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2019-04-04rtc: don't reference bogus function pointer in kdocWolfram Sang
The mentioned function pointer is long gone since early 2011. Remove the reference in the comment and reword it slightly. Fixes: 51ba60c5bb3b ("RTC: Cleanup rtc_class_ops->update_irq_enable()") Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: remove unnecessary Kconfig dependenciesAlexandre Belloni
Remove the unused "depends on I2C" as the config options are already guarded by if I2C. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: add RTC_VL_READ/RTC_VL_CLR supportAlexandre Belloni
Allow reading the oscillator status bit. Also allow clearing it even if that makes little sense and can't be done in a race free way. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: add offset correction supportAlexandre Belloni
The PCF850363 has an offset correction with two modes: With mode 0, the correction is triggered once every two hours and then correction pulses are applied once per minute until the programmed correction values have been implemented. This gives a step of 4.34 ppm. With mode 1, the correction is triggered once every four minutes and then correction pulses are applied once per second up to a maximum of 60 pulses. When correction values greater than 60 pulses are used, additional correction pulses are made in the 59 th second. This gives a step of 4.069 ppm. Use the correction closest to the requested value. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: add nvram supportAlexandre Belloni
The pcf85063 has one byte of nvram. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: add Micro Crystal RV8263 supportAlexandre Belloni
The Micro Crystal RV8263 has the same IC as the pcf85063 but has an on board crystal. This means that the CAP_SEL bit has to be cleared so the correct capacitance is selected for the crystal. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: add alarm supportAlexandre Belloni
Add support for the alarms. The match on the weekday is not used as it it not necessarily properly set. The tested RTC shows a behaviour where setting an alarm on the second right after an alarm that fired is not working, probably because of the circuit that ensures an alarm only fires once. This is why uie_unsupported is set. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: differentiate pcf85063a and pcf85063tpAlexandre Belloni
As stated in a comment pcf85063a and pcf85063tp don't have the same number of registers. Especially, pcf85063tp doesn't have alarm support. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: switch to regmapAlexandre Belloni
Switch to regmap to simplify register accesses and remove the need for pcf85063_stop_clock/pcf85063_start_clock. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: set rangeAlexandre Belloni
This is a standard BCD RTC that will fail in 2100. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: remove bogus i2c functionality checkAlexandre Belloni
Only smbus reads and write are done in the driver, plain i2c functionality is not required. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: pcf85063: switch to probe_newAlexandre Belloni
struct i2c_device_id argument of probe() is not used, so use probe_new() instead. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: snvs: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: mxc: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: snvs: use dev_pm_set_wake_irq() to simplify codeAnson Huang
With calling dev_pm_set_wake_irq() to set SNVS RTC as wakeup source for suspend, generic wake irq mechanism will automatically enable it as wakeup source when suspend, then the suspend/resume callback which are ONLY for enabling/disabling irq wake can be removed, it simplifies the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: Add ASPEED RTC driverJoel Stanley
Read and writes the time to the non-battery backed RTC in the ASPEED BMC system on chip families. Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: brcmstb-waketimer: switch to rtc_time64_to_tmAlexandre Belloni
Call the 64bit version of rtc_time_to_tm as the range is enforced by the core. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: mt6397: Don't call irq_dispose_mapping.Pi-Hsun Shih
The IRQ mapping was changed to not being created in the rtc-mt6397 driver, so the irq_dispose_mapping is no longer needed. Also the dev_id passed to free_irq should be the same as the last argument passed to request_threaded_irq. This prevents a "Trying to free already-free IRQ 274" warning when unbinding the driver. Fixes: e695d3a0b3b3 ("mfd: mt6397: Create irq mappings in mfd core driver") Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: opal: Make opal_tpo_alarm_irq_enable staticYueHaibing
Fix sparse warning: drivers/rtc/rtc-opal.c:227:5: warning: symbol 'opal_tpo_alarm_irq_enable' was not declared. Should it be static? Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: wm831x: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text. Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: wm831x: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion now that the range is enforced by the core. Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: wm831x: remove unnecessary gotoAlexandre Belloni
There is no specific handling in the error path of wm831x_rtc_probe, remove the unnecessary goto and label. Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: wm831x: set rangeAlexandre Belloni
The wm831x has a 32bit second counter. Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: da9063: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion now that the range is enforced by the core. Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: da9063: set rangeAlexandre Belloni
The DA9062 and DA9063 have a year register that can go up to 0x3F. Acked-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sun4v: switch to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier to be clearer on the license. Choose the v2 only as this is the default Linux license. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sun4v: set rangeAlexandre Belloni
The Sun4v Hypervisor Core API Specification states: Time is described by a single unsigned 64-bit word equivalent to a time_t for the POSIX time(2) system call. The word contains the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sun4v: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion as the hypervisor handles 64bit values. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: omap: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: omap: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_time_to_tm now that the range is enforced by the core. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: ps3: set rangeAlexandre Belloni
The PS3 has a 64bit second counter from 2000. While this exceeds the 64bit UNIX timestamp, there is not doubt that non of them will still be working by then. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: ps3: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: ps3: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: ps3: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion as the PS3 handles 64bit values. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: correct trivial checkpatch warningsAlexandre Belloni
Correct trivial checkpatch warnings, mostly whitespace issues and unbalanced braces. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion as the range is enforced by the core. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: set rangeAlexandre Belloni
The AT91 RTT is a 32bit second counter that is saved in a 32bit global purpose register. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: at91sam9: drop platform_data supportAlexandre Belloni
ARCH_AT91 is DT only for a while, drop platform data support. Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sh: set rangeAlexandre Belloni
The SH RTC is a BCD RTC with some version having 4 digits for the year. The range for the RTCs with only 2 digits for the year was unfortunately shifted to handle 1999 to 2098. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sh: fix possible race conditionAlexandre Belloni
The IRQ is requested before the struct rtc is allocated and registered, but this struct is used in the IRQ handler. This may lead to a NULL pointer dereference. Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc struct before requesting the IRQ. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: sh: stop resetting time to epochAlexandre Belloni
There is no point in resetting the time to epoch as this means that userspace will never get the valuable information that time is actually invalid. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> [Anders Roxell <anders.roxell@linaro.org>: remove unused variable r] Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: dm355evm: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: dm355evm: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion as the range is enforced by the core. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: dm355evm: set rangeAlexandre Belloni
The MSP430 has a 32bit second counter. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: dm355evm: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-04-04rtc: goldfish: convert to SPDX identifierAlexandre Belloni
Use SPDX-License-Identifier instead of a verbose license text Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>