From fd316941cfee1fbd12746afea83720fb7823888a Mon Sep 17 00:00:00 2001 From: Virupax Sadashivpetimath Date: Tue, 12 Jun 2012 15:10:58 +0200 Subject: [PATCH] spi/pl022: disable port when unused 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: stable@kernel.org Cc: Vinit Shenoy Signed-off-by: Virupax Sadashivpetimath Signed-off-by: Linus Walleij --- drivers/spi/spi-pl022.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 400ae2121a2a..469eb28e8328 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)); + } /**