Merge tag 'usb-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small fixes for reported issues with some USB drivers.
  They include:

   - xhci fixes for xhci-mtk platform driver

   - typec driver fixes for reported problems.

   - cdc-wdm read-stuck fix

   - gadget driver fix for reported race condition

   - new usb-serial driver ids

  All of these have been in linux-next with no reported problems"

* tag 'usb-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: xhci-mtk: remove bandwidth budget table
  usb: xhci-mtk: fix fs isoc's transfer error
  usb: gadget: fix race when gadget driver register via ioctl
  usb: typec: tcpci_mt6360: Update for BMC PHY setting
  usb: gadget: uvc: allow for application to cleanly shutdown
  usb: typec: tcpci: Don't skip cleanup in .remove() on error
  usb: cdc-wdm: fix reading stuck on device close
  USB: serial: qcserial: add support for Sierra Wireless EM7590
  USB: serial: option: add Fibocom MA510 modem
  USB: serial: option: add Fibocom L610 modem
  USB: serial: pl2303: add device id for HP LM930 Display

drivers/usb/class/cdc-wdm.c

@@ -774,6 +774,7 @@ static int wdm_release(struct inode *inode, struct file *file)
 			poison_urbs(desc);
 			spin_lock_irq(&desc->iuspin);
 			desc->resp_count = 0;
+			clear_bit(WDM_RESPONDING, &desc->flags);
 			spin_unlock_irq(&desc->iuspin);
 			desc->manage_power(desc->intf, 0);
 			unpoison_urbs(desc);

drivers/usb/gadget/function/f_uvc.c

@@ -890,13 +890,37 @@ static void uvc_function_unbind(struct usb_configuration *c,
 {
 	struct usb_composite_dev *cdev = c->cdev;
 	struct uvc_device *uvc = to_uvc(f);
+	long wait_ret = 1;
 
 	uvcg_info(f, "%s()\n", __func__);
 
+	/* If we know we're connected via v4l2, then there should be a cleanup
+	 * of the device from userspace either via UVC_EVENT_DISCONNECT or
+	 * though the video device removal uevent. Allow some time for the
+	 * application to close out before things get deleted.
+	 */
+	if (uvc->func_connected) {
+		uvcg_dbg(f, "waiting for clean disconnect\n");
+		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,
+				uvc->func_connected == false, msecs_to_jiffies(500));
+		uvcg_dbg(f, "done waiting with ret: %ld\n", wait_ret);
+	}
+
 	device_remove_file(&uvc->vdev.dev, &dev_attr_function_name);
 	video_unregister_device(&uvc->vdev);
 	v4l2_device_unregister(&uvc->v4l2_dev);
 
+	if (uvc->func_connected) {
+		/* Wait for the release to occur to ensure there are no longer any
+		 * pending operations that may cause panics when resources are cleaned
+		 * up.
+		 */
+		uvcg_warn(f, "%s no clean disconnect, wait for release\n", __func__);
+		wait_ret = wait_event_interruptible_timeout(uvc->func_connected_queue,
+				uvc->func_connected == false, msecs_to_jiffies(1000));
+		uvcg_dbg(f, "done waiting for release with ret: %ld\n", wait_ret);
+	}
+
 	usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
 	kfree(uvc->control_buf);
 
@@ -915,6 +939,7 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
 
 	mutex_init(&uvc->video.mutex);
 	uvc->state = UVC_STATE_DISCONNECTED;
+	init_waitqueue_head(&uvc->func_connected_queue);
 	opts = fi_to_f_uvc_opts(fi);
 
 	mutex_lock(&opts->lock);

drivers/usb/gadget/function/uvc.h

@@ -14,6 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/usb/composite.h>
 #include <linux/videodev2.h>
+#include <linux/wait.h>
 
 #include <media/v4l2-device.h>
 #include <media/v4l2-dev.h>
@@ -129,6 +130,7 @@ struct uvc_device {
 	struct usb_function func;
 	struct uvc_video video;
 	bool func_connected;
+	wait_queue_head_t func_connected_queue;
 
 	/* Descriptors */
 	struct {

drivers/usb/gadget/function/uvc_v4l2.c

@@ -253,10 +253,11 @@ uvc_v4l2_subscribe_event(struct v4l2_fh *fh,
 
 static void uvc_v4l2_disable(struct uvc_device *uvc)
 {
-	uvc->func_connected = false;
 	uvc_function_disconnect(uvc);
 	uvcg_video_enable(&uvc->video, 0);
 	uvcg_free_buffers(&uvc->video.queue);
+	uvc->func_connected = false;
+	wake_up_interruptible(&uvc->func_connected_queue);
 }
 
 static int

drivers/usb/gadget/legacy/raw_gadget.c

@@ -145,6 +145,7 @@ enum dev_state {
 	STATE_DEV_INVALID = 0,
 	STATE_DEV_OPENED,
 	STATE_DEV_INITIALIZED,
+	STATE_DEV_REGISTERING,
 	STATE_DEV_RUNNING,
 	STATE_DEV_CLOSED,
 	STATE_DEV_FAILED
@@ -508,6 +509,7 @@ static int raw_ioctl_run(struct raw_dev *dev, unsigned long value)
 		ret = -EINVAL;
 		goto out_unlock;
 	}
+	dev->state = STATE_DEV_REGISTERING;
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	ret = usb_gadget_probe_driver(&dev->driver);

drivers/usb/host/xhci-mtk-sch.c

@@ -19,11 +19,6 @@
 #define HS_BW_BOUNDARY	6144
 /* usb2 spec section11.18.1: at most 188 FS bytes per microframe */
 #define FS_PAYLOAD_MAX 188
-/*
- * max number of microframes for split transfer,
- * for fs isoc in : 1 ss + 1 idle + 7 cs
- */
-#define TT_MICROFRAMES_MAX 9
 
 #define DBG_BUF_EN	64
 
@@ -242,28 +237,17 @@ static void drop_tt(struct usb_device *udev)
 
 static struct mu3h_sch_ep_info *
 create_sch_ep(struct xhci_hcd_mtk *mtk, struct usb_device *udev,
-	      struct usb_host_endpoint *ep, struct xhci_ep_ctx *ep_ctx)
+	      struct usb_host_endpoint *ep)
 {
 	struct mu3h_sch_ep_info *sch_ep;
 	struct mu3h_sch_bw_info *bw_info;
 	struct mu3h_sch_tt *tt = NULL;
-	u32 len_bw_budget_table;
 
 	bw_info = get_bw_info(mtk, udev, ep);
 	if (!bw_info)
 		return ERR_PTR(-ENODEV);
 
-	if (is_fs_or_ls(udev->speed))
-		len_bw_budget_table = TT_MICROFRAMES_MAX;
-	else if ((udev->speed >= USB_SPEED_SUPER)
-			&& usb_endpoint_xfer_isoc(&ep->desc))
-		len_bw_budget_table = get_esit(ep_ctx);
-	else
-		len_bw_budget_table = 1;
-
-	sch_ep = kzalloc(struct_size(sch_ep, bw_budget_table,
-				     len_bw_budget_table),
-			 GFP_KERNEL);
+	sch_ep = kzalloc(sizeof(*sch_ep), GFP_KERNEL);
 	if (!sch_ep)
 		return ERR_PTR(-ENOMEM);
 
@@ -295,8 +279,6 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 	u32 mult;
 	u32 esit_pkts;
 	u32 max_esit_payload;
-	u32 *bwb_table = sch_ep->bw_budget_table;
-	int i;
 
 	ep_type = CTX_TO_EP_TYPE(le32_to_cpu(ep_ctx->ep_info2));
 	maxpkt = MAX_PACKET_DECODED(le32_to_cpu(ep_ctx->ep_info2));
@@ -332,7 +314,6 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 		 */
 		sch_ep->pkts = max_burst + 1;
 		sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
-		bwb_table[0] = sch_ep->bw_cost_per_microframe;
 	} else if (sch_ep->speed >= USB_SPEED_SUPER) {
 		/* usb3_r1 spec section4.4.7 & 4.4.8 */
 		sch_ep->cs_count = 0;
@@ -349,7 +330,6 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 		if (ep_type == INT_IN_EP || ep_type == INT_OUT_EP) {
 			sch_ep->pkts = esit_pkts;
 			sch_ep->num_budget_microframes = 1;
-			bwb_table[0] = maxpkt * sch_ep->pkts;
 		}
 
 		if (ep_type == ISOC_IN_EP || ep_type == ISOC_OUT_EP) {
@@ -366,15 +346,8 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 				DIV_ROUND_UP(esit_pkts, sch_ep->pkts);
 
 			sch_ep->repeat = !!(sch_ep->num_budget_microframes > 1);
-			sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
-
-			for (i = 0; i < sch_ep->num_budget_microframes - 1; i++)
-				bwb_table[i] = sch_ep->bw_cost_per_microframe;
-
-			/* last one <= bw_cost_per_microframe */
-			bwb_table[i] = maxpkt * esit_pkts
-				       - i * sch_ep->bw_cost_per_microframe;
 		}
+		sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
 	} else if (is_fs_or_ls(sch_ep->speed)) {
 		sch_ep->pkts = 1; /* at most one packet for each microframe */
 
@@ -384,28 +357,7 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 		 */
 		sch_ep->cs_count = DIV_ROUND_UP(maxpkt, FS_PAYLOAD_MAX);
 		sch_ep->num_budget_microframes = sch_ep->cs_count;
-		sch_ep->bw_cost_per_microframe =
-			(maxpkt < FS_PAYLOAD_MAX) ? maxpkt : FS_PAYLOAD_MAX;
-
-		/* init budget table */
-		if (ep_type == ISOC_OUT_EP) {
-			for (i = 0; i < sch_ep->num_budget_microframes; i++)
-				bwb_table[i] =	sch_ep->bw_cost_per_microframe;
-		} else if (ep_type == INT_OUT_EP) {
-			/* only first one consumes bandwidth, others as zero */
-			bwb_table[0] = sch_ep->bw_cost_per_microframe;
-		} else { /* INT_IN_EP or ISOC_IN_EP */
-			bwb_table[0] = 0; /* start split */
-			bwb_table[1] = 0; /* idle */
-			/*
-			 * due to cs_count will be updated according to cs
-			 * position, assign all remainder budget array
-			 * elements as @bw_cost_per_microframe, but only first
-			 * @num_budget_microframes elements will be used later
-			 */
-			for (i = 2; i < TT_MICROFRAMES_MAX; i++)
-				bwb_table[i] =	sch_ep->bw_cost_per_microframe;
-		}
+		sch_ep->bw_cost_per_microframe = min_t(u32, maxpkt, FS_PAYLOAD_MAX);
 	}
 }
 
@@ -422,7 +374,7 @@ static u32 get_max_bw(struct mu3h_sch_bw_info *sch_bw,
 
 		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
 			k = XHCI_MTK_BW_INDEX(base + j);
-			bw = sch_bw->bus_bw[k] + sch_ep->bw_budget_table[j];
+			bw = sch_bw->bus_bw[k] + sch_ep->bw_cost_per_microframe;
 			if (bw > max_bw)
 				max_bw = bw;
 		}
@@ -433,18 +385,16 @@ static u32 get_max_bw(struct mu3h_sch_bw_info *sch_bw,
 static void update_bus_bw(struct mu3h_sch_bw_info *sch_bw,
 	struct mu3h_sch_ep_info *sch_ep, bool used)
 {
+	int bw_updated;
 	u32 base;
-	int i, j, k;
+	int i, j;
+
+	bw_updated = sch_ep->bw_cost_per_microframe * (used ? 1 : -1);
 
 	for (i = 0; i < sch_ep->num_esit; i++) {
 		base = sch_ep->offset + i * sch_ep->esit;
-		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
-			k = XHCI_MTK_BW_INDEX(base + j);
-			if (used)
-				sch_bw->bus_bw[k] += sch_ep->bw_budget_table[j];
-			else
-				sch_bw->bus_bw[k] -= sch_ep->bw_budget_table[j];
-		}
+		for (j = 0; j < sch_ep->num_budget_microframes; j++)
+			sch_bw->bus_bw[XHCI_MTK_BW_INDEX(base + j)] += bw_updated;
 	}
 }
 
@@ -464,7 +414,7 @@ static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
 		 */
 		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
 			k = XHCI_MTK_BW_INDEX(base + j);
-			tmp = tt->fs_bus_bw[k] + sch_ep->bw_budget_table[j];
+			tmp = tt->fs_bus_bw[k] + sch_ep->bw_cost_per_microframe;
 			if (tmp > FS_PAYLOAD_MAX)
 				return -ESCH_BW_OVERFLOW;
 		}
@@ -538,19 +488,17 @@ static int check_sch_tt(struct mu3h_sch_ep_info *sch_ep, u32 offset)
 static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
 {
 	struct mu3h_sch_tt *tt = sch_ep->sch_tt;
+	int bw_updated;
 	u32 base;
-	int i, j, k;
+	int i, j;
+
+	bw_updated = sch_ep->bw_cost_per_microframe * (used ? 1 : -1);
 
 	for (i = 0; i < sch_ep->num_esit; i++) {
 		base = sch_ep->offset + i * sch_ep->esit;
 
-		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
-			k = XHCI_MTK_BW_INDEX(base + j);
-			if (used)
-				tt->fs_bus_bw[k] += sch_ep->bw_budget_table[j];
-			else
-				tt->fs_bus_bw[k] -= sch_ep->bw_budget_table[j];
-		}
+		for (j = 0; j < sch_ep->num_budget_microframes; j++)
+			tt->fs_bus_bw[XHCI_MTK_BW_INDEX(base + j)] += bw_updated;
 	}
 
 	if (used)
@@ -710,7 +658,7 @@ static int add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 
 	xhci_dbg(xhci, "%s %s\n", __func__, decode_ep(ep, udev->speed));
 
-	sch_ep = create_sch_ep(mtk, udev, ep, ep_ctx);
+	sch_ep = create_sch_ep(mtk, udev, ep);
 	if (IS_ERR_OR_NULL(sch_ep))
 		return -ENOMEM;
 

drivers/usb/host/xhci-mtk.h

@@ -83,7 +83,6 @@ struct mu3h_sch_bw_info {
  *		times; 1: distribute the (bMaxBurst+1)*(Mult+1) packets
  *		according to @pkts and @repeat. normal mode is used by
  *		default
- * @bw_budget_table: table to record bandwidth budget per microframe
  */
 struct mu3h_sch_ep_info {
 	u32 esit;
@@ -109,7 +108,6 @@ struct mu3h_sch_ep_info {
 	u32 pkts;
 	u32 cs_count;
 	u32 burst_mode;
-	u32 bw_budget_table[];
 };
 
 #define MU3C_U3_PORT_MAX 4

drivers/usb/serial/option.c

@@ -2123,10 +2123,14 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = RSVD(3) },
 	{ USB_DEVICE(0x1508, 0x1001),						/* Fibocom NL668 (IOT version) */
 	  .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
+	{ USB_DEVICE(0x1782, 0x4d10) },						/* Fibocom L610 (AT mode) */
+	{ USB_DEVICE_INTERFACE_CLASS(0x1782, 0x4d11, 0xff) },			/* Fibocom L610 (ECM/RNDIS mode) */
 	{ USB_DEVICE(0x2cb7, 0x0104),						/* Fibocom NL678 series */
 	  .driver_info = RSVD(4) | RSVD(5) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff),			/* Fibocom NL678 series */
 	  .driver_info = RSVD(6) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0106, 0xff) },			/* Fibocom MA510 (ECM mode w/ diag intf.) */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x010a, 0xff) },			/* Fibocom MA510 (ECM mode) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0xff, 0x30) },	/* Fibocom FG150 Diag */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0, 0) },		/* Fibocom FG150 AT */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a0, 0xff) },			/* Fibocom NL668-AM/NL652-EU (laptop MBIM) */

drivers/usb/serial/pl2303.c

@@ -106,6 +106,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LCM220_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LCM960_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LM920_PRODUCT_ID) },
+	{ USB_DEVICE(HP_VENDOR_ID, HP_LM930_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_LM940_PRODUCT_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_TD620_PRODUCT_ID) },
 	{ USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) },

drivers/usb/serial/pl2303.h

@@ -135,6 +135,7 @@
 #define HP_TD620_PRODUCT_ID	0x0956
 #define HP_LD960_PRODUCT_ID	0x0b39
 #define HP_LD381_PRODUCT_ID	0x0f7f
+#define HP_LM930_PRODUCT_ID	0x0f9b
 #define HP_LCM220_PRODUCT_ID	0x3139
 #define HP_LCM960_PRODUCT_ID	0x3239
 #define HP_LD220_PRODUCT_ID	0x3524

drivers/usb/serial/qcserial.c

@@ -166,6 +166,8 @@ static const struct usb_device_id id_table[] = {
 	{DEVICE_SWI(0x1199, 0x9090)},	/* Sierra Wireless EM7565 QDL */
 	{DEVICE_SWI(0x1199, 0x9091)},	/* Sierra Wireless EM7565 */
 	{DEVICE_SWI(0x1199, 0x90d2)},	/* Sierra Wireless EM9191 QDL */
+	{DEVICE_SWI(0x1199, 0xc080)},	/* Sierra Wireless EM7590 QDL */
+	{DEVICE_SWI(0x1199, 0xc081)},	/* Sierra Wireless EM7590 */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */

drivers/usb/typec/tcpm/tcpci.c

@@ -877,7 +877,7 @@ static int tcpci_remove(struct i2c_client *client)
 	/* Disable chip interrupts before unregistering port */
 	err = tcpci_write16(chip->tcpci, TCPC_ALERT_MASK, 0);
 	if (err < 0)
-		return err;
+		dev_warn(&client->dev, "Failed to disable irqs (%pe)\n", ERR_PTR(err));
 
 	tcpci_unregister_port(chip->tcpci);
 

drivers/usb/typec/tcpm/tcpci_mt6360.c

@@ -15,6 +15,9 @@
 
 #include "tcpci.h"
 
+#define MT6360_REG_PHYCTRL1	0x80
+#define MT6360_REG_PHYCTRL3	0x82
+#define MT6360_REG_PHYCTRL7	0x86
 #define MT6360_REG_VCONNCTRL1	0x8C
 #define MT6360_REG_MODECTRL2	0x8F
 #define MT6360_REG_SWRESET	0xA0
@@ -22,6 +25,8 @@
 #define MT6360_REG_DRPCTRL1	0xA2
 #define MT6360_REG_DRPCTRL2	0xA3
 #define MT6360_REG_I2CTORST	0xBF
+#define MT6360_REG_PHYCTRL11	0xCA
+#define MT6360_REG_RXCTRL1	0xCE
 #define MT6360_REG_RXCTRL2	0xCF
 #define MT6360_REG_CTDCTRL2	0xEC
 
@@ -106,6 +111,27 @@ static int mt6360_tcpc_init(struct tcpci *tcpci, struct tcpci_data *tdata)
 	if (ret)
 		return ret;
 
+	/* BMC PHY */
+	ret = mt6360_tcpc_write16(regmap, MT6360_REG_PHYCTRL1, 0x3A70);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(regmap, MT6360_REG_PHYCTRL3,  0x82);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(regmap, MT6360_REG_PHYCTRL7, 0x36);
+	if (ret)
+		return ret;
+
+	ret = mt6360_tcpc_write16(regmap, MT6360_REG_PHYCTRL11, 0x3C60);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(regmap, MT6360_REG_RXCTRL1, 0xE8);
+	if (ret)
+		return ret;
+
 	/* Set shipping mode off, AUTOIDLE on */
 	return regmap_write(regmap, MT6360_REG_MODECTRL2, 0x7A);
 }