and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.
Host Control Register (Offset 028h), the "Data Transfer Width" bit is in Host
Control Register (Offset 028h), not Power Control Register (Offset 029h).
sdhc_bus_clock() calls mutex_enter().
then in DIAGNOSTIC section, sdhc_bus_clock() calls sdhc_card_detect().
sdhc_card_detect() calls mutex_enter() on the same mutex again.
when LOCKDEBUG is enabled, you get
Mutex error: lockdebug_wantlock: locking against myself
