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* Merge tag 'rtc-4.12' of ↵Linus Torvalds2017-05-1023-46/+672
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "RTC subsystem update: - Add OF device ID table for i2c drivers New RTC driver: - Motorola CPCAP PMIC RTC RTC driver updates: - cmos: fix IRQ selection - ds1307: Add ST m41t0 support - ds1374: fix watchdog configuration - sh: Add rza series support" * tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits) rtc: gemini: add return value validation rtc: snvs: fix an incorrect check of return value rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks rtc: sh: mark PM functions as unused rtc: hid-sensor-time: remove some dead code rtc: m41t80: Add proper compatible for rv4162 rtc: ds1307: Add m41t0 to OF device ID table rtc: ds1307: support m41t0 variant rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irq rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs x86: i8259: export legacy_pic symbol dt-bindings: rtc: document the rtc-sh bindings rtc: sh: add support for rza series rtc: cpcap: kfreeing devm allocated memory rtc: wm8350: Remove unused to_wm8350_from_rtc_dev rtc: cpcap: new rtc driver dt-bindings: Add vendor prefix for Motorola rtc: omap: mark PM methods as __maybe_unused rtc: omap: remove incorrect __exit markups ...
| * rtc: gemini: add return value validationPan Bian2017-05-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Function devm_ioremap() will return a NULL pointer if it fails to remap IO address, and its return value should be validated before it is used. However, in function gemini_rtc_probe(), its return value is not checked. This may result in bad memory access bugs on future access, e.g. calling the function gemini_rtc_read_time(). Signed-off-by: Pan Bian <bianpan2016@163.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: snvs: fix an incorrect check of return valuePan Bian2017-05-051-1/+1
| | | | | | | | | | | | | | | | | | Function devm_regmap_init_mmio() returns an ERR_PTR on error. However, in function snvs_rtc_probe() its return value is checked against NULL. This patch fixes it by checking the return value with IS_ERR(). Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVALMoritz Fischer2017-05-041-1/+2
| | | | | | | | | | | | | | | | | | | | The WDIOC_SETOPTIONS case in the watchdog ioctl would alwayss falls through to the -EINVAL case. This is wrong since thew watchdog does actually get stopped or started correctly. Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support") Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticksMoritz Fischer2017-05-041-1/+6
| | | | | | | | | | | | | | | | | | | | | | The issue is that the internal counter that triggers the watchdog reset is actually running at 4096 Hz instead of 1Hz, therefore the value given by userland (in sec) needs to be multiplied by 4096 to get the correct behavior. Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support") Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: sh: mark PM functions as unusedArnd Bergmann2017-04-221-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sh_rtc_set_irq_wake() function is only called from the suspend/resume handlers that may be hidden, causing a harmless warning: drivers/rtc/rtc-sh.c:724:13: error: 'sh_rtc_set_irq_wake' defined but not used [-Werror=unused-function] static void sh_rtc_set_irq_wake(struct device *dev, int enabled) The most reliable way to avoid the warning is to remove the existing #ifdef and mark the two functions as __maybe_unused so the compiler can silently drop all three when there is no reference. Fixes: dab5aec64bf5 ("rtc: sh: add support for rza series") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: hid-sensor-time: remove some dead codeDan Carpenter2017-04-221-2/+2
| | | | | | | | | | | | | | | | devm_rtc_device_register() doesn't ever return NULL so there is no need to check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m41t80: Add proper compatible for rv4162Alexandre Belloni2017-04-191-0/+5
| | | | | | | | | | | | | | The correct compatible for the rv4162 (microcrystal,rv4162) was not used upstream and so was not added by eb235c561d04e. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1307: Add m41t0 to OF device ID tableAlexandre Belloni2017-04-141-0/+4
| | | | | | | | | | | | m41t0 was added to the I2C device ID table but not the OF table. Fix that. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1307: support m41t0 variantStefan Agner2017-04-141-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The m41t0 variant is very similar to the already supported m41t00 variant, with the notable exception of the oscillator fail bit. The data sheet notes: If the oscillator fail (OF) bit is internally set to a '1,' this indicates that the oscillator has either stopped, or was stopped for some period of time and can be used to judge the validity of the clock and date data. The bit will get cleared with a regular write of the system time, so no changes are needed to clear it. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irqTony Lindgren2017-04-141-2/+2
| | | | | | | | | | | | | | | | | | | | There's a funny typo where IRQ_NONE is used instead of IRQF_TRIGGER_NONE for request_threaded_irq(). Let's fix it before it gets copied elsewhere. Fixes: dd3bf50b35e3 ("rtc: cpcap: new rtc driver") Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqsHans de Goede2017-04-141-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some systems (e.g. Intel Bay Trail systems) the legacy PIC is not used, in this case virq 8 will be a random irq, rather then hw_irq 8 from the PIC. Requesting virq 8 in this case will not help us to get alarm irqs and may cause problems for other drivers which actually do need virq 8, for example on an Asus Transformer T100TA this leads to: [ 28.745155] genirq: Flags mismatch irq 8. 00000088 (mmc0) vs. 00000080 (rtc0) <snip oops> [ 28.753700] mmc0: Failed to request IRQ 8: -16 [ 28.975934] sdhci-acpi: probe of 80860F14:01 failed with error -16 This commit fixes this by making the rtc-cmos driver continue without using an irq rather then claiming irq 8 when no irq is specified in the pnp-info and there are no legacy-irqs. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: sh: add support for rza seriesChris Brandt2017-04-032-7/+30
| | | | | | | | | | | | | | | | | | | | This same RTC is used in RZ/A series MPUs, therefore with some slight changes, this driver can be reused. Additionally, since ARM architectures require Device Tree configurations, device tree support has been added. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: cpcap: kfreeing devm allocated memoryDan Carpenter2017-03-161-3/+1
| | | | | | | | | | | | | | | | | | | | We shouldn't kfree(rtc) because is devm_ managed memory. It leads to a double free. Fixes: dd3bf50b35e3 ("rtc: cpcap: new rtc driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: wm8350: Remove unused to_wm8350_from_rtc_devNobuhiro Iwamatsu2017-03-161-2/+0
| | | | | | | | | | | | | | | | | | The to_wm8350_from_rtc_dev macro is not used by anything in the rtc-wm8350 driver. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: cpcap: new rtc driverSebastian Reichel2017-03-093-0/+340
| | | | | | | | | | | | | | | | | | | | This driver supports the Motorola CPCAP PMIC found on some of Motorola's mobile phones, such as the Droid 4. Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: omap: mark PM methods as __maybe_unusedDmitry Torokhov2017-03-091-14/+4
| | | | | | | | | | | | | | | | | | | | Instead of using #ifdef guards around PM methods, let's annotate them as __maybe_unused, as it provides better compile coverage. Also drop empty stub for omap_rtc_runtime_resume(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: omap: remove incorrect __exit markupsDmitry Torokhov2017-03-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Even if bus is not hot-pluggable, devices can be unbound from the driver via sysfs, so we should not be using __exit annotations on remove() methods. The only exception is drivers registered with platform_driver_probe(), which specifically disables sysfs bind/unbind attributes. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rs5c372: Add OF device ID tableJavier Martinez Canillas2017-03-091-1/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m41t80: Add OF device ID tableJavier Martinez Canillas2017-03-091-2/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rx8581: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: s35390a: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: isl1208: Add OF device ID tableJavier Martinez Canillas2017-03-091-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1374: Set .of_match_table to OF device ID tableJavier Martinez Canillas2017-03-091-0/+1
| | | | | | | | | | | | | | | | The driver has a OF device ID table but the struct i2c_driver .of_match_table field is not set. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rtc-ds1672: Add OF device ID tableJavier Martinez Canillas2017-03-091-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds3232: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rx8010: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds1307: Add OF device ID tableJavier Martinez Canillas2017-03-091-1/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: bq32k: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rv3029: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: rv8803: Add OF device ID tableJavier Martinez Canillas2017-03-091-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
* | rtc: utilize new cdev_device_add helper functionLogan Gunthorpe2017-03-213-31/+10
|/ | | | | | | | | | | | | | | | | | | Mostly straightforward, but we had to remove the rtc_dev_add/del_device functions as they split up the cdev_add and the device_add. Doing this also revealed that there was likely another subtle bug: seeing cdev_add was done after device_register, the cdev probably was not ready before device_add when the uevent occurs. This would race with userspace, if it tried to use the device directly after the uevent. This is fixed just by using the new helper function. Another weird thing is this driver would, in some error cases, call cdev_add() without calling cdev_init. This patchset corrects this by avoiding calling cdev_add if the devt is not set. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar2017-03-021-1/+1
| | | | | | | | | | | | | <linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge tag 'rtc-4.11' of ↵Linus Torvalds2017-02-2722-252/+1855
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Subsystem: - constify rtc_class_ops structures New driver: - STM32 Drivers: - armada38x: fix errata, Armada 7K/8K support - ds3232: fix wakeup support - gemini: DT support - m48t86: huge cleanup and platform_data removal - mcp795: alarm support - sun6i: proper oscillator handling - tegra: proper clock handling - tps65910: calibration support" * tag 'rtc-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (44 commits) rtc: ds3232: Call device_init_wakeup before device_register rtc: pcf2127: bulk read only date and time registers. rtc: armada38x: Add support for Armada 7K/8K rtc: armada38x: Prepare driver to manage different versions rtc: ds3232: Add regmap max_register definition. rtc: ds3232: Cleanup whitespace around register and bit definitions. rtc: m48t86: remove unused platform_data ARM: Orion5x: ts78xx: allow rtc-m48t86 to manage it's own resources ARM: Orion5x: ts78xx: remove RTC detection ARM: ep93xx: ts72xx: allow rtc-m48t86 to manage its own resources rtc: m48t86: verify that the RTC is actually present rtc: m48t86: add NVRAM support rtc: m48t86: allow driver to manage its resources rtc: m48t86: shorten register name defines bindings: rtc: correct wrong reference in required properties rtc: sun6i: Fix return value check in sun6i_rtc_clk_init() rtc: sun6i: extend test coverage rtc: sun6i: Fix compatibility with old DT binding rtc: snvs: add a missing write sync rtc: bq32000: add support to enable disable the trickle charge FET bypass ...
| * rtc: ds3232: Call device_init_wakeup before device_registerPhil Reid2017-02-241-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The wakealarm attribute is currently not exposed in the sysfs interface as the device has not been set as doing wakealarm when device_register is called. Changing the order of the calls fixes that problem. Interrupts are cleared in check_rtc_status prior to requesting the interrupt. This is only set if an irq is defined. If irq registration fails then set wakeup_capable to false. With this change the sysfs wakealarm attribute will be left visible but it is non functional. rtcwake still returns that the device is not enabled for wakeup. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: pcf2127: bulk read only date and time registers.Sean Nyekjaer2017-02-231-2/+13
| | | | | | | | | | | | | | | | Read control registers one by one and bulk read time registers. This fixes when the clock is read, the watchdog counter register is zeroed. Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: armada38x: Add support for Armada 7K/8KGregory CLEMENT2017-02-211-0/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada 7K/8K use the same RTC IP than the Armada 38x. However the SOC integration differs in 2 points: - MBUS bridge timing initialization - IRQ configuration at SoC level Moreover the Armada 7K/8K have an issue preventing to get the interrupt from alarm 1. This commit allows to use alarm 2 for these A7K/8K but to still use alarm 1 for the Armada 38x. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: armada38x: Prepare driver to manage different versionsGregory CLEMENT2017-02-211-53/+99
