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Subject[PATCH 2/2] regulator: qcom-rpm: Implement set_load and enable drms
Date
Pass the requested load directly to the rpm.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
---
drivers/regulator/qcom_rpm-regulator.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c
index 8364ff3..bab35c6 100644
--- a/drivers/regulator/qcom_rpm-regulator.c
+++ b/drivers/regulator/qcom_rpm-regulator.c
@@ -388,6 +388,28 @@ static int rpm_reg_is_enabled(struct regulator_dev *rdev)
return vreg->is_enabled;
}

+static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
+{
+ struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+ const struct rpm_reg_parts *parts = vreg->parts;
+ const struct request_member *req = &parts->ia;
+ int load_mA = load_uA / 1000;
+ int max_mA = req->mask >> req->shift;
+ int ret;
+
+ if (req->mask == 0)
+ return -EINVAL;
+
+ if (load_mA > max_mA)
+ load_mA = max_mA;
+
+ mutex_lock(&vreg->lock);
+ ret = rpm_reg_write(vreg, req, load_mA);
+ mutex_unlock(&vreg->lock);
+
+ return ret;
+}
+
static struct regulator_ops uV_ops = {
.list_voltage = regulator_list_voltage_linear_range,

@@ -397,6 +419,8 @@ static struct regulator_ops uV_ops = {
.enable = rpm_reg_uV_enable,
.disable = rpm_reg_uV_disable,
.is_enabled = rpm_reg_is_enabled,
+
+ .set_load = rpm_reg_set_load,
};

static struct regulator_ops mV_ops = {
@@ -408,6 +432,8 @@ static struct regulator_ops mV_ops = {
.enable = rpm_reg_mV_enable,
.disable = rpm_reg_mV_disable,
.is_enabled = rpm_reg_is_enabled,
+
+ .set_load = rpm_reg_set_load,
};

static struct regulator_ops switch_ops = {
@@ -700,6 +726,10 @@ static int rpm_reg_probe(struct platform_device *pdev)
return -EINVAL;
}

+ /* Regulators with ia property suppports drms */
+ if (vreg->parts->ia.mask)
+ initdata->constraints.valid_ops_mask |= REGULATOR_CHANGE_DRMS;
+
key = "bias-pull-down";
if (of_property_read_bool(pdev->dev.of_node, key)) {
ret = rpm_reg_set(vreg, &vreg->parts->pd, 1);
--
1.8.2.2


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