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path: root/drivers/usb/chipidea
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-rw-r--r--drivers/usb/chipidea/Kconfig4
-rw-r--r--drivers/usb/chipidea/Makefile3
-rw-r--r--drivers/usb/chipidea/ci.h25
-rw-r--r--drivers/usb/chipidea/ci_hdrc_imx.c203
-rw-r--r--drivers/usb/chipidea/ci_hdrc_imx.h2
-rw-r--r--drivers/usb/chipidea/ci_hdrc_msm.c5
-rw-r--r--drivers/usb/chipidea/ci_hdrc_npcm.c112
-rw-r--r--drivers/usb/chipidea/ci_hdrc_tegra.c32
-rw-r--r--drivers/usb/chipidea/ci_hdrc_usb2.c19
-rw-r--r--drivers/usb/chipidea/core.c91
-rw-r--r--drivers/usb/chipidea/debug.c57
-rw-r--r--drivers/usb/chipidea/host.c62
-rw-r--r--drivers/usb/chipidea/otg.c10
-rw-r--r--drivers/usb/chipidea/otg_fsm.c4
-rw-r--r--drivers/usb/chipidea/trace.h4
-rw-r--r--drivers/usb/chipidea/udc.c211
-rw-r--r--drivers/usb/chipidea/udc.h2
-rw-r--r--drivers/usb/chipidea/usbmisc_imx.c302
18 files changed, 917 insertions, 231 deletions
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index c815824a0b2d..bab45bc62361 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -43,6 +43,10 @@ config USB_CHIPIDEA_MSM
tristate "Enable MSM hsusb glue driver" if EXPERT
default USB_CHIPIDEA
+config USB_CHIPIDEA_NPCM
+ tristate "Enable NPCM hsusb glue driver" if EXPERT
+ default USB_CHIPIDEA
+
config USB_CHIPIDEA_IMX
tristate "Enable i.MX USB glue driver" if EXPERT
depends on OF
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 6f4a3deced35..718cb24603dd 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -13,6 +13,7 @@ ci_hdrc-$(CONFIG_USB_OTG_FSM) += otg_fsm.o
obj-$(CONFIG_USB_CHIPIDEA_GENERIC) += ci_hdrc_usb2.o
obj-$(CONFIG_USB_CHIPIDEA_MSM) += ci_hdrc_msm.o
+obj-$(CONFIG_USB_CHIPIDEA_NPCM) += ci_hdrc_npcm.o
obj-$(CONFIG_USB_CHIPIDEA_PCI) += ci_hdrc_pci.o
-obj-$(CONFIG_USB_CHIPIDEA_IMX) += ci_hdrc_imx.o usbmisc_imx.o
+obj-$(CONFIG_USB_CHIPIDEA_IMX) += usbmisc_imx.o ci_hdrc_imx.o
obj-$(CONFIG_USB_CHIPIDEA_TEGRA) += ci_hdrc_tegra.o
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 005c67cb3afb..97437de52ef6 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -25,6 +25,7 @@
#define TD_PAGE_COUNT 5
#define CI_HDRC_PAGE_SIZE 4096ul /* page size for TD's */
#define ENDPT_MAX 32
+#define CI_MAX_REQ_SIZE (4 * CI_HDRC_PAGE_SIZE)
#define CI_MAX_BUF_SIZE (TD_PAGE_COUNT * CI_HDRC_PAGE_SIZE)
/******************************************************************************
@@ -176,6 +177,7 @@ struct hw_bank {
* @enabled_otg_timer_bits: bits of enabled otg timers
* @next_otg_timer: next nearest enabled timer to be expired
* @work: work for role changing
+ * @power_lost_work: work for power lost handling
* @wq: workqueue thread
* @qh_pool: allocation pool for queue heads
* @td_pool: allocation pool for transfer descriptors
@@ -208,6 +210,7 @@ struct hw_bank {
* @in_lpm: if the core in low power mode
* @wakeup_int: if wakeup interrupt occur
* @rev: The revision number for controller
+ * @mutex: protect code from concorrent running when doing role switch
*/
struct ci_hdrc {
struct device *dev;
@@ -225,6 +228,7 @@ struct ci_hdrc {
enum otg_fsm_timer next_otg_timer;
struct usb_role_switch *role_switch;
struct work_struct work;
+ struct work_struct power_lost_work;
struct workqueue_struct *wq;
struct dma_pool *qh_pool;
@@ -256,10 +260,13 @@ struct ci_hdrc {
bool id_event;
bool b_sess_valid_event;
bool imx28_write_fix;
+ bool has_portsc_pec_bug;
+ bool has_short_pkt_limit;
bool supports_runtime_pm;
bool in_lpm;
bool wakeup_int;
enum ci_revision rev;
+ struct mutex mutex;
};
static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
@@ -279,8 +286,19 @@ static inline int ci_role_start(struct ci_hdrc *ci, enum ci_role role)
return -ENXIO;
ret = ci->roles[role]->start(ci);
- if (!ret)
- ci->role = role;
+ if (ret)
+ return ret;
+
+ ci->role = role;
+
+ if (ci->usb_phy) {
+ if (role == CI_ROLE_HOST)
+ usb_phy_set_event(ci->usb_phy, USB_EVENT_ID);
+ else
+ /* in device mode but vbus is invalid*/
+ usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
+ }
+
return ret;
}
@@ -294,6 +312,9 @@ static inline void ci_role_stop(struct ci_hdrc *ci)
ci->role = CI_ROLE_END;
ci->roles[role]->stop(ci);
+
+ if (ci->usb_phy)
+ usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
}
static inline enum usb_role ci_role_to_usb_role(struct ci_hdrc *ci)
