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authorMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>2021-06-03 07:42:12 +0200
committerMark Brown <broonie@kernel.org>2021-06-21 14:08:41 +0200
commit89a6a5e56c8248a077d12424a1383a6b18ea840b (patch)
tree31a8361eae067daac0747acaac685a5db14cffad /drivers/regulator/qcom-labibb-regulator.c
parentregulator: IRQ based event/error notification helpers (diff)
downloadlinux-89a6a5e56c8248a077d12424a1383a6b18ea840b.tar.xz
linux-89a6a5e56c8248a077d12424a1383a6b18ea840b.zip
regulator: add property parsing and callbacks to set protection limits
Add DT property parsing code and setting callback for regulator over/under voltage, over-current and temperature error limits. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Link: https://lore.kernel.org/r/e7b8007ba9eae7076178bf3363fb942ccb1cc9a5.1622628334.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/qcom-labibb-regulator.c')
-rw-r--r--drivers/regulator/qcom-labibb-regulator.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/regulator/qcom-labibb-regulator.c b/drivers/regulator/qcom-labibb-regulator.c
index de25e3279b4b..b3da0dc58782 100644
--- a/drivers/regulator/qcom-labibb-regulator.c
+++ b/drivers/regulator/qcom-labibb-regulator.c
@@ -307,13 +307,21 @@ end:
return IRQ_HANDLED;
}
-static int qcom_labibb_set_ocp(struct regulator_dev *rdev)
+static int qcom_labibb_set_ocp(struct regulator_dev *rdev, int lim,
+ int severity, bool enable)
{
struct labibb_regulator *vreg = rdev_get_drvdata(rdev);
char *ocp_irq_name;
u32 irq_flags = IRQF_ONESHOT;
int irq_trig_low, ret;
+ /*
+ * labibb supports only protection - and does not support setting
+ * limit. Furthermore, we don't support disabling protection.
+ */
+ if (lim || severity != REGULATOR_SEVERITY_PROT || !enable)
+ return -EINVAL;
+
/* If there is no OCP interrupt, there's nothing to set */
if (vreg->ocp_irq <= 0)
return -EINVAL;