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leds-qti-tri-led: Switch to use qpnp_lpg_pwm_{set_output_type,get_output_types_supported}

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'Commit 106a4b85e0
("BACKPORT: FROMLIST: pwm: Add support for different PWM output types")'
cannot be carried forward. To support breath functionality make use of
the following APIs.

- qpnp_lpg_pwm_set_output_type
- qpnp_lpg_pwm_get_output_types_supported

This is needed to switch PWM output type to PWM (fixed) or LPG/PPG
(modulated).

Change-Id: I7e82f5d102b382c2a059e7b11a907c1d0c654b26
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
This commit is contained in:
Subbaraman Narayanamurthy 2021-09-22 16:20:03 -07:00 committed by Gerrit - the friendly Code Review server
parent 12e992f5a6
commit 296495669f
1 changed files with 12 additions and 4 deletions
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16
drivers/leds/leds-qti-tri-led.c
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@ -18,6 +18,7 @@
#include <linux/pwm.h>
#include <linux/regmap.h>
#include <linux/types.h>
#include <linux/qpnp/qti-pwm.h>
#define TRILED_REG_TYPE 0x04
#define TRILED_REG_SUBTYPE 0x05
@ -111,17 +112,24 @@ static int __tri_led_config_pwm(struct qpnp_led_dev *led,
struct pwm_setting *pwm)
{
struct pwm_state pstate;
enum pwm_output_type output_type;
int rc;
pwm_get_state(led->pwm_dev, &pstate);
pstate.enabled = !!(pwm->duty_ns != 0);
pstate.period = pwm->period_ns;
pstate.duty_cycle = pwm->duty_ns;
pstate.output_type = led->led_setting.breath ?
output_type = led->led_setting.breath ?
PWM_OUTPUT_MODULATED : PWM_OUTPUT_FIXED;
rc = pwm_apply_state(led->pwm_dev, &pstate);
rc = qpnp_lpg_pwm_set_output_type(led->pwm_dev, output_type);
if (rc < 0) {
dev_err(led->chip->dev, "Set output_type for %s led failed, rc=%d\n",
led->cdev.name, rc);
return rc;
}
rc = pwm_apply_state(led->pwm_dev, &pstate);
if (rc < 0)
dev_err(led->chip->dev, "Apply PWM state for %s led failed, rc=%d\n",
led->cdev.name, rc);
@ -418,8 +426,8 @@ static int qpnp_tri_led_register(struct qpnp_tri_led_chip *chip)
goto err_out;
}
if (pwm_get_output_type_supported(led->pwm_dev)
& PWM_OUTPUT_MODULATED) {
rc = qpnp_lpg_pwm_get_output_types_supported(led->pwm_dev);
if (rc > 0 && (rc & PWM_OUTPUT_MODULATED)) {
rc = sysfs_create_files(&led->cdev.dev->kobj,
breath_attrs);
if (rc < 0) {