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| author | Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> | 2012-06-12 15:10:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-09 08:31:38 -0700 |
| commit | 7e7a57b3ea066e3caf149feb37c6487d8423c772 (patch) | |
| tree | add5a030b33c5eb4d1d307c317725912ee122d47 /drivers/spi | |
| parent | da49dbd95a28bd166f8935f53ed76d406cd891ca (diff) | |
| download | linux-3.10-7e7a57b3ea066e3caf149feb37c6487d8423c772.tar.gz linux-3.10-7e7a57b3ea066e3caf149feb37c6487d8423c772.tar.bz2 linux-3.10-7e7a57b3ea066e3caf149feb37c6487d8423c772.zip | |
spi/pl022: disable port when unused
commit fd316941cfee1fbd12746afea83720fb7823888a upstream.
Commit ffbbdd21329f3e15eeca6df2d4bc11c04d9d91c0
"spi: create a message queueing infrastructure"
Accidentally deleted the logic to disable the port
when unused leading to higher power consumption.
Fix this up.
Cc: Vinit Shenoy <vinit.shenoy@st.com>
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pl022.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 400ae2121a2..469eb28e832 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -489,6 +489,11 @@ static void giveback(struct pl022 *pl022) pl022->cur_transfer = NULL; pl022->cur_chip = NULL; spi_finalize_current_message(pl022->master); + + /* disable the SPI/SSP operation */ + writew((readw(SSP_CR1(pl022->virtbase)) & + (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase)); + } /** |