linux-kernel - [PATCH v2 5/6] usb: typec: tcpci_rt1711h: Add compatible id with rt1715

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Date:   Thu, 21 Jul 2022 14:11:43 +0800
From:   Gene Chen <gene.chen.richtek@...il.com>
To:     linux@...ck-us.net, heikki.krogerus@...ux.intel.com,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, gene_chen@...htek.com,
        cy_huang@...htek.com
Subject: [PATCH v2 5/6] usb: typec: tcpci_rt1711h: Add compatible id with rt1715

From: Gene Chen <gene_chen@...htek.com>

Add compatible id with rt1715, and add initial setting for
specific support PD30 command.

Signed-off-by: Gene Chen <gene_chen@...htek.com>
---
 drivers/usb/typec/tcpm/tcpci_rt1711h.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
index e65b568959e9..3316dfaeee0d 100644
--- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
+++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
@@ -17,6 +17,7 @@
 
 #define RT1711H_VID		0x29CF
 #define RT1711H_PID		0x1711
+#define RT1715_DID		0x2173
 
 #define RT1711H_PHYCTRL1	0x80
 #define RT1711H_PHYCTRL2	0x81
@@ -28,6 +29,7 @@
 			    (((ck300) << 7) | ((ship_off) << 5) | \
 			    ((auto_idle) << 3) | ((tout) & 0x07))
 #define RT1711H_AUTOIDLEEN_MASK	BIT(3)
+#define RT1711H_ENEXTMSG_MASK	BIT(4)
 
 #define RT1711H_RTCTRL11	0x9E
 
@@ -46,6 +48,7 @@ struct rt1711h_chip {
 	struct device *dev;
 	struct regulator *vbus;
 	bool src_en;
+	u16 did;
 };
 
 static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val)
@@ -82,8 +85,9 @@ static struct rt1711h_chip *tdata_to_rt1711h(struct tcpci_data *tdata)
 
 static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata)
 {
-	int ret;
 	struct rt1711h_chip *chip = tdata_to_rt1711h(tdata);
+	struct regmap *regmap = chip->data.regmap;
+	int ret;
 
 	/* CK 300K from 320K, shipping off, auto_idle enable, tout = 32ms */
 	ret = rt1711h_write8(chip, RT1711H_RTCTRL8,
@@ -91,6 +95,14 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata)
 	if (ret < 0)
 		return ret;
 
+	/* Enable PD30 extended message for RT1715 */
+	if (chip->did == RT1715_DID) {
+		ret = regmap_update_bits(regmap, RT1711H_RTCTRL8,
+					 RT1711H_ENEXTMSG_MASK, 0xFF);
+		if (ret < 0)
+			return ret;
+	}
+
 	/* I2C reset : (val + 1) * 12.5ms */
 	ret = rt1711h_write8(chip, RT1711H_RTCTRL11,
 			     RT1711H_RTCTRL11_SET(1, 0x0F));
@@ -246,7 +258,11 @@ static int rt1711h_check_revision(struct i2c_client *i2c)
 		dev_err(&i2c->dev, "pid is not correct, 0x%04x\n", ret);
 		return -ENODEV;
 	}
-	return 0;
+	ret = i2c_smbus_read_word_data(i2c, TCPC_BCD_DEV);
+	if (ret < 0)
+		return ret;
+	dev_info(&i2c->dev, "did is 0x%04x\n", ret);
+	return ret;
 }
 
 static int rt1711h_probe(struct i2c_client *client,
@@ -265,6 +281,8 @@ static int rt1711h_probe(struct i2c_client *client,
 	if (!chip)
 		return -ENOMEM;
 
+	chip->did = ret;
+
 	chip->data.regmap = devm_regmap_init_i2c(client,
 						 &rt1711h_regmap_config);
 	if (IS_ERR(chip->data.regmap))
@@ -315,6 +333,7 @@ static int rt1711h_remove(struct i2c_client *client)
 
 static const struct i2c_device_id rt1711h_id[] = {
 	{ "rt1711h", 0 },
+	{ "rt1715", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, rt1711h_id);
@@ -322,6 +341,7 @@ MODULE_DEVICE_TABLE(i2c, rt1711h_id);
 #ifdef CONFIG_OF
 static const struct of_device_id rt1711h_of_match[] = {
 	{ .compatible = "richtek,rt1711h", },
+	{ .compatible = "richtek,rt1715", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, rt1711h_of_match);
-- 
2.25.1