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| author | Bjorn Andersson <bjorn.andersson@sonymobile.com> | 2015-02-12 06:39:13 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-02-23 17:16:01 +0300 |
| commit | 2b85c28a5a7cb0f6bf5899125437812e67e02f70 (patch) | |
| tree | 19ff4625abee8ada215e04caa65b2add033dc856 | |
| parent | 8f4490e09694efaf7fe60ac6a1135530aa8c05ad (diff) | |
| download | linux-2b85c28a5a7cb0f6bf5899125437812e67e02f70.tar.xz | |
regulator: qcom-rpm: Implement set_load and enable drms
Pass the requested load directly to the rpm.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/regulator/qcom_rpm-regulator.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c index 00c5cc3d9546..15e07c233c1e 100644 --- a/drivers/regulator/qcom_rpm-regulator.c +++ b/drivers/regulator/qcom_rpm-regulator.c @@ -393,6 +393,28 @@ 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, @@ -402,6 +424,8 @@ 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 = { @@ -413,6 +437,8 @@ 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 = { @@ -706,6 +732,10 @@ 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); |