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path: root/drivers/usb/dwc3/core.c
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Diffstat (limited to 'drivers/usb/dwc3/core.c')
-rw-r--r--drivers/usb/dwc3/core.c155
1 files changed, 107 insertions, 48 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index b169913172fc..81324d586c07 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -37,6 +37,7 @@
#include "core.h"
#include "gadget.h"
+#include "glue.h"
#include "io.h"
#include "debug.h"
@@ -2161,27 +2162,16 @@ static struct power_supply *dwc3_get_usb_power_supply(struct dwc3 *dwc)
return usb_psy;
}
-static int dwc3_probe(struct platform_device *pdev)
+int dwc3_core_probe(const struct dwc3_probe_data *data)
{
- struct device *dev = &pdev->dev;
- struct resource *res, dwc_res;
+ struct dwc3 *dwc = data->dwc;
+ struct device *dev = dwc->dev;
+ struct resource dwc_res;
unsigned int hw_mode;
void __iomem *regs;
- struct dwc3 *dwc;
+ struct resource *res = data->res;
int ret;
- dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
- if (!dwc)
- return -ENOMEM;
-
- dwc->dev = dev;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "missing memory resource\n");
- return -ENODEV;
- }
-
dwc->xhci_resources[0].start = res->start;
dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
DWC3_XHCI_REGS_END;
@@ -2245,7 +2235,7 @@ static int dwc3_probe(struct platform_device *pdev)
goto err_disable_clks;
}
- platform_set_drvdata(pdev, dwc);
+ dev_set_drvdata(dev, dwc);
dwc3_cache_hwparams(dwc);
if (!dwc->sysdev_is_parent &&
@@ -2340,12 +2330,35 @@ err_put_psy:
return ret;
}
+EXPORT_SYMBOL_GPL(dwc3_core_probe);
-static void dwc3_remove(struct platform_device *pdev)
+static int dwc3_probe(struct platform_device *pdev)
{
- struct dwc3 *dwc = platform_get_drvdata(pdev);
+ struct dwc3_probe_data probe_data;
+ struct resource *res;
+ struct dwc3 *dwc;
- pm_runtime_get_sync(&pdev->dev);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "missing memory resource\n");
+ return -ENODEV;
+ }
+
+ dwc = devm_kzalloc(&pdev->dev, sizeof(*dwc), GFP_KERNEL);
+ if (!dwc)
+ return -ENOMEM;
+
+ dwc->dev = &pdev->dev;
+
+ probe_data.dwc = dwc;
+ probe_data.res = res;
+
+ return dwc3_core_probe(&probe_data);
+}
+
+void dwc3_core_remove(struct dwc3 *dwc)
+{
+ pm_runtime_get_sync(dwc->dev);
dwc3_core_exit_mode(dwc);
dwc3_debugfs_exit(dwc);
@@ -2353,22 +2366,28 @@ static void dwc3_remove(struct platform_device *pdev)
dwc3_core_exit(dwc);
dwc3_ulpi_exit(dwc);
- pm_runtime_allow(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
- pm_runtime_dont_use_autosuspend(&pdev->dev);
- pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_allow(dwc->dev);
+ pm_runtime_disable(dwc->dev);
+ pm_runtime_dont_use_autosuspend(dwc->dev);
+ pm_runtime_put_noidle(dwc->dev);
/*
* HACK: Clear the driver data, which is currently accessed by parent
* glue drivers, before allowing the parent to suspend.
*/
- platform_set_drvdata(pdev, NULL);
- pm_runtime_set_suspended(&pdev->dev);
+ dev_set_drvdata(dwc->dev, NULL);
+ pm_runtime_set_suspended(dwc->dev);
dwc3_free_event_buffers(dwc);
if (dwc->usb_psy)
power_supply_put(dwc->usb_psy);
}
+EXPORT_SYMBOL_GPL(dwc3_core_remove);
+
+static void dwc3_remove(struct platform_device *pdev)
+{
+ dwc3_core_remove(platform_get_drvdata(pdev));
+}
#ifdef CONFIG_PM
static int dwc3_core_init_for_resume(struct dwc3 *dwc)
@@ -2557,9 +2576,8 @@ static int dwc3_runtime_checks(struct dwc3 *dwc)
return 0;
}
-static int dwc3_runtime_suspend(struct device *dev)
+int dwc3_runtime_suspend(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
int ret;
if (dwc3_runtime_checks(dwc))
@@ -2571,10 +2589,11 @@ static int dwc3_runtime_suspend(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc3_runtime_suspend);
-static int dwc3_runtime_resume(struct device *dev)
+int dwc3_runtime_resume(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
+ struct device *dev = dwc->dev;
int ret;
ret = dwc3_resume_common(dwc, PMSG_AUTO_RESUME);
@@ -2584,7 +2603,7 @@ static int dwc3_runtime_resume(struct device *dev)
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
if (dwc->pending_events) {
- pm_runtime_put(dwc->dev);
+ pm_runtime_put(dev);
dwc->pending_events = false;
enable_irq(dwc->irq_gadget);
}
@@ -2599,10 +2618,11 @@ static int dwc3_runtime_resume(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc3_runtime_resume);
-static int dwc3_runtime_idle(struct device *dev)
+int dwc3_runtime_idle(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
+ struct device *dev = dwc->dev;
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
@@ -2620,12 +2640,28 @@ static int dwc3_runtime_idle(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc3_runtime_idle);
+
+static int dwc3_plat_runtime_suspend(struct device *dev)
+{
+ return dwc3_runtime_suspend(dev_get_drvdata(dev));
+}
+
+static int dwc3_plat_runtime_resume(struct device *dev)
+{
+ return dwc3_runtime_resume(dev_get_drvdata(dev));
+}
+
+static int dwc3_plat_runtime_idle(struct device *dev)
+{
+ return dwc3_runtime_idle(dev_get_drvdata(dev));
+}
#endif /* CONFIG_PM */
#ifdef CONFIG_PM_SLEEP
-static int dwc3_suspend(struct device *dev)
+int dwc3_pm_suspend(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
+ struct device *dev = dwc->dev;
int ret;
ret = dwc3_suspend_common(dwc, PMSG_SUSPEND);
@@ -2636,10 +2672,11 @@ static int dwc3_suspend(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc3_pm_suspend);
-static int dwc3_resume(struct device *dev)
+int dwc3_pm_resume(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
+ struct device *dev = dwc->dev;
int ret = 0;
pinctrl_pm_select_default_state(dev);
@@ -2658,10 +2695,10 @@ out:
return ret;
}
+EXPORT_SYMBOL_GPL(dwc3_pm_resume);
-static void dwc3_complete(struct device *dev)
+void dwc3_pm_complete(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
u32 reg;
if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST &&
@@ -2671,10 +2708,11 @@ static void dwc3_complete(struct device *dev)
dwc3_writel(dwc->regs, DWC3_GUCTL3, reg);
}
}
+EXPORT_SYMBOL_GPL(dwc3_pm_complete);
-static int dwc3_prepare(struct device *dev)
+int dwc3_pm_prepare(struct dwc3 *dwc)
{
- struct dwc3 *dwc = dev_get_drvdata(dev);
+ struct device *dev = dwc->dev;
/*
* Indicate to the PM core that it may safely leave the device in
@@ -2687,22 +2725,43 @@ static int dwc3_prepare(struct device *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc3_pm_prepare);
+
+static int dwc3_plat_suspend(struct device *dev)
+{
+ return dwc3_pm_suspend(dev_get_drvdata(dev));
+}
+
+static int dwc3_plat_resume(struct device *dev)
+{
+ return dwc3_pm_resume(dev_get_drvdata(dev));
+}
+
+static void dwc3_plat_complete(struct device *dev)
+{
+ dwc3_pm_complete(dev_get_drvdata(dev));
+}
+
+static int dwc3_plat_prepare(struct device *dev)
+{
+ return dwc3_pm_prepare(dev_get_drvdata(dev));
+}
#else
-#define dwc3_complete NULL
-#define dwc3_prepare NULL
+#define dwc3_plat_complete NULL
+#define dwc3_plat_prepare NULL
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops dwc3_dev_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(dwc3_suspend, dwc3_resume)
- .complete = dwc3_complete,
- .prepare = dwc3_prepare,
+ SET_SYSTEM_SLEEP_PM_OPS(dwc3_plat_suspend, dwc3_plat_resume)
+ .complete = dwc3_plat_complete,
+ .prepare = dwc3_plat_prepare,
/*
* Runtime suspend halts the controller on disconnection. It relies on
* platforms with custom connection notification to start the controller
* again.
*/
- SET_RUNTIME_PM_OPS(dwc3_runtime_suspend, dwc3_runtime_resume,
- dwc3_runtime_idle)
+ SET_RUNTIME_PM_OPS(dwc3_plat_runtime_suspend, dwc3_plat_runtime_resume,
+ dwc3_plat_runtime_idle)
};
#ifdef CONFIG_OF
generated by cgit v1.2.3 (git 2.39.0) at 2025-11-03 22:56:28 +0300