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 0dc482542d85..d4ee9e16332f 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -1,11 +1,14 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2025 NXP
* Copyright (C) 2012 Marek Vasut <marex@denx.de>
* on behalf of DENX Software Engineering GmbH
*/
#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -67,9 +70,23 @@ static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = {
static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = {
.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+ CI_HDRC_HAS_PORTSC_PEC_MISSED |
CI_HDRC_PMQOS,
};
+static const struct ci_hdrc_imx_platform_flag imx8ulp_usb_data = {
+ .flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+ CI_HDRC_HAS_PORTSC_PEC_MISSED,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx95_usb_data = {
+ .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | CI_HDRC_OUT_BAND_WAKEUP,
+};
+
+static const struct ci_hdrc_imx_platform_flag s32g_usb_data = {
+ .flags = CI_HDRC_DISABLE_HOST_STREAMING,
+};
+
static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
{ .compatible = "fsl,imx23-usb", .data = &imx23_usb_data},
{ .compatible = "fsl,imx28-usb", .data = &imx28_usb_data},
@@ -80,6 +97,9 @@ static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
{ .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data},
{ .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data},
{ .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data},
+ { .compatible = "fsl,imx8ulp-usb", .data = &imx8ulp_usb_data},
+ { .compatible = "fsl,imx95-usb", .data = &imx95_usb_data},
+ { .compatible = "nxp,s32g2-usb", .data = &s32g_usb_data},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids);
@@ -88,7 +108,9 @@ struct ci_hdrc_imx_data {
struct usb_phy *phy;
struct platform_device *ci_pdev;
struct clk *clk;
+ struct clk *clk_wakeup;
struct imx_usbmisc_data *usbmisc_data;
+ int wakeup_irq;
bool supports_runtime_pm;
bool override_phy_control;
bool in_lpm;
@@ -119,7 +141,7 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
* In case the fsl,usbmisc property is not present this device doesn't
* need usbmisc. Return NULL (which is no error here)
*/
- if (!of_get_property(np, "fsl,usbmisc", NULL))
+ if (!of_property_present(np, "fsl,usbmisc"))
return NULL;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
@@ -152,12 +174,12 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
* Check the various over current related properties. If over current
* detection is disabled we're not interested in the polarity.
*/
- if (of_find_property(np, "disable-over-current", NULL)) {
+ if (of_property_read_bool(np, "disable-over-current")) {
data->disable_oc = 1;
- } else if (of_find_property(np, "over-current-active-high", NULL)) {
+ } else if (of_property_read_bool(np, "over-current-active-high")) {
data->oc_pol_active_low = 0;
data->oc_pol_configured = 1;
- } else if (of_find_property(np, "over-current-active-low", NULL)) {
+ } else if (of_property_read_bool(np, "over-current-active-low")) {
data->oc_pol_active_low = 1;
data->oc_pol_configured = 1;
} else {
@@ -170,10 +192,15 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI)
data->ulpi = 1;
- of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",
- &data->emp_curr_control);
- of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",
- &data->dc_vol_level_adjust);
+ if (of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control",
+ &data->emp_curr_control))
+ data->emp_curr_control = -1;
+ if (of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust",
+ &data->dc_vol_level_adjust))
+ data->dc_vol_level_adjust = -1;
+ if (of_property_read_u32(np, "fsl,picophy-rise-fall-time-adjust",
+ &data->rise_fall_time_adjust))
+ data->rise_fall_time_adjust = -1;
return data;
}
@@ -186,7 +213,7 @@ static int imx_get_clks(struct device *dev)
data->clk_ipg = devm_clk_get(dev, "ipg");
if (IS_ERR(data->clk_ipg)) {
- /* If the platform only needs one clocks */
+ /* If the platform only needs one primary clock */
data->clk = devm_clk_get(dev, NULL);
if (IS_ERR(data->clk)) {
ret = PTR_ERR(data->clk);
@@ -195,6 +222,13 @@ static int imx_get_clks(struct device *dev)
PTR_ERR(data->clk), PTR_ERR(data->clk_ipg));
return ret;
}
+ /* Get wakeup clock. Not all of the platforms need to
+ * handle this clock. So make it optional.
+ */
+ data->clk_wakeup = devm_clk_get_optional(dev, "usb_wakeup");
+ if (IS_ERR(data->clk_wakeup))
+ ret = dev_err_probe(dev, PTR_ERR(data->clk_wakeup),
+ "Failed to get wakeup clk\n");
return ret;
}
@@ -308,6 +342,12 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
if (ci->usb_phy)
schedule_work(&ci->usb_phy->chg_work);
break;
+ case CI_HDRC_CONTROLLER_PULLUP_EVENT:
+ if (ci->role == CI_ROLE_GADGET &&
+ ci->gadget.speed == USB_SPEED_HIGH)
+ imx_usbmisc_pullup(data->usbmisc_data,
+ ci->gadget.connected);
+ break;
default:
break;
}
@@ -315,12 +355,30 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
return ret;
}
+static irqreturn_t ci_wakeup_irq_handler(int irq, void *data)
+{
+ struct ci_hdrc_imx_data *imx_data = data;
+
+ disable_irq_nosync(irq);
+ pm_runtime_resume(&imx_data->ci_pdev->dev);
+
+ return IRQ_HANDLED;
+}
+
+static void ci_hdrc_imx_disable_regulator(void *arg)
+{
+ struct ci_hdrc_imx_data *data = arg;
+
+ regulator_disable(data->hsic_pad_regulator);
+}
+
static int ci_hdrc_imx_probe(struct platform_device *pdev)
{
struct ci_hdrc_imx_data *data;
struct ci_hdrc_platform_data pdata = {
.name = dev_name(&pdev->dev),
.capoffset = DEF_CAPOFFSET,
+ .flags = CI_HDRC_HAS_SHORT_PKT_LIMIT,
.notify_event = ci_hdrc_imx_notify_event,
};
int ret;
@@ -348,25 +406,36 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
data->pinctrl = devm_pinctrl_get(dev);
if (PTR_ERR(data->pinctrl) == -ENODEV)
data->pinctrl = NULL;
- else if (IS_ERR(data->pinctrl))
- return dev_err_probe(dev, PTR_ERR(data->pinctrl),
+ else if (IS_ERR(data->pinctrl)) {
+ ret = dev_err_probe(dev, PTR_ERR(data->pinctrl),
"pinctrl get failed\n");
+ goto err_put;
+ }
data->hsic_pad_regulator =
devm_regulator_get_optional(dev, "hsic");
if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) {
/* no pad regulator is needed */
data->hsic_pad_regulator = NULL;
- } else if (IS_ERR(data->hsic_pad_regulator))
- return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator),
+ } else if (IS_ERR(data->hsic_pad_regulator)) {
+ ret = dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator),
"Get HSIC pad regulator error\n");
+ goto err_put;
+ }
if (data->hsic_pad_regulator) {
ret = regulator_enable(data->hsic_pad_regulator);
if (ret) {
dev_err(dev,
"Failed to enable HSIC pad regulator\n");
- return ret;
+ goto err_put;
+ }
+ ret = devm_add_action_or_reset(dev,
+ ci_hdrc_imx_disable_regulator, data);
+ if (ret) {
+ dev_err(dev,
+ "Failed to add regulator devm action\n");
+ goto err_put;
}
}
}
@@ -380,13 +449,14 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
dev_err(dev,
"pinctrl_hsic_idle lookup failed, err=%ld\n",
PTR_ERR(pinctrl_hsic_idle));
- return PTR_ERR(pinctrl_hsic_idle);
+ ret = PTR_ERR(pinctrl_hsic_idle);
+ goto err_put;
}
ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle);
if (ret) {
dev_err(dev, "hsic_idle select failed, err=%d\n", ret);
- return ret;
+ goto err_put;
}
data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl,
@@ -395,7 +465,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
dev_err(dev,
"pinctrl_hsic_active lookup failed, err=%ld\n",
PTR_ERR(data->pinctrl_hsic_active));
- return PTR_ERR(data->pinctrl_hsic_active);
+ ret = PTR_ERR(data->pinctrl_hsic_active);
+ goto err_put;
}
}
@@ -404,24 +475,32 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
ret = imx_get_clks(dev);
if (ret)
- goto disable_hsic_regulator;
+ goto qos_remove_request;
ret = imx_prepare_enable_clks(dev);
if (ret)
- goto disable_hsic_regulator;
+ goto qos_remove_request;
+
+ ret = clk_prepare_enable(data->clk_wakeup);
+ if (ret)
+ goto err_wakeup_clk;
data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0);
if (IS_ERR(data->phy)) {
ret = PTR_ERR(data->phy);
- if (ret != -ENODEV)
+ if (ret != -ENODEV) {
+ dev_err_probe(dev, ret, "Failed to parse fsl,usbphy\n");
goto err_clk;
+ }
data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);
if (IS_ERR(data->phy)) {
ret = PTR_ERR(data->phy);
- if (ret == -ENODEV)
+ if (ret == -ENODEV) {
data->phy = NULL;
- else
+ } else {
+ dev_err_probe(dev, ret, "Failed to parse phys\n");
goto err_clk;
+ }
}
}
@@ -434,16 +513,30 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) {
pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL;
data->override_phy_control = true;
- usb_phy_init(pdata.usb_phy);
+ ret = usb_phy_init(pdata.usb_phy);
+ if (ret) {
+ dev_err(dev, "Failed to init phy\n");
+ goto err_clk;
+ }
}
if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM)
data->supports_runtime_pm = true;
+ data->wakeup_irq = platform_get_irq_optional(pdev, 1);
+ if (data->wakeup_irq > 0) {
+ ret = devm_request_threaded_irq(dev, data->wakeup_irq,
+ NULL, ci_wakeup_irq_handler,
+ IRQF_ONESHOT | IRQF_NO_AUTOEN,
+ pdata.name, data);
+ if (ret)
+ goto err_clk;
+ }
+
ret = imx_usbmisc_init(data->usbmisc_data);
if (ret) {
dev_err(dev, "usbmisc init failed, ret=%d\n", ret);
- goto err_clk;
+ goto phy_shutdown;
}
data->ci_pdev = ci_hdrc_add_device(dev,
