mmc: core: Bus width testing needs to handle suspend/resume
On reading the ext_csd for the first time (in 1 bit mode), save the ext_csd information needed for bus width compare. On every pass we make re-reading the ext_csd, compare the data against the saved ext_csd data. This fixes a regression introduced in 3.0-rc1 by 08ee80cc ("mmc: core: eMMC bus width may not work on all platforms"), which incorrectly assumed we would be re-reading the ext_csd at resume- time. Signed-off-by: NPhilip Rakity <prakity@marvell.com> Tested-by: NJaehoon Chung <jh80.chung@samsung.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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