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path: root/drivers/usb/dwc3
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-rw-r--r--drivers/usb/dwc3/Kconfig2
-rw-r--r--drivers/usb/dwc3/core.c412
-rw-r--r--drivers/usb/dwc3/core.h25
-rw-r--r--drivers/usb/dwc3/drd.c15
-rw-r--r--drivers/usb/dwc3/dwc3-am62.c42
-rw-r--r--drivers/usb/dwc3/dwc3-exynos.c22
-rw-r--r--drivers/usb/dwc3/dwc3-of-simple.c4
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c10
-rw-r--r--drivers/usb/dwc3/dwc3-qcom.c505
-rw-r--r--drivers/usb/dwc3/ep0.c4
-rw-r--r--drivers/usb/dwc3/gadget.c107
-rw-r--r--drivers/usb/dwc3/gadget.h1
-rw-r--r--drivers/usb/dwc3/host.c88
-rw-r--r--drivers/usb/dwc3/trace.h8
14 files changed, 689 insertions, 556 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 5fc27b20df63..31078f3d41b8 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -131,7 +131,7 @@ config USB_DWC3_QCOM
tristate "Qualcomm Platform"
depends on ARCH_QCOM || COMPILE_TEST
depends on EXTCON || !EXTCON
- depends on (OF || ACPI)
+ depends on OF
default USB_DWC3
help
Some Qualcomm SoCs use DesignWare Core IP for USB2/3
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 3e55838c0001..7ee61a89520b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -39,6 +39,7 @@
#include "io.h"
#include "debug.h"
+#include "../host/xhci-ext-caps.h"
#define DWC3_DEFAULT_AUTOSUSPEND_DELAY 5000 /* ms */
@@ -104,6 +105,27 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc)
return 0;
}
+void dwc3_enable_susphy(struct dwc3 *dwc, bool enable)
+{
+ u32 reg;
+
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
+ if (enable && !dwc->dis_u3_susphy_quirk)
+ reg |= DWC3_GUSB3PIPECTL_SUSPHY;
+ else
+ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
+
+ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
+
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ if (enable && !dwc->dis_u2_susphy_quirk)
+ reg |= DWC3_GUSB2PHYCFG_SUSPHY;
+ else
+ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+}
+
void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode)
{
u32 reg;
@@ -123,6 +145,7 @@ static void __dwc3_set_mode(struct work_struct *work)
int ret;
u32 reg;
u32 desired_dr_role;
+ int i;
mutex_lock(&dwc->mutex);
spin_lock_irqsave(&dwc->lock, flags);
@@ -200,8 +223,12 @@ static void __dwc3_set_mode(struct work_struct *work)
} else {
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, true);
- phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
- phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST);
+
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_set_mode(dwc->usb2_generic_phy[i], PHY_MODE_USB_HOST);
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_set_mode(dwc->usb3_generic_phy[i], PHY_MODE_USB_HOST);
+
if (dwc->dis_split_quirk) {
reg = dwc3_readl(dwc->regs, DWC3_GUCTL3);
reg |= DWC3_GUCTL3_SPLITDISABLE;
@@ -216,8 +243,8 @@ static void __dwc3_set_mode(struct work_struct *work)
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, false);
- phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
- phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE);
+ phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE);
+ phy_set_mode(dwc->usb3_generic_phy[0], PHY_MODE_USB_DEVICE);
ret = dwc3_gadget_init(dwc);
if (ret)
@@ -485,6 +512,13 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned int length)
{
struct dwc3_event_buffer *evt;
+ unsigned int hw_mode;
+
+ hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) {
+ dwc->ev_buf = NULL;
+ return 0;
+ }
evt = dwc3_alloc_one_event_buffer(dwc, length);
if (IS_ERR(evt)) {
@@ -506,6 +540,9 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
+ if (!dwc->ev_buf)
+ return 0;
+
evt = dwc->ev_buf;
evt->lpos = 0;
dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(0),
@@ -523,6 +560,9 @@ void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
{
struct dwc3_event_buffer *evt;
+ if (!dwc->ev_buf)
+ return;
+
evt = dwc->ev_buf;
evt->lpos = 0;
@@ -575,22 +615,11 @@ static int dwc3_core_ulpi_init(struct dwc3 *dwc)
return ret;
}
-/**
- * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
- * @dwc: Pointer to our controller context structure
- *
- * Returns 0 on success. The USB PHY interfaces are configured but not
- * initialized. The PHY interfaces and the PHYs get initialized together with
- * the core in dwc3_core_init.
- */
-static int dwc3_phy_setup(struct dwc3 *dwc)
+static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index)
{
- unsigned int hw_mode;
u32 reg;
- hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
-
- reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(index));
/*
* Make sure UX_EXIT_PX is cleared as that causes issues with some
@@ -599,21 +628,16 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
reg &= ~DWC3_GUSB3PIPECTL_UX_EXIT_PX;
/*
- * Above 1.94a, it is recommended to set DWC3_GUSB3PIPECTL_SUSPHY
- * to '0' during coreConsultant configuration. So default value
- * will be '0' when the core is reset. Application needs to set it
- * to '1' after the core initialization is completed.
- */
- if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A))
- reg |= DWC3_GUSB3PIPECTL_SUSPHY;
-
- /*
- * For DRD controllers, GUSB3PIPECTL.SUSPENDENABLE must be cleared after
- * power-on reset, and it can be set after core initialization, which is
- * after device soft-reset during initialization.
+ * Above DWC_usb3.0 1.94a, it is recommended to set
+ * DWC3_GUSB3PIPECTL_SUSPHY to '0' during coreConsultant configuration.
+ * So default value will be '0' when the core is reset. Application
+ * needs to set it to '1' after the core initialization is completed.
+ *
+ * Similarly for DRD controllers, GUSB3PIPECTL.SUSPENDENABLE must be
+ * cleared after power-on reset, and it can be set after core
+ * initialization.
*/
- if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD)
- reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
+ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
if (dwc->u2ss_inp3_quirk)
reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK;
@@ -639,15 +663,19 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->tx_de_emphasis_quirk)
reg |= DWC3_GUSB3PIPECTL_TX_DEEPH(dwc->tx_de_emphasis);
- if (dwc->dis_u3_susphy_quirk)
- reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
-
if (dwc->dis_del_phy_power_chg_quirk)
reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE;
- dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
+ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(index), reg);
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ return 0;
+}
+
+static int dwc3_hs_phy_setup(struct dwc3 *dwc, int index)
+{
+ u32 reg;
+
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(index));
/* Select the HS PHY interface */
switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) {
@@ -659,7 +687,7 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
} else if (dwc->hsphy_interface &&
!strncmp(dwc->hsphy_interface, "ulpi", 4)) {
reg |= DWC3_GUSB2PHYCFG_ULPI_UTMI;
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(index), reg);
} else {
/* Relying on default value. */
if (!(reg & DWC3_GUSB2PHYCFG_ULPI_UTMI))
@@ -689,24 +717,15 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
}
/*
- * Above 1.94a, it is recommended to set DWC3_GUSB2PHYCFG_SUSPHY to
- * '0' during coreConsultant configuration. So default value will
- * be '0' when the core is reset. Application needs to set it to
- * '1' after the core initialization is completed.
- */
- if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A))
- reg |= DWC3_GUSB2PHYCFG_SUSPHY;
-
- /*
- * For DRD controllers, GUSB2PHYCFG.SUSPHY must be cleared after
- * power-on reset, and it can be set after core initialization, which is
- * after device soft-reset during initialization.
+ * Above DWC_usb3.0 1.94a, it is recommended to set
+ * DWC3_GUSB2PHYCFG_SUSPHY to '0' during coreConsultant configuration.
+ * So default value will be '0' when the core is reset. Application
+ * needs to set it to '1' after the core initialization is completed.
+ *
+ * Similarly for DRD controllers, GUSB2PHYCFG.SUSPHY must be cleared
+ * after power-on reset, and it can be set after core initialization.
*/
- if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD)
- reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
-
- if (dwc->dis_u2_susphy_quirk)
- reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
if (dwc->dis_enblslpm_quirk)
reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
@@ -726,7 +745,35 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->ulpi_ext_vbus_drv)
reg |= DWC3_GUSB2PHYCFG_ULPIEXTVBUSDRV;
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(index), reg);
+
+ return 0;
+}
+
+/**
+ * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
+ * @dwc: Pointer to our controller context structure
+ *
+ * Returns 0 on success. The USB PHY interfaces are configured but not
+ * initialized. The PHY interfaces and the PHYs get initialized together with
+ * the core in dwc3_core_init.
+ */
+static int dwc3_phy_setup(struct dwc3 *dwc)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < dwc->num_usb3_ports; i++) {
+ ret = dwc3_ss_phy_setup(dwc, i);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ ret = dwc3_hs_phy_setup(dwc, i);
+ if (ret)
+ return ret;
+ }
return 0;
}
@@ -734,23 +781,34 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
static int dwc3_phy_init(struct dwc3 *dwc)
{
int ret;
+ int i;
+ int j;
usb_phy_init(dwc->usb2_phy);
usb_phy_init(dwc->usb3_phy);
- ret = phy_init(dwc->usb2_generic_phy);
- if (ret < 0)
- goto err_shutdown_usb3_phy;
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ ret = phy_init(dwc->usb2_generic_phy[i]);
+ if (ret < 0)
+ goto err_exit_usb2_phy;
+ }
- ret = phy_init(dwc->usb3_generic_phy);
- if (ret < 0)
- goto err_exit_usb2_phy;
+ for (j = 0; j < dwc->num_usb3_ports; j++) {
+ ret = phy_init(dwc->usb3_generic_phy[j]);
+ if (ret < 0)
+ goto err_exit_usb3_phy;
+ }
return 0;
+err_exit_usb3_phy:
+ while (--j >= 0)
+ phy_exit(dwc->usb3_generic_phy[j]);
+
err_exit_usb2_phy:
- phy_exit(dwc->usb2_generic_phy);
-err_shutdown_usb3_phy:
+ while (--i >= 0)
+ phy_exit(dwc->usb2_generic_phy[i]);
+
usb_phy_shutdown(dwc->usb3_phy);
usb_phy_shutdown(dwc->usb2_phy);
@@ -759,8 +817,13 @@ err_shutdown_usb3_phy:
static void dwc3_phy_exit(struct dwc3 *dwc)
{
- phy_exit(dwc->usb3_generic_phy);
- phy_exit(dwc->usb2_generic_phy);
+ int i;
+
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_exit(dwc->usb3_generic_phy[i]);
+
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_exit(dwc->usb2_generic_phy[i]);
usb_phy_shutdown(dwc->usb3_phy);
usb_phy_shutdown(dwc->usb2_phy);
@@ -769,23 +832,34 @@ static void dwc3_phy_exit(struct dwc3 *dwc)
static int dwc3_phy_power_on(struct dwc3 *dwc)
{
int ret;
+ int i;
+ int j;
usb_phy_set_suspend(dwc->usb2_phy, 0);
usb_phy_set_suspend(dwc->usb3_phy, 0);
- ret = phy_power_on(dwc->usb2_generic_phy);
- if (ret < 0)
- goto err_suspend_usb3_phy;
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ ret = phy_power_on(dwc->usb2_generic_phy[i]);
+ if (ret < 0)
+ goto err_power_off_usb2_phy;
+ }
- ret = phy_power_on(dwc->usb3_generic_phy);
- if (ret < 0)
- goto err_power_off_usb2_phy;
+ for (j = 0; j < dwc->num_usb3_ports; j++) {
+ ret = phy_power_on(dwc->usb3_generic_phy[j]);
+ if (ret < 0)
+ goto err_power_off_usb3_phy;
+ }
return 0;
+err_power_off_usb3_phy:
+ while (--j >= 0)
+ phy_power_off(dwc->usb3_generic_phy[j]);
+
err_power_off_usb2_phy:
- phy_power_off(dwc->usb2_generic_phy);
-err_suspend_usb3_phy:
+ while (--i >= 0)
+ phy_power_off(dwc->usb2_generic_phy[i]);
+
usb_phy_set_suspend(dwc->usb3_phy, 1);
usb_phy_set_suspend(dwc->usb2_phy, 1);
@@ -794,8 +868,13 @@ err_suspend_usb3_phy:
static void dwc3_phy_power_off(struct dwc3 *dwc)
{
- phy_power_off(dwc->usb3_generic_phy);
- phy_power_off(dwc->usb2_generic_phy);
+ int i;
+
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_power_off(dwc->usb3_generic_phy[i]);
+
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_power_off(dwc->usb2_generic_phy[i]);
usb_phy_set_suspend(dwc->usb3_phy, 1);
usb_phy_set_suspend(dwc->usb2_phy, 1);
@@ -1227,21 +1306,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (ret)
goto err_exit_phy;
- if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD &&
- !DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) {
- if (!dwc->dis_u3_susphy_quirk) {
- reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
- reg |= DWC3_GUSB3PIPECTL_SUSPHY;
- dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
- }
-
- if (!dwc->dis_u2_susphy_quirk) {
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
- reg |= DWC3_GUSB2PHYCFG_SUSPHY;
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
- }
- }
-
dwc3_core_setup_global_control(dwc);
dwc3_core_num_eps(dwc);
@@ -1320,10 +1384,13 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (dwc->parkmode_disable_hs_quirk)
reg |= DWC3_GUCTL1_PARKMODE_DISABLE_HS;
- if (DWC3_VER_IS_WITHIN(DWC3, 290A, ANY) &&
- (dwc->maximum_speed == USB_SPEED_HIGH ||
- dwc->maximum_speed == USB_SPEED_FULL))
- reg |= DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK;
+ if (DWC3_VER_IS_WITHIN(DWC3, 290A, ANY)) {
+ if (dwc->maximum_speed == USB_SPEED_FULL ||
+ dwc->maximum_speed == USB_SPEED_HIGH)
+ reg |= DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK;
+ else
+ reg &= ~DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK;
+ }
dwc3_writel(dwc->regs, DWC3_GUCTL1, reg);
}
@@ -1358,7 +1425,9 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
{
struct device *dev = dwc->dev;
struct device_node *node = dev->of_node;
+ char phy_name[9];
int ret;
+ u8 i;
if (node) {
dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0);
@@ -1384,22 +1453,38 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
return dev_err_probe(dev, ret, "no usb3 phy configured\n");
}
- dwc->usb2_generic_phy = devm_phy_get(dev, "usb2-phy");
- if (IS_ERR(dwc->usb2_generic_phy)) {
- ret = PTR_ERR(dwc->usb2_generic_phy);
- if (ret == -ENOSYS || ret == -ENODEV)
- dwc->usb2_generic_phy = NULL;
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ if (dwc->num_usb2_ports == 1)
+ snprintf(phy_name, sizeof(phy_name), "usb2-phy");
else
- return dev_err_probe(dev, ret, "no usb2 phy configured\n");
+ snprintf(phy_name, sizeof(phy_name), "usb2-%u", i);
+
+ dwc->usb2_generic_phy[i] = devm_phy_get(dev, phy_name);
+ if (IS_ERR(dwc->usb2_generic_phy[i])) {
+ ret = PTR_ERR(dwc->usb2_generic_phy[i]);
+ if (ret == -ENOSYS || ret == -ENODEV)
+ dwc->usb2_generic_phy[i] = NULL;
+ else
+ return dev_err_probe(dev, ret, "failed to lookup phy %s\n",
+ phy_name);
+ }
}
- dwc->usb3_generic_phy = devm_phy_get(dev, "usb3-phy");
- if (IS_ERR(dwc->usb3_generic_phy)) {
- ret = PTR_ERR(dwc->usb3_generic_phy);
- if (ret == -ENOSYS || ret == -ENODEV)
- dwc->usb3_generic_phy = NULL;
+ for (i = 0; i < dwc->num_usb3_ports; i++) {
+ if (dwc->num_usb3_ports == 1)
+ snprintf(phy_name, sizeof(phy_name), "usb3-phy");
else
- return dev_err_probe(dev, ret, "no usb3 phy configured\n");
+ snprintf(phy_name, sizeof(phy_name), "usb3-%u", i);
+
+ dwc->usb3_generic_phy[i] = devm_phy_get(dev, phy_name);
+ if (IS_ERR(dwc->usb3_generic_phy[i])) {
+ ret = PTR_ERR(dwc->usb3_generic_phy[i]);
+ if (ret == -ENOSYS || ret == -ENODEV)
+ dwc->usb3_generic_phy[i] = NULL;
+ else
+ return dev_err_probe(dev, ret, "failed to lookup phy %s\n",
+ phy_name);
+ }
}
return 0;
@@ -1409,6 +1494,7 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
{
struct device *dev = dwc->dev;
int ret;
+ int i;
switch (dwc->dr_mode) {
case USB_DR_MODE_PERIPHERAL:
@@ -1416,8 +1502,8 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, false);
- phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
- phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE);
+ phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE);
+ phy_set_mode(dwc->usb3_generic_phy[0], PHY_MODE_USB_DEVICE);
ret = dwc3_gadget_init(dwc);
if (ret)
@@ -1428,8 +1514,10 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, true);
- phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
- phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST);
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_set_mode(dwc->usb2_generic_phy[i], PHY_MODE_USB_HOST);
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_set_mode(dwc->usb3_generic_phy[i], PHY_MODE_USB_HOST);
ret = dwc3_host_init(dwc);
if (ret)
@@ -1519,6 +1607,8 @@ static void dwc3_get_properties(struct dwc3 *dwc)
else
dwc->sysdev = dwc->dev;
+ dwc->sys_wakeup = device_may_wakeup(dwc->sysdev);
+
ret = device_property_read_string(dev, "usb-psy-name", &usb_psy_name);
if (ret >= 0) {
dwc->usb_psy = power_supply_get_by_name(usb_psy_name);
@@ -1879,10 +1969,60 @@ static int dwc3_get_clocks(struct dwc3 *dwc)
return 0;
}
+static int dwc3_get_num_ports(struct dwc3 *dwc)
+{
+ void __iomem *base;
+ u8 major_revision;
+ u32 offset;
+ u32 val;
+
+ /*
+ * Remap xHCI address space to access XHCI ext cap regs since it is
+ * needed to get information on number of ports present.
