diff options
| author | Subbaraman Narayanamurthy <subbaram@codeaurora.org> | 2016-11-15 19:39:08 -0800 |
|---|---|---|
| committer | Subbaraman Narayanamurthy <subbaram@codeaurora.org> | 2016-11-21 13:07:19 -0800 |
| commit | 027e7227e270662b770c2e49ff1178cc4f94c5cb (patch) | |
| tree | 515dc5512ef872ae2f9682b6894b2ab52657aac1 | |
| parent | e2787f510d8879a6608bf41d0a62e32244da18fc (diff) | |
qpnp-smb2: add support to configure auto recharge
Currently, smb2 charger uses VBT_LT_CHG_RECHARGE_THRESH signal
from FG to enable auto recharge by default. Add support to
configure smb2 charger to use SOC_LT_CHG_RECHARGE_THRESH signal
from FG if needed.
This will enable charging to resume again when battery SOC drops
below the automatic recharge SOC threshold (configured in FG)
while charger is inserted and SOC goes down after the charge
termination had happened.
Change-Id: Ic68cd12cc861d04e107b70e2b96200483f13da26
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
| -rw-r--r-- | Documentation/devicetree/bindings/power/qcom-charger/qpnp-smb2.txt | 8 | ||||
| -rw-r--r-- | drivers/power/qcom-charger/qpnp-smb2.c | 27 |
2 files changed, 34 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/power/qcom-charger/qpnp-smb2.txt b/Documentation/devicetree/bindings/power/qcom-charger/qpnp-smb2.txt index 7090426c68f8..bff6e1190d75 100644 --- a/Documentation/devicetree/bindings/power/qcom-charger/qpnp-smb2.txt +++ b/Documentation/devicetree/bindings/power/qcom-charger/qpnp-smb2.txt @@ -138,6 +138,14 @@ Charger specific properties: then charge inhibit will be disabled by default. Allowed values are: 50, 100, 200, 300. +- qcom,auto-recharge-soc + Usage: optional + Value type: <empty> + Definition: Specifies if automatic recharge needs to be based off battery + SOC. If this property is not specified, then auto recharge will + be based off battery voltage. For both SOC and battery voltage, + charger receives the signal from FG to resume charging. + ============================================= Second Level Nodes - SMB2 Charger Peripherals ============================================= diff --git a/drivers/power/qcom-charger/qpnp-smb2.c b/drivers/power/qcom-charger/qpnp-smb2.c index 8248fcee341d..c11bdde64809 100644 --- a/drivers/power/qcom-charger/qpnp-smb2.c +++ b/drivers/power/qcom-charger/qpnp-smb2.c @@ -214,7 +214,6 @@ static struct smb_params v1_params = { #define STEP_CHARGING_MAX_STEPS 5 struct smb_dt_props { - bool no_battery; int fcc_ua; int usb_icl_ua; int otg_cl_ua; @@ -226,7 +225,9 @@ struct smb_dt_props { struct device_node *revid_dev_node; int float_option; int chg_inhibit_thr_mv; + bool no_battery; bool hvdcp_disable; + bool auto_recharge_soc; }; struct smb2 { @@ -344,6 +345,8 @@ static int smb2_parse_dt(struct smb2 *chip) return -EINVAL; } + chip->dt.auto_recharge_soc = of_property_read_bool(node, + "qcom,auto-recharge-soc"); return 0; } @@ -1295,6 +1298,28 @@ static int smb2_init_hw(struct smb2 *chip) return rc; } + if (chip->dt.auto_recharge_soc) { + rc = smblib_masked_write(chg, FG_UPDATE_CFG_2_SEL_REG, + SOC_LT_CHG_RECHARGE_THRESH_SEL_BIT | + VBT_LT_CHG_RECHARGE_THRESH_SEL_BIT, + VBT_LT_CHG_RECHARGE_THRESH_SEL_BIT); + if (rc < 0) { + dev_err(chg->dev, "Couldn't configure FG_UPDATE_CFG2_SEL_REG rc=%d\n", + rc); + return rc; + } + } else { + rc = smblib_masked_write(chg, FG_UPDATE_CFG_2_SEL_REG, + SOC_LT_CHG_RECHARGE_THRESH_SEL_BIT | + VBT_LT_CHG_RECHARGE_THRESH_SEL_BIT, + SOC_LT_CHG_RECHARGE_THRESH_SEL_BIT); + if (rc < 0) { + dev_err(chg->dev, "Couldn't configure FG_UPDATE_CFG2_SEL_REG rc=%d\n", + rc); + return rc; + } + } + return rc; } |