static int dwc3_omap_extcon_register(struct dwc3_omap *omap)
{
int ret;
struct device_node *node = omap->dev->of_node;
struct extcon_dev *edev;
if (of_property_read_bool(node, "extcon")) {
edev = extcon_get_edev_by_phandle(omap->dev, 0);
if (IS_ERR(edev)) {
dev_vdbg(omap->dev, "couldn't get extcon device\n");
return -EPROBE_DEFER;
}
omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
ret = extcon_register_notifier(edev, EXTCON_USB,
&omap->vbus_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB\n");
omap->id_nb.notifier_call = dwc3_omap_id_notifier;
ret = extcon_register_notifier(edev, EXTCON_USB_HOST,
&omap->id_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");
if (extcon_get_cable_state_(edev, EXTCON_USB) == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
if (extcon_get_cable_state_(edev, EXTCON_USB_HOST) == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
omap->edev = edev;
}
return 0;
}
static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
{
struct msm_otg_platform_data *pdata;
struct extcon_dev *ext_id, *ext_vbus;
struct device_node *node = pdev->dev.of_node;
struct property *prop;
int len, ret, words;
u32 val, tmp[3];
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
motg->pdata = pdata;
pdata->phy_type = (enum msm_usb_phy_type)of_device_get_match_data(&pdev->dev);
if (!pdata->phy_type)
return 1;
motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
if (IS_ERR(motg->link_rst))
return PTR_ERR(motg->link_rst);
motg->phy_rst = devm_reset_control_get(&pdev->dev, "phy");
if (IS_ERR(motg->phy_rst))
motg->phy_rst = NULL;
pdata->mode = usb_get_dr_mode(&pdev->dev);
if (pdata->mode == USB_DR_MODE_UNKNOWN)
pdata->mode = USB_DR_MODE_OTG;
pdata->otg_control = OTG_PHY_CONTROL;
if (!of_property_read_u32(node, "qcom,otg-control", &val))
if (val == OTG_PMIC_CONTROL)
pdata->otg_control = val;
if (!of_property_read_u32(node, "qcom,phy-num", &val) && val < 2)
motg->phy_number = val;
motg->vdd_levels[VDD_LEVEL_NONE] = USB_PHY_SUSP_DIG_VOL;
motg->vdd_levels[VDD_LEVEL_MIN] = USB_PHY_VDD_DIG_VOL_MIN;
motg->vdd_levels[VDD_LEVEL_MAX] = USB_PHY_VDD_DIG_VOL_MAX;
if (of_get_property(node, "qcom,vdd-levels", &len) &&
len == sizeof(tmp)) {
of_property_read_u32_array(node, "qcom,vdd-levels",
tmp, len / sizeof(*tmp));
motg->vdd_levels[VDD_LEVEL_NONE] = tmp[VDD_LEVEL_NONE];
motg->vdd_levels[VDD_LEVEL_MIN] = tmp[VDD_LEVEL_MIN];
motg->vdd_levels[VDD_LEVEL_MAX] = tmp[VDD_LEVEL_MAX];
}
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")) {
/* Each one of them is not mandatory */
ext_vbus = extcon_get_edev_by_phandle(&pdev->dev, 0);
if (IS_ERR(ext_vbus) && PTR_ERR(ext_vbus) != -ENODEV)
return PTR_ERR(ext_vbus);
ext_id = extcon_get_edev_by_phandle(&pdev->dev, 1);
if (IS_ERR(ext_id) && PTR_ERR(ext_id) != -ENODEV)
return PTR_ERR(ext_id);
}
if (!IS_ERR(ext_vbus)) {
motg->vbus.extcon = ext_vbus;
motg->vbus.nb.notifier_call = msm_otg_vbus_notifier;
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, EXTCON_USB);
if (ret)
set_bit(B_SESS_VLD, &motg->inputs);
else
clear_bit(B_SESS_VLD, &motg->inputs);
}
if (!IS_ERR(ext_id)) {
motg->id.extcon = ext_id;
motg->id.nb.notifier_call = msm_otg_id_notifier;
ret = extcon_register_notifier(ext_id, EXTCON_USB_HOST,
&motg->id.nb);
if (ret < 0) {
dev_err(&pdev->dev, "register ID notifier failed\n");
extcon_unregister_notifier(motg->vbus.extcon,
EXTCON_USB, &motg->vbus.nb);
return ret;
}
ret = extcon_get_cable_state_(ext_id, EXTCON_USB_HOST);
if (ret)
clear_bit(ID, &motg->inputs);
else
set_bit(ID, &motg->inputs);
}
prop = of_find_property(node, "qcom,phy-init-sequence", &len);
if (!prop || !len)
return 0;
words = len / sizeof(u32);
if (words >= ULPI_EXT_VENDOR_SPECIFIC) {
dev_warn(&pdev->dev, "Too big PHY init sequence %d\n", words);
return 0;
}
pdata->phy_init_seq = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
if (!pdata->phy_init_seq)
return 0;
ret = of_property_read_u32_array(node, "qcom,phy-init-sequence",
pdata->phy_init_seq, words);
if (!ret)
pdata->phy_init_sz = words;
return 0;
}
static int usbhs_probe(struct platform_device *pdev)
{
struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
struct renesas_usbhs_driver_callback *dfunc;
struct usbhs_priv *priv;
struct resource *res, *irq_res;
int ret;
/* check device node */
if (pdev->dev.of_node)
info = pdev->dev.platform_data = usbhs_parse_dt(&pdev->dev);
/* check platform information */
if (!info) {
dev_err(&pdev->dev, "no platform information\n");
return -EINVAL;
}
/* platform data */
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq_res) {
dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
return -ENODEV;
}
/* usb private data */
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
if (of_property_read_bool(pdev->dev.of_node, "extcon")) {
priv->edev = extcon_get_edev_by_phandle(&pdev->dev, 0);
if (IS_ERR(priv->edev))
return PTR_ERR(priv->edev);
}
/*
* care platform info
*/
memcpy(&priv->dparam,
&info->driver_param,
sizeof(struct renesas_usbhs_driver_param));
switch (priv->dparam.type) {
case USBHS_TYPE_RCAR_GEN2:
priv->pfunc = usbhs_rcar2_ops;
if (!priv->dparam.pipe_type) {
priv->dparam.pipe_type = usbhsc_new_pipe_type;
priv->dparam.pipe_size =
ARRAY_SIZE(usbhsc_new_pipe_type);
}
break;
default:
if (!info->platform_callback.get_id) {
dev_err(&pdev->dev, "no platform callbacks");
return -EINVAL;
}
memcpy(&priv->pfunc,
&info->platform_callback,
sizeof(struct renesas_usbhs_platform_callback));
break;
}
/* set driver callback functions for platform */
dfunc = &info->driver_callback;
dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug;
/* set default param if platform doesn't have */
if (!priv->dparam.pipe_type) {
priv->dparam.pipe_type = usbhsc_default_pipe_type;
priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
}
if (!priv->dparam.pio_dma_border)
priv->dparam.pio_dma_border = 64; /* 64byte */
/* FIXME */
/* runtime power control ? */
if (priv->pfunc.get_vbus)
usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL);
/*
* priv settings
*/
priv->irq = irq_res->start;
if (irq_res->flags & IORESOURCE_IRQ_SHAREABLE)
priv->irqflags = IRQF_SHARED;
priv->pdev = pdev;
INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
spin_lock_init(usbhs_priv_to_lock(priv));
/* call pipe and module init */
ret = usbhs_pipe_probe(priv);
if (ret < 0)
return ret;
ret = usbhs_fifo_probe(priv);
if (ret < 0)
goto probe_end_pipe_exit;
ret = usbhs_mod_probe(priv);
if (ret < 0)
goto probe_end_fifo_exit;
/* dev_set_drvdata should be called after usbhs_mod_init */
platform_set_drvdata(pdev, priv);
/*
* deviece reset here because
* USB device might be used in boot loader.
*/
usbhs_sys_clock_ctrl(priv, 0);
/* check GPIO determining if USB function should be enabled */
if (priv->dparam.enable_gpio) {
gpio_request_one(priv->dparam.enable_gpio, GPIOF_IN, NULL);
ret = !gpio_get_value(priv->dparam.enable_gpio);
gpio_free(priv->dparam.enable_gpio);
if (ret) {
dev_warn(&pdev->dev,
"USB function not selected (GPIO %d)\n",
priv->dparam.enable_gpio);
ret = -ENOTSUPP;
goto probe_end_mod_exit;
}
}
/*
* platform call
*
* USB phy setup might depend on CPU/Board.
* If platform has its callback functions,
* call it here.
