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Commit 01fb49ff authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge tag 'fixes-for-v5.2-rc4' of... 

Merge tag 'fixes-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb

 into usb-linus

Felipe writes:

USB: fixes for v5.2-rc4

DWC2 gets a fix for zlp handling which allows DWC2 to pass USBCV MSC
tests.

A memory leak in fusb300 was plugged.

DWC2 also got a fix for wMaxPacketSize handling while acting as host
which fixes a regression with USB Cameras.

Apart from these, the usual set of minor fixes.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>

* tag 'fixes-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()
  usb: gadget: dwc2: fix zlp handling
  usb: dwc2: Set actual frame number for completed ISOC transfer for none DDMA
  usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
  usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
  usb: phy: mxs: Disable external charger detect in mxs_phy_hw_init()
  usb: dwc2: Fix DMA cache alignment issues
  usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
parents bd21f022 42cc6886

drivers/usb/dwc2/gadget.c

+16 −8
Original line number Diff line number Diff line
@@ -835,19 +835,22 @@ static void dwc2_gadget_fill_nonisoc_xfer_ddma_one(struct dwc2_hsotg_ep *hs_ep, 
 * with corresponding information based on transfer data.

 */

static void dwc2_gadget_config_nonisoc_xfer_ddma(struct dwc2_hsotg_ep *hs_ep,

						 struct usb_request *ureq,

						 unsigned int offset,

						 dma_addr_t dma_buff,

						 unsigned int len)

{

	struct usb_request *ureq = NULL;

	struct dwc2_dma_desc *desc = hs_ep->desc_list;

	struct scatterlist *sg;

	int i;

	u8 desc_count = 0;



	if (hs_ep->req)

		ureq = &hs_ep->req->req;



	/* non-DMA sg buffer */

	if (!ureq->num_sgs) {

	if (!ureq || !ureq->num_sgs) {

		dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &desc,

			ureq->dma + offset, len, true);

			dma_buff, len, true);

		return;

	}
@@ -1135,7 +1138,7 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, 
			offset = ureq->actual;



		/* Fill DDMA chain entries */

		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq, offset,

		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq->dma + offset,

						     length);



		/* write descriptor chain address to control register */
@@ -2037,12 +2040,13 @@ static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg, 
		dev_dbg(hsotg->dev, "Receiving zero-length packet on ep%d\n",

			index);

	if (using_desc_dma(hsotg)) {

		/* Not specific buffer needed for ep0 ZLP */

		dma_addr_t dma = hs_ep->desc_list_dma;



		if (!index)

			dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);



		/* Not specific buffer needed for ep0 ZLP */

		dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &hs_ep->desc_list,

			hs_ep->desc_list_dma, 0, true);

		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0);

	} else {

		dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |

			    DXEPTSIZ_XFERSIZE(0),
@@ -2417,6 +2421,10 @@ static void dwc2_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum) 
			dwc2_gadget_incr_frame_num(hs_ep);

	}



	/* Set actual frame number for completed transfers */

	if (!using_desc_dma(hsotg) && hs_ep->isochronous)

		req->frame_number = hsotg->frame_number;



	dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, result);

}

drivers/usb/dwc2/hcd.c

+24 −15
Original line number Diff line number Diff line
@@ -2480,8 +2480,10 @@ static void dwc2_free_dma_aligned_buffer(struct urb *urb) 
		return;



	/* Restore urb->transfer_buffer from the end of the allocated area */

	memcpy(&stored_xfer_buffer, urb->transfer_buffer +

	       urb->transfer_buffer_length, sizeof(urb->transfer_buffer));

	memcpy(&stored_xfer_buffer,

	       PTR_ALIGN(urb->transfer_buffer + urb->transfer_buffer_length,

			 dma_get_cache_alignment()),

	       sizeof(urb->transfer_buffer));



	if (usb_urb_dir_in(urb)) {

		if (usb_pipeisoc(urb->pipe))
@@ -2513,6 +2515,7 @@ static int dwc2_alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags) 
	 * DMA

	 */

	kmalloc_size = urb->transfer_buffer_length +

		(dma_get_cache_alignment() - 1) +

		sizeof(urb->transfer_buffer);



	kmalloc_ptr = kmalloc(kmalloc_size, mem_flags);
@@ -2523,7 +2526,8 @@ static int dwc2_alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags) 
	 * Position value of original urb->transfer_buffer pointer to the end

	 * of allocation for later referencing

	 */

	memcpy(kmalloc_ptr + urb->transfer_buffer_length,

	memcpy(PTR_ALIGN(kmalloc_ptr + urb->transfer_buffer_length,

			 dma_get_cache_alignment()),

	       &urb->transfer_buffer, sizeof(urb->transfer_buffer));



	if (usb_urb_dir_out(urb))
@@ -2608,7 +2612,7 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) 
	chan->dev_addr = dwc2_hcd_get_dev_addr(&urb->pipe_info);

	chan->ep_num = dwc2_hcd_get_ep_num(&urb->pipe_info);

	chan->speed = qh->dev_speed;

	chan->max_packet = dwc2_max_packet(qh->maxp);

	chan->max_packet = qh->maxp;



	chan->xfer_started = 0;

	chan->halt_status = DWC2_HC_XFER_NO_HALT_STATUS;
@@ -2686,7 +2690,7 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) 
		 * This value may be modified when the transfer is started

