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path: root/drivers/usb/dwc3
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-rw-r--r--drivers/usb/dwc3/core.c104
-rw-r--r--drivers/usb/dwc3/core.h27
-rw-r--r--drivers/usb/dwc3/dwc3-omap.c4
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c39
-rw-r--r--drivers/usb/dwc3/dwc3-st.c12
-rw-r--r--drivers/usb/dwc3/gadget.c104
-rw-r--r--drivers/usb/dwc3/platform_data.h3
7 files changed, 215 insertions, 78 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 064123e44566..22b4797383cd 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -34,6 +34,7 @@
#include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/acpi.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
@@ -143,6 +144,32 @@ static int dwc3_soft_reset(struct dwc3 *dwc)
return 0;
}
+/*
+ * dwc3_frame_length_adjustment - Adjusts frame length if required
+ * @dwc3: Pointer to our controller context structure
+ * @fladj: Value of GFLADJ_30MHZ to adjust frame length
+ */
+static void dwc3_frame_length_adjustment(struct dwc3 *dwc, u32 fladj)
+{
+ u32 reg;
+ u32 dft;
+
+ if (dwc->revision < DWC3_REVISION_250A)
+ return;
+
+ if (fladj == 0)
+ return;
+
+ reg = dwc3_readl(dwc->regs, DWC3_GFLADJ);
+ dft = reg & DWC3_GFLADJ_30MHZ_MASK;
+ if (!dev_WARN_ONCE(dwc->dev, dft == fladj,
+ "request value same as default, ignoring\n")) {
+ reg &= ~DWC3_GFLADJ_30MHZ_MASK;
+ reg |= DWC3_GFLADJ_30MHZ_SDBND_SEL | fladj;
+ dwc3_writel(dwc->regs, DWC3_GFLADJ, reg);
+ }
+}
+
/**
* dwc3_free_one_event_buffer - Frees one event buffer
* @dwc: Pointer to our controller context structure
@@ -488,6 +515,9 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->dis_u2_susphy_quirk)
reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+ if (dwc->dis_enblslpm_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
return 0;
@@ -507,12 +537,18 @@ static int dwc3_core_init(struct dwc3 *dwc)
reg = dwc3_readl(dwc->regs, DWC3_GSNPSID);
/* This should read as U3 followed by revision number */
- if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) {
+ if ((reg & DWC3_GSNPSID_MASK) == 0x55330000) {
+ /* Detected DWC_usb3 IP */
+ dwc->revision = reg;
+ } else if ((reg & DWC3_GSNPSID_MASK) == 0x33310000) {
+ /* Detected DWC_usb31 IP */
+ dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER);
+ dwc->revision |= DWC3_REVISION_IS_DWC31;
+ } else {
dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
ret = -ENODEV;
goto err0;
}
- dwc->revision = reg;
/*
* Write Linux Version Code to our GUID register so it's easy to figure
@@ -773,12 +809,12 @@ static int dwc3_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct dwc3_platform_data *pdata = dev_get_platdata(dev);
- struct device_node *node = dev->of_node;
struct resource *res;
struct dwc3 *dwc;
u8 lpm_nyet_threshold;
u8 tx_de_emphasis;
u8 hird_threshold;
+ u32 fladj = 0;
int ret;
@@ -842,51 +878,56 @@ static int dwc3_probe(struct platform_device *pdev)
*/
hird_threshold = 12;
- if (node) {
- dwc->maximum_speed = of_usb_get_maximum_speed(node);
- dwc->has_lpm_erratum = of_property_read_bool(node,
+ dwc->maximum_speed = usb_get_maximum_speed(dev);
+ dwc->dr_mode = usb_get_dr_mode(dev);
+
+ dwc->has_lpm_erratum = device_property_read_bool(dev,
"snps,has-lpm-erratum");