*/
ret = usbhs_platform_call(priv, hardware_init, pdev);
if (ret < 0) {
dev_err(&pdev->dev, "platform init failed.\n");
goto probe_end_mod_exit;
}
/* reset phy for connection */
usbhs_platform_call(priv, phy_reset, pdev);
/* power control */
pm_runtime_enable(&pdev->dev);
if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
usbhsc_power_ctrl(priv, 1);
usbhs_mod_autonomy_mode(priv);
}
/*
* manual call notify_hotplug for cold plug
*/
usbhsc_drvcllbck_notify_hotplug(pdev);
dev_info(&pdev->dev, "probed\n");
return ret;
probe_end_mod_exit:
usbhs_mod_remove(priv);
probe_end_fifo_exit:
usbhs_fifo_remove(priv);
probe_end_pipe_exit:
usbhs_pipe_remove(priv);
dev_info(&pdev->dev, "probe failed\n");
return ret;
}
static int qcom_usb_hs_phy_probe(struct ulpi *ulpi)
{
struct qcom_usb_hs_phy *uphy;
struct phy_provider *p;
struct clk *clk;
struct regulator *reg;
struct reset_control *reset;
int size;
int ret;
uphy = devm_kzalloc(&ulpi->dev, sizeof(*uphy), GFP_KERNEL);
if (!uphy)
return -ENOMEM;
ulpi_set_drvdata(ulpi, uphy);
uphy->ulpi = ulpi;
size = of_property_count_u8_elems(ulpi->dev.of_node, "qcom,init-seq");
if (size < 0)
size = 0;
uphy->init_seq = devm_kmalloc_array(&ulpi->dev, (size / 2) + 1,
sizeof(*uphy->init_seq), GFP_KERNEL);
if (!uphy->init_seq)
return -ENOMEM;
ret = of_property_read_u8_array(ulpi->dev.of_node, "qcom,init-seq",
(u8 *)uphy->init_seq, size);
if (ret && size)
return ret;
/* NUL terminate */
uphy->init_seq[size / 2].addr = uphy->init_seq[size / 2].val = 0;
uphy->ref_clk = clk = devm_clk_get(&ulpi->dev, "ref");
if (IS_ERR(clk))
return PTR_ERR(clk);
uphy->sleep_clk = clk = devm_clk_get(&ulpi->dev, "sleep");
if (IS_ERR(clk))
return PTR_ERR(clk);
uphy->v1p8 = reg = devm_regulator_get(&ulpi->dev, "v1p8");
if (IS_ERR(reg))
return PTR_ERR(reg);
uphy->v3p3 = reg = devm_regulator_get(&ulpi->dev, "v3p3");
if (IS_ERR(reg))
return PTR_ERR(reg);
uphy->reset = reset = devm_reset_control_get(&ulpi->dev, "por");
if (IS_ERR(reset)) {
if (PTR_ERR(reset) == -EPROBE_DEFER)
return PTR_ERR(reset);
uphy->reset = NULL;
}
uphy->phy = devm_phy_create(&ulpi->dev, ulpi->dev.of_node,
&qcom_usb_hs_phy_ops);
if (IS_ERR(uphy->phy))
return PTR_ERR(uphy->phy);
uphy->vbus_edev = extcon_get_edev_by_phandle(&ulpi->dev, 0);
if (IS_ERR(uphy->vbus_edev)) {
if (PTR_ERR(uphy->vbus_edev) != -ENODEV)
return PTR_ERR(uphy->vbus_edev);
uphy->vbus_edev = NULL;
}
uphy->vbus_notify.notifier_call = qcom_usb_hs_phy_vbus_notifier;
phy_set_drvdata(uphy->phy, uphy);
p = devm_of_phy_provider_register(&ulpi->dev, of_phy_simple_xlate);
return PTR_ERR_OR_ZERO(p);
}
static struct jack_platform_data *extcon_port_dt_parse(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct jack_platform_data *pdata;
const struct extcon_dev *edev;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
dev_err(&pdev->dev, "Failed to allocate memory\n");
return NULL;
}
edev = extcon_get_edev_by_phandle(&pdev->dev, 0);
if (IS_ERR(edev))
dev_warn(&pdev->dev, "Failed to get extcon dev for muic from DT\n");
else {
dev_info(&pdev->dev, "Using extcon for muic device: %s\n",
edev->name);
pdata->extcon_name_muic = edev->name;
}
edev = extcon_get_edev_by_phandle(&pdev->dev, 1);
if (IS_ERR(edev))
dev_warn(&pdev->dev, "Failed to get extcon dev for jack from DT\n");
else {
dev_info(&pdev->dev, "Using extcon for jack device: %s\n",
edev->name);
pdata->extcon_name_jack = edev->name;
}
edev = extcon_get_edev_by_phandle(&pdev->dev, 2);
if (IS_ERR(edev))
dev_warn(&pdev->dev, "Failed to get extcon dev for hdmi from DT\n");
else {
dev_info(&pdev->dev, "Using extcon for hdmi device: %s\n",
edev->name);
pdata->extcon_name_hdmi = edev->name;
