - The recently added rtsx driver got a few cleanups and fixes for a better card detection code path and now also supports the RTS5227 chipset, thanks to Wei Wang and Roger Tseng." * tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (109 commits) mfd: lpc_ich: Use devres API to allocate private data mfd: lpc_ich: Add Device IDs for Intel Wellsburg PCH mfd: lpc_sch: Accomodate partial population of the MFD devices mfd: da9052-i2c: Staticize da9052_i2c_fix() mfd: syscon: Fix sparse warning mfd: twl-core: Fix kernel panic on boot mfd: rtsx: Fix issue that booting OS with SD card inserted mfd: ab8500: Fix compile error mfd: Add missing GENERIC_HARDIRQS dependecies Documentation: Add docs for max8925 dt mfd: max8925: Add dts mfd: max8925: Support dt for backlight mfd: max8925: Fix onkey driver irq base mfd: max8925: Fix mfd device register failure mfd: max8925: Add irqdomain for dt mfd: vexpress: Allow vexpress-sysreg to self-initialise mfd: rtsx: Support RTS5227 mfd: rtsx: Implement driving adjustment to device-dependent callbacks mfd: vexpress: Add pseudo-GPIO based LEDs mfd: ab8500: Rename ab8500 to abx500 for hwmon driver ...
2013-02-22Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-2/+2
Pull ARM SoC driver specific changes from Arnd Bergmann: - Updates to the ux500 cpufreq code - Moving the u300 DMA controller driver to drivers/dma - Moving versatile express drivers out of arch/arm for sharing with arch/arm64 - Device tree bindings for the OMAP General Purpose Memory Controller * tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits) ARM: OMAP2+: gpmc: Add device tree documentation for elm handle ARM: OMAP2+: gpmc: add DT bindings for OneNAND ARM: OMAP2+: gpmc-onenand: drop __init annotation mtd: omap-onenand: pass device_node in platform data ARM: OMAP2+: Prevent potential crash if GPMC probe fails ARM: OMAP2+: gpmc: Remove unneeded of_node_put() arm: Move sp810.h to include/linux/amba/ ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs ARM: OMAP: gpmc-nand: drop __init annotation mtd: omap-nand: pass device_node in platform data ARM: OMAP: gpmc: don't create devices from initcall on DT dma: coh901318: cut down on platform data abstraction dma: coh901318: merge header files dma: coh901318: push definitions into driver dma: coh901318: push header down into the DMA subsystem dma: coh901318: skip hard-coded addresses dma: coh901318: remove hardcoded target addresses dma: coh901318: push platform data into driver dma: coh901318: create a proper platform data file ...
2013-02-14mfd: db8500-prcmu: Add ux500_wdt mfd_cellFabio Baltieri1-0/+12
This patch adds the necessary structures to use the watchdog functionality of PRCMU. The watchdog driver is named ux500_wdt. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: dbx500-prcmu: Export a9wdog functionsFabio Baltieri1-0/+5
Add EXPORT_SYMBOL to db500_prcmu_*_a9wdog functions to allow usage from module. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-13Merge tag 'for-arm-soc-cleanup' of ↵Olof Johansson1-43/+79
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/cleanup From Linus Walleij: Two fixes for broken <mach/id.h> cleanup. * tag 'for-arm-soc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-12mfd: db8500-prcmu: update resource passingLinus Walleij1-43/+79
When trying to get rid of the cross-includes of <mach/id.h> from different drivers, so we can localize ASIC/CPU detection to the mach-ux500 folder, we run into the way the PRCMU handles base addresses and firmware detection. This patch updates the firmware version detection to pass the required information as platform data instead of relying on cpu_is_* macros. Now the PRCMU base address, the secondary TCDM area, the TCPM area and the IRQ are passed as resources instead of being grabbed from <mach/*> files. Incidentally this also removes part of the reliance on <mach/irqs.h>. Further it updates the firmware version detection, since the location of the firmware ID bytes in the designated memory are is now passed from the platform data instead. There is no reason not to include the nice split-off of a struct to hold the firmware information and a separate function to populate it. The patch actually rids the need to use the external db8500_prcmu_early_init call at all, but I'm keepin back that removal as I don't want the patch to be too big. Cc: arm@kernel.org Cc: Michel Jaoen <michel.jaouen@stericsson.com> Cc: Lee Jones <lee.jones@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Loic Pallardy <loic.pallardy@stericsson.com> Acked-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-02-10Merge tag 'v3.8-rc6' into next/cleanupOlof Johansson1-4/+9
Linux 3.8-rc6
2013-01-30Merge tag 'ux500-no-idh' of ↵Olof Johansson1-11/+6
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/cleanup From Linus Walleij: Removal of the <mach/id.h> include from ux500 - First an ACKed MFD patch deleting the only consumer of these cpu_is* functions outside of mach-ux500 - Introduce a new local cpu_is_u8580() in this patch set to avoid clashing with other patch sets. - Finally de-globalize <mach/id.h>. * tag 'ux500-no-idh' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: ARM: ux500: de-globalize <mach/id.h> ARM: ux500: Introduce cpu_is_u8580() mfd: prcmu: delete pin control helpers Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-29ARM: ux500: de-globalize <mach/id.h>Linus Walleij1-11/+6
This removes the file <mach/id.h> from the global kernel include scope, making it a pure mach-ux500 detail. All ASIC specifics needed by drivers shall henceforth be passed from either platform data or the device tree. Cc: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-29Merge branch 'depends/cleanup' into next/driversOlof Johansson1-1/+1
* depends/cleanup: (375 commits) ARM: at91: fix board-rm9200-dt after sys_timer conversion clocksource: use clockevents_config_and_register() where possible ARM: use clockevents_config_and_register() where possible clockevents: export clockevents_config_and_register for module use timer: vt8500: Move timer code to drivers/clocksource irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h ARM: picoxcell: use common irqchip_init function ARM: spear: use common irqchip_init function irqchip: Move ARM VIC to drivers/irqchip ARM: samsung: remove unused tick.h ARM: remove unneeded vic.h includes ARM: remove mach .handle_irq for VIC users ARM: VIC: set handle_arch_irq in VIC initialization ARM: VIC: shrink down vic.h irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h ARM: use common irqchip_init for GIC init irqchip: Move ARM GIC to drivers/irqchip ARM: remove mach .handle_irq for GIC users ARM: GIC: set handle_arch_irq in GIC initialization ARM: GIC: remove direct use of gic_raise_softirq ...
2013-01-22mfd: db8500-prcmu: Fix irqdomain usageLinus Walleij1-4/+9
This fixes two issues with the DB8500 PRCMU irqdomain: - You have to state the irq base 0 to get a linear domain for the DT case from irq_domain_add_simple() - The irqdomain was not used to translate the initial irq request using irq_create_mapping() making the linear case fail as it was lacking a proper descriptor. I took this opportunity to fix two lines of whitespace errors in related code as I was anyway messing around with it. Cc: stable@kernel.org Acked-by Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-12irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.hRob Herring1-1/+1
Now that we have GIC moved to drivers/irqchip and all GIC DT init for platforms using irqchip_init, move gic.h and update the remaining includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Anton Vorontsov <avorontsov@mvista.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Samuel Ortiz <sameo@linux.intel.com>
2013-01-07mfd: db8500: Update cpufreq device nameLee Jones1-2/+2
Since the cpufreq driver for ux500 has been renamed from cpufreq-db8500 to cpufreq-dbx500, we need to change the device name here as well. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-12-17Merge tag 'mfd-3.8-1' of ↵Linus Torvalds1-2/+6
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
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