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dm: regulator: add "regulator-loader-ignore" property support 

The property indicates this regulator should skip init setting
sequence, usually for saving boot time.

Change-Id: I40a81c84b0696c70b16ddba50aeb457412287116
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
This commit is contained in:
Joseph Chen 2019-03-26 10:46:45 +08:00 committed by Jianhong Chen
parent ea4b8016c1
commit 6999767bb2
2 changed files with 5 additions and 0 deletions
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4
drivers/power/regulator/regulator-uclass.c
View File

@ -265,6 +265,9 @@ int regulator_autoset(struct udevice *dev)
uc_pdata = dev_get_uclass_platdata(dev); uc_pdata = dev_get_uclass_platdata(dev);
if (uc_pdata->ignore)
return ret;
if (uc_pdata->ramp_delay != -ENODATA) if (uc_pdata->ramp_delay != -ENODATA)
regulator_set_ramp_delay(dev, uc_pdata->ramp_delay); regulator_set_ramp_delay(dev, uc_pdata->ramp_delay);
@ -437,6 +440,7 @@ static int regulator_pre_probe(struct udevice *dev)
-ENODATA); -ENODATA);
uc_pdata->always_on = dev_read_bool(dev, "regulator-always-on"); uc_pdata->always_on = dev_read_bool(dev, "regulator-always-on");
uc_pdata->boot_on = dev_read_bool(dev, "regulator-boot-on"); uc_pdata->boot_on = dev_read_bool(dev, "regulator-boot-on");
uc_pdata->ignore = dev_read_bool(dev, "regulator-loader-ignore");
uc_pdata->ramp_delay = dev_read_u32_default(dev, "regulator-ramp-delay", uc_pdata->ramp_delay = dev_read_u32_default(dev, "regulator-ramp-delay",
-ENODATA); -ENODATA);
node = dev_read_subnode(dev, "regulator-state-mem"); node = dev_read_subnode(dev, "regulator-state-mem");

1
include/power/regulator.h
View File

@ -178,6 +178,7 @@ struct dm_regulator_uclass_platdata {
u8 ctrl_reg; u8 ctrl_reg;
u8 volt_reg; u8 volt_reg;
bool suspend_on; bool suspend_on;
bool ignore;
u32 suspend_uV; u32 suspend_uV;
u32 ramp_delay; u32 ramp_delay;
}; };