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kernel: vibrator: diff vol for long/short vib

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This is a workarround to reduce the vibrator strength for long vib.
Add attribute "qcom,vib-dis-short-long" in device-tree to enable the
function.

Change-Id: I91e2612f878e6e6614d46797bcd7987cd46b9fba
Signed-off-by: wuwl10 <[email protected]>
Reviewed-on: https://gerrit.mot.com/1995828
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Wanlong Zhou <[email protected]>
Reviewed-by: Zhenghai Pan <[email protected]>
Reviewed-by: Huosheng Liao <[email protected]>
Submit-Approved: Jira Key
This commit is contained in:
panzh2 2020-11-18 13:45:15 +08:00 • committed by Xiaojun Ji
commit 008a545e92
1 changed files with 35 additions and 0 deletions
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35
drivers/leds/leds-qpnp-vibrator-ldo.c
View file

@ -54,6 +54,10 @@ struct vib_ldo_chip {
u64 vib_play_ms;
bool vib_enabled;
bool disable_overdrive;
bool dis_short_long;
int dis_long_ms;
int vmax_uV_long;
};
static inline int qpnp_vib_ldo_poll_status(struct vib_ldo_chip *chip)
@ -144,6 +148,15 @@ static int qpnp_vibrator_play_on(struct vib_ldo_chip *chip)
int ret;
volt_uV = chip->vmax_uV;
if (chip->dis_short_long) {
pr_debug("vib in dis short and long, play ms=%d, dis_longms=%d, vmax_uV=%d, vmax_uV_long=%d\n",
chip->vib_play_ms, chip->dis_long_ms, chip->vmax_uV, chip->vmax_uV_long);
if (chip->vib_play_ms > chip->dis_long_ms) {
volt_uV = chip->vmax_uV_long;
}
}
if (!chip->disable_overdrive)
volt_uV = chip->overdrive_volt_uV ? chip->overdrive_volt_uV
: min(chip->vmax_uV * 2, QPNP_VIB_LDO_VMAX_UV);
@ -386,6 +399,28 @@ static int qpnp_vib_parse_dt(struct device *dev, struct vib_ldo_chip *chip)
return ret;
}
chip->dis_short_long = of_property_read_bool(dev->of_node,
"qcom,vib-dis-short-long");
if (chip->dis_short_long) {
pr_warn("read dis_short_long true");
ret = of_property_read_u32(dev->of_node, "qcom,vib-dis-short-long-val",
&chip->dis_long_ms);
if (ret < 0) {
pr_err("qcom,vib-dis-short-long-val property read failed, ret=%d\n", ret);
return ret;
}
pr_warn("read dis_long_ms=%d\n", chip->dis_long_ms);
ret = of_property_read_u32(dev->of_node, "qcom,vib-ldo-volt-uv-long",
&chip->vmax_uV_long);
if (ret < 0) {
pr_err("qcom,vib-ldo-volt-uv-long property read failed, ret=%d\n", ret);
return ret;
}
pr_warn("read vmax_uV_long=%d\n", chip->vmax_uV_long);
}
chip->disable_overdrive = of_property_read_bool(dev->of_node,
"qcom,disable-overdrive");