#include <linux/module.h>
#include <linux/device.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/reboot.h>
#include <linux/reset.h>
#include <linux/usb.h>
else
clear_bit(B_SESS_VLD, &motg->inputs);
+ if (test_bit(B_SESS_VLD, &motg->inputs)) {
+ /* Switch D+/D- lines to Device connector */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ } else {
+ /* Switch D+/D- lines to Hub */
+ gpiod_set_value_cansleep(motg->switch_gpio, 1);
+ }
+
schedule_work(&motg->sm_work);
return NOTIFY_DONE;
motg->manual_pullup = of_property_read_bool(node, "qcom,manual-pullup");
+ motg->switch_gpio = devm_gpiod_get_optional(&pdev->dev, "switch",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(motg->switch_gpio))
+ return PTR_ERR(motg->switch_gpio);
+
ext_id = ERR_PTR(-ENODEV);
ext_vbus = ERR_PTR(-ENODEV);
if (of_property_read_bool(node, "extcon")) {
}
if (!IS_ERR(ext_vbus)) {
+ motg->vbus.extcon = ext_vbus;
motg->vbus.nb.notifier_call = msm_otg_vbus_notifier;
- ret = extcon_register_interest(&motg->vbus.conn, ext_vbus->name,
- "USB", &motg->vbus.nb);
+ ret = extcon_register_notifier(ext_vbus, EXTCON_USB,
+ &motg->vbus.nb);
if (ret < 0) {
dev_err(&pdev->dev, "register VBUS notifier failed\n");
return ret;
}
- ret = extcon_get_cable_state(ext_vbus, "USB");
+ ret = extcon_get_cable_state_(ext_vbus, EXTCON_USB);
if (ret)
set_bit(B_SESS_VLD, &motg->inputs);
else
}
if (!IS_ERR(ext_id)) {
+ motg->id.extcon = ext_id;
motg->id.nb.notifier_call = msm_otg_id_notifier;
- ret = extcon_register_interest(&motg->id.conn, ext_id->name,
- "USB-HOST", &motg->id.nb);
+ ret = extcon_register_notifier(ext_id, EXTCON_USB_HOST,
+ &motg->id.nb);
if (ret < 0) {
dev_err(&pdev->dev, "register ID notifier failed\n");
return ret;
}
- ret = extcon_get_cable_state(ext_id, "USB-HOST");
+ ret = extcon_get_cable_state_(ext_id, EXTCON_USB_HOST);
if (ret)
clear_bit(ID, &motg->inputs);
else
return 0;
}
+static int msm_otg_reboot_notify(struct notifier_block *this,
+ unsigned long code, void *unused)
+{
+ struct msm_otg *motg = container_of(this, struct msm_otg, reboot);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot
+ */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ return NOTIFY_DONE;
+}
+
static int msm_otg_probe(struct platform_device *pdev)
{
struct regulator_bulk_data regs[3];
dev_dbg(&pdev->dev, "Can not create mode change file\n");
}
+ if (test_bit(B_SESS_VLD, &motg->inputs)) {
+ /* Switch D+/D- lines to Device connector */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ } else {
+ /* Switch D+/D- lines to Hub */
+ gpiod_set_value_cansleep(motg->switch_gpio, 1);
+ }
+
+ motg->reboot.notifier_call = msm_otg_reboot_notify;
+ register_reboot_notifier(&motg->reboot);
+
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
if (phy->otg->host || phy->otg->gadget)
return -EBUSY;
- if (motg->id.conn.edev)
- extcon_unregister_interest(&motg->id.conn);
- if (motg->vbus.conn.edev)
- extcon_unregister_interest(&motg->vbus.conn);
+ unregister_reboot_notifier(&motg->reboot);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot
+ */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+
+ extcon_unregister_notifier(motg->id.extcon, EXTCON_USB_HOST, &motg->id.nb);
+ extcon_unregister_notifier(motg->vbus.extcon, EXTCON_USB, &motg->vbus.nb);
msm_otg_debugfs_cleanup();
cancel_delayed_work_sync(&motg->chg_work);