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mb/google/skywalker: Add API support for regulator VCN18

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Add the VNC18 regulator API for the MIPI panel usage.

BUG=b:432353024
BRANCH=skywalker
TEST=Use an oscilloscope to confirm that the regulator’s output
voltage is 1.8V.

Change-Id: Ib2065d8b4f92f4ad266976883cb2927107330a69
Signed-off-by: Niklaus Liu <niklaus.liu@mediatek.corp-partner.google.com>
Signed-off-by: Vince Liu <vince-wl.liu@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89172
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
This commit is contained in:
Vince Liu 2025-09-15 10:51:28 +08:00 • committed by Matt DeVillier
commit 1da045f6a5
1 changed files with 10 additions and 0 deletions
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10
src/mainboard/google/skywalker/regulator.c
View file

@ -17,6 +17,8 @@ static int get_mt6359p_regulator_id(enum mtk_regulator regulator)
return MT6359P_PA;
case MTK_REGULATOR_VMC:
return MT6359P_SIM1;
case MTK_REGULATOR_VCN18:
return MT6359P_VCN18;
default:
return MTK_REGULATOR_INVALID;
}
@ -45,6 +47,9 @@ void mainboard_set_regulator_voltage(enum mtk_regulator regulator, uint32_t volt
case MT6359P_SIM1:
mt6359p_set_vsim1_voltage(voltage_uv);
break;
case MT6359P_VCN18:
mt6359p_set_vcn18_voltage(voltage_uv);
break;
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
break;
@ -70,6 +75,8 @@ uint32_t mainboard_get_regulator_voltage(enum mtk_regulator regulator)
return mt6359p_buck_get_voltage(MT6359P_PA);
case MT6359P_SIM1:
return mt6359p_get_vsim1_voltage();
case MT6359P_VCN18:
return mt6359p_get_vcn18_voltage();
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
return 0;
@ -93,6 +100,9 @@ int mainboard_enable_regulator(enum mtk_regulator regulator, bool enable)
case MT6359P_SIM1:
mt6359p_enable_vsim1(enable);
break;
case MT6359P_VCN18:
mt6359p_enable_vcn18(enable);
break;
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
break;