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pwm-qpnp: fix the uninitialized pwm mode issue

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If the led request the PWM mode and the initial mode is PWM
when change the led pwm mode, it will fail to change pwm mode
for no mode change with a uninitialized return code and cause
the LED configuration failing

Change-Id: I29ba3823fb7b4f0d1b2a0d9f22c464c94fbe9717
Signed-off-by: yanyh2 <yanyh2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1072946
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yeqing Wang <wangyq13@motorola.com>
Reviewed-by: Coverity Analysis <coverity@motorola.com>
Reviewed-by: Kenneth Kessler <kennykessler@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
yanyh2 2017-10-12 12:51:56 +08:00 • committed by codeworkx
parent 9bf720ca64
commit b5207a48fe
1 changed files with 3 additions and 1 deletions
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4
drivers/pwm/pwm-qpnp.c
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@ -2230,8 +2230,10 @@ static int qpnp_parse_dt_config(struct platform_device *pdev,
}
rc = of_property_read_u32(of_node, "qcom,mode-select", &mode);
if (rc)
if (rc) {
chip->pwm_mode = -EINVAL;
goto read_opt_props;
}
if (mode > PM_PWM_MODE_LPG ||
(mode == PM_PWM_MODE_PWM && found_pwm_subnode == 0) ||