}
if (!of_property_read_bool(np, "samsung,extcon-online-usb"))
pdata->usb_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-charger"))
pdata->charger_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-hdmi"))
pdata->hdmi_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-earjack"))
pdata->earjack_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-earkey"))
pdata->earkey_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-ums"))
pdata->ums_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-cdrom"))
pdata->cdrom_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-jig"))
pdata->jig_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-host"))
pdata->host_online = -1;
if (!of_property_read_bool(np, "samsung,extcon-online-cradle"))
pdata->cradle_online = -1;
return pdata;
}
static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
{
struct device_node *node = pdev->dev.of_node;
struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
struct device *dev = &pdev->dev;
struct regulator *vbus;
struct resource *res;
int i;
int ret;
ssusb->vusb33 = devm_regulator_get(&pdev->dev, "vusb33");
if (IS_ERR(ssusb->vusb33)) {
dev_err(dev, "failed to get vusb33\n");
return PTR_ERR(ssusb->vusb33);
}
ssusb->sys_clk = devm_clk_get(dev, "sys_ck");
if (IS_ERR(ssusb->sys_clk)) {
dev_err(dev, "failed to get sys clock\n");
return PTR_ERR(ssusb->sys_clk);
}
ssusb->ref_clk = get_optional_clk(dev, "ref_ck");
if (IS_ERR(ssusb->ref_clk))
return PTR_ERR(ssusb->ref_clk);
ssusb->mcu_clk = get_optional_clk(dev, "mcu_ck");
if (IS_ERR(ssusb->mcu_clk))
return PTR_ERR(ssusb->mcu_clk);
ssusb->dma_clk = get_optional_clk(dev, "dma_ck");
if (IS_ERR(ssusb->dma_clk))
return PTR_ERR(ssusb->dma_clk);
ssusb->num_phys = of_count_phandle_with_args(node,
"phys", "#phy-cells");
if (ssusb->num_phys > 0) {
ssusb->phys = devm_kcalloc(dev, ssusb->num_phys,
sizeof(*ssusb->phys), GFP_KERNEL);
if (!ssusb->phys)
return -ENOMEM;
} else {
ssusb->num_phys = 0;
}
for (i = 0; i < ssusb->num_phys; i++) {
ssusb->phys[i] = devm_of_phy_get_by_index(dev, node, i);
if (IS_ERR(ssusb->phys[i])) {
dev_err(dev, "failed to get phy-%d\n", i);
return PTR_ERR(ssusb->phys[i]);
}
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ippc");
ssusb->ippc_base = devm_ioremap_resource(dev, res);
if (IS_ERR(ssusb->ippc_base))
return PTR_ERR(ssusb->ippc_base);
ssusb->dr_mode = usb_get_dr_mode(dev);
if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN)
ssusb->dr_mode = USB_DR_MODE_OTG;
if (ssusb->dr_mode == USB_DR_MODE_PERIPHERAL)
return 0;
/* if host role is supported */
ret = ssusb_wakeup_of_property_parse(ssusb, node);
if (ret) {
dev_err(dev, "failed to parse uwk property\n");
return ret;
}
/* optional property, ignore the error if it does not exist */
of_property_read_u32(node, "mediatek,u3p-dis-msk",
&ssusb->u3p_dis_msk);
vbus = devm_regulator_get(&pdev->dev, "vbus");
if (IS_ERR(vbus)) {
dev_err(dev, "failed to get vbus\n");
return PTR_ERR(vbus);
}
otg_sx->vbus = vbus;
if (ssusb->dr_mode == USB_DR_MODE_HOST)
return 0;
/* if dual-role mode is supported */
otg_sx->is_u3_drd = of_property_read_bool(node, "mediatek,usb3-drd");
otg_sx->manual_drd_enabled =
of_property_read_bool(node, "enable-manual-drd");
if (of_property_read_bool(node, "extcon")) {
otg_sx->edev = extcon_get_edev_by_phandle(ssusb->dev, 0);
if (IS_ERR(otg_sx->edev)) {
dev_err(ssusb->dev, "couldn't get extcon device\n");
return PTR_ERR(otg_sx->edev);
}
}
dev_info(dev, "dr_mode: %d, is_u3_dr: %d, u3p_dis_msk: %x, drd: %s\n",
ssusb->dr_mode, otg_sx->is_u3_drd, ssusb->u3p_dis_msk,
otg_sx->manual_drd_enabled ? "manual" : "auto");
return 0;
}
