Searched hist:"53 e4acea0e819a6a8513e10a0773f2259ede0481" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/include/linux/amba/ |
| H A D | pl022.h | diff 53e4acea0e819a6a8513e10a0773f2259ede0481 Tue Nov 08 02:54:46 CST 2011 Chris Blair <chris.blair@stericsson.com> spi/pl022: add support for pm_runtime autosuspend
Adds support for configuring the spi bus to use autosuspend for
runtime power management. This can reduce the latency in starting an
spi transfer by not suspending the device immediately following
completion of a transfer. If another transfer then takes place before
the autosuspend timeout, the call to resume the device can return
immediately rather than needing to risk sleeping in order to resume
the device.
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Chris Blair <chris.blair@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
| /openbmc/linux/drivers/spi/ |
| H A D | spi-pl022.c | diff 53e4acea0e819a6a8513e10a0773f2259ede0481 Tue Nov 08 02:54:46 CST 2011 Chris Blair <chris.blair@stericsson.com> spi/pl022: add support for pm_runtime autosuspend
Adds support for configuring the spi bus to use autosuspend for
runtime power management. This can reduce the latency in starting an
spi transfer by not suspending the device immediately following
completion of a transfer. If another transfer then takes place before
the autosuspend timeout, the call to resume the device can return
immediately rather than needing to risk sleeping in order to resume
the device.
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Chris Blair <chris.blair@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|