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DLKM: leds_aw99703: support update by panel config

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leds_aw99703: support update reg value by panel config
Cebu: 3rd panel need update reg05 to fix RF issue
Add panel config to support this req
NO_PROP_NEEDED

Change-Id: Icb4bf864ae7d9779d5f0dcee97c8ea82c8b0b1af
Signed-off-by: hujing3 <hujing3@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1840209
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
hujing3 2021-01-08 16:46:14 +08:00 committed by Jing Hu
parent 06c2fa7c8b
commit 3b3a935df6
2 changed files with 66 additions and 1 deletions
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64
drivers/backlight/aw99703/leds_aw99703.c
View file

@ -292,10 +292,18 @@ static int aw99703_backlight_init(struct aw99703_data *drvdata)
AW99703_BSTCTR1_OCPSEL_3P3A);
/*BSTCRT2 IDCTSEL*/
aw99703_i2c_write_bit(drvdata->client,
if (drvdata->bl_reconfig_enable && (AW99703_REG_BSTCTR2 == drvdata->bl_slow_reg)) {
pr_info("%s: REG_BSTCTR2 slow set\n", __func__);
aw99703_i2c_write_bit(drvdata->client,
AW99703_REG_BSTCTR2,
AW99703_BSTCTR2_IDCTSEL_MASK | AW99703_BSTCTR2_EMISEL_MASK,
AW99703_BSTCTR2_IDCTSEL_10UH | AW99703_BSTCTR2_EMISEL_SLOW1);
} else {
aw99703_i2c_write_bit(drvdata->client,
AW99703_REG_BSTCTR2,
AW99703_BSTCTR2_IDCTSEL_MASK,
AW99703_BSTCTR2_IDCTSEL_10UH);
}
/*Backlight current full scale*/
aw99703_i2c_write_bit(drvdata->client,
@ -450,6 +458,39 @@ static void aw99703_brightness_set(struct led_classdev *led_cdev,
schedule_work(&drvdata->work);
}
static int aw99703_parse_dt(struct aw99703_data *drvdata)
{
struct device_node *chosen;
int rc = -EINVAL;
pr_info("%s enter\n", __func__);
chosen = of_find_node_by_name(NULL, "chosen");
if (chosen) {
const char *supplier;
char *s, *d;
rc = of_property_read_string(chosen, "mmi,panel_name", (const char **)&supplier);
if (rc) {
pr_info("%s: cannot read mmi,panel_name %d\n", __func__, rc);
} else {
int split_num = 0;
/* keep panel & ic info */
s = (char *)supplier;
d = drvdata->panel_info;
while (*s && split_num < 2) {
*d++ = *s++;
if (*s == '_')
split_num++;
}
pr_info("%s: panel_info %s\n", __func__, drvdata->panel_info);
}
of_node_put(chosen);
}
return rc;
}
static void
aw99703_get_dt_data(struct device *dev, struct aw99703_data *drvdata)
{
@ -535,6 +576,27 @@ aw99703_get_dt_data(struct device *dev, struct aw99703_data *drvdata)
pr_err("%s bl_map not found\n", __func__);
else
pr_info("%s bl_map=%d\n", __func__, drvdata->bl_map);
rc = of_property_read_u32(np, "aw99703,bl-slow-reg", &drvdata->bl_slow_reg);
if (!rc) {
const char *reconfg_panel;
pr_info("%s bl_slow_reg=%d\n", __func__, drvdata->bl_slow_reg);
rc = of_property_read_string(np, "aw99703,bl-reconfig-panel", (const char **)&reconfg_panel);
if (rc) {
/* enable for all panels */
drvdata->bl_reconfig_enable = true;
}
else {
rc = aw99703_parse_dt(drvdata);
if (!rc && strstr(drvdata->panel_info, reconfg_panel)) {
/* enable for matched panel */
drvdata->bl_reconfig_enable = true;
}
}
pr_info("%s bl_reconfig_enable=%d\n", __func__, drvdata->bl_reconfig_enable);
}
}
/******************************************************

3
drivers/backlight/aw99703/leds_aw99703.h
View file

@ -231,6 +231,9 @@ struct aw99703_data {
int hwen_gpio;
unsigned int pwm_mode;
bool using_lsb;
bool bl_reconfig_enable;
char panel_info[16];
unsigned int bl_slow_reg;
unsigned int pwm_period;
unsigned int full_scale_led;
unsigned int ramp_on_time;