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drm/panel: simple: Allow GPIO accesses to sleep

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The enable GPIO for panels may be provided by GPIO expanders on slow
busses (such as I2C), and therefore toggling the GPIO may sleep. Since
these accesses don't happen in interrupt context, use the *_cansleep()
variants of the GPIO API.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2014-03-14 12:03:47 +01:00
parent 887eb66e3a
commit 15c1a919ae
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/panel/panel-simple.c
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@ -106,7 +106,7 @@ static int panel_simple_disable(struct drm_panel *panel)
}
if (p->enable_gpio)
gpiod_set_value(p->enable_gpio, 0);
gpiod_set_value_cansleep(p->enable_gpio, 0);
regulator_disable(p->supply);
p->enabled = false;
@ -129,7 +129,7 @@ static int panel_simple_enable(struct drm_panel *panel)
}
if (p->enable_gpio)
gpiod_set_value(p->enable_gpio, 1);
gpiod_set_value_cansleep(p->enable_gpio, 1);
if (p->backlight) {
p->backlight->props.power = FB_BLANK_UNBLANK;