[PATCH v1 4/4] regulator: mtk-dvfsrc: Add support for MediaTek MT8196 DVFSRC

From: AngeloGioacchino Del Regno
Date: Mon Jun 23 2025 - 08:13:11 EST


The MediaTek MT8196 Chromebook SoC features one DVFSRC regulator
with 6 voltage steps.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
drivers/regulator/mtk-dvfsrc-regulator.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/drivers/regulator/mtk-dvfsrc-regulator.c b/drivers/regulator/mtk-dvfsrc-regulator.c
index 5bc4d85517f0..c0c9a6751c26 100644
--- a/drivers/regulator/mtk-dvfsrc-regulator.c
+++ b/drivers/regulator/mtk-dvfsrc-regulator.c
@@ -166,6 +166,24 @@ static const struct dvfsrc_regulator_pdata mt8195_data = {
.size = ARRAY_SIZE(mt8195_regulators),
};

+static const unsigned int mt8196_voltages[] = {
+ 575000,
+ 600000,
+ 650000,
+ 725000,
+ 825000,
+ 875000,
+};
+
+static const struct regulator_desc mt8196_regulators[] = {
+ MTK_DVFSRC_VREG("dvfsrc-vcore", VCORE, mt8196_voltages),
+};
+
+static const struct dvfsrc_regulator_pdata mt8196_data = {
+ .descs = mt8196_regulators,
+ .size = ARRAY_SIZE(mt8196_regulators),
+};
+
static int dvfsrc_vcore_regulator_probe(struct platform_device *pdev)
{
struct regulator_config config = { .dev = &pdev->dev };
@@ -195,6 +213,7 @@ static const struct of_device_id mtk_dvfsrc_regulator_match[] = {
{ .compatible = "mediatek,mt8183-dvfsrc-regulator", .data = &mt8183_data },
{ .compatible = "mediatek,mt8192-dvfsrc-regulator", .data = &mt6873_data },
{ .compatible = "mediatek,mt8195-dvfsrc-regulator", .data = &mt8195_data },
+ { .compatible = "mediatek,mt8196-dvfsrc-regulator", .data = &mt8196_data },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mtk_dvfsrc_regulator_match);
--
2.49.0