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-rw-r--r--drivers/usb/cdns3/cdns3-gadget.c8
-rw-r--r--drivers/usb/cdns3/core.c1
-rw-r--r--drivers/usb/cdns3/drd.c13
-rw-r--r--drivers/usb/cdns3/drd.h6
-rw-r--r--drivers/usb/cdns3/host.c16
5 files changed, 34 insertions, 10 deletions
diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
index ccdd525bd..2b8f98f07 100644
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -826,7 +826,11 @@ void cdns3_gadget_giveback(struct cdns3_endpoint *priv_ep,
return;
}
- if (request->complete) {
+ /*
+ * zlp request is appended by driver, needn't call usb_gadget_giveback_request() to notify
+ * gadget composite driver.
+ */
+ if (request->complete && request->buf != priv_dev->zlp_buf) {
spin_unlock(&priv_dev->lock);
usb_gadget_giveback_request(&priv_ep->endpoint,
request);
@@ -2537,11 +2541,11 @@ static int cdns3_gadget_ep_disable(struct usb_ep *ep)
while (!list_empty(&priv_ep->wa2_descmiss_req_list)) {
priv_req = cdns3_next_priv_request(&priv_ep->wa2_descmiss_req_list);
+ list_del_init(&priv_req->list);
kfree(priv_req->request.buf);
cdns3_gadget_ep_free_request(&priv_ep->endpoint,
&priv_req->request);
- list_del_init(&priv_req->list);
--priv_ep->wa2_counter;
}
diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 7b20d2d5c..7242591b3 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -394,7 +394,6 @@ pm_put:
return ret;
}
-
/**
* cdns_wakeup_irq - interrupt handler for wakeup events
* @irq: irq number for cdns3/cdnsp core device
diff --git a/drivers/usb/cdns3/drd.c b/drivers/usb/cdns3/drd.c
index d00ff98df..33ba30f79 100644
--- a/drivers/usb/cdns3/drd.c
+++ b/drivers/usb/cdns3/drd.c
@@ -156,7 +156,8 @@ bool cdns_is_device(struct cdns *cdns)
*/
static void cdns_otg_disable_irq(struct cdns *cdns)
{
- writel(0, &cdns->otg_irq_regs->ien);
+ if (cdns->version)
+ writel(0, &cdns->otg_irq_regs->ien);
}
/**
@@ -418,15 +419,20 @@ int cdns_drd_init(struct cdns *cdns)
cdns->otg_regs = (void __iomem *)&cdns->otg_v1_regs->cmd;
- if (readl(&cdns->otg_cdnsp_regs->did) == OTG_CDNSP_DID) {
+ state = readl(&cdns->otg_cdnsp_regs->did);
+
+ if (OTG_CDNSP_CHECK_DID(state)) {
cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *)
&cdns->otg_cdnsp_regs->ien;
cdns->version = CDNSP_CONTROLLER_V2;
- } else {
+ } else if (OTG_CDNS3_CHECK_DID(state)) {
cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *)
&cdns->otg_v1_regs->ien;
writel(1, &cdns->otg_v1_regs->simulate);
cdns->version = CDNS3_CONTROLLER_V1;
+ } else {
+ dev_err(cdns->dev, "not supporte DID=0x%08x\n", state);
+ return -EINVAL;
}
dev_dbg(cdns->dev, "DRD version v1 (ID: %08x, rev: %08x)\n",
@@ -479,7 +485,6 @@ int cdns_drd_exit(struct cdns *cdns)
return 0;
}
-
/* Indicate the cdns3 core was power lost before */
bool cdns_power_is_lost(struct cdns *cdns)
{
diff --git a/drivers/usb/cdns3/drd.h b/drivers/usb/cdns3/drd.h
index cbdf94f73..d72370c32 100644
--- a/drivers/usb/cdns3/drd.h
+++ b/drivers/usb/cdns3/drd.h
@@ -79,7 +79,11 @@ struct cdnsp_otg_regs {
__le32 susp_timing_ctrl;
};
-#define OTG_CDNSP_DID 0x0004034E
+/* CDNSP driver supports 0x000403xx Cadence USB controller family. */
+#define OTG_CDNSP_CHECK_DID(did) (((did) & GENMASK(31, 8)) == 0x00040300)
+
+/* CDNS3 driver supports 0x000402xx Cadence USB controller family. */
+#define OTG_CDNS3_CHECK_DID(did) (((did) & GENMASK(31, 8)) == 0x00040200)
/*
* Common registers interface for both CDNS3 and CDNSP version of DRD.
diff --git a/drivers/usb/cdns3/host.c b/drivers/usb/cdns3/host.c
index 6164fc4c9..ceca4d839 100644
--- a/drivers/usb/cdns3/host.c
+++ b/drivers/usb/cdns3/host.c
@@ -18,6 +18,11 @@
#include "../host/xhci.h"
#include "../host/xhci-plat.h"
+/*
+ * The XECP_PORT_CAP_REG and XECP_AUX_CTRL_REG1 exist only
+ * in Cadence USB3 dual-role controller, so it can't be used
+ * with Cadence CDNSP dual-role controller.
+ */
#define XECP_PORT_CAP_REG 0x8000
#define XECP_AUX_CTRL_REG1 0x8120
@@ -57,6 +62,8 @@ static const struct xhci_plat_priv xhci_plat_cdns3_xhci = {
.resume_quirk = xhci_cdns3_resume_quirk,
};
+static const struct xhci_plat_priv xhci_plat_cdnsp_xhci;
+
static int __cdns_host_init(struct cdns *cdns)
{
struct platform_device *xhci;
@@ -81,8 +88,13 @@ static int __cdns_host_init(struct cdns *cdns)
goto err1;
}
- cdns->xhci_plat_data = kmemdup(&xhci_plat_cdns3_xhci,
- sizeof(struct xhci_plat_priv), GFP_KERNEL);
+ if (cdns->version < CDNSP_CONTROLLER_V2)
+ cdns->xhci_plat_data = kmemdup(&xhci_plat_cdns3_xhci,
+ sizeof(struct xhci_plat_priv), GFP_KERNEL);
+ else
+ cdns->xhci_plat_data = kmemdup(&xhci_plat_cdnsp_xhci,
+ sizeof(struct xhci_plat_priv), GFP_KERNEL);
+
if (!cdns->xhci_plat_data) {
ret = -ENOMEM;
goto err1;