diff options
| author | Sujit Reddy Thumma <sthumma@codeaurora.org> | 2012-02-04 16:14:50 -0500 |
|---|---|---|
| committer | Subhash Jadavani <subhashj@codeaurora.org> | 2016-05-31 15:25:33 -0700 |
| commit | aa9dc5064e95c7f7422144d14c8cfd92bb163b37 (patch) | |
| tree | daaff5c69ad8b6cd6d5624a7a68a702bdc9a4206 /drivers/mmc | |
| parent | 357f7f515e66f86627ad7f3dfd04263ebfb775f9 (diff) | |
mmc: core: sdio: Ensure clocks are always enabled before host interaction
Ensure clocks are always enabled before any interaction with the
host controller driver. This makes sure that there is no race
between host execution and the core layer turning off clocks
in different context with clock gating framework.
Change-Id: Ib47d0641f02c4390d26567102ee178beaf63516c
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
[sboyd: Keep non-upstreamed bits for sdio.c]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 80966a6bf3ae..434d2b7a794f 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -626,8 +626,11 @@ try_again: /* * Call the optional HC's init_card function to handle quirks. */ - if (host->ops->init_card) + if (host->ops->init_card) { + mmc_host_clk_hold(host); host->ops->init_card(host, card); + mmc_host_clk_release(host); + } /* * If the host and card support UHS-I mode request the card |