@@ -452,7 +545,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
if (IS_ERR(data->ci_pdev)) {
ret = PTR_ERR(data->ci_pdev);
dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n");
- goto err_clk;
+ goto phy_shutdown;
}
if (data->usbmisc_data) {
@@ -486,19 +579,24 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
disable_device:
ci_hdrc_remove_device(data->ci_pdev);
+phy_shutdown:
+ if (data->override_phy_control)
+ usb_phy_shutdown(data->phy);
err_clk:
+ clk_disable_unprepare(data->clk_wakeup);
+err_wakeup_clk:
imx_disable_unprepare_clks(dev);
-disable_hsic_regulator:
- if (data->hsic_pad_regulator)
- /* don't overwrite original ret (cf. EPROBE_DEFER) */
- regulator_disable(data->hsic_pad_regulator);
+qos_remove_request:
if (pdata.flags & CI_HDRC_PMQOS)
cpu_latency_qos_remove_request(&data->pm_qos_req);
data->ci_pdev = NULL;
+err_put:
+ if (data->usbmisc_data)
+ put_device(data->usbmisc_data->dev);
return ret;
}
-static int ci_hdrc_imx_remove(struct platform_device *pdev)
+static void ci_hdrc_imx_remove(struct platform_device *pdev)
{
struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev);
@@ -513,13 +611,12 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
usb_phy_shutdown(data->phy);
if (data->ci_pdev) {
imx_disable_unprepare_clks(&pdev->dev);
+ clk_disable_unprepare(data->clk_wakeup);
if (data->plat_data->flags & CI_HDRC_PMQOS)
cpu_latency_qos_remove_request(&data->pm_qos_req);
- if (data->hsic_pad_regulator)
- regulator_disable(data->hsic_pad_regulator);
}
-
- return 0;
+ if (data->usbmisc_data)
+ put_device(data->usbmisc_data->dev);
}
static void ci_hdrc_imx_shutdown(struct platform_device *pdev)
@@ -527,7 +624,7 @@ static void ci_hdrc_imx_shutdown(struct platform_device *pdev)
ci_hdrc_imx_remove(pdev);
}
-static int __maybe_unused imx_controller_suspend(struct device *dev,
+static int imx_controller_suspend(struct device *dev,
pm_message_t msg)
{
struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
@@ -544,6 +641,10 @@ static int __maybe_unused imx_controller_suspend(struct device *dev,
}
imx_disable_unprepare_clks(dev);
+
+ if (data->wakeup_irq > 0)
+ enable_irq(data->wakeup_irq);
+
if (data->plat_data->flags & CI_HDRC_PMQOS)
cpu_latency_qos_remove_request(&data->pm_qos_req);
@@ -552,7 +653,7 @@ static int __maybe_unused imx_controller_suspend(struct device *dev,
return 0;
}
-static int __maybe_unused imx_controller_resume(struct device *dev,
+static int imx_controller_resume(struct device *dev,
pm_message_t msg)
{
struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
@@ -568,6 +669,10 @@ static int __maybe_unused imx_controller_resume(struct device *dev,
if (data->plat_data->flags & CI_HDRC_PMQOS)
cpu_latency_qos_add_request(&data->pm_qos_req, 0);
+ if (data->wakeup_irq > 0 &&
+ !irqd_irq_disabled(irq_get_irq_data(data->wakeup_irq)))
+ disable_irq_nosync(data->wakeup_irq);
+
ret = imx_prepare_enable_clks(dev);
if (ret)
return ret;
@@ -588,7 +693,7 @@ clk_disable:
return ret;
}
-static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev)
+static int ci_hdrc_imx_suspend(struct device *dev)
{
int ret;
@@ -603,14 +708,25 @@ static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev)
return ret;
pinctrl_pm_select_sleep_state(dev);
+
+ if (data->wakeup_irq > 0 && device_may_wakeup(dev)) {
+ enable_irq_wake(data->wakeup_irq);
+
+ if (data->plat_data->flags & CI_HDRC_OUT_BAND_WAKEUP)
+ device_set_out_band_wakeup(dev);
+ }
+
return ret;
}
-static int __maybe_unused ci_hdrc_imx_resume(struct device *dev)
+static int ci_hdrc_imx_resume(struct device *dev)
{
struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
int ret;
+ if (data->wakeup_irq > 0 && device_may_wakeup(dev))
+ disable_irq_wake(data->wakeup_irq);
+
pinctrl_pm_select_default_state(dev);
ret = imx_controller_resume(dev, PMSG_RESUME);
if (!ret && data->supports_runtime_pm) {
@@ -622,7 +738,7 @@ static int __maybe_unused ci_hdrc_imx_resume(struct device *dev)
return ret;
}
-static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev)
+static int ci_hdrc_imx_runtime_suspend(struct device *dev)
{
struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
@@ -634,15 +750,14 @@ static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev)
return imx_controller_suspend(dev, PMSG_AUTO_SUSPEND);
}
-static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev)
+static int ci_hdrc_imx_runtime_resume(struct device *dev)
{
return imx_controller_resume(dev, PMSG_AUTO_RESUME);
}
static const struct dev_pm_ops ci_hdrc_imx_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume)
- SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend,
- ci_hdrc_imx_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume)
+ RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, ci_hdrc_imx_runtime_resume, NULL)
};
static struct platform_driver ci_hdrc_imx_driver = {
.probe = ci_hdrc_imx_probe,
@@ -651,7 +766,7 @@ static struct platform_driver ci_hdrc_imx_driver = {
.driver = {
.name = "imx_usb",
.of_match_table = ci_hdrc_imx_dt_ids,