- of_property_read_u8(node, "snps,lpm-nyet-threshold",
+ device_property_read_u8(dev, "snps,lpm-nyet-threshold",
&lpm_nyet_threshold);
- dwc->is_utmi_l1_suspend = of_property_read_bool(node,
+ dwc->is_utmi_l1_suspend = device_property_read_bool(dev,
"snps,is-utmi-l1-suspend");
- of_property_read_u8(node, "snps,hird-threshold",
+ device_property_read_u8(dev, "snps,hird-threshold",
&hird_threshold);
- dwc->usb3_lpm_capable = of_property_read_bool(node,
+ dwc->usb3_lpm_capable = device_property_read_bool(dev,
"snps,usb3_lpm_capable");
- dwc->needs_fifo_resize = of_property_read_bool(node,
+ dwc->needs_fifo_resize = device_property_read_bool(dev,
"tx-fifo-resize");
- dwc->dr_mode = of_usb_get_dr_mode(node);
- dwc->disable_scramble_quirk = of_property_read_bool(node,
+ dwc->disable_scramble_quirk = device_property_read_bool(dev,
"snps,disable_scramble_quirk");
- dwc->u2exit_lfps_quirk = of_property_read_bool(node,
+ dwc->u2exit_lfps_quirk = device_property_read_bool(dev,
"snps,u2exit_lfps_quirk");
- dwc->u2ss_inp3_quirk = of_property_read_bool(node,
+ dwc->u2ss_inp3_quirk = device_property_read_bool(dev,
"snps,u2ss_inp3_quirk");
- dwc->req_p1p2p3_quirk = of_property_read_bool(node,
+ dwc->req_p1p2p3_quirk = device_property_read_bool(dev,
"snps,req_p1p2p3_quirk");
- dwc->del_p1p2p3_quirk = of_property_read_bool(node,
+ dwc->del_p1p2p3_quirk = device_property_read_bool(dev,
"snps,del_p1p2p3_quirk");
- dwc->del_phy_power_chg_quirk = of_property_read_bool(node,
+ dwc->del_phy_power_chg_quirk = device_property_read_bool(dev,
"snps,del_phy_power_chg_quirk");
- dwc->lfps_filter_quirk = of_property_read_bool(node,
+ dwc->lfps_filter_quirk = device_property_read_bool(dev,
"snps,lfps_filter_quirk");
- dwc->rx_detect_poll_quirk = of_property_read_bool(node,
+ dwc->rx_detect_poll_quirk = device_property_read_bool(dev,
"snps,rx_detect_poll_quirk");
- dwc->dis_u3_susphy_quirk = of_property_read_bool(node,
+ dwc->dis_u3_susphy_quirk = device_property_read_bool(dev,
"snps,dis_u3_susphy_quirk");
- dwc->dis_u2_susphy_quirk = of_property_read_bool(node,
+ dwc->dis_u2_susphy_quirk = device_property_read_bool(dev,
"snps,dis_u2_susphy_quirk");
+ dwc->dis_enblslpm_quirk = device_property_read_bool(dev,
+ "snps,dis_enblslpm_quirk");
- dwc->tx_de_emphasis_quirk = of_property_read_bool(node,
+ dwc->tx_de_emphasis_quirk = device_property_read_bool(dev,
"snps,tx_de_emphasis_quirk");
- of_property_read_u8(node, "snps,tx_de_emphasis",
+ device_property_read_u8(dev, "snps,tx_de_emphasis",
&tx_de_emphasis);
- of_property_read_string(node, "snps,hsphy_interface",
- &dwc->hsphy_interface);
- } else if (pdata) {
+ device_property_read_string(dev, "snps,hsphy_interface",
+ &dwc->hsphy_interface);
+ device_property_read_u32(dev, "snps,quirk-frame-length-adjustment",
+ &fladj);
+
+ if (pdata) {
dwc->maximum_speed = pdata->maximum_speed;
dwc->has_lpm_erratum = pdata->has_lpm_erratum;
if (pdata->lpm_nyet_threshold)
@@ -909,12 +950,14 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk;
dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk;
dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk;
+ dwc->dis_enblslpm_quirk = pdata->dis_enblslpm_quirk;
dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk;
if (pdata->tx_de_emphasis)
tx_de_emphasis = pdata->tx_de_emphasis;
