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regulator: rk806: Modify the implementation of RK806 shutdown

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Configure the shutdown function and level by directly setting PWRCTRL1
register‌, bypassing the pinctrl subsystem. Implement PMIC reset by
toggling the RESET pin‌ of PMIC through CPU GPIO control.

Change-Id: I370fd20638ef0fa08bcb67a3304509dc058b99d6
Signed-off-by: Shengfei Xu <xsf@rock-chips.com>
This commit is contained in:
Shengfei Xu
2025-07-31 09:37:23 +08:00
committed by Tao Huang
parent f9b09b3737
commit 905a8088c7
1 changed files with 3 additions and 5 deletions
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8
drivers/regulator/rk806-regulator.c
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@@ -1250,12 +1250,10 @@ static void rk806_regulator_shutdown(struct platform_device *pdev)
if (system_state == SYSTEM_POWER_OFF) {
rk806_shutdown_requence_config(rk806);
if ((rk806->pins->p) && (rk806->pins->power_off))
pinctrl_select_state(rk806->pins->p, rk806->pins->power_off);
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 (system_state == SYSTEM_RESTART)
if ((rk806->pins->p) && (rk806->pins->reset))
pinctrl_select_state(rk806->pins->p, rk806->pins->reset);
}
static const struct platform_device_id rk806_regulator_id_table[] = {