+ */
+ base = ioremap(dwc->xhci_resources[0].start,
+ resource_size(&dwc->xhci_resources[0]));
+ if (!base)
+ return -ENOMEM;
+
+ offset = 0;
+ do {
+ offset = xhci_find_next_ext_cap(base, offset,
+ XHCI_EXT_CAPS_PROTOCOL);
+ if (!offset)
+ break;
+
+ val = readl(base + offset);
+ major_revision = XHCI_EXT_PORT_MAJOR(val);
+
+ val = readl(base + offset + 0x08);
+ if (major_revision == 0x03) {
+ dwc->num_usb3_ports += XHCI_EXT_PORT_COUNT(val);
+ } else if (major_revision <= 0x02) {
+ dwc->num_usb2_ports += XHCI_EXT_PORT_COUNT(val);
+ } else {
+ dev_warn(dwc->dev, "unrecognized port major revision %d\n",
+ major_revision);
+ }
+ } while (1);
+
+ dev_dbg(dwc->dev, "hs-ports: %u ss-ports: %u\n",
+ dwc->num_usb2_ports, dwc->num_usb3_ports);
+
+ iounmap(base);
+
+ if (dwc->num_usb2_ports > DWC3_USB2_MAX_PORTS ||
+ dwc->num_usb3_ports > DWC3_USB3_MAX_PORTS)
+ return -EINVAL;
+
+ return 0;
+}
+
static int dwc3_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res, dwc_res;
+ unsigned int hw_mode;
void __iomem *regs;
struct dwc3 *dwc;
int ret;
@@ -1966,6 +2106,20 @@ static int dwc3_probe(struct platform_device *pdev)
goto err_disable_clks;
}
+ /*
+ * Currently only DWC3 controllers that are host-only capable
+ * can have more than one port.
+ */
+ hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
+ if (hw_mode == DWC3_GHWPARAMS0_MODE_HOST) {
+ ret = dwc3_get_num_ports(dwc);
+ if (ret)
+ goto err_disable_clks;
+ } else {
+ dwc->num_usb2_ports = 1;
+ dwc->num_usb3_ports = 1;
+ }
+
spin_lock_init(&dwc->lock);
mutex_init(&dwc->mutex);
@@ -2098,6 +2252,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
{
unsigned long flags;
u32 reg;
+ int i;
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
@@ -2116,17 +2271,21 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
/* Let controller to suspend HSPHY before PHY driver suspends */
if (dwc->dis_u2_susphy_quirk ||
dwc->dis_enblslpm_quirk) {
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
- reg |= DWC3_GUSB2PHYCFG_ENBLSLPM |
- DWC3_GUSB2PHYCFG_SUSPHY;
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i));
+ reg |= DWC3_GUSB2PHYCFG_ENBLSLPM |
+ DWC3_GUSB2PHYCFG_SUSPHY;
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg);
+ }
/* Give some time for USB2 PHY to suspend */
usleep_range(5000, 6000);
}
- phy_pm_runtime_put_sync(dwc->usb2_generic_phy);
- phy_pm_runtime_put_sync(dwc->usb3_generic_phy);
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_pm_runtime_put_sync(dwc->usb2_generic_phy[i]);
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_pm_runtime_put_sync(dwc->usb3_generic_phy[i]);
break;
case DWC3_GCTL_PRTCAP_OTG:
/* do nothing during runtime_suspend */
@@ -2156,6 +2315,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg)
unsigned long flags;
int ret;
u32 reg;
+ int i;
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
@@ -2175,17 +2335,21 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg)
break;
}
/* Restore GUSB2PHYCFG bits that were modified in suspend */
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
- if (dwc->dis_u2_susphy_quirk)
- reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i));
+ if (dwc->dis_u2_susphy_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
- if (dwc->dis_enblslpm_quirk)
- reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+ if (dwc->dis_enblslpm_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg);
+ }
- phy_pm_runtime_get_sync(dwc->usb2_generic_phy);
- phy_pm_runtime_get_sync(dwc->usb3_generic_phy);
+ for (i = 0; i < dwc->num_usb2_ports; i++)
+ phy_pm_runtime_get_sync(dwc->usb2_generic_phy[i]);
+ for (i = 0; i < dwc->num_usb3_ports; i++)
+ phy_pm_runtime_get_sync(dwc->usb3_generic_phy[i]);
break;
case DWC3_GCTL_PRTCAP_OTG:
/* nothing to do on runtime_resume */
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index e120611a5174..3781c736c1a1 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -33,6 +33,13 @@
#include <linux/power_supply.h>
+/*
+ * DWC3 Multiport controllers support up to 15 High-Speed PHYs
+ * and 4 SuperSpeed PHYs.
+ */
+#define DWC3_USB2_MAX_PORTS 15
+#define DWC3_USB3_MAX_PORTS 4
+
#define DWC3_MSG_MAX 500
/* Global constants */
@@ -755,6 +762,7 @@ struct dwc3_ep {
#define DWC3_EP_PENDING_CLEAR_STALL BIT(11)
#define DWC3_EP_TXFIFO_RESIZED BIT(12)
#define DWC3_EP_DELAY_STOP BIT(13)
+#define DWC3_EP_RESOURCE_ALLOCATED BIT(14)
/* This last one is specific to EP0 */
#define DWC3_EP0_DIR_IN BIT(31)
@@ -1036,8 +1044,10 @@ struct dwc3_scratchpad_array {
* @usb_psy: pointer to power supply interface.
* @usb2_phy: pointer to USB2 PHY
* @usb3_phy: pointer to USB3 PHY
- * @usb2_generic_phy: pointer to USB2 PHY
- * @usb3_generic_phy: pointer to USB3 PHY
+ * @usb2_generic_phy: pointer to array of USB2 PHYs
+ * @usb3_generic_phy: pointer to array of USB3 PHYs
+ * @num_usb2_ports: number of USB2 ports
+ * @num_usb3_ports: number of USB3 ports
* @phys_ready: flag to indicate that PHYs are ready
* @ulpi: pointer to ulpi interface
* @ulpi_ready: flag to indicate that ULPI is initialized
@@ -1132,6 +1142,7 @@ struct dwc3_scratchpad_array {
* 3 - Reserved
* @dis_metastability_quirk: set to disable metastability quirk.
* @dis_split_quirk: set to disable split boundary.
+ * @sys_wakeup: set if the device may do system wakeup.
* @wakeup_configured: set if the device is configured for remote wakeup.
* @suspended: set to track suspend event due to U3/L2.
* @imod_interval: set the interrupt moderation interval in 250ns
@@ -1182,8 +1193,11 @@ struct dwc3 {
struct usb_phy *usb2_phy;
struct usb_phy *usb3_phy;
- struct phy *usb2_generic_phy;
- struct phy *usb3_generic_phy;
+ struct phy *usb2_generic_phy[DWC3_USB2_MAX_PORTS];
+ struct phy *usb3_generic_phy[DWC3_USB3_MAX_PORTS];
+
+ u8 num_usb2_ports;
+ u8 num_usb3_ports;
bool phys_ready;
@@ -1257,6 +1271,7 @@ struct dwc3 {
#define DWC31_REVISION_170A 0x3137302a
#define DWC31_REVISION_180A 0x3138302a
#define DWC31_REVISION_190A 0x3139302a
+#define DWC31_REVISION_200A 0x3230302a
#define DWC32_REVISION_ANY 0x0
#define DWC32_REVISION_100A 0x3130302a
@@ -1355,6 +1370,7 @@ struct dwc3 {
unsigned dis_split_quirk:1;
unsigned async_callbacks:1;
+ unsigned sys_wakeup:1;
unsigned wakeup_configured:1;
unsigned suspended:1;
@@ -1576,6 +1592,7 @@ int dwc3_event_buffers_setup(struct dwc3 *dwc);
void dwc3_event_buffers_cleanup(struct dwc3 *dwc);
int dwc3_core_soft_reset(struct dwc3 *dwc);
+void dwc3_enable_susphy(struct dwc3 *dwc, bool enable);
#if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
int dwc3_host_init(struct dwc3 *dwc);
diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c
index 57ddd2e43022..d76ae676783c 100644
--- a/drivers/usb/dwc3/drd.c
+++ b/drivers/usb/dwc3/drd.c
@@ -331,6 +331,7 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus)
u32 reg;
int id;
unsigned long flags;
+ int i;
if (dwc->dr_mode != USB_DR_MODE_OTG)
return;
@@ -386,9 +387,12 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus)
} else {
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, true);
