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mfd: stmfx: Disable IRQ in suspend to avoid spurious interrupt

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When STMFX supply is stopped, spurious interrupt can occur. To avoid that,
disable the interrupt in suspend before disabling the regulator and
re-enable it at the end of resume.

Fixes: 06252ade91 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Amelie Delaunay 2020-04-22 11:08:33 +02:00 • committed by Lee Jones
parent 60c2c4bcb9
commit 97eda5dcc2
2 changed files with 7 additions and 0 deletions
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1
include/linux/mfd/stmfx.h
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@ -109,6 +109,7 @@ struct stmfx {
struct device *dev;
struct regmap *map;
struct regulator *vdd;
int irq;
struct irq_domain *irq_domain;
struct mutex lock; /* IRQ bus lock */
u8 irq_src;