		 * to reflect the actual transfer length

		 */

		chan->multi_count = dwc2_hb_mult(qh->maxp);

		chan->multi_count = qh->maxp_mult;



	if (hsotg->params.dma_desc_enable) {

		chan->desc_list_addr = qh->desc_list_dma;
@@ -3806,19 +3810,21 @@ static struct dwc2_hcd_urb *dwc2_hcd_urb_alloc(struct dwc2_hsotg *hsotg, 


static void dwc2_hcd_urb_set_pipeinfo(struct dwc2_hsotg *hsotg,

				      struct dwc2_hcd_urb *urb, u8 dev_addr,

				      u8 ep_num, u8 ep_type, u8 ep_dir, u16 mps)

				      u8 ep_num, u8 ep_type, u8 ep_dir,

				      u16 maxp, u16 maxp_mult)

{

	if (dbg_perio() ||

	    ep_type == USB_ENDPOINT_XFER_BULK ||

	    ep_type == USB_ENDPOINT_XFER_CONTROL)

		dev_vdbg(hsotg->dev,

			 "addr=%d, ep_num=%d, ep_dir=%1x, ep_type=%1x, mps=%d\n",

			 dev_addr, ep_num, ep_dir, ep_type, mps);

			 "addr=%d, ep_num=%d, ep_dir=%1x, ep_type=%1x, maxp=%d (%d mult)\n",

			 dev_addr, ep_num, ep_dir, ep_type, maxp, maxp_mult);

	urb->pipe_info.dev_addr = dev_addr;

	urb->pipe_info.ep_num = ep_num;

	urb->pipe_info.pipe_type = ep_type;

	urb->pipe_info.pipe_dir = ep_dir;

	urb->pipe_info.mps = mps;

	urb->pipe_info.maxp = maxp;

	urb->pipe_info.maxp_mult = maxp_mult;

}



/*
@@ -3909,8 +3915,9 @@ void dwc2_hcd_dump_state(struct dwc2_hsotg *hsotg) 
					dwc2_hcd_is_pipe_in(&urb->pipe_info) ?

					"IN" : "OUT");

				dev_dbg(hsotg->dev,

					"      Max packet size: %d\n",

					dwc2_hcd_get_mps(&urb->pipe_info));

					"      Max packet size: %d (%d mult)\n",

					dwc2_hcd_get_maxp(&urb->pipe_info),

					dwc2_hcd_get_maxp_mult(&urb->pipe_info));

				dev_dbg(hsotg->dev,

					"      transfer_buffer: %p\n",

					urb->buf);
@@ -4510,8 +4517,10 @@ static void dwc2_dump_urb_info(struct usb_hcd *hcd, struct urb *urb, 
	}



	dev_vdbg(hsotg->dev, "  Speed: %s\n", speed);

	dev_vdbg(hsotg->dev, "  Max packet size: %d\n",

		 usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)));

	dev_vdbg(hsotg->dev, "  Max packet size: %d (%d mult)\n",

		 usb_endpoint_maxp(&urb->ep->desc),

		 usb_endpoint_maxp_mult(&urb->ep->desc));



	dev_vdbg(hsotg->dev, "  Data buffer length: %d\n",

		 urb->transfer_buffer_length);

	dev_vdbg(hsotg->dev, "  Transfer buffer: %p, Transfer DMA: %08lx\n",
@@ -4594,8 +4603,8 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, 
	dwc2_hcd_urb_set_pipeinfo(hsotg, dwc2_urb, usb_pipedevice(urb->pipe),

				  usb_pipeendpoint(urb->pipe), ep_type,

				  usb_pipein(urb->pipe),

				  usb_maxpacket(urb->dev, urb->pipe,

						!(usb_pipein(urb->pipe))));

				  usb_endpoint_maxp(&ep->desc),

				  usb_endpoint_maxp_mult(&ep->desc));



	buf = urb->transfer_buffer;

drivers/usb/dwc2/hcd.h

+11 −9
Original line number Diff line number Diff line
@@ -171,7 +171,8 @@ struct dwc2_hcd_pipe_info { 
	u8 ep_num;

	u8 pipe_type;

	u8 pipe_dir;

	u16 mps;

	u16 maxp;

	u16 maxp_mult;

};



struct dwc2_hcd_iso_packet_desc {
@@ -264,6 +265,7 @@ struct dwc2_hs_transfer_time { 
 *                       - USB_ENDPOINT_XFER_ISOC

