Merge tag 'usb-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for 6.1-rc1.

  Nothing major in here, lots of little things with new devices
  supported and updates for a few drivers. Highlights include:

   - thunderbolt/USB4 devices supported a bit better than before, and
     some new ids to enable new hardware devices

   - USB gadget uvc updates for newer video formats and better v4l
     integration (the v4l portions were acked by those maintainers)

   - typec updates for tiny issues and more typec drivers for new chips.

   - xhci tiny updates for minor issues

   - big usb-serial ftdi_sio driver update to handle new devices better

   - lots of tiny dwc3 fixes and updates for the IP block that is
     showing up everywhere these days

   - dts updates for new devices being supported

   - other tiny janitorial and cleanups fixes for lots of different USB
     drivers. Full details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (169 commits)
  usb: gadget: uvc: don't put item still in use
  usb: gadget: uvc: Fix argument to sizeof() in uvc_register_video()
  usb: host: ehci-exynos: switch to using gpiod API
  Revert "usb: dwc3: Don't switch OTG -> peripheral if extcon is present"
  Revert "USB: fixup for merge issue with "usb: dwc3: Don't switch OTG -> peripheral if extcon is present""
  dt-bindings: usb: Convert FOTG210 to dt schema
  usb: mtu3: fix failed runtime suspend in host only mode
  USB: omap_udc: Fix spelling mistake: "tranceiver_ctrl" -> "transceiver_ctrl"
  usb: typec: ucsi_ccg: Disable UCSI ALT support on Tegra
  usb: typec: Replace custom implementation of device_match_fwnode()
  usb: typec: ucsi: Don't warn on probe deferral
  usb: add quirks for Lenovo OneLink+ Dock
  MAINTAINERS: switch dwc3 to Thinh
  usb: idmouse: fix an uninit-value in idmouse_open
  USB: PHY: JZ4770: Switch to use dev_err_probe() helper
  usb: phy: generic: Switch to use dev_err_probe() helper
  usb: ulpi: use DEFINE_SHOW_ATTRIBUTE to simplify ulpi_regs
  usb: cdns3: remove dead code
  usb: cdc-wdm: Use skb_put_data() instead of skb_put/memcpy pair
  usb: musb: sunxi: Switch to use dev_err_probe() helper
  ...

1 files changed, 137 insertions, 13 deletions

diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
index c1327713f06d..7b217c712c11 100644
--- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
+++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
@@ -5,6 +5,7 @@
  * Richtek RT1711H Type-C Chip Driver
  */
 
+#include <linux/bits.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
@@ -13,16 +14,27 @@
 #include <linux/usb/tcpci.h>
 #include <linux/usb/tcpm.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 
 #define RT1711H_VID		0x29CF
 #define RT1711H_PID		0x1711
+#define RT1711H_DID		0x2171
+#define RT1715_DID		0x2173
 
-#define RT1711H_RTCTRL8		0x9B
+#define RT1711H_PHYCTRL1	0x80
+#define RT1711H_PHYCTRL2	0x81
+
+#define RT1711H_RTCTRL4		0x93
+/* rx threshold of rd/rp: 1b0 for level 0.4V/0.7V, 1b1 for 0.35V/0.75V */
+#define RT1711H_BMCIO_RXDZSEL	BIT(0)
 
+#define RT1711H_RTCTRL8		0x9B
 /* Autoidle timeout = (tout * 2 + 1) * 6.4ms */
 #define RT1711H_RTCTRL8_SET(ck300, ship_off, auto_idle, tout) \
 			    (((ck300) << 7) | ((ship_off) << 5) | \
 			    ((auto_idle) << 3) | ((tout) & 0x07))
+#define RT1711H_AUTOIDLEEN	BIT(3)
+#define RT1711H_ENEXTMSG	BIT(4)
 
 #define RT1711H_RTCTRL11	0x9E
 
@@ -35,10 +47,17 @@
 #define RT1711H_RTCTRL15	0xA2
 #define RT1711H_RTCTRL16	0xA3
 
