diff options
| author | Samuel Holland <[email protected]> | 2022-11-13 19:57:48 -0600 |
|---|---|---|
| committer | Jernej Skrabec <[email protected]> | 2022-11-16 19:28:48 +0100 |
| commit | 077686da0e2162c4ea5ae0df205849c2a7a84479 (patch) | |
| tree | a3524681fa046f06f413fbe46f721fdc83d56ed2 /lib/mpi/mpi-mod.c | |
| parent | 5f4696ddca4b8a0bbbc36bd46829f97aab5a4552 (diff) | |
bus: sunxi-rsb: Support atomic transfers
When communicating with a PMIC during system poweroff (pm_power_off()),
IRQs are disabled and we are in a RCU read-side critical section, so we
cannot use wait_for_completion_io_timeout(). Instead, poll the status
register for transfer completion.
Fixes: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus")
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Jernej Skrabec <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jernej Skrabec <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions