kernel/drivers/rtc/rtc-m48t86.c, branch linux-5.1.y

rtc: stop validating rtc_time in .read_time

2018-03-02T09:09:58Z

The RTC core is always calling rtc_valid_tm after the read_time callback. It is not necessary to call it just before returning from the callback. Signed-off-by: Alexandre Belloni

rtc: m48t86: put m48t86_nvmem_cfg on the stack

2018-03-01T09:49:19Z

Move m48t86_nvmem_cfg to the stack of m48t86_rtc_probe. This results in a very small code size reduction and make it safer on systems with two similar RTCs: text data bss dec hex filename 1733 164 0 1897 769 drivers/rtc/rtc-m48t86.o.before 1793 100 0 1893 765 drivers/rtc/rtc-m48t86.o.after Signed-off-by: Alexandre Belloni

rtc: m48t86: call rtc_nvmem_register()

2018-03-01T09:49:18Z

Call rtc_nvmem_register instead of letting the core do it and stop using the nvmem_config member of struct rtc_device. Signed-off-by: Alexandre Belloni

rtc: m48t86: use generic nvmem

2017-10-12T22:10:10Z

Instead of adding a binary sysfs attribute from the driver (which suffers from a race condition as the attribute appears after the device), use the core to register an nvmem device. Signed-off-by: Alexandre Belloni

rtc: m48t86: switch to rtc_register_device

2017-10-12T22:10:08Z

This allows for future improvement of the driver. Signed-off-by: Alexandre Belloni

rtc: m48t86: remove unused platform_data

2017-02-21T20:23:13Z

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 Signed-off-by: Alexandre Belloni

rtc: m48t86: verify that the RTC is actually present

2017-02-21T17:16:31Z

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 Signed-off-by: Alexandre Belloni

rtc: m48t86: add NVRAM support

2017-02-12T00:08:01Z

This RTC has 114 bytes of NVRAM. Provide access to it via a binary sysfs 'nvram' attribute file. Signed-off-by: H Hartley Sweeten Signed-off-by: Alexandre Belloni

rtc: m48t86: allow driver to manage its resources

2017-02-12T00:07:38Z

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 Signed-off-by: Alexandre Belloni

rtc: m48t86: shorten register name defines

2017-02-12T00:06:35Z

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 Signed-off-by: Alexandre Belloni