Hi, Nikola Milosavljević reported that rebooting wasn't working properly on Asus Transformer TF101, which is Tegra20-based tablet device. We found that TF101 and some other devices have bootloader which doesn't re-initialize voltages properly on a reboot. The problem is resolved by ensuring that SoC voltages are at a levels that are suitable for the rebooting of the SoC before reboot happens. This series adds reboot handler to the Tegra regulator couplers, it bumps voltages on the reboot event. Dmitry Osipenko (2): regulator: core: Add regulator_sync_voltage_rdev() soc/tegra: regulators: Bump voltages on system reboot drivers/regulator/core.c | 23 ++++++++ drivers/soc/tegra/regulators-tegra20.c | 77 ++++++++++++++++++++++++- drivers/soc/tegra/regulators-tegra30.c | 80 +++++++++++++++++++++++++- include/linux/regulator/driver.h | 1 + 4 files changed, 177 insertions(+), 4 deletions(-) -- 2.30.2
