diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2016-02-09 16:12:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-03 15:07:16 -0800 |
| commit | dfca191876436fd33c6ad18258116a2bf5506618 (patch) | |
| tree | 9ec06f8682f9d1798db2e6e81d54b3a10eb60ddf /net/bluetooth/hci_request.c | |
| parent | b7f7a5e2e914e9f5332ea56d10e0db4be3363375 (diff) | |
mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
commit 163cbe31e5163459908a41a2b4e0d33a28fd557a upstream.
Intel BXT/APL use a card detect GPIO however the host controller
will not enable bus power unless it's card detect also reflects
the presence of a card. Unfortunately those 2 things race which
can result in commands not starting, after which the controller
does nothing and there is a 10 second wait for the driver's
10-second timer to timeout.
That is fixed by having the driver look also at the present state
register to determine if the card is present. Consequently, provide
a 'get_cd' mmc host operation for BXT/APL that does that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/bluetooth/hci_request.c')
0 files changed, 0 insertions, 0 deletions