linux/drivers/rtc, branch v3.13

mfd/rtc: s5m: fix register updating by adding regmap for RTC

2013-12-13T02:19:26Z

Rename old regmap field of "struct sec_pmic_dev" to "regmap_pmic" and add new regmap for RTC. On S5M8767A registers were not properly updated and read due to usage of the same regmap as the PMIC. This could be observed in various hangs, e.g. in infinite loop during waiting for UDR field change. On this chip family the RTC has different I2C address than PMIC so additional regmap is needed. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Reviewed-by: Mark Brown Acked-by: Sangbeom Kim Cc: Samuel Ortiz Cc: Lee Jones Cc: Liam Girdwood Cc: Alessandro Zummo Cc: Marek Szyprowski Cc: Geert Uytterhoeven Cc: Kyungmin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: s5m: enable IRQ wake during suspend

2013-12-13T02:19:26Z

Add PM suspend/resume ops to rtc-s5m driver and enable IRQ wake during suspend so the RTC would act like a wake up source. This allows waking up from suspend to RAM on RTC alarm interrupt. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Cc: Mark Brown Acked-by: Sangbeom Kim Cc: Samuel Ortiz Cc: Lee Jones Cc: Liam Girdwood Cc: Alessandro Zummo Cc: Marek Szyprowski Cc: Geert Uytterhoeven Cc: Kyungmin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: s5m: limit endless loop waiting for register update

2013-12-13T02:19:26Z

After setting alarm or time the driver is waiting for UDR register to be cleared indicating that registers data have been transferred. Limit the endless loop to only 5 retries. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Reviewed-by: Mark Brown Acked-by: Sangbeom Kim Cc: Samuel Ortiz Cc: Lee Jones Cc: Liam Girdwood Cc: Alessandro Zummo Cc: Marek Szyprowski Cc: Geert Uytterhoeven Cc: Kyungmin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: s5m: fix unsuccesful IRQ request during probe

2013-12-13T02:19:26Z

Probe failed for rtc-s5m: s5m-rtc s5m-rtc: Failed to request alarm IRQ: 12: -22 s5m-rtc: probe of s5m-rtc failed with error -22 Fix rtc-s5m interrupt request by using regmap_irq_get_virq() for mapping the IRQ. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Reviewed-by: Mark Brown Acked-by: Sangbeom Kim Cc: Samuel Ortiz Cc: Lee Jones Cc: Liam Girdwood Cc: Alessandro Zummo Cc: Marek Szyprowski Cc: Geert Uytterhoeven Cc: Kyungmin Park Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-s5m.c: fix info->rtc assignment

2013-12-13T02:19:26Z

Fix this warning: drivers/rtc/rtc-s5m.c: In function `s5m_rtc_probe': drivers/rtc/rtc-s5m.c:545: warning: assignment from incompatible pointer type struct s5m_rtc_info.rtc has type "struct regmap *", while struct sec_pmic_dev.rtc has type "struct i2c_client *". Probably the author wanted to assign "struct sec_pmic_dev.regmap", which has the correct type. Also, as "rtc" doesn't make much sense as a name for a regmap, rename it to "regmap". Signed-off-by: Geert Uytterhoeven Cc: Sangbeom Kim Cc: Sachin Kamat Tested-by: Krzysztof Kozlowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap

2013-12-13T02:19:26Z

Update month and day of month to the alarm month/day instead of current day/month when setting the RTC alarm mask. Signed-off-by: Linus Pizunski Signed-off-by: Nicolas Ferre Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown

2013-11-22T00:42:27Z

Make sure RTC-interrupts are disabled at shutdown. As the RTC is generally powered by backup power (VDDBU), its interrupts are not disabled on wake-up, user, watchdog or software reset. This could cause troubles on other systems (e.g. older kernels) if an interrupt occurs before a handler has been installed at next boot. Let us be well-behaved and disable them on clean shutdowns at least (as do the RTT-based rtc-at91sam9 driver). Signed-off-by: Johan Hovold Acked-by: Nicolas Ferre Cc: Jean-Christophe Plagniol-Villard Cc: Andrew Victor Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

alpha: Reorganize rtc handling

2013-11-17T00:33:16Z

Discontinue use of GENERIC_CMOS_UPDATE; rely on the RTC subsystem. The marvel platform requires that the rtc only be touched from the boot cpu. This had been partially implemented with hooks for get/set_rtc_time, but read/update_persistent_clock were not handled. Move the hooks from the machine_vec to a special rtc_class_ops struct. We had read_persistent_clock managing the epoch against which the rtc hw is based, but this didn't apply to get_rtc_time or set_rtc_time. This resulted in incorrect values when hwclock(8) gets involved. Allow the epoch to be set from the kernel command-line, overriding the autodetection, which is doomed to fail in 2020. Further, by implementing the rtc ioctl function, we can expose this epoch to userland. Elide the alarm functions that RTC_DRV_CMOS implements. This was highly questionable on Alpha, since the interrupt is used by the system timer. Signed-off-by: Richard Henderson

tree-wide: use reinit_completion instead of INIT_COMPLETION

2013-11-15T00:32:21Z

Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang Acked-by: Linus Walleij (personally at LCE13) Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-hid-sensor-time.c: enable HID input processing early

2013-11-15T00:32:21Z

Enable the processing of HID input records before the RTC will be registered, in order to allow the RTC register function to read clock. Without doing that the clock can only be read after the probe function has finished. Signed-off-by: Alexander Holler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds