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Commit fc19b1d0 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge tag 'fixes-for-v4.16-rc2' of... 

Merge tag 'fixes-for-v4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.16-rc2

First set of fixes for current -rc cycle. Most of the changes are on
dwc3 this time around (59%) with some function changes (25%).

Out of the those, the most important fixes are:

- EP0 TRB counter fix on dwc3
- dwc3-omap stopped missing events during suspend/resume
- maxpacket size fix for ep0 in dwc3
- Descriptor processing fix for functionfs

Apart from these, your usual set of important-but-not-so-critical
fixes all over the place.
parents b86b8eb6 98112041

drivers/usb/dwc2/gadget.c

+16 −10
Original line number Diff line number Diff line
@@ -1917,7 +1917,9 @@ static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *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);



		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0);

	} else {

		dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
@@ -2974,11 +2976,15 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx, 
	if (ints & DXEPINT_STSPHSERCVD) {

		dev_dbg(hsotg->dev, "%s: StsPhseRcvd\n", __func__);



		/* Safety check EP0 state when STSPHSERCVD asserted */

		if (hsotg->ep0_state == DWC2_EP0_DATA_OUT) {

			/* Move to STATUS IN for DDMA */

			if (using_desc_dma(hsotg))

				dwc2_hsotg_ep0_zlp(hsotg, true);

		}



	}



	if (ints & DXEPINT_BACK2BACKSETUP)

		dev_dbg(hsotg->dev, "%s: B2BSetup/INEPNakEff\n", __func__);
@@ -3375,12 +3381,6 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, 
	dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |

	       DXEPCTL_USBACTEP, hsotg->regs + DIEPCTL0);



	dwc2_hsotg_enqueue_setup(hsotg);



	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",

		dwc2_readl(hsotg->regs + DIEPCTL0),

		dwc2_readl(hsotg->regs + DOEPCTL0));



	/* clear global NAKs */

	val = DCTL_CGOUTNAK | DCTL_CGNPINNAK;

	if (!is_usb_reset)
@@ -3391,6 +3391,12 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, 
	mdelay(3);



	hsotg->lx_state = DWC2_L0;



	dwc2_hsotg_enqueue_setup(hsotg);



	dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",

		dwc2_readl(hsotg->regs + DIEPCTL0),

		dwc2_readl(hsotg->regs + DOEPCTL0));

}



static void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)

drivers/usb/dwc3/core.c

+61 −25
Original line number Diff line number Diff line
@@ -100,6 +100,8 @@ static void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode) 
	reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG));

	reg |= DWC3_GCTL_PRTCAPDIR(mode);

	dwc3_writel(dwc->regs, DWC3_GCTL, reg);



	dwc->current_dr_role = mode;

}



static void __dwc3_set_mode(struct work_struct *work)
@@ -133,8 +135,6 @@ static void __dwc3_set_mode(struct work_struct *work) 


	dwc3_set_prtcap(dwc, dwc->desired_dr_role);



	dwc->current_dr_role = dwc->desired_dr_role;



	spin_unlock_irqrestore(&dwc->lock, flags);



	switch (dwc->desired_dr_role) {
@@ -219,7 +219,7 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc) 
	 * XHCI driver will reset the host block. If dwc3 was configured for

	 * host-only mode, then we can return early.

	 */

	if (dwc->dr_mode == USB_DR_MODE_HOST)

	if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST)

		return 0;



	reg = dwc3_readl(dwc->regs, DWC3_DCTL);
@@ -234,6 +234,9 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc) 
		udelay(1);

	} while (--retries);



	phy_exit(dwc->usb3_generic_phy);

	phy_exit(dwc->usb2_generic_phy);



	return -ETIMEDOUT;

}
@@ -483,6 +486,22 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) 
	parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8);

}



static int dwc3_core_ulpi_init(struct dwc3 *dwc)

{

	int intf;

	int ret = 0;



	intf = DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3);



	if (intf == DWC3_GHWPARAMS3_HSPHY_IFC_ULPI ||

	    (intf == DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI &&

	     dwc->hsphy_interface &&

	     !strncmp(dwc->hsphy_interface, "ulpi", 4)))

		ret = dwc3_ulpi_init(dwc);



	return ret;

}



/**

 * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core

 * @dwc: Pointer to our controller context structure
@@ -494,7 +513,6 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) 
static int dwc3_phy_setup(struct dwc3 *dwc)

{

	u32 reg;

	int ret;



	reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
@@ -565,9 +583,6 @@ static int dwc3_phy_setup(struct dwc3 *dwc) 
		}

		/* FALLTHROUGH */

	case DWC3_GHWPARAMS3_HSPHY_IFC_ULPI:

		ret = dwc3_ulpi_init(dwc);

		if (ret)

			return ret;

		/* FALLTHROUGH */

	default:

		break;
@@ -724,6 +739,7 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc) 
}



static int dwc3_core_get_phy(struct dwc3 *dwc);

static int dwc3_core_ulpi_init(struct dwc3 *dwc);



/**

 * dwc3_core_init - Low-level initialization of DWC3 Core
@@ -755,17 +771,27 @@ static int dwc3_core_init(struct dwc3 *dwc) 
			dwc->maximum_speed = USB_SPEED_HIGH;

	}



	ret = dwc3_core_get_phy(dwc);

	ret = dwc3_phy_setup(dwc);

	if (ret)

		goto err0;



	ret = dwc3_core_soft_reset(dwc);

	if (!dwc->ulpi_ready) {

		ret = dwc3_core_ulpi_init(dwc);

		if (ret)

			goto err0;

		dwc->ulpi_ready = true;

	}



	ret = dwc3_phy_setup(dwc);

	if (!dwc->phys_ready) {

		ret = dwc3_core_get_phy(dwc);

		if (ret)

		goto err0;

			goto err0a;

		dwc->phys_ready = true;

	}



	ret = dwc3_core_soft_reset(dwc);

	if (ret)

		goto err0a;



	dwc3_core_setup_global_control(dwc);

	dwc3_core_num_eps(dwc);
@@ -838,6 +864,9 @@ static int dwc3_core_init(struct dwc3 *dwc) 
	phy_exit(dwc->usb2_generic_phy);

	phy_exit(dwc->usb3_generic_phy);



err0a:

	dwc3_ulpi_exit(dwc);



err0:

	return ret;

}
@@ -916,7 +945,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) 


	switch (dwc->dr_mode) {

	case USB_DR_MODE_PERIPHERAL:

		dwc->current_dr_role = DWC3_GCTL_PRTCAP_DEVICE;

		dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE);



		if (dwc->usb2_phy)
@@ -932,7 +960,6 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) 
		}

		break;

	case USB_DR_MODE_HOST:

		dwc->current_dr_role = DWC3_GCTL_PRTCAP_HOST;

		dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST);



		if (dwc->usb2_phy)
@@ -1234,7 +1261,6 @@ static int dwc3_probe(struct platform_device *pdev) 


err3:

	dwc3_free_event_buffers(dwc);

	dwc3_ulpi_exit(dwc);



err2:

	pm_runtime_allow(&pdev->dev);
@@ -1284,7 +1310,7 @@ static int dwc3_remove(struct platform_device *pdev) 
}



#ifdef CONFIG_PM

static int dwc3_suspend_common(struct dwc3 *dwc)

static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)

{

	unsigned long	flags;
@@ -1296,6 +1322,10 @@ static int dwc3_suspend_common(struct dwc3 *dwc) 
		dwc3_core_exit(dwc);

		break;

	case DWC3_GCTL_PRTCAP_HOST:

		/* do nothing during host runtime_suspend */

		if (!PMSG_IS_AUTO(msg))

			dwc3_core_exit(dwc);

		break;

	default:

		/* do nothing */

		break;
@@ -1304,7 +1334,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc) 
	return 0;

}



static int dwc3_resume_common(struct dwc3 *dwc)

static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg)

{

	unsigned long	flags;

	int		ret;
@@ -1320,6 +1350,13 @@ static int dwc3_resume_common(struct dwc3 *dwc) 
		spin_unlock_irqrestore(&dwc->lock, flags);

		break;

	case DWC3_GCTL_PRTCAP_HOST:

		/* nothing to do on host runtime_resume */

		if (!PMSG_IS_AUTO(msg)) {

			ret = dwc3_core_init(dwc);

			if (ret)

				return ret;

		}

		break;

	default:

		/* do nothing */

		break;
@@ -1331,12 +1368,11 @@ static int dwc3_resume_common(struct dwc3 *dwc) 
static int dwc3_runtime_checks(struct dwc3 *dwc)

{

	switch (dwc->current_dr_role) {

	case USB_DR_MODE_PERIPHERAL:

	case USB_DR_MODE_OTG:

	case DWC3_GCTL_PRTCAP_DEVICE:

		if (dwc->connected)

			return -EBUSY;

		break;

	case USB_DR_MODE_HOST:

	case DWC3_GCTL_PRTCAP_HOST:

	default:

		/* do nothing */

		break;
@@ -1353,7 +1389,7 @@ static int dwc3_runtime_suspend(struct device *dev) 
	if (dwc3_runtime_checks(dwc))

		return -EBUSY;



	ret = dwc3_suspend_common(dwc);

	ret = dwc3_suspend_common(dwc, PMSG_AUTO_SUSPEND);

	if (ret)

		return ret;
@@ -1369,7 +1405,7 @@ static int dwc3_runtime_resume(struct device *dev) 


	device_init_wakeup(dev, false);



	ret = dwc3_resume_common(dwc);

	ret = dwc3_resume_common(dwc, PMSG_AUTO_RESUME);

	if (ret)

		return ret;
@@ -1416,7 +1452,7 @@ static int dwc3_suspend(struct device *dev) 
	struct dwc3	*dwc = dev_get_drvdata(dev);

	int		ret;



	ret = dwc3_suspend_common(dwc);

	ret = dwc3_suspend_common(dwc, PMSG_SUSPEND);

	if (ret)

		return ret;
@@ -1432,7 +1468,7 @@ static int dwc3_resume(struct device *dev) 


	pinctrl_pm_select_default_state(dev);



	ret = dwc3_resume_common(dwc);

	ret = dwc3_resume_common(dwc, PMSG_RESUME);

	if (ret)

		return ret;

drivers/usb/dwc3/core.h

+14 −7
Original line number Diff line number Diff line
@@ -158,13 +158,15 @@ 
#define DWC3_GDBGFIFOSPACE_TYPE(n)	(((n) << 5) & 0x1e0)

#define DWC3_GDBGFIFOSPACE_SPACE_AVAILABLE(n) (((n) >> 16) & 0xffff)



#define DWC3_TXFIFOQ		1

#define DWC3_RXFIFOQ		3

#define DWC3_TXREQQ		5

#define DWC3_RXREQQ		7

#define DWC3_RXINFOQ		9

#define DWC3_DESCFETCHQ		13

#define DWC3_EVENTQ		15

#define DWC3_TXFIFOQ		0

#define DWC3_RXFIFOQ		1

#define DWC3_TXREQQ		2

#define DWC3_RXREQQ		3

#define DWC3_RXINFOQ		4

#define DWC3_PSTATQ		5

#define DWC3_DESCFETCHQ		6

#define DWC3_EVENTQ		7

#define DWC3_AUXEVENTQ		8



/* Global RX Threshold Configuration Register */

#define DWC3_GRXTHRCFG_MAXRXBURSTSIZE(n) (((n) & 0x1f) << 19)
@@ -795,7 +797,9 @@ struct dwc3_scratchpad_array { 
 * @usb3_phy: pointer to USB3 PHY

 * @usb2_generic_phy: pointer to USB2 PHY

 * @usb3_generic_phy: pointer to USB3 PHY

 * @phys_ready: flag to indicate that PHYs are ready

 * @ulpi: pointer to ulpi interface

 * @ulpi_ready: flag to indicate that ULPI is initialized

 * @u2sel: parameter from Set SEL request.

 * @u2pel: parameter from Set SEL request.

 * @u1sel: parameter from Set SEL request.
@@ -893,7 +897,10 @@ struct dwc3 { 
	struct phy		*usb2_generic_phy;

	struct phy		*usb3_generic_phy;



	bool			phys_ready;



	struct ulpi		*ulpi;

	bool			ulpi_ready;



	void __iomem		*regs;

	size_t			regs_size;

drivers/usb/dwc3/dwc3-of-simple.c

+1 −0
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ static int dwc3_of_simple_remove(struct platform_device *pdev) 
		clk_disable_unprepare(simple->clks[i]);

		clk_put(simple->clks[i]);

	}

	simple->num_clocks = 0;



	reset_control_assert(simple->resets);

	reset_control_put(simple->resets);

drivers/usb/dwc3/dwc3-omap.c

+16 −0
Original line number Diff line number Diff line
@@ -582,9 +582,25 @@ static int dwc3_omap_resume(struct device *dev) 
	return 0;

}



static void dwc3_omap_complete(struct device *dev)

{

	struct dwc3_omap	*omap = dev_get_drvdata(dev);



	if (extcon_get_state(omap->edev, EXTCON_USB))

		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);

	else

		dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);



	if (extcon_get_state(omap->edev, EXTCON_USB_HOST))

		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);

	else

		dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);

}



static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {



	SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)

	.complete = dwc3_omap_complete,

};



#define DEV_PM_OPS	(&dwc3_omap_dev_pm_ops)