Move it to be inside the private data struct.
Signed-off-by: Mauro Carvalho Chehab <mchehab+hua...@kernel.org>
---
drivers/staging/hikey9xx/hi6421v600-regulator.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/hikey9xx/hi6421v600-regulator.c
b/drivers/staging/hikey9xx/hi6421v600-regulator.c
index 5469089a3daf..e96aab17a499 100644
--- a/drivers/staging/hikey9xx/hi6421v600-regulator.c
+++ b/drivers/staging/hikey9xx/hi6421v600-regulator.c
@@ -28,9 +28,10 @@ struct hi6421_spmi_reg_info {
struct hi6421_spmi_pmic *pmic;
u8 eco_mode_mask;
u32 eco_uA;
-};
-static DEFINE_MUTEX(enable_mutex);
+ /* Serialize regulator enable logic */
+ struct mutex enable_mutex;
+};
static const unsigned int ldo3_voltages[] = {
1500000, 1550000, 1600000, 1650000,
@@ -118,7 +119,7 @@ static int hi6421_spmi_regulator_enable(struct
regulator_dev *rdev)
struct hi6421_spmi_pmic *pmic = sreg->pmic;
/* cannot enable more than one regulator at one time */
- mutex_lock(&enable_mutex);
+ mutex_lock(&sreg->enable_mutex);
usleep_range(HISI_REGS_ENA_PROTECT_TIME,
HISI_REGS_ENA_PROTECT_TIME + 1000);
@@ -127,7 +128,7 @@ static int hi6421_spmi_regulator_enable(struct
regulator_dev *rdev)
rdev->desc->enable_mask,
rdev->desc->enable_mask);
- mutex_unlock(&enable_mutex);
+ mutex_unlock(&sreg->enable_mutex);
return 0;
}
@@ -312,6 +313,7 @@ static int hi6421_spmi_regulator_probe(struct
platform_device *pdev)
return -ENOMEM;
sreg->pmic = pmic;
+ mutex_init(&sreg->enable_mutex);
for (i = 0; i < ARRAY_SIZE(regulator_info); i++) {
/* assign per-regulator data */
--
2.29.2
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