dwc->hsphy_interface = pdata->hsphy_interface;
+ fladj = pdata->fladj_value;
}
/* default to superspeed if no maximum_speed passed */
@@ -971,6 +1014,9 @@ static int dwc3_probe(struct platform_device *pdev)
goto err1;
}
+ /* Adjust Frame Length */
+ dwc3_frame_length_adjustment(dwc, fladj);
+
usb_phy_set_suspend(dwc->usb2_phy, 0);
usb_phy_set_suspend(dwc->usb3_phy, 0);
ret = phy_power_on(dwc->usb2_generic_phy);
@@ -1091,6 +1137,8 @@ static int dwc3_suspend(struct device *dev)
phy_exit(dwc->usb2_generic_phy);
phy_exit(dwc->usb3_generic_phy);
+ pinctrl_pm_select_sleep_state(dev);
+
return 0;
}
@@ -1100,6 +1148,8 @@ static int dwc3_resume(struct device *dev)
unsigned long flags;
int ret;
+ pinctrl_pm_select_default_state(dev);
+
usb_phy_init(dwc->usb3_phy);
usb_phy_init(dwc->usb2_phy);
ret = phy_init(dwc->usb2_generic_phy);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 044778884585..36f1cb74588c 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -108,6 +108,9 @@
#define DWC3_GPRTBIMAP_FS0 0xc188
#define DWC3_GPRTBIMAP_FS1 0xc18c
+#define DWC3_VER_NUMBER 0xc1a0
+#define DWC3_VER_TYPE 0xc1a4
+
#define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
#define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
@@ -124,6 +127,7 @@
#define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
#define DWC3_GHWPARAMS8 0xc600
+#define DWC3_GFLADJ 0xc630
/* Device Registers */
#define DWC3_DCFG 0xc700
@@ -175,6 +179,7 @@
#define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
#define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
#define DWC3_GUSB2PHYCFG_ULPI_UTMI (1 << 4)
+#define DWC3_GUSB2PHYCFG_ENBLSLPM (1 << 8)
/* Global USB2 PHY Vendor Control Register */
#define DWC3_GUSB2PHYACC_NEWREGREQ (1 << 25)
@@ -234,6 +239,10 @@
/* Global HWPARAMS6 Register */
#define DWC3_GHWPARAMS6_EN_FPGA (1 << 7)
+/* Global Frame Length Adjustment Register */
+#define DWC3_GFLADJ_30MHZ_SDBND_SEL (1 << 7)
+#define DWC3_GFLADJ_30MHZ_MASK 0x3f
+
/* Device Configuration Register */
#define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
#define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
@@ -712,6 +721,8 @@ struct dwc3_scratchpad_array {
* @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
* @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
* @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
+ * @dis_enblslpm_quirk: set if we clear enblslpm in GUSB2PHYCFG,
+ * disabling the suspend signal to the PHY.
* @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk
* @tx_de_emphasis: Tx de-emphasis value
* 0 - -6dB de-emphasis
@@ -766,6 +777,14 @@ struct dwc3 {
u32 num_event_buffers;
u32 u1u2;
u32 maximum_speed;
+
+ /*
+ * All 3.1 IP version constants are greater than the 3.0 IP
+ * version constants. This works for most version checks in
+ * dwc3. However, in the future, this may not apply as
+ * features may be developed on newer versions of the 3.0 IP
+ * that are not in the 3.1 IP.
+ */
u32 revision;
#define DWC3_REVISION_173A 0x5533173a
@@ -788,6 +807,13 @@ struct dwc3 {
#define DWC3_REVISION_270A 0x5533270a
#define DWC3_REVISION_280A 0x5533280a
+/*
+ * NOTICE: we're using bit 31 as a "is usb 3.1" flag. This is really
+ * just so dwc31 revisions are always larger than dwc3.
