drm/tilcdc: adopt pinctrl support

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Update tilcdc 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>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Dave Gerlach 2014-07-29 06:27:58 +00:00 • committed by Jyri Sarha

parent 6f206e9d2a

commit 416a07fbe7

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/tilcdc/tilcdc_drv.c

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