- .pm = &ci_hdrc_imx_pm_ops,
+ .pm = pm_ptr(&ci_hdrc_imx_pm_ops),
},
};
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index 7135b9a5d913..cb95c84d0322 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -28,6 +28,7 @@ struct imx_usbmisc_data {
enum usb_dr_mode available_role; /* runtime usb dr mode */
int emp_curr_control;
int dc_vol_level_adjust;
+ int rise_fall_time_adjust;
};
int imx_usbmisc_init(struct imx_usbmisc_data *data);
@@ -36,5 +37,6 @@ int imx_usbmisc_hsic_set_connect(struct imx_usbmisc_data *data);
int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect);
int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup);
int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup);
+int imx_usbmisc_pullup(struct imx_usbmisc_data *data, bool on);
#endif /* __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H */
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index 46105457e1ca..3ab3daa78e34 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -274,7 +274,7 @@ err_iface:
return ret;
}
-static int ci_hdrc_msm_remove(struct platform_device *pdev)
+static void ci_hdrc_msm_remove(struct platform_device *pdev)
{
struct ci_hdrc_msm *ci = platform_get_drvdata(pdev);
@@ -282,8 +282,6 @@ static int ci_hdrc_msm_remove(struct platform_device *pdev)
ci_hdrc_remove_device(ci->ci);
clk_disable_unprepare(ci->iface_clk);
clk_disable_unprepare(ci->core_clk);
-
- return 0;
}
static const struct of_device_id msm_ci_dt_match[] = {
@@ -305,4 +303,5 @@ module_platform_driver(ci_hdrc_msm_driver);
MODULE_ALIAS("platform:msm_hsusb");
MODULE_ALIAS("platform:ci13xxx_msm");
+MODULE_DESCRIPTION("ChipIdea Highspeed Dual Role Controller");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/chipidea/ci_hdrc_npcm.c b/drivers/usb/chipidea/ci_hdrc_npcm.c
new file mode 100644
index 000000000000..e52a2b05cbe2
--- /dev/null
+++ b/drivers/usb/chipidea/ci_hdrc_npcm.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2023 Nuvoton Technology corporation.
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/usb/chipidea.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/reset-controller.h>
+#include <linux/of.h>
+
+#include "ci.h"
+
+struct npcm_udc_data {
+ struct platform_device *ci;
+ struct clk *core_clk;
+ struct ci_hdrc_platform_data pdata;
+};
+
+static int npcm_udc_notify_event(struct ci_hdrc *ci, unsigned int event)
+{
+ struct device *dev = ci->dev->parent;
+
+ switch (event) {
+ case CI_HDRC_CONTROLLER_RESET_EVENT:
+ /* clear all mode bits */
+ hw_write(ci, OP_USBMODE, 0xffffffff, 0x0);
+ break;
+ default:
+ dev_dbg(dev, "unknown ci_hdrc event (%d)\n", event);
+ break;
+ }
+
+ return 0;
+}
+
+static int npcm_udc_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct npcm_udc_data *ci;
+ struct platform_device *plat_ci;
+ struct device *dev = &pdev->dev;
+
+ ci = devm_kzalloc(&pdev->dev, sizeof(*ci), GFP_KERNEL);
+ if (!ci)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, ci);
+
+ ci->core_clk = devm_clk_get_optional(dev, NULL);
+ if (IS_ERR(ci->core_clk))
+ return PTR_ERR(ci->core_clk);
+
+ ret = clk_prepare_enable(ci->core_clk);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to enable the clock: %d\n", ret);
+
+ ci->pdata.name = dev_name(dev);
+ ci->pdata.capoffset = DEF_CAPOFFSET;
+ ci->pdata.flags = CI_HDRC_REQUIRES_ALIGNED_DMA |
+ CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS;
+ ci->pdata.phy_mode = USBPHY_INTERFACE_MODE_UTMI;
+ ci->pdata.notify_event = npcm_udc_notify_event;
+
+ plat_ci = ci_hdrc_add_device(dev, pdev->resource, pdev->num_resources,
+ &ci->pdata);
+ if (IS_ERR(plat_ci)) {
+ ret = PTR_ERR(plat_ci);
+ dev_err(dev, "failed to register HDRC NPCM device: %d\n", ret);
+ goto clk_err;
+ }
+
+ pm_runtime_no_callbacks(dev);
+ pm_runtime_enable(dev);
+
+ return 0;
+
+clk_err:
+ clk_disable_unprepare(ci->core_clk);
+ return ret;
+}
+
+static void npcm_udc_remove(struct platform_device *pdev)
+{
+ struct npcm_udc_data *ci = platform_get_drvdata(pdev);
+
+ pm_runtime_disable(&pdev->dev);
+ ci_hdrc_remove_device(ci->ci);
+ clk_disable_unprepare(ci->core_clk);
+}
+
+static const struct of_device_id npcm_udc_dt_match[] = {
+ { .compatible = "nuvoton,npcm750-udc", },
+ { .compatible = "nuvoton,npcm845-udc", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, npcm_udc_dt_match);
+
+static struct platform_driver npcm_udc_driver = {
+ .probe = npcm_udc_probe,
+ .remove = npcm_udc_remove,
+ .driver = {
+ .name = "npcm_udc",
+ .of_match_table = npcm_udc_dt_match,
+ },
+};
+
+module_platform_driver(npcm_udc_driver);
+
+MODULE_DESCRIPTION("NPCM USB device controller driver");
+MODULE_AUTHOR("Tomer Maimon <tomer.maimon@nuvoton.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
index a72a9474afea..372788f0f970 100644
--- a/drivers/usb/chipidea/ci_hdrc_tegra.c
+++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
@@ -6,7 +6,8 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
@@ -292,14 +293,12 @@ static int tegra_usb_probe(struct platform_device *pdev)
