diff options
| author | Chris Blair <chris.blair@stericsson.com> | 2012-02-02 13:59:34 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-02-02 11:32:16 -0700 |
| commit | 14af60b6fb3b76634278364b697dae2f9f360abf (patch) | |
| tree | 7b454608c85bb6823384009a90ebe290431f17cf /drivers/spi/spi-omap2-mcspi.c | |
| parent | 90bbf4fdf2dc64aa7c20a93a9744c56a566baf26 (diff) | |
spi/pl022: Add high priority message pump support
This switches the PL022 worker to a kthread in order to get
hold of a mechanism to control the message pump priority. On
low-latency systems elevating the message kthread to realtime
priority give a real sleek response curve. This has been
confirmed by measurements. Realtime priority elevation for
a certain PL022 port can be requested from platform data.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-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>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/spi-omap2-mcspi.c')
0 files changed, 0 insertions, 0 deletions