regulator: mp8859: Support active discharge control

The MP8859 can actively discharge the output when disabled, add support for
controlling this feature.

Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://msgid.link/r/20240225-regulator-mp8859-v1-5-68ee2c839ded@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/mp8859.c b/drivers/regulator/mp8859.c
index b97c00097148e6f9149e78df74aa9827f741f634..87ef34875be19570cfccde7890af327e09fa48d3 100644 (file)
--- a/drivers/regulator/mp8859.c
+++ b/drivers/regulator/mp8859.c
@@ -36,6 +36,7 @@
 #define MP8859_GO_BIT                  0x01
 
 #define MP8859_ENABLE_MASK             0x80
+#define MP8859_DISCHG_EN_MASK          0x10
 #define MP8859_MODE_MASK               0x08
 
 static int mp8859_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
@@ -167,6 +168,7 @@ static const struct regulator_ops mp8859_ops = {
        .is_enabled = regulator_is_enabled_regmap,
        .set_mode = mp8859_set_mode,
        .get_mode = mp8859_get_mode,
+       .set_active_discharge = regulator_set_active_discharge_regmap,
 };
 
 static const struct regulator_desc mp8859_regulators[] = {
@@ -182,6 +184,9 @@ static const struct regulator_desc mp8859_regulators[] = {
                .enable_reg = MP8859_CTL1_REG,
                .enable_mask = MP8859_ENABLE_MASK,
                .enable_val = MP8859_ENABLE_MASK,
+               .active_discharge_reg = MP8859_CTL1_REG,
+               .active_discharge_on = MP8859_DISCHG_EN_MASK,
+               .active_discharge_mask = MP8859_DISCHG_EN_MASK,
                .ops = &mp8859_ops,
                .owner = THIS_MODULE,
        },