[radeonsi] dpm: mc_reg_table slots

[Sylvain BERTRAND]

Hi,

In si_populate_smc_acpi_state function, the acpi (emergency) state is a patched
version of the initial state. Then 'ACIndex = 0' for the acpi state (i.e.
setting it to SISLANDS_MCREGISTERTABLE_INITIAL_SLOT) seems misleading, since
ACIndex is already set to 0 (SISLANDS_MCREGISTERTABLE_INITIAL_SLOT) in
si_populate_smc_initial_state. That should be removed to avoid confusion.


Additionnally, that would mean the acpi state is not using its slot in
the mc_reg_table, *BUT* it is used by the ulv state! Indeed ACIndex is set to 1
(SISLANDS_MCREGISTERTABLE_ACPI_SLOT) in si_populate_ulv_state function.

We can see in si_populate_mc_reg_table that initial state, acpi state, ulv
state and driver state have their respective mc_reg_table slot filled.

Then, the previous code seems to make the ulv mc_reg_table slot unused and
useless to fill.

Moreover, is not following the SISLANDS_MCREGISTERTABLE_*_SLOT mc_reg_table
allocation.

Bug?

regards,

-- 
Sylvain