+#define RT1711H_RTCTRL18	0xAF
+/* 1b0 as fixed rx threshold of rd/rp 0.55V, 1b1 depends on RTCRTL4[0] */
+#define BMCIO_RXDZEN	BIT(0)
+
 struct rt1711h_chip {
 	struct tcpci_data data;
 	struct tcpci *tcpci;
 	struct device *dev;
+	struct regulator *vbus;
+	bool src_en;
+	u16 did;
 };
 
 static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val)
@@ -75,8 +94,9 @@ 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,
@@ -84,6 +104,14 @@ 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, RT1711H_ENEXTMSG);
+		if (ret < 0)
+			return ret;
+	}
+
 	/* I2C reset : (val + 1) * 12.5ms */
 	ret = rt1711h_write8(chip, RT1711H_RTCTRL11,
 			     RT1711H_RTCTRL11_SET(1, 0x0F));
@@ -101,7 +129,37 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata)
 		return ret;
 
 	/* dcSRC.DRP : 33% */
-	return rt1711h_write16(chip, RT1711H_RTCTRL16, 330);
+	ret = rt1711h_write16(chip, RT1711H_RTCTRL16, 330);
+	if (ret < 0)
+		return ret;
+
+	/* Enable phy discard retry, retry count 7, rx filter deglitch 100 us */
+	ret = rt1711h_write8(chip, RT1711H_PHYCTRL1, 0xF1);
+	if (ret < 0)
+		return ret;
+
+	/* Decrease wait time of BMC-encoded 1 bit from 2.67us to 2.55us */
+	/* wait time : (val * .4167) us */
+	return rt1711h_write8(chip, RT1711H_PHYCTRL2, 62);
+}
+
+static int rt1711h_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata,
+			    bool src, bool snk)
+{
+	struct rt1711h_chip *chip = tdata_to_rt1711h(tdata);
+	int ret;
+
+	if (chip->src_en == src)
+		return 0;
+
+	if (src)
+		ret = regulator_enable(chip->vbus);
+	else
+		ret = regulator_disable(chip->vbus);
+
+	if (!ret)
+		chip->src_en = src;
+	return ret;
 }
 
 static int rt1711h_set_vconn(struct tcpci *tcpci, struct tcpci_data *tdata,
@@ -109,8 +167,55 @@ static int rt1711h_set_vconn(struct tcpci *tcpci, struct tcpci_data *tdata,
 {
 	struct rt1711h_chip *chip = tdata_to_rt1711h(tdata);
 
-	return rt1711h_write8(chip, RT1711H_RTCTRL8,
-			      RT1711H_RTCTRL8_SET(0, 1, !enable, 2));
+	return regmap_update_bits(chip->data.regmap, RT1711H_RTCTRL8,
+				  RT1711H_AUTOIDLEEN, enable ? 0 : RT1711H_AUTOIDLEEN);
+}
+
+/*
+ * Selects the CC PHY noise filter voltage level according to the remote current
+ * CC voltage level.
+ *
+ * @status: The port's current cc status read from IC
+ * Return 0 if writes succeed; failure code otherwise
+ */
+static inline int rt1711h_init_cc_params(struct rt1711h_chip *chip, u8 status)
+{
+	int ret, cc1, cc2;
+	u8 role = 0;
+	u32 rxdz_en, rxdz_sel;
+
+	ret = rt1711h_read8(chip, TCPC_ROLE_CTRL, &role);
+	if (ret < 0)
+		return ret;
+
+	cc1 = tcpci_to_typec_cc((status >> TCPC_CC_STATUS_CC1_SHIFT) &
+				TCPC_CC_STATUS_CC1_MASK,
+				status & TCPC_CC_STATUS_TERM ||
+				tcpc_presenting_rd(role, CC1));
+	cc2 = tcpci_to_typec_cc((status >> TCPC_CC_STATUS_CC2_SHIFT) &
+				TCPC_CC_STATUS_CC2_MASK,
+				status & TCPC_CC_STATUS_TERM ||
+				tcpc_presenting_rd(role, CC2));
+
+	if ((cc1 >= TYPEC_CC_RP_1_5 && cc2 < TYPEC_CC_RP_DEF) ||
+	    (cc2 >= TYPEC_CC_RP_1_5 && cc1 < TYPEC_CC_RP_DEF)) {
+		rxdz_en = BMCIO_RXDZEN;
+		if (chip->did == RT1715_DID)
+			rxdz_sel = RT1711H_BMCIO_RXDZSEL;
+		else
+			rxdz_sel = 0;
+	} else {
+		rxdz_en = 0;
+		rxdz_sel = RT1711H_BMCIO_RXDZSEL;
+	}
+
+	ret = regmap_update_bits(chip->data.regmap, RT1711H_RTCTRL18,
+				 BMCIO_RXDZEN, rxdz_en);
+	if (ret < 0)
+		return ret;
+
+	return regmap_update_bits(chip->data.regmap, RT1711H_RTCTRL4,
+				  RT1711H_BMCIO_RXDZSEL, rxdz_sel);
 }
 
 static int rt1711h_start_drp_toggling(struct tcpci *tcpci,
@@ -173,6 +278,8 @@ static irqreturn_t rt1711h_irq(int irq, void *dev_id)
 		/* Clear cc change event triggered by starting toggling */
 		if (status & TCPC_CC_STATUS_TOGGLING)
 			rt1711h_write8(chip, TCPC_ALERT, TCPC_ALERT_CC_STATUS);
+		else
+			rt1711h_init_cc_params(chip, status);
 	}
 
 out:
@@ -191,7 +298,7 @@ static int rt1711h_sw_reset(struct rt1711h_chip *chip)
 	return 0;
 }
 
-static int rt1711h_check_revision(struct i2c_client *i2c)
+static int rt1711h_check_revision(struct i2c_client *i2c, struct rt1711h_chip *chip)
 {
 	int ret;
 
@@ -209,7 +316,15 @@ 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;
+	if (ret != chip->did) {
+		dev_err(&i2c->dev, "did is not correct, 0x%04x\n", ret);
+		return -ENODEV;
+	}
+	dev_dbg(&i2c->dev, "did is 0x%04x\n", ret);
+	return ret;
 }
 
 static int rt1711h_probe(struct i2c_client *client,
@@ -218,16 +333,18 @@ static int rt1711h_probe(struct i2c_client *client,
 	int ret;
 	struct rt1711h_chip *chip;
 
-	ret = rt1711h_check_revision(client);
+	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->did = (size_t)device_get_match_data(&client->dev);
+
+	ret = rt1711h_check_revision(client, chip);
 	if (ret < 0) {
 		dev_err(&client->dev, "check vid/pid fail\n");
 		return ret;
 	}
 
-	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
-	if (!chip)
-		return -ENOMEM;
-
 	chip->data.regmap = devm_regmap_init_i2c(client,
 						 &rt1711h_regmap_config);
 	if (IS_ERR(chip->data.regmap))
@@ -245,7 +362,12 @@ static int rt1711h_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	chip->vbus = devm_regulator_get(&client->dev, "vbus");
+	if (IS_ERR(chip->vbus))
+		return PTR_ERR(chip->vbus);
+
 	chip->data.init = rt1711h_init;
+	chip->data.set_vbus = rt1711h_set_vbus;
 	chip->data.set_vconn = rt1711h_set_vconn;
 	chip->data.start_drp_toggling = rt1711h_start_drp_toggling;
 	chip->tcpci = tcpci_register_port(chip->dev, &chip->data);
@@ -272,13 +394,15 @@ static void rt1711h_remove(struct i2c_client *client)
 
 static const struct i2c_device_id rt1711h_id[] = {
 	{ "rt1711h", 0 },
+	{ "rt1715", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, rt1711h_id);
 
 #ifdef CONFIG_OF
 static const struct of_device_id rt1711h_of_match[] = {
-	{ .compatible = "richtek,rt1711h", },
+	{ .compatible = "richtek,rt1711h", .data = (void *)RT1711H_DID },
+	{ .compatible = "richtek,rt1715", .data = (void *)RT1715_DID },
 	{},
 };
 MODULE_DEVICE_TABLE(of, rt1711h_of_match);