kernel/drivers/rtc/rtc-r7301.c, branch linux-4.16.y

rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_set_time

2018-01-11T23:20:34Z

The driver may sleep under a spinlock. The function call path is: rtc7301_set_time (acquire the spinlock) usleep_range --> may sleep To fix it, usleep_range is replaced with udelay. This bug is found by my static analysis tool(DSAC) and checked by my code review. Signed-off-by: Jia-Ju Bai Signed-off-by: Alexandre Belloni

rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_read_time

2018-01-11T23:20:28Z

The driver may sleep under a spinlock. The function call path is: rtc7301_read_time (acquire the spinlock) rtc7301_wait_while_busy usleep_range --> may sleep To fix it, usleep_range is replaced with udelay. This bug is found by my static analysis tool(DSAC) and checked by my code review. Signed-off-by: Jia-Ju Bai Signed-off-by: Alexandre Belloni

rtc: add support for EPSON TOYOCOM RTC-7301SF/DG

2016-12-18T23:59:21Z

This adds support for EPSON TOYOCOM RTC-7301SF/DG which has parallel interface compatible with SRAM. This driver supports basic clock, calendar and alarm functionality. Tested with Microblaze linux running on Artix7 FPGA board with my own custom IP for RTC-7301. Signed-off-by: Akinobu Mita Acked-by: Rob Herring Signed-off-by: Alexandre Belloni