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-rw-r--r--drivers/usb/dwc3/Kconfig4
-rw-r--r--drivers/usb/dwc3/core.c253
-rw-r--r--drivers/usb/dwc3/dwc3-exynos.c71
-rw-r--r--drivers/usb/dwc3/dwc3-omap.c2
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c21
-rw-r--r--drivers/usb/dwc3/gadget.c83
6 files changed, 280 insertions, 154 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index e2c730fc9a90..8eb996e4f058 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -44,7 +44,7 @@ comment "Platform Glue Driver Support"
config USB_DWC3_OMAP
tristate "Texas Instruments OMAP5 and similar Platforms"
- depends on EXTCON
+ depends on EXTCON && (ARCH_OMAP2PLUS || COMPILE_TEST)
default USB_DWC3
help
Some platforms from Texas Instruments like OMAP5, DRA7xxx and
@@ -54,6 +54,7 @@ config USB_DWC3_OMAP
config USB_DWC3_EXYNOS
tristate "Samsung Exynos Platform"
+ depends on ARCH_EXYNOS || COMPILE_TEST
default USB_DWC3
help
Recent Exynos5 SoCs ship with one DesignWare Core USB3 IP inside,
@@ -72,6 +73,7 @@ config USB_DWC3_PCI
config USB_DWC3_KEYSTONE
tristate "Texas Instruments Keystone2 Platforms"
+ depends on ARCH_KEYSTONE || COMPILE_TEST
default USB_DWC3
help
Support of USB2/3 functionality in TI Keystone2 platforms.
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 10aaaae9af25..eb69eb9f06c8 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -486,70 +486,20 @@ static void dwc3_core_exit(struct dwc3 *dwc)
phy_exit(dwc->usb3_generic_phy);
}
-#define DWC3_ALIGN_MASK (16 - 1)
-
-static int dwc3_probe(struct platform_device *pdev)
+static int dwc3_core_get_phy(struct dwc3 *dwc)
{
- struct device *dev = &pdev->dev;
- struct dwc3_platform_data *pdata = dev_get_platdata(dev);
+ struct device *dev = dwc->dev;
struct device_node *node = dev->of_node;
- struct resource *res;
- struct dwc3 *dwc;
-
- int ret = -ENOMEM;
-
- void __iomem *regs;
- void *mem;
-
- mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
- if (!mem) {
- dev_err(dev, "not enough memory\n");
- return -ENOMEM;
- }
- dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
- dwc->mem = mem;
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_err(dev, "missing IRQ\n");
- return -ENODEV;
- }
- dwc->xhci_resources[1].start = res->start;
- dwc->xhci_resources[1].end = res->end;
- dwc->xhci_resources[1].flags = res->flags;
- dwc->xhci_resources[1].name = res->name;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "missing memory resource\n");
- return -ENODEV;
- }
+ int ret;
if (node) {
- dwc->maximum_speed = of_usb_get_maximum_speed(node);
-
dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0);
dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1);
-
- dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
- dwc->dr_mode = of_usb_get_dr_mode(node);
- } else if (pdata) {
- dwc->maximum_speed = pdata->maximum_speed;
-
- dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
- dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
-
- dwc->needs_fifo_resize = pdata->tx_fifo_resize;
- dwc->dr_mode = pdata->dr_mode;
} else {
dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
}
- /* default to superspeed if no maximum_speed passed */
- if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
- dwc->maximum_speed = USB_SPEED_SUPER;
-
if (IS_ERR(dwc->usb2_phy)) {
ret = PTR_ERR(dwc->usb2_phy);
if (ret == -ENXIO || ret == -ENODEV) {
@@ -600,6 +550,132 @@ static int dwc3_probe(struct platform_device *pdev)
}
}
+ return 0;
+}
+
+static int dwc3_core_init_mode(struct dwc3 *dwc)
+{
+ struct device *dev = dwc->dev;
+ int ret;
+
+ switch (dwc->dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
+ ret = dwc3_gadget_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize gadget\n");
+ return ret;
+ }
+ break;
+ case USB_DR_MODE_HOST:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
+ ret = dwc3_host_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize host\n");
+ return ret;
+ }
+ break;
+ case USB_DR_MODE_OTG:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
+ ret = dwc3_host_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize host\n");
+ return ret;
+ }
+
+ ret = dwc3_gadget_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize gadget\n");
+ return ret;
+ }
+ break;
+ default:
+ dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void dwc3_core_exit_mode(struct dwc3 *dwc)
+{
+ switch (dwc->dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+ dwc3_gadget_exit(dwc);
+ break;
+ case USB_DR_MODE_HOST:
+ dwc3_host_exit(dwc);
+ break;
+ case USB_DR_MODE_OTG:
+ dwc3_host_exit(dwc);
+ dwc3_gadget_exit(dwc);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+}
+
+#define DWC3_ALIGN_MASK (16 - 1)
+
+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;
+
+ int ret;
+
+ void __iomem *regs;
+ void *mem;
+
+ mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
+ if (!mem) {
+ dev_err(dev, "not enough memory\n");
+ return -ENOMEM;
+ }
+ dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
+ dwc->mem = mem;
+ dwc->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(dev, "missing IRQ\n");
+ return -ENODEV;
+ }
+ dwc->xhci_resources[1].start = res->start;
+ dwc->xhci_resources[1].end = res->end;
+ dwc->xhci_resources[1].flags = res->flags;
+ dwc->xhci_resources[1].name = res->name;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "missing memory resource\n");
+ return -ENODEV;
+ }
+
+ if (node) {
+ dwc->maximum_speed = of_usb_get_maximum_speed(node);
+
+ dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
+ dwc->dr_mode = of_usb_get_dr_mode(node);
+ } else if (pdata) {
+ dwc->maximum_speed = pdata->maximum_speed;
+
+ dwc->needs_fifo_resize = pdata->tx_fifo_resize;
+ dwc->dr_mode = pdata->dr_mode;
+ }
+
+ /* default to superspeed if no maximum_speed passed */
+ if (dwc->maximum_speed == USB_SPEED_UNKNOWN)
+ dwc->maximum_speed = USB_SPEED_SUPER;
+
+ ret = dwc3_core_get_phy(dwc);
+ if (ret)
+ return ret;
+
dwc->xhci_resources[0].start = res->start;
dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
DWC3_XHCI_REGS_END;
@@ -621,7 +697,6 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->regs = regs;
dwc->regs_size = resource_size(res);
- dwc->dev = dev;
dev->dma_mask = dev->parent->dma_mask;
dev->dma_parms = dev->parent->dma_parms;
@@ -670,41 +745,9 @@ static int dwc3_probe(struct platform_device *pdev)
goto err_usb3phy_power;
}
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
- ret = dwc3_gadget_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize gadget\n");
- goto err2;
- }
- break;
- case USB_DR_MODE_HOST:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
- ret = dwc3_host_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize host\n");
- goto err2;
- }
- break;
- case USB_DR_MODE_OTG:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
- ret = dwc3_host_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize host\n");
- goto err2;
- }
-
- ret = dwc3_gadget_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize gadget\n");
- goto err2;
- }
- break;
- default:
- dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode);
+ ret = dwc3_core_init_mode(dwc);
+ if (ret)
goto err2;
- }
ret = dwc3_debugfs_init(dwc);
if (ret) {
@@ -717,21 +760,7 @@ static int dwc3_probe(struct platform_device *pdev)
return 0;
err3:
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_gadget_exit(dwc);
- break;
- case USB_DR_MODE_HOST:
- dwc3_host_exit(dwc);
- break;
- case USB_DR_MODE_OTG:
- dwc3_host_exit(dwc);
- dwc3_gadget_exit(dwc);
- break;
- default:
- /* do nothing */
- break;
- }
+ dwc3_core_exit_mode(dwc);
err2:
dwc3_event_buffers_cleanup(dwc);
@@ -766,23 +795,7 @@ static int dwc3_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
dwc3_debugfs_exit(dwc);
-
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_gadget_exit(dwc);
- break;
- case USB_DR_MODE_HOST:
- dwc3_host_exit(dwc);
- break;
- case USB_DR_MODE_OTG:
- dwc3_host_exit(dwc);
- dwc3_gadget_exit(dwc);
- break;
- default:
- /* do nothing */
- break;
- }
-
+ dwc3_core_exit_mode(dwc);
dwc3_event_buffers_cleanup(dwc);
dwc3_free_event_buffers(dwc);
dwc3_core_exit(dwc);
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 28c8ad79f5e6..f9fb8adb785b 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -24,9 +24,10 @@
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/usb/otg.h>
-#include <linux/usb/usb_phy_gen_xceiv.h>
+#include <linux/usb/usb_phy_generic.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/regulator/consumer.h>
struct dwc3_exynos {
struct platform_device *usb2_phy;
@@ -34,17 +35,19 @@ struct dwc3_exynos {
struct device *dev;
struct clk *clk;
+ struct regulator *vdd33;
+ struct regulator *vdd10;
};
static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos)
{
- struct usb_phy_gen_xceiv_platform_data pdata;
+ struct usb_phy_generic_platform_data pdata;
struct platform_device *pdev;
int ret;
memset(&pdata, 0x00, sizeof(pdata));
- pdev = platform_device_alloc("usb_phy_gen_xceiv", PLATFORM_DEVID_AUTO);
+ pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO);
if (!pdev)
return -ENOMEM;
@@ -56,7 +59,7 @@ static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos)
if (ret)
goto err1;
- pdev = platform_device_alloc("usb_phy_gen_xceiv", PLATFORM_DEVID_AUTO);
+ pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO);
if (!pdev) {
ret = -ENOMEM;
goto err1;
@@ -107,12 +110,12 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
- int ret = -ENOMEM;
+ int ret;
exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
if (!exynos) {
dev_err(dev, "not enough memory\n");
- goto err1;
+ return -ENOMEM;
}
/*
@@ -122,21 +125,20 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
*/
ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (ret)
- goto err1;
+ return ret;
platform_set_drvdata(pdev, exynos);
ret = dwc3_exynos_register_phys(exynos);
if (ret) {
dev_err(dev, "couldn't register PHYs\n");
- goto err1;
+ return ret;
}
clk = devm_clk_get(dev, "usbdrd30");
if (IS_ERR(clk)) {
dev_err(dev, "couldn't get clock\n");
- ret = -EINVAL;
- goto err1;
+ return -EINVAL;
}
exynos->dev = dev;
@@ -144,23 +146,48 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
clk_prepare_enable(exynos->clk);
+ exynos->vdd33 = devm_regulator_get(dev, "vdd33");
+ if (IS_ERR(exynos->vdd33)) {
+ ret = PTR_ERR(exynos->vdd33);
+ goto err2;
+ }
+ ret = regulator_enable(exynos->vdd33);
+ if (ret) {
+ dev_err(dev, "Failed to enable VDD33 supply\n");
+ goto err2;
+ }
+
+ exynos->vdd10 = devm_regulator_get(dev, "vdd10");
+ if (IS_ERR(exynos->vdd10)) {
+ ret = PTR_ERR(exynos->vdd10);
+ goto err3;
+ }
+ ret = regulator_enable(exynos->vdd10);
+ if (ret) {
+ dev_err(dev, "Failed to enable VDD10 supply\n");
+ goto err3;
+ }
+
if (node) {
ret = of_platform_populate(node, NULL, NULL, dev);
if (ret) {
dev_err(dev, "failed to add dwc3 core\n");
- goto err2;
+ goto err4;
}
} else {
dev_err(dev, "no device node, failed to add dwc3 core\n");
ret = -ENODEV;
- goto err2;
+ goto err4;
}
return 0;
+err4:
+ regulator_disable(exynos->vdd10);
+err3:
+ regulator_disable(exynos->vdd33);
err2:
clk_disable_unprepare(clk);
-err1:
return ret;
}
@@ -174,6 +201,9 @@ static int dwc3_exynos_remove(struct platform_device *pdev)
clk_disable_unprepare(exynos->clk);
+ regulator_disable(exynos->vdd33);
+ regulator_disable(exynos->vdd10);
+
return 0;
}
@@ -192,12 +222,27 @@ static int dwc3_exynos_suspend(struct device *dev)
clk_disable(exynos->clk);
+ regulator_disable(exynos->vdd33);
+ regulator_disable(exynos->vdd10);
+
return 0;
}
static int dwc3_exynos_resume(struct device *dev)
{
struct dwc3_exynos *exynos = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_enable(exynos->vdd33);
+ if (ret) {
+ dev_err(dev, "Failed to enable VDD33 supply\n");
+ return ret;
+ }
+ ret = regulator_enable(exynos->vdd10);
+ if (ret) {
+ dev_err(dev, "Failed to enable VDD10 supply\n");
+ return ret;
+ }
clk_enable(exynos->clk);
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 1160ff41bed4..4af4c3567656 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -393,7 +393,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
struct extcon_dev *edev;
struct regulator *vbus_reg = NULL;
- int ret = -ENOMEM;
+ int ret;
int irq;
int utmi_mode = 0;
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index f393c183cc69..a60bab7dfa0a 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -23,7 +23,7 @@
#include <linux/platform_device.h>
#include <linux/usb/otg.h>
-#include <linux/usb/usb_phy_gen_xceiv.h>
+#include <linux/usb/usb_phy_generic.h>
/* FIXME define these in <linux/pci_ids.h> */
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
@@ -40,13 +40,13 @@ struct dwc3_pci {
static int dwc3_pci_register_phys(struct dwc3_pci *glue)
{
- struct usb_phy_gen_xceiv_platform_data pdata;
+ struct usb_phy_generic_platform_data pdata;
struct platform_device *pdev;
int ret;
memset(&pdata, 0x00, sizeof(pdata));
- pdev = platform_device_alloc("usb_phy_gen_xceiv", 0);
+ pdev = platform_device_alloc("usb_phy_generic", 0);
if (!pdev)
return -ENOMEM;
@@ -58,7 +58,7 @@ static int dwc3_pci_register_phys(struct dwc3_pci *glue)
if (ret)
goto err1;
- pdev = platform_device_alloc("usb_phy_gen_xceiv", 1);
+ pdev = platform_device_alloc("usb_phy_generic", 1);
if (!pdev) {
ret = -ENOMEM;
goto err1;
@@ -99,7 +99,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
struct resource res[2];
struct platform_device *dwc3;
struct dwc3_pci *glue;
- int ret = -ENOMEM;
+ int ret;
struct device *dev = &pci->dev;
glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
@@ -110,7 +110,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
glue->dev = dev;
- ret = pci_enable_device(pci);
+ ret = pcim_enable_device(pci);
if (ret) {
dev_err(dev, "failed to enable pci device\n");
return -ENODEV;
@@ -127,8 +127,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
if (!dwc3) {
dev_err(dev, "couldn't allocate dwc3 device\n");
- ret = -ENOMEM;
- goto err1;
+ return -ENOMEM;
}
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
@@ -145,7 +144,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
if (ret) {
dev_err(dev, "couldn't add resources to dwc3 device\n");
- goto err1;
+ return ret;
}
pci_set_drvdata(pci, glue);
@@ -167,9 +166,6 @@ static int dwc3_pci_probe(struct pci_dev *pci,
err3:
platform_device_put(dwc3);
-err1:
- pci_disable_device(pci);
-
return ret;
}
@@ -180,7 +176,6 @@ static void dwc3_pci_remove(struct pci_dev *pci)
platform_device_unregister(glue->dwc3);
platform_device_unregister(glue->usb2_phy);
platform_device_unregister(glue->usb3_phy);
- pci_disable_device(pci);
}
static const struct pci_device_id dwc3_pci_id_table[] = {
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 70715eeededd..9d64dd02c57e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -298,11 +298,76 @@ static const char *dwc3_gadget_ep_cmd_string(u8 cmd)
}
}
+static const char *dwc3_gadget_generic_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ case DWC3_DGCMD_SET_LMP:
+ return "Set LMP";
+ case DWC3_DGCMD_SET_PERIODIC_PAR:
+ return "Set Periodic Parameters";
+ case DWC3_DGCMD_XMIT_FUNCTION:
+ return "Transmit Function Wake Device Notification";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
+ return "Set Scratchpad Buffer Array Address Lo";
+ case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
+ return "Set Scratchpad Buffer Array Address Hi";
+ case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
+ return "Selected FIFO Flush";
+ case DWC3_DGCMD_ALL_FIFO_FLUSH:
+ return "All FIFO Flush";
+ case DWC3_DGCMD_SET_ENDPOINT_NRDY:
+ return "Set Endpoint NRDY";
+ case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
+ return "Run SoC Bus Loopback Test";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static const char *dwc3_gadget_link_string(enum dwc3_link_state link_state)
+{
+ switch (link_state) {
+ case DWC3_LINK_STATE_U0:
+ return "U0";
+ case DWC3_LINK_STATE_U1:
+ return "U1";
+ case DWC3_LINK_STATE_U2:
+ return "U2";
+ case DWC3_LINK_STATE_U3:
+ return "U3";
+ case DWC3_LINK_STATE_SS_DIS:
+ return "SS.Disabled";
+ case DWC3_LINK_STATE_RX_DET:
+ return "RX.Detect";
+ case DWC3_LINK_STATE_SS_INACT:
+ return "SS.Inactive";
+ case DWC3_LINK_STATE_POLL:
+ return "Polling";
+ case DWC3_LINK_STATE_RECOV:
+ return "Recovery";
+ case DWC3_LINK_STATE_HRESET:
+ return "Hot Reset";
+ case DWC3_LINK_STATE_CMPLY:
+ return "Compliance";
+ case DWC3_LINK_STATE_LPBK:
+ return "Loopback";
+ case DWC3_LINK_STATE_RESET:
+ return "Reset";
+ case DWC3_LINK_STATE_RESUME:
+ return "Resume";
+ default:
+ return "UNKNOWN link state\n";
+ }
+}
+
int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param)
{
u32 timeout = 500;
u32 reg;
+ dev_vdbg(dwc->dev, "generic cmd '%s' [%d] param %08x\n",
+ dwc3_gadget_generic_cmd_string(cmd), cmd, param);
+
dwc3_writel(dwc->regs, DWC3_DGCMDPAR, param);
dwc3_writel(dwc->regs, DWC3_DGCMD, cmd | DWC3_DGCMD_CMDACT);
@@ -332,9 +397,9 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
u32 timeout = 500;
u32 reg;
- dev_vdbg(dwc->dev, "%s: cmd '%s' params %08x %08x %08x\n",
+ dev_vdbg(dwc->dev, "%s: cmd '%s' [%d] params %08x %08x %08x\n",
dep->name,
- dwc3_gadget_ep_cmd_string(cmd), params->param0,
+ dwc3_gadget_ep_cmd_string(cmd), cmd, params->param0,
params->param1, params->param2);
dwc3_writel(dwc->regs, DWC3_DEPCMDPAR0(ep), params->param0);
@@ -515,7 +580,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
{
struct dwc3 *dwc = dep->dwc;
u32 reg;
- int ret = -ENOMEM;
+ int ret;
dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);
@@ -604,6 +669,10 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
dwc3_remove_requests(dwc, dep);
+ /* make sure HW endpoint isn't stalled */
+ if (dep->flags & DWC3_EP_STALL)
+ __dwc3_gadget_ep_set_halt(dep, 0);
+
reg = dwc3_readl(dwc->regs, DWC3_DALEPENA);
reg &= ~DWC3_DALEPENA_EP(dep->number);
dwc3_writel(dwc->regs, DWC3_DALEPENA, reg);
@@ -2441,8 +2510,6 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
}
}
- dwc->link_state = next;
-
switch (next) {
case DWC3_LINK_STATE_U1:
if (dwc->speed == USB_SPEED_SUPER)
@@ -2460,7 +2527,11 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
break;
}
- dev_vdbg(dwc->dev, "%s link %d\n", __func__, dwc->link_state);
+ dev_vdbg(dwc->dev, "link change: %s [%d] -> %s [%d]\n",
+ dwc3_gadget_link_string(dwc->link_state),
+ dwc->link_state, dwc3_gadget_link_string(next), next);
+
+ dwc->link_state = next;
}
static void dwc3_gadget_hibernation_interrupt(struct dwc3 *dwc,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 05:31:16 +0100