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rtc: rv3029: update to support DM and sync with Linux 4.17

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The "Flamingo" carrier-board for the RK3399-Q7 has a RV3029 populated
and the application will use the off-module RV3029 RTC including the
battery backed SRAM.

To support this use case, this commit includes the following changes:
 * updates the rv3029 driver to use DM
 * implements the read8/write8 operations

This syncs the implementation with the Linux code (based on 4.17),
porting the trickle-charger support from there (with improvements to
avoid unnecessary EEPROM updates) and adheres to the Linux DTS
binding.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
This commit is contained in:
Philipp Tomsich
2018-11-27 22:53:58 +01:00
parent a3716b5f3f
commit a73610d2c6
2 changed files with 450 additions and 145 deletions
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1
scripts/config_whitelist.txt
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@@ -4054,7 +4054,6 @@ CONFIG_SYS_RTC_CNT
CONFIG_SYS_RTC_OSCILLATOR
CONFIG_SYS_RTC_REG_BASE_ADDR
CONFIG_SYS_RTC_SETUP
CONFIG_SYS_RV3029_TCR
CONFIG_SYS_RX_ETH_BUFFER
CONFIG_SYS_SATA
CONFIG_SYS_SATA1