wm8580 is using regulators that can't change state. The
regulator driver doesn't handle this case well so it crashes
during regulator_bulk_enable. Eventually this will be fixed in the
regulator driver. For now, remove regulators from list in
wm8580 driver.
Fix spi_rw err. hw_write needs to return transferred data length.
Signed-off-by: Alan Tull <r80115@freescale.com>
Signed-off-by: Wallace Wang <r59996@freescale.com>