usb->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0);
if (IS_ERR(usb->phy))
return dev_err_probe(&pdev->dev, PTR_ERR(usb->phy),
- "failed to get PHY\n");
+ "failed to get PHY");
usb->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(usb->clk)) {
- err = PTR_ERR(usb->clk);
- dev_err(&pdev->dev, "failed to get clock: %d\n", err);
- return err;
- }
+ if (IS_ERR(usb->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(usb->clk),
+ "failed to get clock");
err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev);
if (err)
@@ -315,7 +314,7 @@ static int tegra_usb_probe(struct platform_device *pdev)
err = tegra_usb_reset_controller(&pdev->dev);
if (err) {
- dev_err(&pdev->dev, "failed to reset controller: %d\n", err);
+ dev_err_probe(&pdev->dev, err, "failed to reset controller");
goto fail_power_off;
}
@@ -346,8 +345,8 @@ static int tegra_usb_probe(struct platform_device *pdev)
usb->dev = ci_hdrc_add_device(&pdev->dev, pdev->resource,
pdev->num_resources, &usb->data);
if (IS_ERR(usb->dev)) {
- err = PTR_ERR(usb->dev);
- dev_err(&pdev->dev, "failed to add HDRC device: %d\n", err);
+ err = dev_err_probe(&pdev->dev, PTR_ERR(usb->dev),
+ "failed to add HDRC device");
goto phy_shutdown;
}
@@ -362,7 +361,7 @@ fail_power_off:
return err;
}
-static int tegra_usb_remove(struct platform_device *pdev)
+static void tegra_usb_remove(struct platform_device *pdev)
{
struct tegra_usb *usb = platform_get_drvdata(pdev);
@@ -371,11 +370,9 @@ static int tegra_usb_remove(struct platform_device *pdev)
pm_runtime_put_sync_suspend(&pdev->dev);
pm_runtime_force_suspend(&pdev->dev);
-
- return 0;
}
-static int __maybe_unused tegra_usb_runtime_resume(struct device *dev)
+static int tegra_usb_runtime_resume(struct device *dev)
{
struct tegra_usb *usb = dev_get_drvdata(dev);
int err;
@@ -389,7 +386,7 @@ static int __maybe_unused tegra_usb_runtime_resume(struct device *dev)
return 0;
}
-static int __maybe_unused tegra_usb_runtime_suspend(struct device *dev)
+static int tegra_usb_runtime_suspend(struct device *dev)
{
struct tegra_usb *usb = dev_get_drvdata(dev);
@@ -399,15 +396,14 @@ static int __maybe_unused tegra_usb_runtime_suspend(struct device *dev)
}
static const struct dev_pm_ops tegra_usb_pm = {
- SET_RUNTIME_PM_OPS(tegra_usb_runtime_suspend, tegra_usb_runtime_resume,
- NULL)
+ RUNTIME_PM_OPS(tegra_usb_runtime_suspend, tegra_usb_runtime_resume, NULL)
};
static struct platform_driver tegra_usb_driver = {
.driver = {
.name = "tegra-usb",
.of_match_table = tegra_usb_of_match,
- .pm = &tegra_usb_pm,
+ .pm = pm_ptr(&tegra_usb_pm),
},
.probe = tegra_usb_probe,
.remove = tegra_usb_remove,
diff --git a/drivers/usb/chipidea/ci_hdrc_usb2.c b/drivers/usb/chipidea/ci_hdrc_usb2.c
index dc86b12060b5..8ffa1e95d8e8 100644
--- a/drivers/usb/chipidea/ci_hdrc_usb2.c
+++ b/drivers/usb/chipidea/ci_hdrc_usb2.c
@@ -9,9 +9,9 @@
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_platform.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/usb/chipidea.h>
#include <linux/usb/hcd.h>
#include <linux/usb/ulpi.h>
@@ -51,8 +51,8 @@ static int ci_hdrc_usb2_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct ci_hdrc_usb2_priv *priv;
struct ci_hdrc_platform_data *ci_pdata = dev_get_platdata(dev);
+ const struct ci_hdrc_platform_data *data;
int ret;
- const struct of_device_id *match;
if (!ci_pdata) {
ci_pdata = devm_kmalloc(dev, sizeof(*ci_pdata), GFP_KERNEL);
@@ -61,11 +61,10 @@ static int ci_hdrc_usb2_probe(struct platform_device *pdev)
*ci_pdata = ci_default_pdata; /* struct copy */
}
- match = of_match_device(ci_hdrc_usb2_of_match, &pdev->dev);
- if (match && match->data) {
+ data = device_get_match_data(&pdev->dev);
+ if (data)
/* struct copy */
- *ci_pdata = *(struct ci_hdrc_platform_data *)match->data;
- }
+ *ci_pdata = *data;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -106,23 +105,21 @@ clk_err:
return ret;
}
-static int ci_hdrc_usb2_remove(struct platform_device *pdev)
+static void ci_hdrc_usb2_remove(struct platform_device *pdev)
{
struct ci_hdrc_usb2_priv *priv = platform_get_drvdata(pdev);
pm_runtime_disable(&pdev->dev);
ci_hdrc_remove_device(priv->ci_pdev);
clk_disable_unprepare(priv->clk);
-
- return 0;
}
static struct platform_driver ci_hdrc_usb2_driver = {
.probe = ci_hdrc_usb2_probe,
- .remove = ci_hdrc_usb2_remove,
+ .remove = ci_hdrc_usb2_remove,
.driver = {
.name = "chipidea-usb2",
- .of_match_table = of_match_ptr(ci_hdrc_usb2_of_match),
+ .of_match_table = ci_hdrc_usb2_of_match,
},
};
module_platform_driver(ci_hdrc_usb2_driver);
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 27c601296130..fac11f20cf0a 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_domain.h>
#include <linux/pinctrl/consumer.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
@@ -523,6 +524,13 @@ static irqreturn_t ci_irq_handler(int irq, void *data)
u32 otgsc = 0;
if (ci->in_lpm) {
+ /*
+ * If we already have a wakeup irq pending there,
+ * let's just return to wait resume finished firstly.
