PXA3xx NAND driver trouble with 'conservative' CPU govenor

[Daniel Mack]

With the cpu govenor set to 'conservative', the PXA3xx NAND driver fails
the tests from drivers/mtd/tests:

sh-3.2# modprobe mtd_torturetest dev=3
[  386.367730]
[  386.369296] =================================================
[  386.375258] mtd_torturetest: Warning: this program is trying to wear out your flash, stop it if this is not wanted.
[  386.385811] mtd_torturetest: MTD device: 3
[  386.390021] mtd_torturetest: torture 32 eraseblocks (8-39) of mtd3
[  386.396238] mtd_torturetest: write verify enabled
[  388.675993] double bit error @ page 00000b79
[  388.680406] timed out writing command
[  388.687925] mtd_torturetest: error -74 while reading EB 36, read 131072
[  388.694536] mtd_torturetest: verify failed for 0xFF... pattern
[  388.700364] mtd_torturetest: finished after 0 erase cycles
[  388.705885] mtd_torturetest: error -74 occurred during torturing
[  388.711908] =================================================
modprobe: Failed to load module mtd_torturetest: Bad message.

When setting the govenor to 'performance', the test passes. Has anyone
seen similar issues? Any idea, anyone?

Daniel