A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 12:58:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

backlight: qcom-spmi-wled: Add support for PM7325B WLED

Browse source 
Add new compatible string for PM7325B WLED. Add support to read
battery resistance, current and OCV from battery charger driver
through glink based interface.

Change-Id: I421c4225862c4f72f00dff14214b1b613c93fa42
Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
This commit is contained in:
Jishnu Prakash 2020-12-24 10:27:33 +05:30
commit 041c8f64d9
1 changed files with 70 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

91
drivers/video/backlight/qcom-spmi-wled.c
View file

@ -3,7 +3,7 @@
* Copyright (c) 2015, Sony Mobile Communications, AB.
*/
/*
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2018-2021, The Linux Foundation. All rights reserved.
*/
#define pr_fmt(fmt) "WLED: %s: " fmt, __func__
@ -18,6 +18,8 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
#include <linux/power_supply.h>
#include <linux/soc/qcom/battery_charger.h>
#include <linux/regmap.h>
#include <linux/spinlock.h>
#include <linux/leds-qpnp-flash.h>
@ -182,6 +184,7 @@ enum wled_version {
WLED_PMI8998 = 4,
WLED_PM660L,
WLED_PM8150L,
WLED_PM7325B,
};
enum wled_flash_mode {
@ -194,6 +197,7 @@ static const int version_table[] = {
[0] = WLED_PMI8998,
[1] = WLED_PM660L,
[2] = WLED_PM8150L,
[3] = WLED_PM7325B,
};
struct wled_config {
@ -220,6 +224,7 @@ struct wled {
struct platform_device *pdev;
struct regmap *regmap;
struct iio_channel **iio_channels;
struct power_supply *batt_psy;
struct mutex lock;
struct wled_config cfg;
ktime_t last_sc_event_time;
@ -241,6 +246,7 @@ struct wled {
bool auto_calib_done;
bool force_mod_disable;
bool cabc_disabled;
bool use_psy;
int (*cabc_config)(struct wled *wled, bool enable);
struct led_classdev flash_cdev;
@ -299,7 +305,7 @@ static inline bool is_wled4(struct wled *wled)
static inline bool is_wled5(struct wled *wled)
{
if (*wled->version == WLED_PM8150L)
if (*wled->version == WLED_PM8150L || *wled->version == WLED_PM7325B)
return true;
return false;
@ -314,7 +320,7 @@ static int wled_module_enable(struct wled *wled, int val)
return 0;
/* Force HFRC off */
if (*wled->version == WLED_PM8150L) {
if (is_wled5(wled)) {
reg = val ? 0 : 3;
rc = regmap_write(wled->regmap, wled->ctrl_addr +
WLED5_CTRL_PBUS_WRITE_SYNC_CTL, reg);
@ -329,7 +335,7 @@ static int wled_module_enable(struct wled *wled, int val)
return rc;
/* Force HFRC off */
if (*wled->version == WLED_PM8150L && val) {
if (is_wled5(wled) && val) {
rc = regmap_write(wled->regmap, wled->sink_addr +
WLED5_SINK_FLASH_SHDN_CLR_REG, 0);
if (rc < 0)
@ -1561,6 +1567,7 @@ static int wled_get_max_avail_current(struct led_classdev *led_cdev,
struct wled *wled;
int rc, ocv_mv, r_bat_mohms, i_bat_ma, i_sink_ma = 0, max_fsc_ma;
int64_t p_out_string, p_out, p_in, v_safe_mv, i_flash_ma, v_ph_mv;
union power_supply_propval prop = {};
if (!strcmp(led_cdev->name, "wled_switch"))
wled = container_of(led_cdev, struct wled, switch_cdev);
@ -1576,26 +1583,59 @@ static int wled_get_max_avail_current(struct led_classdev *led_cdev,
return 0;
}
rc = wled_iio_get_prop(wled, OCV, &ocv_mv);
if (rc < 0) {
pr_err("Error in getting OCV rc=%d\n", rc);
return rc;
}
ocv_mv /= 1000;
if (wled->use_psy) {
if (!wled->batt_psy)
wled->batt_psy = power_supply_get_by_name("battery");
rc = wled_iio_get_prop(wled, IBAT, &i_bat_ma);
if (rc < 0) {
pr_err("Error in getting I_BAT rc=%d\n", rc);
return rc;
}
i_bat_ma /= 1000;
if (!wled->batt_psy) {
pr_err("Failed to get battery power supply\n");
return -ENODEV;
}
rc = wled_iio_get_prop(wled, RBATT, &r_bat_mohms);
if (rc < 0) {
pr_err("Error in getting R_BAT rc=%d\n", rc);
return rc;
rc = power_supply_get_property(wled->batt_psy, POWER_SUPPLY_PROP_VOLTAGE_OCV,
&prop);
if (rc < 0) {
pr_err("Failed to get battery OCV, rc=%d\n", rc);
return rc;
}
ocv_mv = prop.intval/1000;
rc = power_supply_get_property(wled->batt_psy, POWER_SUPPLY_PROP_CURRENT_NOW,
&prop);
if (rc < 0) {
pr_err("Failed to get battery current, rc=%d\n", rc);
return rc;
}
i_bat_ma = -prop.intval/1000;
rc = qti_battery_charger_get_prop("battery", BATTERY_RESISTANCE, &r_bat_mohms);
if (rc < 0) {
pr_err("Failed to get battery resistance, rc=%d\n", rc);
return rc;
}
r_bat_mohms /= 1000;
} else {
rc = wled_iio_get_prop(wled, OCV, &ocv_mv);
if (rc < 0) {
pr_err("Error in getting OCV rc=%d\n", rc);
return rc;
}
ocv_mv /= 1000;
rc = wled_iio_get_prop(wled, IBAT, &i_bat_ma);
if (rc < 0) {
pr_err("Error in getting I_BAT rc=%d\n", rc);
return rc;
}
i_bat_ma /= 1000;
rc = wled_iio_get_prop(wled, RBATT, &r_bat_mohms);
if (rc < 0) {
pr_err("Error in getting R_BAT rc=%d\n", rc);
return rc;
}
r_bat_mohms /= 1000;
}
r_bat_mohms /= 1000;
pr_debug("ocv: %d i_bat: %d r_bat: %d\n", ocv_mv, i_bat_ma,
r_bat_mohms);
@ -2340,6 +2380,14 @@ static int wled_probe(struct platform_device *pdev)
return -ENODEV;
}
switch (*wled->version) {
case WLED_PM7325B:
wled->use_psy = true;
break;
default:
break;
}
rc = wled_configure(wled, &pdev->dev);
if (rc < 0) {
dev_err(&pdev->dev, "wled configure failed rc:%d\n", rc);
@ -2413,6 +2461,7 @@ static const struct of_device_id wled_match_table[] = {
{ .compatible = "qcom,pm8150l-spmi-wled", .data = &version_table[2] },
{ .compatible = "qcom,pm6150l-spmi-wled", .data = &version_table[2] },
{ .compatible = "qcom,pm660l-spmi-wled", .data = &version_table[1] },
{ .compatible = "qcom,pm7325b-spmi-wled", .data = &version_table[3] },
{ },
};