- if (dwc->usb2_generic_phy)
- phy_set_mode(dwc->usb2_generic_phy,
- PHY_MODE_USB_HOST);
+ for (i = 0; i < dwc->num_usb2_ports; i++) {
+ if (dwc->usb2_generic_phy[i]) {
+ phy_set_mode(dwc->usb2_generic_phy[i],
+ PHY_MODE_USB_HOST);
+ }
+ }
}
break;
case DWC3_OTG_ROLE_DEVICE:
@@ -400,9 +404,8 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus)
if (dwc->usb2_phy)
otg_set_vbus(dwc->usb2_phy->otg, false);
- if (dwc->usb2_generic_phy)
- phy_set_mode(dwc->usb2_generic_phy,
- PHY_MODE_USB_DEVICE);
+ if (dwc->usb2_generic_phy[0])
+ phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE);
ret = dwc3_gadget_init(dwc);
if (ret)
dev_err(dwc->dev, "failed to initialize peripheral\n");
diff --git a/drivers/usb/dwc3/dwc3-am62.c b/drivers/usb/dwc3/dwc3-am62.c
index 90a587bc29b7..fad151e78fd6 100644
--- a/drivers/usb/dwc3/dwc3-am62.c
+++ b/drivers/usb/dwc3/dwc3-am62.c
@@ -97,9 +97,15 @@
#define USBSS_VBUS_STAT_SESSVALID BIT(2)
#define USBSS_VBUS_STAT_VBUSVALID BIT(0)
-/* Mask for PHY PLL REFCLK */
+/* USB_PHY_CTRL register bits in CTRL_MMR */
+#define PHY_CORE_VOLTAGE_MASK BIT(31)
#define PHY_PLL_REFCLK_MASK GENMASK(3, 0)
+/* USB PHY2 register offsets */
+#define USB_PHY_PLL_REG12 0x130
+#define USB_PHY_PLL_LDO_REF_EN BIT(5)
+#define USB_PHY_PLL_LDO_REF_EN_EN BIT(4)
+
#define DWC3_AM62_AUTOSUSPEND_DELAY 100
struct dwc3_am62 {
@@ -162,6 +168,13 @@ static int phy_syscon_pll_refclk(struct dwc3_am62 *am62)
am62->offset = args.args[0];
+ /* Core voltage. PHY_CORE_VOLTAGE bit Recommended to be 0 always */
+ ret = regmap_update_bits(am62->syscon, am62->offset, PHY_CORE_VOLTAGE_MASK, 0);
+ if (ret) {
+ dev_err(dev, "failed to set phy core voltage\n");
+ return ret;
+ }
+
ret = regmap_update_bits(am62->syscon, am62->offset, PHY_PLL_REFCLK_MASK, am62->rate_code);
if (ret) {
dev_err(dev, "failed to set phy pll reference clock rate\n");
@@ -176,8 +189,9 @@ static int dwc3_ti_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *node = pdev->dev.of_node;
struct dwc3_am62 *am62;
- int i, ret;
unsigned long rate;
+ void __iomem *phy;
+ int i, ret;
u32 reg;
am62 = devm_kzalloc(dev, sizeof(*am62), GFP_KERNEL);
@@ -219,6 +233,17 @@ static int dwc3_ti_probe(struct platform_device *pdev)
if (ret)
return ret;
+ /* Workaround Errata i2409 */
+ phy = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(phy)) {
+ dev_err(dev, "can't map PHY IOMEM resource. Won't apply i2409 fix.\n");
+ phy = NULL;
+ } else {
+ reg = readl(phy + USB_PHY_PLL_REG12);
+ reg |= USB_PHY_PLL_LDO_REF_EN | USB_PHY_PLL_LDO_REF_EN_EN;
+ writel(reg, phy + USB_PHY_PLL_REG12);
+ }
+
/* VBUS divider select */
am62->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG);
@@ -267,21 +292,15 @@ err_pm_disable:
return ret;
}
-static int dwc3_ti_remove_core(struct device *dev, void *c)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- platform_device_unregister(pdev);
- return 0;
-}
-
static void dwc3_ti_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct dwc3_am62 *am62 = platform_get_drvdata(pdev);
u32 reg;
- device_for_each_child(dev, NULL, dwc3_ti_remove_core);
+ pm_runtime_get_sync(dev);
+ device_init_wakeup(dev, false);
+ of_platform_depopulate(dev);
/* Clear mode valid bit */
reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL);
@@ -289,7 +308,6 @@ static void dwc3_ti_remove(struct platform_device *pdev)
dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg);
pm_runtime_put_sync(dev);
- clk_disable_unprepare(am62->usb2_refclk);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
}
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 5d365ca51771..9a6e988d165a 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -169,6 +169,12 @@ static const struct dwc3_exynos_driverdata exynos850_drvdata = {
.suspend_clk_idx = -1,
};
+static const struct dwc3_exynos_driverdata gs101_drvdata = {
+ .clk_names = { "bus_early", "susp_clk", "link_aclk", "link_pclk" },
+ .num_clks = 4,
+ .suspend_clk_idx = 1,
+};
+
static const struct of_device_id exynos_dwc3_match[] = {
{
.compatible = "samsung,exynos5250-dwusb3",
@@ -183,11 +189,13 @@ static const struct of_device_id exynos_dwc3_match[] = {
.compatible = "samsung,exynos850-dwusb3",
.data = &exynos850_drvdata,
}, {
+ .compatible = "google,gs101-dwusb3",
+ .data = &gs101_drvdata,
+ }, {
}
};
MODULE_DEVICE_TABLE(of, exynos_dwc3_match);
-#ifdef CONFIG_PM_SLEEP
static int dwc3_exynos_suspend(struct device *dev)
{
struct dwc3_exynos *exynos = dev_get_drvdata(dev);
@@ -230,14 +238,8 @@ static int dwc3_exynos_resume(struct device *dev)
return 0;
}
-static const struct dev_pm_ops dwc3_exynos_dev_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(dwc3_exynos_suspend, dwc3_exynos_resume)
-};
-
-#define DEV_PM_OPS (&dwc3_exynos_dev_pm_ops)
-#else
-#define DEV_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
+static DEFINE_SIMPLE_DEV_PM_OPS(dwc3_exynos_dev_pm_ops,
+ dwc3_exynos_suspend, dwc3_exynos_resume);
static struct platform_driver dwc3_exynos_driver = {
.probe = dwc3_exynos_probe,
@@ -245,7 +247,7 @@ static struct platform_driver dwc3_exynos_driver = {
.driver = {
.name = "exynos-dwc3",
.of_match_table = exynos_dwc3_match,
- .pm = DEV_PM_OPS,
+ .pm = pm_sleep_ptr(&dwc3_exynos_dev_pm_ops),
},
};
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index d1539fc9eabd..be7be00ecb34 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -52,8 +52,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
if (of_device_is_compatible(np, "rockchip,rk3399-dwc3"))
simple->need_reset = true;
- simple->resets = of_reset_control_array_get(np, false, true,
- true);
+ simple->resets = of_reset_control_array_get_optional_exclusive(np);
if (IS_ERR(simple->resets)) {
ret = PTR_ERR(simple->resets);
dev_err(dev, "failed to get device resets, err=%d\n", ret);
@@ -173,6 +172,7 @@ static const struct of_device_id of_dwc3_simple_match[] = {
{ .compatible = "sprd,sc9860-dwc3" },
{ .compatible = "allwinner,sun50i-h6-dwc3" },
{ .compatible = "hisilicon,hi3670-dwc3" },
+ { .compatible = "hisilicon,hi3798mv200-dwc3" },
{ .compatible = "intel,keembay-dwc3" },
{ /* Sentinel */ }
};
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 39564e17f3b0..9ef821ca2fc7 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -8,6 +8,7 @@
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*/
+#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -51,7 +52,6 @@
#define PCI_DEVICE_ID_INTEL_MTLP 0x7ec1
#define PCI_DEVICE_ID_INTEL_MTLS 0x7f6f
#define PCI_DEVICE_ID_INTEL_MTL 0x7e7e
-#define PCI_DEVICE_ID_INTEL_ARLH 0x7ec1
#define PCI_DEVICE_ID_INTEL_ARLH_PCH 0x777e
#define PCI_DEVICE_ID_INTEL_TGL 0x9a15
#define PCI_DEVICE_ID_AMD_MR 0x163a
@@ -221,6 +221,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc,
if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
struct gpio_desc *gpio;
+ const char *bios_ver;
int ret;
/* On BYT the FW does not always enable the refclock */
@@ -278,8 +279,12 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc,
* detection. These can be identified by them _not_
* using the standard ACPI battery and ac drivers.
*/
+ bios_ver = dmi_get_system_info(DMI_BIOS_VERSION);
if (acpi_dev_present("INT33FD", "1", 2) &&
- acpi_quirk_skip_acpi_ac_and_battery()) {
+ acpi_quirk_skip_acpi_ac_and_battery() &&
+ /* Lenovo Yoga Tablet 2 Pro 1380 uses LC824206XA instead */
+ !(bios_ver &&
+ strstarts(bios_ver, "BLADE_21.X64.0005.R00.1504101516"))) {
dev_info(&pdev->dev, "Using TUSB1211 phy for charger detection\n");
swnode = &dwc3_pci_intel_phy_charger_detect_swnode;
}
@@ -423,7 +428,6 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
{ PCI_DEVICE_DATA(INTEL, MTLP, &dwc3_pci_intel_swnode) },
{ PCI_DEVICE_DATA(INTEL, MTL, &dwc3_pci_intel_swnode) },
{ PCI_DEVICE_DATA(INTEL, MTLS, &dwc3_pci_intel_swnode) },
- { PCI_DEVICE_DATA(INTEL, ARLH, &dwc3_pci_intel_swnode) },
{ PCI_DEVICE_DATA(INTEL, ARLH_PCH, &dwc3_pci_intel_swnode) },
{ PCI_DEVICE_DATA(INTEL, TGL, &dwc3_pci_intel_swnode) },
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index dbd6a5b2b289..88fb6706a18d 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -4,7 +4,6 @@
* Inspired by dwc3-of-simple.c
*/
-#include <linux/acpi.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/clk.h>
@@ -37,7 +36,6 @@
#define PIPE3_PHYSTATUS_SW BIT(3)
#define PIPE_UTMI_CLK_DIS BIT(8)
-#define PWR_EVNT_IRQ_STAT_REG 0x58
#define PWR_EVNT_LPM_IN_L2_MASK BIT(4)
#define PWR_EVNT_LPM_OUT_L2_MASK BIT(5)
@@ -53,39 +51,39 @@
#define APPS_USB_AVG_BW 0
#define APPS_USB_PEAK_BW MBps_to_icc(40)
-struct dwc3_acpi_pdata {
- u32 qscratch_base_offset;
- u32 qscratch_base_size;
- u32 dwc3_core_base_size;
- int qusb2_phy_irq_index;
- int dp_hs_phy_irq_index;
- int dm_hs_phy_irq_index;
- int ss_phy_irq_index;
- bool is_urs;
+/* Qualcomm SoCs with multiport support has up to 4 ports */
+#define DWC3_QCOM_MAX_PORTS 4
+
+static const u32 pwr_evnt_irq_stat_reg[DWC3_QCOM_MAX_PORTS] = {
+ 0x58,
+ 0x1dc,
+ 0x228,
+ 0x238,
+};
+
+struct dwc3_qcom_port {
+ int qusb2_phy_irq;
+ int dp_hs_phy_irq;
+ int dm_hs_phy_irq;
+ int ss_phy_irq;
+ enum usb_device_speed usb2_speed;
};
struct dwc3_qcom {
struct device *dev;
void __iomem *qscratch_base;
struct platform_device *dwc3;
- struct platform_device *urs_usb;
struct clk **clks;
int num_clocks;
struct reset_control *resets;
-
- int qusb2_phy_irq;
- int dp_hs_phy_irq;
- int dm_hs_phy_irq;
- int ss_phy_irq;
- enum usb_device_speed usb2_speed;
+ struct dwc3_qcom_port ports[DWC3_QCOM_MAX_PORTS];
+ u8 num_ports;
struct extcon_dev *edev;
struct extcon_dev *host_edev;
struct notifier_block vbus_nb;
struct notifier_block host_nb;
- const struct dwc3_acpi_pdata *acpi_pdata;
-
enum usb_dr_mode mode;
bool is_suspended;
bool pm_suspended;
@@ -248,9 +246,6 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)
struct device *dev = qcom->dev;
int ret;
- if (has_acpi_companion(dev))
- return 0;
-
qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr");
if (IS_ERR(qcom->icc_path_ddr)) {
return dev_err_probe(dev, PTR_ERR(qcom->icc_path_ddr),
@@ -321,7 +316,7 @@ static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)
return dwc->xhci;
}
-static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)
+static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom, int port_index)
{
struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
struct usb_device *udev;
@@ -332,14 +327,8 @@ static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)
*/
hcd = platform_get_drvdata(dwc->xhci);
- /*
- * It is possible to query the speed of all children of
- * USB2.0 root hub via usb_hub_for_each_child(). DWC3 code
- * currently supports only 1 port per controller. So
- * this is sufficient.
- */
#ifdef CONFIG_USB
- udev = usb_hub_find_child(hcd->self.root_hub, 1);
+ udev = usb_hub_find_child(hcd->self.root_hub, port_index + 1);
#else
udev = NULL;
#endif
@@ -370,26 +359,26 @@ static void dwc3_qcom_disable_wakeup_irq(int irq)
disable_irq_nosync(irq);
}
-static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
+static void dwc3_qcom_disable_port_interrupts(struct dwc3_qcom_port *port)
{
- dwc3_qcom_disable_wakeup_irq(qcom->qusb2_phy_irq);
+ dwc3_qcom_disable_wakeup_irq(port->qusb2_phy_irq);
- if (qcom->usb2_speed == USB_SPEED_LOW) {
- dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
- } else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||
- (qcom->usb2_speed == USB_SPEED_FULL)) {
- dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
+ if (port->usb2_speed == USB_SPEED_LOW) {
+ dwc3_qcom_disable_wakeup_irq(port->dm_hs_phy_irq);
+ } else if ((port->usb2_speed == USB_SPEED_HIGH) ||
+ (port->usb2_speed == USB_SPEED_FULL)) {
+ dwc3_qcom_disable_wakeup_irq(port->dp_hs_phy_irq);
} else {
- dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
- dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
+ dwc3_qcom_disable_wakeup_irq(port->dp_hs_phy_irq);
+ dwc3_qcom_disable_wakeup_irq(port->dm_hs_phy_irq);
}
- dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);
+ dwc3_qcom_disable_wakeup_irq(port->ss_phy_irq);
}
-static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
+static void dwc3_qcom_enable_port_interrupts(struct dwc3_qcom_port *port)
{
- dwc3_qcom_enable_wakeup_irq(qcom->qusb2_phy_irq, 0);
+ dwc3_qcom_enable_wakeup_irq(port->qusb2_phy_irq, 0);
/*
* Configure DP/DM line interrupts based on the USB2 device attached to
@@ -400,21 +389,37 @@ static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
* DP and DM lines as rising edge to detect HS/HS/LS device connect scenario.
*/
- if (qcom->usb2_speed == USB_SPEED_LOW) {
- dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,
- IRQ_TYPE_EDGE_FALLING);
- } else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||
- (qcom->usb2_speed == USB_SPEED_FULL)) {
- dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,
- IRQ_TYPE_EDGE_FALLING);
+ if (port->usb2_speed == USB_SPEED_LOW) {
+ dwc3_qcom_enable_wakeup_irq(port->dm_hs_phy_irq,
+ IRQ_TYPE_EDGE_FALLING);
+ } else if ((port->usb2_speed == USB_SPEED_HIGH) ||
+ (port->usb2_speed == USB_SPEED_FULL)) {
+ dwc3_qcom_enable_wakeup_irq(port->dp_hs_phy_irq,
+ IRQ_TYPE_EDGE_FALLING);
} else {
- dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,
- IRQ_TYPE_EDGE_RISING);
- dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,
- IRQ_TYPE_EDGE_RISING);
+ dwc3_qcom_enable_wakeup_irq(port->dp_hs_phy_irq,
+ IRQ_TYPE_EDGE_RISING);
+ dwc3_qcom_enable_wakeup_irq(port->dm_hs_phy_irq,
+ IRQ_TYPE_EDGE_RISING);
}
- dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0);
+ dwc3_qcom_enable_wakeup_irq(port->ss_phy_irq, 0);
+}
+
+static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
+{
+ int i;
+
+ for (i = 0; i < qcom->num_ports; i++)
+ dwc3_qcom_disable_port_interrupts(&qcom->ports[i]);
+}
+
+static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
+{
+ int i;
+
+ for (i = 0; i < qcom->num_ports; i++)
+ dwc3_qcom_enable_port_interrupts(&qcom->ports[i]);
}
static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)
@@ -425,9 +430,11 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)
if (qcom->is_suspended)
return 0;
- val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG);
- if (!(val & PWR_EVNT_LPM_IN_L2_MASK))
- dev_err(qcom->dev, "HS-PHY not in L2\n");
+ for (i = 0; i < qcom->num_ports; i++) {
+ val = readl(qcom->qscratch_base + pwr_evnt_irq_stat_reg[i]);
+ if (!(val & PWR_EVNT_LPM_IN_L2_MASK))
+ dev_err(qcom->dev, "port-%d HS-PHY not in L2\n", i + 1);
+ }
for (i = qcom->num_clocks - 1; i >= 0; i--)
clk_disable_unprepare(qcom->clks[i]);
@@ -441,7 +448,8 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)
* freezable workqueue.
*/
if (dwc3_qcom_is_host(qcom) && wakeup) {
- qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom);
+ for (i = 0; i < qcom->num_ports; i++)
+ qcom->ports[i].usb2_speed = dwc3_qcom_read_usb2_speed(qcom, i);
dwc3_qcom_enable_interrupts(qcom);
}
@@ -475,8 +483,11 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup)
dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);
/* Clear existing events from PHY related to L2 in/out */
- dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG,
- PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK);
+ for (i = 0; i < qcom->num_ports; i++) {
+ dwc3_qcom_setbits(qcom->qscratch_base,
+ pwr_evnt_irq_stat_reg[i],
+ PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK);
+ }
qcom->is_suspended = false;
@@ -519,84 +530,123 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom)
PIPE_UTMI_CLK_DIS);
}
-static int dwc3_qcom_get_irq(struct platform_device *pdev,
- const char *name, int num)
+static int dwc3_qcom_request_irq(struct dwc3_qcom *qcom, int irq,
+ const char *name)
{
- struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
- struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : pdev;
- struct device_node *np = pdev->dev.of_node;
int ret;
- if (np)
- ret = platform_get_irq_byname_optional(pdev_irq, name);
- else
- ret = platform_get_irq_optional(pdev_irq, num);
+ /* Keep wakeup interrupts disabled until suspend */
+ ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
+ qcom_dwc3_resume_irq,
+ IRQF_ONESHOT | IRQF_NO_AUTOEN,
+ name, qcom);
+ if (ret)
+ dev_err(qcom->dev, "failed to request irq %s: %d\n", name, ret);
return ret;
}
-static int dwc3_qcom_setup_irq(struct platform_device *pdev)
+static int dwc3_qcom_setup_port_irq(struct platform_device *pdev, int port_index, bool is_multiport)
{
struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
- const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata;
+ const char *irq_name;
int irq;
int ret;
- irq = dwc3_qcom_get_irq(pdev, "qusb2_phy",
- pdata ? pdata->qusb2_phy_irq_index : -1);
+ if (is_multiport)
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dp_hs_phy_%d", port_index + 1);
+ else
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dp_hs_phy_irq");
+ if (!irq_name)
+ return -ENOMEM;
+
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
if (irq > 0) {
- /* Keep wakeup interrupts disabled until suspend */
- ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
- qcom_dwc3_resume_irq,
- IRQF_ONESHOT | IRQF_NO_AUTOEN,
- "qcom_dwc3 QUSB2", qcom);
- if (ret) {
- dev_err(qcom->dev, "qusb2_phy_irq failed: %d\n", ret);
+ ret = dwc3_qcom_request_irq(qcom, irq, irq_name);
+ if (ret)
return ret;
- }
- qcom->qusb2_phy_irq = irq;
+ qcom->ports[port_index].dp_hs_phy_irq = irq;
}
- irq = dwc3_qcom_get_irq(pdev, "dp_hs_phy_irq",
- pdata ? pdata->dp_hs_phy_irq_index : -1);
+ if (is_multiport)
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dm_hs_phy_%d", port_index + 1);
+ else
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "dm_hs_phy_irq");
+ if (!irq_name)
+ return -ENOMEM;
+
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
if (irq > 0) {
- ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
- qcom_dwc3_resume_irq,
- IRQF_ONESHOT | IRQF_NO_AUTOEN,
- "qcom_dwc3 DP_HS", qcom);
- if (ret) {
- dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);
+ ret = dwc3_qcom_request_irq(qcom, irq, irq_name);
+ if (ret)
return ret;
- }
- qcom->dp_hs_phy_irq = irq;
+ qcom->ports[port_index].dm_hs_phy_irq = irq;
}
- irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq",
- pdata ? pdata->dm_hs_phy_irq_index : -1);
+ if (is_multiport)
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "ss_phy_%d", port_index + 1);
+ else
+ irq_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "ss_phy_irq");
+ if (!irq_name)
+ return -ENOMEM;
+
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
if (irq > 0) {
- ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
- qcom_dwc3_resume_irq,
- IRQF_ONESHOT | IRQF_NO_AUTOEN,
- "qcom_dwc3 DM_HS", qcom);
- if (ret) {
- dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);
+ ret = dwc3_qcom_request_irq(qcom, irq, irq_name);
+ if (ret)
return ret;
- }
- qcom->dm_hs_phy_irq = irq;
+ qcom->ports[port_index].ss_phy_irq = irq;
}
- irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq",
- pdata ? pdata->ss_phy_irq_index : -1);
+ if (is_multiport)
+ return 0;
+
+ irq = platform_get_irq_byname_optional(pdev, "qusb2_phy");
if (irq > 0) {
- ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
- qcom_dwc3_resume_irq,
- IRQF_ONESHOT | IRQF_NO_AUTOEN,
- "qcom_dwc3 SS", qcom);
- if (ret) {
- dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);
+ ret = dwc3_qcom_request_irq(qcom, irq, "qusb2_phy");
+ if (ret)
+ return ret;
+ qcom->ports[port_index].qusb2_phy_irq = irq;
+ }
+
+ return 0;
+}
+
+static int dwc3_qcom_find_num_ports(struct platform_device *pdev)
+{
+ char irq_name[14];
+ int port_num;
+ int irq;
+
+ irq = platform_get_irq_byname_optional(pdev, "dp_hs_phy_1");
+ if (irq <= 0)
+ return 1;
+
+ for (port_num = 2; port_num <= DWC3_QCOM_MAX_PORTS; port_num++) {
+ sprintf(irq_name, "dp_hs_phy_%d", port_num);
+
+ irq = platform_get_irq_byname_optional(pdev, irq_name);
+ if (irq <= 0)
+ return port_num - 1;
+ }
+
+ return DWC3_QCOM_MAX_PORTS;
+}
+
+static int dwc3_qcom_setup_irq(struct platform_device *pdev)
+{
+ struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
+ bool is_multiport;
+ int ret;
+ int i;
+
+ qcom->num_ports = dwc3_qcom_find_num_ports(pdev);
+ is_multiport = (qcom->num_ports > 1);
+
+ for (i = 0; i < qcom->num_ports; i++) {
+ ret = dwc3_qcom_setup_port_irq(pdev, i, is_multiport);
+ if (ret)
return ret;
- }
- qcom->ss_phy_irq = irq;
}
return 0;
@@ -649,88 +699,6 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)
return 0;
}
-static const struct property_entry dwc3_qcom_acpi_properties[] = {
- PROPERTY_ENTRY_STRING("dr_mode", "host"),
- {}
-};
-
-static const struct software_node dwc3_qcom_swnode = {
- .properties = dwc3_qcom_acpi_properties,
-};
-
-static int dwc3_qcom_acpi_register_core(struct platform_device *pdev)
-{
- struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
- struct device *dev = &pdev->dev;
- struct resource *res, *child_res = NULL;
- struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb :
- pdev;
- int irq;
- int ret;
-
- qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
- if (!qcom->dwc3)
- return -ENOMEM;
-
- qcom->dwc3->dev.parent = dev;
- qcom->dwc3->dev.type = dev->type;
- qcom->dwc3->dev.dma_mask = dev->dma_mask;
- qcom->dwc3->dev.dma_parms = dev->dma_parms;
- qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;
-
- child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL);
- if (!child_res) {
- platform_device_put(qcom->dwc3);
- return -ENOMEM;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "failed to get memory resource\n");
- ret = -ENODEV;
- goto out;
- }
-
- child_res[0].flags = res->flags;
- child_res[0].start = res->start;
- child_res[0].end = child_res[0].start +
- qcom->acpi_pdata->dwc3_core_base_size;
-
- irq = platform_get_irq(pdev_irq, 0);
- if (irq < 0) {
- ret = irq;
- goto out;
- }
- child_res[1].flags = IORESOURCE_IRQ;
- child_res[1].start = child_res[1].end = irq;
-
- ret = platform_device_add_resources(qcom->dwc3, child_res, 2);
- if (ret) {
- dev_err(&pdev->dev, "failed to add resources\n");
- goto out;
- }
-
- ret = device_add_software_node(&qcom->dwc3->dev, &dwc3_qcom_swnode);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to add properties\n");
- goto out;
- }
-
- ret = platform_device_add(qcom->dwc3);
- if (ret) {
- dev_err(&pdev->dev, "failed to add device\n");
- device_remove_software_node(&qcom->dwc3->dev);
- goto out;
- }
- kfree(child_res);
- return 0;
-
-out:
- platform_device_put(qcom->dwc3);
- kfree(child_res);
- return ret;
-}
-
static int dwc3_qcom_of_register_core(struct platform_device *pdev)
{
struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
@@ -763,57 +731,12 @@ node_put:
return ret;
}
-static struct platform_device *dwc3_qcom_create_urs_usb_platdev(struct device *dev)
-{
- struct platform_device *urs_usb = NULL;
- struct fwnode_handle *fwh;
- struct acpi_device *adev;
- char name[8];
- int ret;
- int id;
-
- /* Figure out device id */
- ret = sscanf(fwnode_get_name(dev->fwnode), "URS%d", &id);
- if (!ret)
- return NULL;
-
- /* Find the child using name */
- snprintf(name, sizeof(name), "USB%d", id);
- fwh = fwnode_get_named_child_node(dev->fwnode, name);
- if (!fwh)
- return NULL;
-
- adev = to_acpi_device_node(fwh);
- if (!adev)
- goto err_put_handle;
-
- urs_usb = acpi_create_platform_device(adev, NULL);
- if (IS_ERR_OR_NULL(urs_usb))
- goto err_put_handle;
-
- return urs_usb;
-
-err_put_handle:
- fwnode_handle_put(fwh);
-
- return urs_usb;
-}
-
-static void dwc3_qcom_destroy_urs_usb_platdev(struct platform_device *urs_usb)
-{
- struct fwnode_handle *fwh = urs_usb->dev.fwnode;
-
- platform_device_unregister(urs_usb);
- fwnode_handle_put(fwh);
-}
-
static int dwc3_qcom_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct dwc3_qcom *qcom;
- struct resource *res, *parent_res = NULL;
- struct resource local_res;
+ struct resource *res;
int ret, i;
bool ignore_pipe_clk;
bool wakeup_source;
@@ -825,14 +748,6 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, qcom);
qcom->dev = &pdev->dev;
- if (has_acpi_companion(dev)) {
- qcom->acpi_pdata = acpi_device_get_match_data(dev);
- if (!qcom->acpi_pdata) {
- dev_err(&pdev->dev, "no supporting ACPI device data\n");
- return -EINVAL;
- }
- }
-
qcom->resets = devm_reset_control_array_get_optional_exclusive(dev);
if (IS_ERR(qcom->resets)) {
return dev_err_probe(&pdev->dev, PTR_ERR(qcom->resets),
@@ -861,40 +776,16 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (np) {
- parent_res = res;
- } else {
- memcpy(&local_res, res, sizeof(struct resource));
- parent_res = &local_res;
-
- parent_res->start = res->start +
- qcom->acpi_pdata->qscratch_base_offset;
- parent_res->end = parent_res->start +
- qcom->acpi_pdata->qscratch_base_size;
-
- if (qcom->acpi_pdata->is_urs) {
- qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev);
- if (IS_ERR_OR_NULL(qcom->urs_usb)) {
- dev_err(dev, "failed to create URS USB platdev\n");
- if (!qcom->urs_usb)
- ret = -ENODEV;
- else
- ret = PTR_ERR(qcom->urs_usb);
- goto clk_disable;
- }
- }
- }
-
- qcom->qscratch_base = devm_ioremap_resource(dev, parent_res);
+ qcom->qscratch_base = devm_ioremap_resource(dev, res);
if (IS_ERR(qcom->qscratch_base)) {
ret = PTR_ERR(qcom->qscratch_base);
- goto free_urs;
+ goto clk_disable;
}
ret = dwc3_qcom_setup_irq(pdev);
if (ret) {
dev_err(dev, "failed to setup IRQs, err=%d\n", ret);
- goto free_urs;
+ goto clk_disable;
}
/*
@@ -906,14 +797,10 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
if (ignore_pipe_clk)
dwc3_qcom_select_utmi_clk(qcom);
- if (np)
- ret = dwc3_qcom_of_register_core(pdev);
- else
- ret = dwc3_qcom_acpi_register_core(pdev);
-
+ ret = dwc3_qcom_of_register_core(pdev);
if (ret) {
dev_err(dev, "failed to register DWC3 Core, err=%d\n", ret);
- goto free_urs;
+ goto clk_disable;
}
ret = dwc3_qcom_interconnect_init(qcom);
@@ -945,16 +832,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
interconnect_exit:
dwc3_qcom_interconnect_exit(qcom);
depopulate:
- if (np) {
- of_platform_depopulate(&pdev->dev);
- } else {
- device_remove_software_node(&qcom->dwc3->dev);
- platform_device_del(qcom->dwc3);
- }
+ of_platform_depopulate(&pdev->dev);
platform_device_put(qcom->dwc3);
-free_urs:
- if (qcom->urs_usb)
- dwc3_qcom_destroy_urs_usb_platdev(qcom->urs_usb);
clk_disable:
for (i = qcom->num_clocks - 1; i >= 0; i--) {
clk_disable_unprepare(qcom->clks[i]);
@@ -969,21 +848,12 @@ reset_assert:
static void dwc3_qcom_remove(struct platform_device *pdev)
{
struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
- struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
int i;
- if (np) {
- of_platform_depopulate(&pdev->dev);
- } else {
- device_remove_software_node(&qcom->dwc3->dev);
- platform_device_del(qcom->dwc3);
- }
+ of_platform_depopulate(&pdev->dev);
platform_device_put(qcom->dwc3);
- if (qcom->urs_usb)
- dwc3_qcom_destroy_urs_usb_platdev(qcom->urs_usb);
-
for (i = qcom->num_clocks - 1; i >= 0; i--) {
clk_disable_unprepare(qcom->clks[i]);
clk_put(qcom->clks[i]);
@@ -1053,38 +923,6 @@ static const struct of_device_id dwc3_qcom_of_match[] = {
};
MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match);
-#ifdef CONFIG_ACPI
-static const struct dwc3_acpi_pdata sdm845_acpi_pdata = {
- .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET,
- .qscratch_base_size = SDM845_QSCRATCH_SIZE,
- .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE,
- .qusb2_phy_irq_index = 1,
- .dp_hs_phy_irq_index = 4,
- .dm_hs_phy_irq_index = 3,
- .ss_phy_irq_index = 2
-};
-
-static const struct dwc3_acpi_pdata sdm845_acpi_urs_pdata = {
- .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET,
- .qscratch_base_size = SDM845_QSCRATCH_SIZE,
- .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE,
- .qusb2_phy_irq_index = 1,
- .dp_hs_phy_irq_index = 4,
- .dm_hs_phy_irq_index = 3,
- .ss_phy_irq_index = 2,
- .is_urs = true,
-};
-
-static const struct acpi_device_id dwc3_qcom_acpi_match[] = {
- { "QCOM2430", (unsigned long)&sdm845_acpi_pdata },
- { "QCOM0304", (unsigned long)&sdm845_acpi_urs_pdata },
- { "QCOM0497", (unsigned long)&sdm845_acpi_urs_pdata },
- { "QCOM04A6", (unsigned long)&sdm845_acpi_pdata },
- { },
-};
-MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match);
-#endif
-
static struct platform_driver dwc3_qcom_driver = {
.probe = dwc3_qcom_probe,
.remove_new = dwc3_qcom_remove,
@@ -1092,7 +930,6 @@ static struct platform_driver dwc3_qcom_driver = {
.name = "dwc3-qcom",
.pm = &dwc3_qcom_dev_pm_ops,
.of_match_table = dwc3_qcom_of_match,
- .acpi_match_table = ACPI_PTR(dwc3_qcom_acpi_match),
},
};
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 6ae8a36f21cf..d96ffbe52039 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -226,7 +226,8 @@ void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
/* reinitialize physical ep1 */
dep = dwc->eps[1];
- dep->flags = DWC3_EP_ENABLED;
+ dep->flags &= DWC3_EP_RESOURCE_ALLOCATED;
+ dep->flags |= DWC3_EP_ENABLED;
/* stall is always issued on EP0 */
dep = dwc->eps[0];
@@ -646,6 +647,7 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
return -EINVAL;
case USB_STATE_ADDRESS:
+ dwc3_gadget_start_config(dwc, 2);
dwc3_gadget_clear_tx_fifos(dwc);
ret = dwc3_ep0_delegate_req(dwc, ctrl);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 28f49400f3e8..89fc690fdf34 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -519,77 +519,56 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep)
static int dwc3_gadget_set_xfer_resource(struct dwc3_ep *dep)
{
struct dwc3_gadget_ep_cmd_params params;
+ int ret;
+
+ if (dep->flags & DWC3_EP_RESOURCE_ALLOCATED)
+ return 0;
memset(&params, 0x00, sizeof(params));
params.param0 = DWC3_DEPXFERCFG_NUM_XFER_RES(1);
- return dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETTRANSFRESOURCE,
+ ret = dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETTRANSFRESOURCE,
&params);
+ if (ret)
+ return ret;
+
+ dep->flags |= DWC3_EP_RESOURCE_ALLOCATED;
+ return 0;
}
/**
- * dwc3_gadget_start_config - configure ep resources
- * @dep: endpoint that is being enabled
- *
- * Issue a %DWC3_DEPCMD_DEPSTARTCFG command to @dep. After the command's
- * completion, it will set Transfer Resource for all available endpoints.
- *
- * The assignment of transfer resources cannot perfectly follow the data book
- * due to the fact that the controller driver does not have all knowledge of the
- * configuration in advance. It is given this information piecemeal by the
- * composite gadget framework after every SET_CONFIGURATION and
- * SET_INTERFACE. Trying to follow the databook programming model in this
- * scenario can cause errors. For two reasons:
- *
- * 1) The databook says to do %DWC3_DEPCMD_DEPSTARTCFG for every
- * %USB_REQ_SET_CONFIGURATION and %USB_REQ_SET_INTERFACE (8.1.5). This is
- * incorrect in the scenario of multiple interfaces.
- *
- * 2) The databook does not mention doing more %DWC3_DEPCMD_DEPXFERCFG for new
- * endpoint on alt setting (8.1.6).
- *
- * The following simplified method is used instead:
+ * dwc3_gadget_start_config - reset endpoint resources
+ * @dwc: pointer to the DWC3 context
+ * @resource_index: DEPSTARTCFG.XferRscIdx value (must be 0 or 2)
*
- * All hardware endpoints can be assigned a transfer resource and this setting
- * will stay persistent until either a core reset or hibernation. So whenever we
- * do a %DWC3_DEPCMD_DEPSTARTCFG(0) we can go ahead and do
- * %DWC3_DEPCMD_DEPXFERCFG for every hardware endpoint as well. We are
- * guaranteed that there are as many transfer resources as endpoints.
+ * Set resource_index=0 to reset all endpoints' resources allocation. Do this as
+ * part of the power-on/soft-reset initialization.
*
- * This function is called for each endpoint when it is being enabled but is
- * triggered only when called for EP0-out, which always happens first, and which
- * should only happen in one of the above conditions.
+ * Set resource_index=2 to reset only non-control endpoints' resources. Do this
+ * on receiving the SET_CONFIGURATION request or hibernation resume.
*/
-static int dwc3_gadget_start_config(struct dwc3_ep *dep)
+int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index)
{
struct dwc3_gadget_ep_cmd_params params;
- struct dwc3 *dwc;
u32 cmd;
int i;
int ret;
- if (dep->number)
- return 0;
+ if (resource_index != 0 && resource_index != 2)
+ return -EINVAL;
memset(&params, 0x00, sizeof(params));
cmd = DWC3_DEPCMD_DEPSTARTCFG;
- dwc = dep->dwc;
+ cmd |= DWC3_DEPCMD_PARAM(resource_index);
- ret = dwc3_send_gadget_ep_cmd(dep, cmd, &params);
+ ret = dwc3_send_gadget_ep_cmd(dwc->eps[0], cmd, &params);
if (ret)
return ret;
- for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
- struct dwc3_ep *dep = dwc->eps[i];
-
- if (!dep)
- continue;
-
- ret = dwc3_gadget_set_xfer_resource(dep);
- if (ret)
- return ret;
- }
+ /* Reset resource allocation flags */
+ for (i = resource_index; i < dwc->num_eps && dwc->eps[i]; i++)
+ dwc->eps[i]->flags &= ~DWC3_EP_RESOURCE_ALLOCATED;
return 0;
}
@@ -884,16 +863,18 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action)
ret = dwc3_gadget_resize_tx_fifos(dep);
if (ret)
return ret;
-
- ret = dwc3_gadget_start_config(dep);
- if (ret)
- return ret;
}
ret = dwc3_gadget_set_ep_config(dep, action);
if (ret)
return ret;
+ if (!(dep->flags & DWC3_EP_RESOURCE_ALLOCATED)) {
+ ret = dwc3_gadget_set_xfer_resource(dep);
+ if (ret)
+ return ret;
+ }
+
if (!(dep->flags & DWC3_EP_ENABLED)) {
struct dwc3_trb *trb_st_hw;
struct dwc3_trb *trb_link;
@@ -1047,7 +1028,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
dep->stream_capable = false;
dep->type = 0;
- mask = DWC3_EP_TXFIFO_RESIZED;
+ mask = DWC3_EP_TXFIFO_RESIZED | DWC3_EP_RESOURCE_ALLOCATED;
/*
* dwc3_remove_requests() can exit early if DWC3 EP delayed stop is
* set. Do not clear DEP flags, so that the end transfer command will
@@ -1718,7 +1699,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc)
*/
static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt)
{
- struct dwc3 *dwc = dep->dwc;
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
int ret;
@@ -1743,8 +1723,7 @@ static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool int
dep->resource_index = 0;
if (!interrupt) {
- if (!DWC3_IP_IS(DWC3) || DWC3_VER_IS_PRIOR(DWC3, 310A))
- mdelay(1);
+ mdelay(1);
dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
} else if (!ret) {
dep->flags |= DWC3_EP_END_TRANSFER_PENDING;
@@ -2913,6 +2892,12 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)
/* Start with SuperSpeed Default */
dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
+ ret = dwc3_gadget_start_config(dwc, 0);
+ if (ret) {
+ dev_err(dwc->dev, "failed to config endpoints\n");
+ return ret;
+ }
+
dep = dwc->eps[0];
dep->flags = 0;
ret = __dwc3_gadget_ep_enable(dep, DWC3_DEPCFG_ACTION_INIT);
@@ -2937,6 +2922,7 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)
dwc3_ep0_out_start(dwc);
dwc3_gadget_enable_irq(dwc);
+ dwc3_enable_susphy(dwc, true);
return 0;
@@ -2968,6 +2954,9 @@ static int dwc3_gadget_start(struct usb_gadget *g,
dwc->gadget_driver = driver;
spin_unlock_irqrestore(&dwc->lock, flags);
+ if (dwc->sys_wakeup)
+ device_wakeup_enable(dwc->sysdev);
+
return 0;
}
@@ -2983,6 +2972,9 @@ static int dwc3_gadget_stop(struct usb_gadget *g)
struct dwc3 *dwc = gadget_to_dwc(g);
unsigned long flags;
+ if (dwc->sys_wakeup)
+ device_wakeup_disable(dwc->sysdev);
+
spin_lock_irqsave(&dwc->lock, flags);
dwc->gadget_driver = NULL;
dwc->max_cfg_eps = 0;
@@ -3428,7 +3420,7 @@ static int dwc3_gadget_ep_reclaim_trb_sg(struct dwc3_ep *dep,
struct dwc3_request *req, const struct dwc3_event_depevt *event,
int status)
{
- struct dwc3_trb *trb = &dep->trb_pool[dep->trb_dequeue];
+ struct dwc3_trb *trb;
struct scatterlist *sg = req->sg;
struct scatterlist *s;
unsigned int num_queued = req->num_queued_sgs;
@@ -4664,6 +4656,10 @@ int dwc3_gadget_init(struct dwc3 *dwc)
else
dwc3_gadget_set_speed(dwc->gadget, dwc->maximum_speed);
+ /* No system wakeup if no gadget driver bound */
+ if (dwc->sys_wakeup)
+ device_wakeup_disable(dwc->sysdev);
+
return 0;
err5:
@@ -4693,6 +4689,7 @@ void dwc3_gadget_exit(struct dwc3 *dwc)
if (!dwc->gadget)
return;
+ dwc3_enable_susphy(dwc, false);
usb_del_gadget(dwc->gadget);
dwc3_gadget_free_endpoints(dwc);
usb_put_gadget(dwc->gadget);
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 55a56cf67d73..d73e735e4081 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -119,6 +119,7 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
void dwc3_ep0_send_delayed_status(struct dwc3 *dwc);
void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt);
+int dwc3_gadget_start_config(struct dwc3 *dwc, unsigned int resource_index);
/**
* dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 43230915323c..a171b27a7845 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -10,9 +10,74 @@
#include <linux/irq.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include "../host/xhci-port.h"
+#include "../host/xhci-ext-caps.h"
+#include "../host/xhci-caps.h"
+#include "../host/xhci-plat.h"
#include "core.h"
+#define XHCI_HCSPARAMS1 0x4
+#define XHCI_PORTSC_BASE 0x400
+
+/**
+ * dwc3_power_off_all_roothub_ports - Power off all Root hub ports
+ * @dwc: Pointer to our controller context structure
+ */
+static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc)
+{
+ void __iomem *xhci_regs;
+ u32 op_regs_base;
+ int port_num;
+ u32 offset;
+ u32 reg;
+ int i;
+
+ /* xhci regs is not mapped yet, do it temperary here */
+ if (dwc->xhci_resources[0].start) {
+ xhci_regs = ioremap(dwc->xhci_resources[0].start, DWC3_XHCI_REGS_END);
+ if (!xhci_regs) {
+ dev_err(dwc->dev, "Failed to ioremap xhci_regs\n");
+ return;
+ }
+
+ op_regs_base = HC_LENGTH(readl(xhci_regs));
+ reg = readl(xhci_regs + XHCI_HCSPARAMS1);
+ port_num = HCS_MAX_PORTS(reg);
+
+ for (i = 1; i <= port_num; i++) {
+ offset = op_regs_base + XHCI_PORTSC_BASE + 0x10 * (i - 1);
+ reg = readl(xhci_regs + offset);
+ reg &= ~PORT_POWER;
+ writel(reg, xhci_regs + offset);
+ }
+
+ iounmap(xhci_regs);
+ } else {
+ dev_err(dwc->dev, "xhci base reg invalid\n");
+ }
+}
+
+static void dwc3_xhci_plat_start(struct usb_hcd *hcd)
+{
+ struct platform_device *pdev;
+ struct dwc3 *dwc;
+
+ if (!usb_hcd_is_primary_hcd(hcd))
+ return;
+
+ pdev = to_platform_device(hcd->self.controller);
+ dwc = dev_get_drvdata(pdev->dev.parent);
+
+ dwc3_enable_susphy(dwc, true);
+}
+
+static const struct xhci_plat_priv dwc3_xhci_plat_quirk = {
+ .plat_start = dwc3_xhci_plat_start,
+};
+
static void dwc3_host_fill_xhci_irq_res(struct dwc3 *dwc,
int irq, char *name)
{
@@ -66,6 +131,12 @@ int dwc3_host_init(struct dwc3 *dwc)
int ret, irq;
int prop_idx = 0;
+ /*
+ * Some platforms need to power off all Root hub ports immediately after DWC3 set to host
+ * mode to avoid VBUS glitch happen when xhci get reset later.
+ */
+ dwc3_power_off_all_roothub_ports(dwc);
+
irq = dwc3_host_get_irq(dwc);
if (irq < 0)
return irq;
@@ -117,12 +188,25 @@ int dwc3_host_init(struct dwc3 *dwc)
}
}
+ ret = platform_device_add_data(xhci, &dwc3_xhci_plat_quirk,
+ sizeof(struct xhci_plat_priv));
+ if (ret)
+ goto err;
+
ret = platform_device_add(xhci);
if (ret) {
dev_err(dwc->dev, "failed to register xHCI device\n");
goto err;
}
+ if (dwc->sys_wakeup) {
+ /* Restore wakeup setting if switched from device */
+ device_wakeup_enable(dwc->sysdev);
+
+ /* Pass on wakeup setting to the new xhci platform device */
+ device_init_wakeup(&xhci->dev, true);
+ }
+
return 0;
err:
platform_device_put(xhci);
@@ -131,6 +215,10 @@ err:
void dwc3_host_exit(struct dwc3 *dwc)
{
+ if (dwc->sys_wakeup)
+ device_init_wakeup(&dwc->xhci->dev, false);
+
+ dwc3_enable_susphy(dwc, false);
platform_device_unregister(dwc->xhci);
dwc->xhci = NULL;
}
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
index d2997d17cfbe..bdeb1aaf65d8 100644
--- a/drivers/usb/dwc3/trace.h
+++ b/drivers/usb/dwc3/trace.h
@@ -112,7 +112,7 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
__field(int, no_interrupt)
),
TP_fast_assign(
- __assign_str(name, req->dep->name);
+ __assign_str(name);
__entry->req = req;
__entry->actual = req->request.actual;
__entry->length = req->request.length;
@@ -193,7 +193,7 @@ DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
__field(int, cmd_status)
),
TP_fast_assign(
- __assign_str(name, dep->name);
+ __assign_str(name);
__entry->cmd = cmd;
__entry->param0 = params->param0;
__entry->param1 = params->param1;
@@ -229,7 +229,7 @@ DECLARE_EVENT_CLASS(dwc3_log_trb,
__field(u32, dequeue)
),
TP_fast_assign(
- __assign_str(name, dep->name);
+ __assign_str(name);
__entry->trb = trb;
__entry->bpl = trb->bpl;
__entry->bph = trb->bph;
@@ -301,7 +301,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
__field(u8, trb_dequeue)
),
TP_fast_assign(
- __assign_str(name, dep->name);
+ __assign_str(name);
__entry->maxpacket = dep->endpoint.maxpacket;
__entry->maxpacket_limit = dep->endpoint.maxpacket_limit;
__entry->max_streams = dep->endpoint.max_streams;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-20 22:44:11 +0000