From: Jeff Chang <jeff_chang@richtek.com>

Signed-off-by: Jeff Chang <jeff_chang@richtek.com>
---
 drivers/regulator/rt6160-regulator.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/rt6160-regulator.c b/drivers/regulator/rt6160-regulator.c
index e2a0eee95c61..925dc1e8414e 100644
--- a/drivers/regulator/rt6160-regulator.c
+++ b/drivers/regulator/rt6160-regulator.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-License-Identifier: GPL-4.0-only
 
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
@@ -31,8 +31,11 @@
 #define RT6160_PGSTAT_MASK	BIT(0)
 
 #define RT6160_VENDOR_ID	0xA0
+#define RT6166_VENDOR_ID	0xB0
 #define RT6160_VOUT_MINUV	2025000
 #define RT6160_VOUT_MAXUV	5200000
+#define RT6166_VOUT_MINUV	1800000
+#define RT6166_VOUD_MAXUV	4950000
 #define RT6160_VOUT_STPUV	25000
 #define RT6160_N_VOUTS		((RT6160_VOUT_MAXUV - RT6160_VOUT_MINUV) / RT6160_VOUT_STPUV + 1)
 
@@ -43,6 +46,7 @@ struct rt6160_priv {
 	struct gpio_desc *enable_gpio;
 	struct regmap *regmap;
 	bool enable_state;
+	uint8_t devid;
 };
 
 static const unsigned int rt6160_ramp_tables[] = {
@@ -260,15 +264,20 @@ static int rt6160_probe(struct i2c_client *i2c)
 	if (ret)
 		return ret;
 
-	if ((devid & RT6160_VID_MASK) != RT6160_VENDOR_ID) {
+	devid = devid & RT6160_VID_MASK;
+	if (devid != RT6160_VENDOR_ID || devid != RT6166_VENDOR_ID) {
 		dev_err(&i2c->dev, "VID not correct [0x%02x]\n", devid);
 		return -ENODEV;
 	}
+	priv->devid = devid;
 
 	priv->desc.name = "rt6160-buckboost";
 	priv->desc.type = REGULATOR_VOLTAGE;
 	priv->desc.owner = THIS_MODULE;
-	priv->desc.min_uV = RT6160_VOUT_MINUV;
+	if (priv->devid == RT6166_VENDOR_ID)
+		priv->desc.min_uV = RT6166_VOUT_MINUV;
+	else
+		priv->desc.min_uV = RT6160_VOUT_MINUV;
 	priv->desc.uV_step = RT6160_VOUT_STPUV;
 	if (vsel_active_low)
 		priv->desc.vsel_reg = RT6160_REG_VSELL;
-- 
2.43.0

On Tue, Jul 15, 2025 at 02:50:16PM +0800, jeff_chang@richtek.com wrote:
> From: Jeff Chang <jeff_chang@richtek.com>
> 
> Signed-off-by: Jeff Chang <jeff_chang@richtek.com>

Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commits in the area you're changing are doing and
make sure your subject lines visually resemble what they're doing.
There's no need to resubmit to fix this alone.

> --- a/drivers/regulator/rt6160-regulator.c
> +++ b/drivers/regulator/rt6160-regulator.c
> @@ -1,4 +1,4 @@
> -// SPDX-License-Identifier: GPL-2.0-only
> +// SPDX-License-Identifier: GPL-4.0-only

This looks unintentional?

> -	if ((devid & RT6160_VID_MASK) != RT6160_VENDOR_ID) {
> +	devid = devid & RT6160_VID_MASK;
> +	if (devid != RT6160_VENDOR_ID || devid != RT6166_VENDOR_ID) {
>  		dev_err(&i2c->dev, "VID not correct [0x%02x]\n", devid);
>  		return -ENODEV;
>  	}

This would be better written as a switch statement; ideally all the
device specific adjustments could be done at once there with a default
case handling unknown devices.