+ */
+#define DWC3_REVISION_IS_DWC31 0x80000000
+#define DWC3_USB31_REVISION_110A (0x3131302a | DWC3_REVISION_IS_USB31)
+
enum dwc3_ep0_next ep0_next_event;
enum dwc3_ep0_state ep0state;
enum dwc3_link_state link_state;
@@ -841,6 +867,7 @@ struct dwc3 {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned dis_enblslpm_quirk:1;
unsigned tx_de_emphasis_quirk:1;
unsigned tx_de_emphasis:2;
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index a5a1b7c45743..22e9606d8e08 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -514,8 +514,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
goto err1;
}
- dwc3_omap_enable_irqs(omap);
-
ret = dwc3_omap_extcon_register(omap);
if (ret < 0)
goto err2;
@@ -526,6 +524,8 @@ static int dwc3_omap_probe(struct platform_device *pdev)
goto err3;
}
+ dwc3_omap_enable_irqs(omap);
+
return 0;
err3:
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index f62617999f3c..77a622cb48ab 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -26,12 +26,14 @@
#include "platform_data.h"
-#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
-#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
-#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
-#define PCI_DEVICE_ID_INTEL_BSW 0x22B7
-#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
-#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
+#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
+#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
+#define PCI_DEVICE_ID_INTEL_BSW 0x22b7
+#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
+#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
@@ -106,6 +108,22 @@ static int dwc3_pci_quirks(struct pci_dev *pdev)
}
}
+ if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
+ (pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 ||
+ pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI ||
+ pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
+
+ struct dwc3_platform_data pdata;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.usb3_lpm_capable = true;
+ pdata.has_lpm_erratum = true;
+ pdata.dis_enblslpm_quirk = true;
+
+ return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
+ sizeof(pdata));
+ }
+
return 0;
}
@@ -154,6 +172,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
goto err;
dwc3->dev.parent = dev;
+ ACPI_COMPANION_SET(&dwc3->dev, ACPI_COMPANION(dev));
ret = platform_device_add(dwc3);
if (ret) {
@@ -178,6 +197,14 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
},
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
+ PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI),
+ },
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
+ PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31),
+ },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index de4d52f62517..5c0adb9c6fb2 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -195,6 +195,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
struct resource *res;
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node, *child;
+ struct platform_device *child_pdev;
struct regmap *regmap;
int ret;
@@ -253,8 +254,6 @@ static int st_dwc3_probe(struct platform_device *pdev)
goto undo_softreset;
}
- dwc3_data->dr_mode = of_usb_get_dr_mode(child);
-
/* Allocate and initialize the core */
ret = of_platform_populate(node, NULL, NULL, dev);
if (ret) {
@@ -262,6 +261,15 @@ static int st_dwc3_probe(struct platform_device *pdev)
goto undo_softreset;
}
+ child_pdev = of_find_device_by_node(child);
+ if (!child_pdev) {
+ dev_err(dev, "failed to find dwc3 core device\n");
+ ret = -ENODEV;
+ goto undo_softreset;
+ }
+
+ dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev);
+
/*
* Configure the USB port as device or host according to the static
* configuration passed from DT.
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 0c25704dcb6b..55ba447fdf8b 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -948,7 +948,6 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
dwc3_trace(trace_dwc3_gadget, "%s: endpoint busy", dep->name);
return -EBUSY;
}
- dep->flags &= ~DWC3_EP_PENDING_REQUEST;
/*
* If we are getting here after a short-out-packet we don't enqueue any
@@ -1050,6 +1049,8 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
req->direction = dep->direction;
req->epnum = dep->number;
+ trace_dwc3_ep_queue(req);
+
/*
* We only add to our list of requests now and
* start consuming the list once we get XferNotReady
@@ -1070,6 +1071,19 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
list_add_tail(&req->list, &dep->request_list);
/*
+ * If there are no pending requests and the endpoint isn't already
+ * busy, we will just start the request straight away.
+ *
+ * This will save one IRQ (XFER_NOT_READY) and possibly make it a
+ * little bit faster.
