Commit a09e23f5 authored by Mian Yousaf Kaukab's avatar Mian Yousaf Kaukab Committed by Felipe Balbi
Browse files

usb: gadget: net2280: check interrupts for all endpoints 



USB3380 in enhanced mode has 4 IN and 4 OUT endpoints. Check
interrupts for all of them.

Tested-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 463e104f

drivers/usb/gadget/udc/net2280.c

+44 −13
Original line number Diff line number Diff line
@@ -2883,6 +2883,26 @@ static void handle_stat0_irqs_superspeed(struct net2280 *dev, 
	return;

}



static void usb338x_handle_ep_intr(struct net2280 *dev, u32 stat0)

{

	u32 index;

	u32 bit;



	for (index = 0; index < ARRAY_SIZE(ep_bit); index++) {

		bit = BIT(ep_bit[index]);



		if (!stat0)

			break;



		if (!(stat0 & bit))

			continue;



		stat0 &= ~bit;



		handle_ep_small(&dev->ep[index]);

	}

}



static void handle_stat0_irqs(struct net2280 *dev, u32 stat)

{

	struct net2280_ep	*ep;
@@ -3107,6 +3127,16 @@ static void handle_stat0_irqs(struct net2280 *dev, u32 stat) 
#undef	w_length



next_endpoints:

	if ((dev->quirks & PLX_SUPERSPEED) && dev->enhanced_mode) {

		u32 mask = (BIT(ENDPOINT_0_INTERRUPT) |

			USB3380_IRQSTAT0_EP_INTR_MASK_IN |

			USB3380_IRQSTAT0_EP_INTR_MASK_OUT);



		if (stat & mask) {

			usb338x_handle_ep_intr(dev, stat & mask);

			stat &= ~mask;

		}

	} else {

		/* endpoint data irq ? */

		scratch = stat & 0x7f;

		stat &= ~0x7f;
@@ -3122,6 +3152,7 @@ static void handle_stat0_irqs(struct net2280 *dev, u32 stat) 
			ep = &dev->ep[num];

			handle_ep_small(ep);

		}

	}



	if (stat)

		ep_dbg(dev, "unhandled irqstat0 %08x\n", stat);

include/linux/usb/net2280.h

+3 −0
Original line number Diff line number Diff line
@@ -168,6 +168,9 @@ struct net2280_regs { 
#define     ENDPOINT_B_INTERRUPT                                2

#define     ENDPOINT_A_INTERRUPT                                1

#define     ENDPOINT_0_INTERRUPT                                0

#define     USB3380_IRQSTAT0_EP_INTR_MASK_IN (0xF << 17)

#define     USB3380_IRQSTAT0_EP_INTR_MASK_OUT (0xF << 1)



	u32		irqstat1;

#define     POWER_STATE_CHANGE_INTERRUPT                        27

#define     PCI_ARBITER_TIMEOUT_INTERRUPT                       26