+ */
+ if (ci->wakeup_int)
+ return IRQ_HANDLED;
+
disable_irq_nosync(irq);
ci->wakeup_int = true;
pm_runtime_get(ci->dev);
@@ -753,12 +761,12 @@ static int ci_get_platdata(struct device *dev,
return ret;
}
- if (of_find_property(dev->of_node, "non-zero-ttctrl-ttha", NULL))
+ if (of_property_read_bool(dev->of_node, "non-zero-ttctrl-ttha"))
platdata->flags |= CI_HDRC_SET_NON_ZERO_TTHA;
ext_id = ERR_PTR(-ENODEV);
ext_vbus = ERR_PTR(-ENODEV);
- if (of_property_read_bool(dev->of_node, "extcon")) {
+ if (of_property_present(dev->of_node, "extcon")) {
/* Each one of them is not mandatory */
ext_vbus = extcon_get_edev_by_phandle(dev, 0);
if (IS_ERR(ext_vbus) && PTR_ERR(ext_vbus) != -ENODEV)
@@ -849,6 +857,27 @@ static int ci_extcon_register(struct ci_hdrc *ci)
return 0;
}
+static void ci_power_lost_work(struct work_struct *work)
+{
+ struct ci_hdrc *ci = container_of(work, struct ci_hdrc, power_lost_work);
+ enum ci_role role;
+
+ disable_irq_nosync(ci->irq);
+ pm_runtime_get_sync(ci->dev);
+ if (!ci_otg_is_fsm_mode(ci)) {
+ role = ci_get_role(ci);
+
+ if (ci->role != role) {
+ ci_handle_id_switch(ci);
+ } else if (role == CI_ROLE_GADGET) {
+ if (ci->is_otg && hw_read_otgsc(ci, OTGSC_BSV))
+ usb_gadget_vbus_connect(&ci->gadget);
+ }
+ }
+ pm_runtime_put_sync(ci->dev);
+ enable_irq(ci->irq);
+}
+
static DEFINE_IDA(ci_ida);
struct platform_device *ci_hdrc_add_device(struct device *dev,
@@ -862,7 +891,7 @@ struct platform_device *ci_hdrc_add_device(struct device *dev,
if (ret)
return ERR_PTR(ret);
- id = ida_simple_get(&ci_ida, 0, 0, GFP_KERNEL);
+ id = ida_alloc(&ci_ida, GFP_KERNEL);
if (id < 0)
return ERR_PTR(id);
@@ -887,12 +916,14 @@ struct platform_device *ci_hdrc_add_device(struct device *dev,
if (ret)
goto err;
+ dev_pm_domain_detach(&pdev->dev, false);
+
return pdev;
err:
platform_device_put(pdev);
put_id:
- ida_simple_remove(&ci_ida, id);
+ ida_free(&ci_ida, id);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(ci_hdrc_add_device);
@@ -901,7 +932,7 @@ void ci_hdrc_remove_device(struct platform_device *pdev)
{
int id = pdev->id;
platform_device_unregister(pdev);
- ida_simple_remove(&ci_ida, id);
+ ida_free(&ci_ida, id);
}
EXPORT_SYMBOL_GPL(ci_hdrc_remove_device);
@@ -984,9 +1015,16 @@ static ssize_t role_store(struct device *dev,
strlen(ci->roles[role]->name)))
break;
- if (role == CI_ROLE_END || role == ci->role)
+ if (role == CI_ROLE_END)
return -EINVAL;
+ mutex_lock(&ci->mutex);
+
+ if (role == ci->role) {
+ mutex_unlock(&ci->mutex);
+ return n;
+ }
+
pm_runtime_get_sync(dev);
disable_irq(ci->irq);
ci_role_stop(ci);
@@ -995,6 +1033,7 @@ static ssize_t role_store(struct device *dev,
ci_handle_vbus_change(ci);
enable_irq(ci->irq);
pm_runtime_put_sync(dev);
+ mutex_unlock(&ci->mutex);
return (ret == 0) ? n : ret;
}
@@ -1020,8 +1059,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_ioremap_resource(dev, res);
+ base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(base))
return PTR_ERR(base);
@@ -1030,12 +1068,19 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENOMEM;
spin_lock_init(&ci->lock);
+ mutex_init(&ci->mutex);
+ INIT_WORK(&ci->power_lost_work, ci_power_lost_work);
+
ci->dev = dev;
ci->platdata = dev_get_platdata(dev);
ci->imx28_write_fix = !!(ci->platdata->flags &
CI_HDRC_IMX28_WRITE_FIX);
ci->supports_runtime_pm = !!(ci->platdata->flags &
CI_HDRC_SUPPORTS_RUNTIME_PM);
+ ci->has_portsc_pec_bug = !!(ci->platdata->flags &
+ CI_HDRC_HAS_PORTSC_PEC_MISSED);
+ ci->has_short_pkt_limit = !!(ci->platdata->flags &
+ CI_HDRC_HAS_SHORT_PKT_LIMIT);
platform_set_drvdata(pdev, ci);
ret = hw_device_init(ci, base);
@@ -1099,7 +1144,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
