soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap

Add MediaTek MT6380 regulator becoming one of PMIC wrapper slave
and also add extra new regmap_config of 32-bit mode for MT6380
since old regmap_config of 16-bit mode can't be fit into the need.

Signed-off-by: Chenglin Xu <chenglin.xu@mediatek.com>
Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

1 files changed, 21 insertions, 3 deletions

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index e3398e37a7a6..45c3e44d8f40 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -507,6 +507,7 @@ struct pmic_wrapper;
 struct pwrap_slv_type {
         const u32 *dew_regs;
         enum pmic_type type;
+        const struct regmap_config *regmap;
         /* Flags indicating the capability for the target slave */
         u32 caps;
         /*
@@ -1149,7 +1150,7 @@ static irqreturn_t pwrap_interrupt(int irqno, void *dev_id)
         return IRQ_HANDLED;
 }
 
-static const struct regmap_config pwrap_regmap_config = {
+static const struct regmap_config pwrap_regmap_config16 = {
         .reg_bits = 16,
         .val_bits = 16,
         .reg_stride = 2,
@@ -1158,9 +1159,19 @@ static const struct regmap_config pwrap_regmap_config = {
         .max_register = 0xffff,
 };
 
+static const struct regmap_config pwrap_regmap_config32 = {
+        .reg_bits = 32,
+        .val_bits = 32,
+        .reg_stride = 4,
+        .reg_read = pwrap_regmap_read,
+        .reg_write = pwrap_regmap_write,
+        .max_register = 0xffff,
+};
+
 static const struct pwrap_slv_type pmic_mt6323 = {
         .dew_regs = mt6323_regs,
         .type = PMIC_MT6323,
+        .regmap = &pwrap_regmap_config16,
         .caps = PWRAP_SLV_CAP_SPI | PWRAP_SLV_CAP_DUALIO |
                 PWRAP_SLV_CAP_SECURITY,
         .pwrap_read = pwrap_read16,
@@ -1170,6 +1181,7 @@ static const struct pwrap_slv_type pmic_mt6323 = {
 static const struct pwrap_slv_type pmic_mt6380 = {
         .dew_regs = NULL,
         .type = PMIC_MT6380,
+        .regmap = &pwrap_regmap_config32,
         .caps = 0,
         .pwrap_read = pwrap_read32,
         .pwrap_write = pwrap_write32,
@@ -1178,6 +1190,7 @@ static const struct pwrap_slv_type pmic_mt6380 = {
 static const struct pwrap_slv_type pmic_mt6397 = {
         .dew_regs = mt6397_regs,
         .type = PMIC_MT6397,
+        .regmap = &pwrap_regmap_config16,
         .caps = PWRAP_SLV_CAP_SPI | PWRAP_SLV_CAP_DUALIO |
                 PWRAP_SLV_CAP_SECURITY,
         .pwrap_read = pwrap_read16,
@@ -1189,9 +1202,14 @@ static const struct of_device_id of_slave_match_tbl[] = {
                 .compatible = "mediatek,mt6323",
                 .data = &pmic_mt6323,
         }, {
+                /* The MT6380 PMIC only implements a regulator, so we bind it
+                 * directly instead of using a MFD.
+                 */
+                .compatible = "mediatek,mt6380-regulator",
+                .data = &pmic_mt6380,
+        }, {
                 .compatible = "mediatek,mt6397",
                 .data = &pmic_mt6397,
-        }, {
                 /* sentinel */
         }
 };
@@ -1372,7 +1390,7 @@ static int pwrap_probe(struct platform_device *pdev)
         if (ret)
                 goto err_out2;
 
-        wrp->regmap = devm_regmap_init(wrp->dev, NULL, wrp, &pwrap_regmap_config);
+        wrp->regmap = devm_regmap_init(wrp->dev, NULL, wrp, wrp->slave->regmap);
         if (IS_ERR(wrp->regmap)) {
                 ret = PTR_ERR(wrp->regmap);
                 goto err_out2;