tree 69a44449deb3d5fb398bee9a634e03763c71b5c8
parent 83cebb6893f6319525f11f4ea7327f6da4e106b2
author Jonathan Bakker <xc-racer2@live.ca> 1587856246 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1592641519 +0200

pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs

commit f354157a7d184db430c1a564c506434e33b1bec5 upstream.

Currently, for EINT_TYPE GPIOs, the CON and FLTCON registers
are saved and restored over a suspend/resume cycle.  However, the
EINT_MASK registers are not.

On S5PV210 at the very least, these registers are not retained over
suspend, leading to the interrupts remaining masked upon resume and
therefore no interrupts being triggered for the device.  There should
be no effect on any SoCs that do retain these registers as theoretically
we would just be re-writing what was already there.

Fixes: 7ccbc60cd9c2 ("pinctrl: exynos: Handle suspend/resume of GPIO EINT registers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>