tree b083135f5ed9e3eb7195db853888c662e74f4d28
parent dd7dfa217e799007f11f4649396d86ad8a40f95b
author Jagan Teki <jagan@amarulasolutions.com> 1563215319 +0530
committer Kever Yang <kever.yang@rock-chips.com> 1563505869 +0800

ram: rk3399: Handle data training return types

data trainings calls like ca, wl, rg, rl, wdql have proper
return types with -EIO and the return type missed to handle
in data_training function.

This patch, add proper return type checks along with useful
debug statement on each data training calls.

Incidentally this would help to prevent the sdram initialization
hang for single channel dram and when the code is trying to
initialize second channel with proper return type of relevant
data training call might failed.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>