 * @ep_is_in:           Endpoint direction

 * @maxp:               Value from wMaxPacketSize field of Endpoint Descriptor

 * @maxp_mult:          Multiplier for maxp

 * @dev_speed:          Device speed. One of the following values:

 *                       - USB_SPEED_LOW

 *                       - USB_SPEED_FULL
@@ -340,6 +342,7 @@ struct dwc2_qh { 
	u8 ep_type;

	u8 ep_is_in;

	u16 maxp;

	u16 maxp_mult;

	u8 dev_speed;

	u8 data_toggle;

	u8 ping_state;
@@ -503,9 +506,14 @@ static inline u8 dwc2_hcd_get_pipe_type(struct dwc2_hcd_pipe_info *pipe) 
	return pipe->pipe_type;

}



static inline u16 dwc2_hcd_get_mps(struct dwc2_hcd_pipe_info *pipe)

static inline u16 dwc2_hcd_get_maxp(struct dwc2_hcd_pipe_info *pipe)

{

	return pipe->maxp;

}



static inline u16 dwc2_hcd_get_maxp_mult(struct dwc2_hcd_pipe_info *pipe)

{

	return pipe->mps;

	return pipe->maxp_mult;

}



static inline u8 dwc2_hcd_get_dev_addr(struct dwc2_hcd_pipe_info *pipe)
@@ -620,12 +628,6 @@ static inline bool dbg_urb(struct urb *urb) 
static inline bool dbg_perio(void) { return false; }

#endif



/* High bandwidth multiplier as encoded in highspeed endpoint descriptors */

#define dwc2_hb_mult(wmaxpacketsize) (1 + (((wmaxpacketsize) >> 11) & 0x03))



/* Packet size for any kind of endpoint descriptor */

#define dwc2_max_packet(wmaxpacketsize) ((wmaxpacketsize) & 0x07ff)



/*

 * Returns true if frame1 index is greater than frame2 index. The comparison

 * is done modulo FRLISTEN_64_SIZE. This accounts for the rollover of the

drivers/usb/dwc2/hcd_intr.c

+3 −2
Original line number Diff line number Diff line
@@ -1617,8 +1617,9 @@ static void dwc2_hc_ahberr_intr(struct dwc2_hsotg *hsotg, 


	dev_err(hsotg->dev, "  Speed: %s\n", speed);



	dev_err(hsotg->dev, "  Max packet size: %d\n",

		dwc2_hcd_get_mps(&urb->pipe_info));

	dev_err(hsotg->dev, "  Max packet size: %d (mult %d)\n",

		dwc2_hcd_get_maxp(&urb->pipe_info),

		dwc2_hcd_get_maxp_mult(&urb->pipe_info));

	dev_err(hsotg->dev, "  Data buffer length: %d\n", urb->length);

	dev_err(hsotg->dev, "  Transfer buffer: %p, Transfer DMA: %08lx\n",

		urb->buf, (unsigned long)urb->dma);

drivers/usb/dwc2/hcd_queue.c

+6 −4
Original line number Diff line number Diff line
@@ -708,7 +708,7 @@ static void dwc2_hs_pmap_unschedule(struct dwc2_hsotg *hsotg, 
static int dwc2_uframe_schedule_split(struct dwc2_hsotg *hsotg,

				      struct dwc2_qh *qh)

{

	int bytecount = dwc2_hb_mult(qh->maxp) * dwc2_max_packet(qh->maxp);

	int bytecount = qh->maxp_mult * qh->maxp;

	int ls_search_slice;

	int err = 0;

	int host_interval_in_sched;
@@ -1332,7 +1332,7 @@ static int dwc2_check_max_xfer_size(struct dwc2_hsotg *hsotg, 
	u32 max_channel_xfer_size;

	int status = 0;



	max_xfer_size = dwc2_max_packet(qh->maxp) * dwc2_hb_mult(qh->maxp);

	max_xfer_size = qh->maxp * qh->maxp_mult;

	max_channel_xfer_size = hsotg->params.max_transfer_size;



	if (max_xfer_size > max_channel_xfer_size) {
@@ -1517,8 +1517,9 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh, 
	u32 prtspd = (hprt & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;

	bool do_split = (prtspd == HPRT0_SPD_HIGH_SPEED &&

			 dev_speed != USB_SPEED_HIGH);

	int maxp = dwc2_hcd_get_mps(&urb->pipe_info);

	int bytecount = dwc2_hb_mult(maxp) * dwc2_max_packet(maxp);

	int maxp = dwc2_hcd_get_maxp(&urb->pipe_info);

	int maxp_mult = dwc2_hcd_get_maxp_mult(&urb->pipe_info);

	int bytecount = maxp_mult * maxp;

	char *speed, *type;



	/* Initialize QH */
@@ -1531,6 +1532,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh, 


	qh->data_toggle = DWC2_HC_PID_DATA0;

	qh->maxp = maxp;

	qh->maxp_mult = maxp_mult;

	INIT_LIST_HEAD(&qh->qtd_list);

	INIT_LIST_HEAD(&qh->qh_list_entry);