linux.git/drivers/rtc, branch v4.20-rc2

rtc: sc27xx: Always read normal alarm when registering RTC device

2018-10-25T00:35:42+00:00

When registering one RTC device, it will check to see if there is an
alarm already set in RTC hardware by reading RTC alarm, at this time
we should always read the normal alarm put in always-on region by
checking the rtc->registered flag.

Signed-off-by: Baolin Wang 
Signed-off-by: Alexandre Belloni

rtc: sc27xx: Add check to see if need to enable the alarm interrupt

2018-10-25T00:35:40+00:00

The RTC interrupt enable register is not put in always-power-on region
supplied by VDDRTC, so we should check if we need enable the alarm
interrupt when system booting.

Signed-off-by: Baolin Wang 
Signed-off-by: Alexandre Belloni

rtc: sc27xx: Remove interrupts disable and clear in probe()

2018-10-25T00:35:39+00:00

When registering one rtc device, it will check to see if there is an
alarm already set in rtc hardware by issuing __rtc_read_alarm(). So
we should not disable the RTC interrupts and clear the interrupts
status in probe() function.

Signed-off-by: Baolin Wang 
Signed-off-by: Alexandre Belloni

rtc: sc27xx: Clear SPG value update interrupt status

2018-10-25T00:35:38+00:00

We should clear the SPG value update interrupt status once the SPG value
is updated successfully, in case incorrect status validation for next time.

Signed-off-by: Baolin Wang 
Signed-off-by: Alexandre Belloni

rtc: sc27xx: Set wakeup capability before registering rtc device

2018-10-25T00:35:36+00:00

Set wakeup capability before registering rtc device, in case the alarmtimer
can find one available rtc device.

Signed-off-by: Baolin Wang 
Signed-off-by: Alexandre Belloni

rtc: s35390a: Change buf's type to u8 in s35390a_init

2018-10-22T17:29:43+00:00

Clang warns:

drivers/rtc/rtc-s35390a.c:124:27: warning: implicit conversion from
'int' to 'char' changes value from 192 to -64 [-Wconstant-conversion]
        buf = S35390A_FLAG_RESET | S35390A_FLAG_24H;
            ~ ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
1 warning generated.

Update buf to be an unsigned 8-bit integer, which matches the buf member
in struct i2c_msg.

https://github.com/ClangBuiltLinux/linux/issues/145
Signed-off-by: Nathan Chancellor 
Signed-off-by: Alexandre Belloni

rtc: ds1307: fix ds1339 wakealarm support

2018-10-22T15:53:14+00:00

Commit 51ed73eb998a1c79a2b0e9bed68f75a8a2c93b9b ("rtc: ds1340: Add support
for trickle charger.") breaks ds1339 wakealarm support by limiting
accessible registers. Fix this.

Fixes: 51ed73eb998a ("rtc: ds1340: Add support for trickle charger.")
Cc: stable@vger.kernel.org
Signed-off-by: Soeren Moch 
Signed-off-by: Alexandre Belloni

rtc: ds1685: simplify getting .driver_data

2018-10-22T15:53:12+00:00

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang 
Signed-off-by: Alexandre Belloni

rtc: m41t80: mark expected switch fall-through

2018-10-16T10:56:58+00:00

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in this particular case, I replaced "Fall" with a proper
"Fall through" comment.

Addresses-Coverity-ID: 1373875 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: Alexandre Belloni

rtc: tegra: Propagate errors from platform_get_irq()

2018-10-16T10:56:56+00:00

Instead of confusingly returning -EBUSY on failure to obtain an
interrupt, propagate the real error code. While at it, let the user know
why the interrupt could not be acquired.

Signed-off-by: Thierry Reding 
Signed-off-by: Alexandre Belloni