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power: supply: qcom_smbx: allow disabling charging 

Hook up USBIN_CMD_IL so that writing "0" to the status register will
disable charging, this is useful to let users limit charging
automatically.

Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://patch.msgid.link/20260315-smb2-cherry-pick-v1-1-b2710e470490@ixit.cz
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
master
Casey Connolly 2026-03-15 20:40:16 +01:00 committed by Sebastian Reichel
parent 0629c33fe1
commit 98d68b74eb
1 changed files with 7 additions and 0 deletions
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7
drivers/power/supply/qcom_smbx.c
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@ -134,6 +134,9 @@
#define OCP_CHARGER_BIT BIT(1)
#define SDP_CHARGER_BIT BIT(0)
#define USBIN_CMD_IL 0x340
#define USBIN_SUSPEND_BIT BIT(0)
#define TYPE_C_STATUS_1 0x30B
#define UFP_TYPEC_MASK GENMASK(7, 5)
#define UFP_TYPEC_RDSTD_BIT BIT(7)
@ -693,6 +696,9 @@ static int smb_set_property(struct power_supply *psy,
struct smb_chip *chip = power_supply_get_drvdata(psy);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
return regmap_update_bits(chip->regmap, chip->base + USBIN_CMD_IL,
USBIN_SUSPEND_BIT, !val->intval);
case POWER_SUPPLY_PROP_CURRENT_MAX:
return smb_set_current_limit(chip, val->intval);
default:
@ -705,6 +711,7 @@ static int smb_property_is_writable(struct power_supply *psy,
enum power_supply_property psp)
{
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
case POWER_SUPPLY_PROP_CURRENT_MAX:
return 1;
default: