shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

mfd: rk806: The shutdown pin of RK806 is configurable

Browse Source 
Configure which pin controls the shutdown function via the
shutown_by_pwrctrln property in the DTS.

Change-Id: I7bb3adf28ff7e93fd318d08274cb88271b925027
Signed-off-by: Shengfei Xu <xsf@rock-chips.com>
This commit is contained in:
Shengfei Xu
2025-09-24 11:52:16 +08:00
committed by Xushengfei
parent b7f7724895
commit db61801669
3 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/mfd/rk806-core.c
View File

@@ -789,6 +789,18 @@ static int rk806_parse_dt(struct rk806 *rk806)
if (device_property_read_bool(dev, "vdc-wakeup-enable"))
pdata->vdc_wakeup_enable = 1;
ret = device_property_read_u32(dev,
"shutown_by_pwrctrln",
&pdata->shutown_by_pwrctrln);
if (ret < 0) {
dev_info(dev, "shutown_by_pwrctrln missing!\n");
pdata->shutown_by_pwrctrln = 1;
}
if ((pdata->shutown_by_pwrctrln < 1) || (pdata->shutown_by_pwrctrln > 3)) {
dev_err(dev, "shutown_by_pwrctrln out [1 3]!\n");
pdata->shutown_by_pwrctrln = 1;
}
pdata->shutdown_sequence = devm_kzalloc(dev,
RK806_ID_END * sizeof(int),
GFP_KERNEL);

16
drivers/regulator/rk806-regulator.c
View File

@@ -1252,9 +1252,19 @@ static void rk806_regulator_shutdown(struct platform_device *pdev)
if (system_state == SYSTEM_POWER_OFF) {
rk806_shutdown_requence_config(rk806);
rk806_field_write(rk806, PWRCTRL1_FUN, PWRCTRL_NULL_FUN);
rk806_field_write(rk806, PWRCTRL1_POL, POL_HIGH);
rk806_field_write(rk806, PWRCTRL1_FUN, PWRCTRL_POWOFF_FUN);
if (rk806->pdata->shutown_by_pwrctrln == 2) {
rk806_field_write(rk806, PWRCTRL2_FUN, PWRCTRL_NULL_FUN);
rk806_field_write(rk806, PWRCTRL2_POL, POL_HIGH);
rk806_field_write(rk806, PWRCTRL2_FUN, PWRCTRL_POWOFF_FUN);
} else if (rk806->pdata->shutown_by_pwrctrln == 3) {
rk806_field_write(rk806, PWRCTRL3_FUN, PWRCTRL_NULL_FUN);
rk806_field_write(rk806, PWRCTRL3_POL, POL_HIGH);
rk806_field_write(rk806, PWRCTRL3_FUN, PWRCTRL_POWOFF_FUN);
} else {
rk806_field_write(rk806, PWRCTRL1_FUN, PWRCTRL_NULL_FUN);
rk806_field_write(rk806, PWRCTRL1_POL, POL_HIGH);
rk806_field_write(rk806, PWRCTRL1_FUN, PWRCTRL_POWOFF_FUN);
}
}
}

1
include/linux/mfd/rk806.h
View File

@@ -505,6 +505,7 @@ struct rk806_platform_data {
int hotdie_temperture_threshold;
int vdc_wakeup_enable;
int shutown_by_pwrctrln;
int *shutdown_sequence;
int *vb_shutdown_sequence;
int *dvs_control_suspend;