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soc/mediatek: Add support for regulator VIO18 

To provide power to MIPI panel STA_HIMAX83102_J02, add support for
regulator VIO18.

BUG=b:272425116
TEST=test firmware display pass for STA_HIMAX83102_J02 on Starmie.

Change-Id: I3c3aa105e648b87fc39f881d762002f67b4422b5
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74341
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
This commit is contained in:
Cong Yang 2023-04-11 20:10:59 +08:00 committed by Felix Held
parent 36e6f9bc04
commit de7e014067
3 changed files with 21 additions and 0 deletions
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1
src/soc/mediatek/common/include/soc/regulator.h
View File

@ -23,6 +23,7 @@ enum mtk_regulator {
MTK_REGULATOR_VRF12,
MTK_REGULATOR_VCN33,
MTK_REGULATOR_VDD18,
MTK_REGULATOR_VIO18,
MTK_REGULATOR_NUM,
};

2
src/soc/mediatek/mt8186/include/soc/mt6366.h
View File

@ -39,6 +39,7 @@ enum {
PMIC_VDRAM1_DBG0 = 0x161e,
PMIC_VDRAM1_VOSEL = 0x1626,
PMIC_SMPS_ANA_CON0 = 0x1808,
PMIC_LDO_VIO18_CON0 = 0x1aec,
PMIC_VDDQ_OP_EN = 0x1b16,
PMIC_VSRAM_PROC12_OP_EN = 0x1b90,
PMIC_VSRAM_PROC12_DBG0 = 0x1ba2,
@ -67,6 +68,7 @@ enum mt6366_regulator_id {
MT6366_VSRAM_PROC12,
MT6366_VRF12,
MT6366_VCN33,
MT6366_VIO18,
MT6366_REGULATOR_NUM,
};

18
src/soc/mediatek/mt8186/mt6366.c
View File

@ -787,6 +787,19 @@ static void pmic_set_vcn33_vol(u32 vcn33_uv)
pwrap_write_field(PMIC_LDO_VCN33_CON0_0, 1, 0x1, 0);
}
#define VIO18_VOLTAGE_UV 1800000
static u32 pmic_get_vio18_vol(void)
{
return pwrap_read_field(PMIC_LDO_VIO18_CON0, 0x1, 0) ? VIO18_VOLTAGE_UV : 0;
}
static void pmic_set_vio18_vol(u32 vio18_uv)
{
assert(vio18_uv == VIO18_VOLTAGE_UV);
pwrap_write_field(PMIC_LDO_VIO18_CON0, 1, 0x1, 0);
}
static void pmic_wdt_set(void)
{
/* [5]=1, RG_WDTRSTB_DEB */
@ -914,6 +927,9 @@ void mt6366_set_voltage(enum mt6366_regulator_id id, u32 voltage_uv)
case MT6366_VCN33:
pmic_set_vcn33_vol(voltage_uv);
break;
case MT6366_VIO18:
pmic_set_vio18_vol(voltage_uv);
break;
default:
printk(BIOS_ERR, "%s: PMIC %d is not supported\n", __func__, id);
break;
@ -941,6 +957,8 @@ u32 mt6366_get_voltage(enum mt6366_regulator_id id)
return pmic_get_vrf12_vol();
case MT6366_VCN33:
return pmic_get_vcn33_vol();
case MT6366_VIO18:
return pmic_get_vio18_vol();
default:
printk(BIOS_ERR, "%s: PMIC %d is not supported\n", __func__, id);
break;