+ */
+ if (!usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
+ !(dep->flags & DWC3_EP_BUSY)) {
+ ret = __dwc3_gadget_kick_transfer(dep, 0, true);
+ goto out;
+ }
+
+ /*
* There are a few special cases:
*
* 1. XferNotReady with empty list of requests. We need to kick the
@@ -1096,10 +1110,10 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
}
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- return ret;
+ if (!ret)
+ dep->flags &= ~DWC3_EP_PENDING_REQUEST;
+
+ goto out;
}
/*
@@ -1113,10 +1127,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
WARN_ON_ONCE(!dep->resource_index);
ret = __dwc3_gadget_kick_transfer(dep, dep->resource_index,
false);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- return ret;
+ goto out;
}
/*
@@ -1124,14 +1135,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
* right away, otherwise host will not know we have streams to be
* handled.
*/
- if (dep->stream_capable) {
+ if (dep->stream_capable)
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- }
- return 0;
+out:
+ if (ret && ret != -EBUSY)
+ dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
+ dep->name);
+ if (ret == -EBUSY)
+ ret = 0;
+
+ return ret;
}
static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
@@ -1159,8 +1173,6 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
goto out;
}
- trace_dwc3_ep_queue(req);
-
ret = __dwc3_gadget_ep_queue(dep, req);
out:
@@ -1872,27 +1884,32 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
unsigned int i;
int ret;
- req = next_request(&dep->req_queued);
- if (!req) {
- WARN_ON_ONCE(1);
- return 1;
- }
- i = 0;
do {
- slot = req->start_slot + i;
- if ((slot == DWC3_TRB_NUM - 1) &&
+ req = next_request(&dep->req_queued);
+ if (!req) {
+ WARN_ON_ONCE(1);
+ return 1;
+ }
+ i = 0;
+ do {
+ slot = req->start_slot + i;
+ if ((slot == DWC3_TRB_NUM - 1) &&
usb_endpoint_xfer_isoc(dep->endpoint.desc))
- slot++;
- slot %= DWC3_TRB_NUM;
- trb = &dep->trb_pool[slot];
+ slot++;
+ slot %= DWC3_TRB_NUM;
+ trb = &dep->trb_pool[slot];
+
+ ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
+ event, status);
+ if (ret)
+ break;
+ } while (++i < req->request.num_mapped_sgs);
+
+ dwc3_gadget_giveback(dep, req, status);
- ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
- event, status);
if (ret)
break;
- } while (++i < req->request.num_mapped_sgs);
-
- dwc3_gadget_giveback(dep, req, status);
+ } while (1);
if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
list_empty(&dep->req_queued)) {
@@ -1955,6 +1972,14 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
dwc->u1u2 = 0;
}
+
+ if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
+ int ret;
+
+ ret = __dwc3_gadget_kick_transfer(dep, 0, is_xfer_complete);
+ if (!ret || ret == -EBUSY)
+ return;
+ }
}
static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
@@ -1992,15 +2017,16 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
dwc3_gadget_start_isoc(dwc, dep, event);
} else {
+ int active;
int ret;
+ active = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE;
+
dwc3_trace(trace_dwc3_gadget, "%s: reason %s",
- dep->name, event->status &
- DEPEVT_STATUS_TRANSFER_ACTIVE
- ? "Transfer Active"
+ dep->name, active ? "Transfer Active"
: "Transfer Not Active");
- ret = __dwc3_gadget_kick_transfer(dep, 0, 1);
+ ret = __dwc3_gadget_kick_transfer(dep, 0, !active);
if (!ret || ret == -EBUSY)
return;
@@ -2665,8 +2691,6 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
int i;
irqreturn_t ret = IRQ_NONE;
- spin_lock(&dwc->lock);
-
for (i = 0; i < dwc->num_event_buffers; i++) {
irqreturn_t status;
@@ -2675,8 +2699,6 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
ret = status;
}
- spin_unlock(&dwc->lock);
-
return ret;
}
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index d3614ecbb9ca..2bb4d3ad0e6b 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -42,9 +42,12 @@ struct dwc3_platform_data {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned dis_enblslpm_quirk:1;
unsigned tx_de_emphasis_quirk:1;
unsigned tx_de_emphasis:2;
+ u32 fladj_value;
+
const char *hsphy_interface;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 17:01:46 +0000