mmc: core: add clock-scaling support to HS400 cards
This patch adds clock scaling support to HS400 cards.
Scaling down to 52MHz from HS400 involves:
- switching the bus-speed mode to HS at 52MHz
Scaling up to HS400 would require all of the initialization
process upto HS400 mode selection.
Change-Id: I8196d6666bcc0ef327659253df53a17792fa51f7
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Krishna Konda <kkonda@codeaurora.org>
[venkatg@codeaurora.org: fix mmc_select_hs args and MAX_DTRs
as used in 3.14 kernel]
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
[subhashj@codeaurora.org: fixed merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
3 files changed