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| author | Dave Gerlach <d-gerlach@ti.com> | 2014-10-31 22:28:57 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-12-17 12:42:31 +0100 |
| commit | 5038bb8cb2c9dfec6d188bdf9fc0d7a358e1e2ee (patch) | |
| tree | 25f76498413c7f6bd12f468fd6819afcf7957f8d /drivers/video | |
| parent | video: fbdev: pxafb: initial devicetree conversion (diff) | |
| download | linux-5038bb8cb2c9dfec6d188bdf9fc0d7a358e1e2ee.tar.xz linux-5038bb8cb2c9dfec6d188bdf9fc0d7a358e1e2ee.zip | |
OMAPDSS: adopt pinctrl support
Update omapdss driver to set the state of the pins to:
- "default on resume
- "sleep" on suspend
By optionally putting the pins into sleep state in the suspend callback
we can accomplish two things.
- minimize current leakage from pins and thus save power,
- prevent the IP from driving pins output in an uncontrolled manner,
which may happen if the power domain drops the domain regulator.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/dss.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dss.c b/drivers/video/fbdev/omap2/dss/dss.c index 9200a8668b49..f95ff319e68e 100644 --- a/drivers/video/fbdev/omap2/dss/dss.c +++ b/drivers/video/fbdev/omap2/dss/dss.c @@ -1264,12 +1264,18 @@ static int dss_runtime_suspend(struct device *dev) { dss_save_context(); dss_set_min_bus_tput(dev, 0); + + pinctrl_pm_select_sleep_state(dev); + return 0; } static int dss_runtime_resume(struct device *dev) { int r; + + pinctrl_pm_select_default_state(dev); + /* * Set an arbitrarily high tput request to ensure OPP100. * What we should really do is to make a request to stay in OPP100, |