| | | | | | | | | | | | | | | | | | | | | | | | In order to prepare the introduction of the A7K/A8K version of the RTC, this commit introduces a new data structure. This structure allows to handle the differences between the integration of the RTC IP in the SoCs. It will be: - MBUS bridge timing initialization - IRQ configuration at SoC level Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds3232: Add regmap max_register definition.Phil Reid2017-02-211-0/+2
| | | | | | | | | | | | | | | | Add the max_register to the regmap_config definition. This allows dumping of the device's registers via the regmap debugfs interface. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: ds3232: Cleanup whitespace around register and bit definitions.Phil Reid2017-02-211-22/+22
| | | | | | | | | | | | | | | | Whitespace was a combination of spaces and tabs. Use spaces and align register / bit definitions. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m48t86: remove unused platform_dataH Hartley Sweeten2017-02-211-32/+19
| | | | | | | | | | | | | | | | | | | | | | All users of this driver have been updated to allow the driver to manage it's own resources and do the read/write operations internally. The m48t86_ops are no longer used. Remove the platform_data header and the support code in the driver. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m48t86: verify that the RTC is actually presentH Hartley Sweeten2017-02-211-0/+36
| | | | | | | | | | | | | | | | | | The RTC is an optional feature at purchase time on some Technologic Systems boards. Verify that it actually exists by checking if the last two bytes of the NVRAM can be changed. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m48t86: add NVRAM supportH Hartley Sweeten2017-02-121-0/+41
| | | | | | | | | | | | | | | | This RTC has 114 bytes of NVRAM. Provide access to it via a binary sysfs 'nvram' attribute file. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m48t86: allow driver to manage its resourcesH Hartley Sweeten2017-02-121-51/+102
| | | | | | | | | | | | | | | | Allow this driver to, optionally, manage it's own resources and do the read/write operations if the platform does not provide them. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: m48t86: shorten register name definesH Hartley Sweeten2017-02-121-64/+63
| | | | | | | | | | | | | | | | | | For aesthetics. Shorten all the register names by removing '_REG' from all of them. This helps fix all the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: sun6i: Fix return value check in sun6i_rtc_clk_init()Wei Yongjun2017-02-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | In case of error, the function of_io_request_and_map() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: sun6i: extend test coverageAlexandre Belloni2017-02-011-2/+3
| | | | | | | | | | | | | | | | COMPILE_TEST was wrongly placed, move it to the "depends on" line. Also depend on COMMON_CLK as the driver now needs it to be properly compiled. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: sun6i: Fix compatibility with old DT bindingChen-Yu Tsai2017-02-011-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator") adds a new clock for the rtc block with a 2 step probe mechanism. To share the register region between both the clock and rtc instance, a static pointer is used to keep the related data structure. To preserve compatibility with the old binding, the data structure should be saved as soon as the registers are mapped in, regardless of the presence of the clock bindings, so that the rtc device can retrieve it when it is probed. This fixes the rtc device not probing when we use the updated driver with an old device tree blob. Fixes: 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: snvs: add a missing write syncGuy Shapiro2017-02-011-0/+1
| | | | | | | | | | | | | | | | | | The clear of the LPTA_EN flag should be synced before writing to the alarm register. Omitting this synchronization creates a race when trying to change existing alarm. Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * rtc: bq32000: add support to enable disable the trickle charge FET bypassEnric Balletbo i Serra2017-02-011-0/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bq32000 includes a trickle charge circuit to maintain the charge of the backup supply when a super capacitor is used. You can enable the charging circuit by setting 'trickle-resistor-ohms', additionally you can set TCFE to 1 to bypass the internal diode and boost the charge voltage of the backup supply. You might want to enable/disable the TCFE switch from userspace (e.g when device is only connected to a battery) This patch introduces a new sysfs entry to enable and disable this FET form userspace. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-05 01:41:49 +0000