ret = ci_usb_phy_init(ci);
if (ret) {
dev_err(dev, "unable to init phy: %d\n", ret);
- return ret;
+ goto ulpi_exit;
}
ci->hw_bank.phys = res->start;
@@ -1218,7 +1263,7 @@ ulpi_exit:
return ret;
}
-static int ci_hdrc_remove(struct platform_device *pdev)
+static void ci_hdrc_remove(struct platform_device *pdev)
{
struct ci_hdrc *ci = platform_get_drvdata(pdev);
@@ -1236,8 +1281,6 @@ static int ci_hdrc_remove(struct platform_device *pdev)
ci_hdrc_enter_lpm(ci, true);
ci_usb_phy_exit(ci);
ci_ulpi_exit(ci);
-
- return 0;
}
#ifdef CONFIG_PM
@@ -1332,7 +1375,6 @@ static int ci_controller_resume(struct device *dev)
ci->in_lpm = false;
if (ci->wakeup_int) {
ci->wakeup_int = false;
- pm_runtime_mark_last_busy(ci->dev);
pm_runtime_put_autosuspend(ci->dev);
enable_irq(ci->irq);
if (ci_otg_is_fsm_mode(ci))
@@ -1381,25 +1423,6 @@ static int ci_suspend(struct device *dev)
return 0;
}
-static void ci_handle_power_lost(struct ci_hdrc *ci)
-{
- enum ci_role role;
-
- disable_irq_nosync(ci->irq);
- if (!ci_otg_is_fsm_mode(ci)) {
- role = ci_get_role(ci);
-
- if (ci->role != role) {
- ci_handle_id_switch(ci);
- } else if (role == CI_ROLE_GADGET) {
- if (ci->is_otg && hw_read_otgsc(ci, OTGSC_BSV))
- usb_gadget_vbus_connect(&ci->gadget);
- }
- }
-
- enable_irq(ci->irq);
-}
-
static int ci_resume(struct device *dev)
{
struct ci_hdrc *ci = dev_get_drvdata(dev);
@@ -1431,7 +1454,7 @@ static int ci_resume(struct device *dev)
ci_role(ci)->resume(ci, power_lost);
if (power_lost)
- ci_handle_power_lost(ci);
+ queue_work(system_freezable_wq, &ci->power_lost_work);
if (ci->supports_runtime_pm) {
pm_runtime_disable(dev);
@@ -1476,7 +1499,7 @@ static const struct dev_pm_ops ci_pm_ops = {
static struct platform_driver ci_hdrc_driver = {
.probe = ci_hdrc_probe,
- .remove = ci_hdrc_remove,
+ .remove = ci_hdrc_remove,
.driver = {
.name = "ci_hdrc",
.pm = &ci_pm_ops,
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index faf6b078b6c4..e72c43615d77 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -247,60 +247,6 @@ static int ci_otg_show(struct seq_file *s, void *unused)
}
DEFINE_SHOW_ATTRIBUTE(ci_otg);
-static int ci_role_show(struct seq_file *s, void *data)
-{
- struct ci_hdrc *ci = s->private;
-
- if (ci->role != CI_ROLE_END)
- seq_printf(s, "%s\n", ci_role(ci)->name);
-
- return 0;
-}
-
-static ssize_t ci_role_write(struct file *file, const char __user *ubuf,
- size_t count, loff_t *ppos)
-{
- struct seq_file *s = file->private_data;
- struct ci_hdrc *ci = s->private;
- enum ci_role role;
- char buf[8];
- int ret;
-
- if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- for (role = CI_ROLE_HOST; role < CI_ROLE_END; role++)
- if (ci->roles[role] &&
- !strncmp(buf, ci->roles[role]->name,
- strlen(ci->roles[role]->name)))
- break;
-
- if (role == CI_ROLE_END || role == ci->role)
- return -EINVAL;
-
- pm_runtime_get_sync(ci->dev);
- disable_irq(ci->irq);
- ci_role_stop(ci);
- ret = ci_role_start(ci, role);
- enable_irq(ci->irq);
- pm_runtime_put_sync(ci->dev);
-
- return ret ? ret : count;
-}
-
-static int ci_role_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ci_role_show, inode->i_private);
-}
-
-static const struct file_operations ci_role_fops = {
- .open = ci_role_open,
- .write = ci_role_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int ci_registers_show(struct seq_file *s, void *unused)
{
struct ci_hdrc *ci = s->private;
@@ -354,7 +300,6 @@ void dbg_create_files(struct ci_hdrc *ci)
if (ci_otg_is_fsm_mode(ci))
debugfs_create_file("otg", S_IRUGO, dir, ci, &ci_otg_fops);
- debugfs_create_file("role", S_IRUGO | S_IWUSR, dir, ci, &ci_role_fops);
debugfs_create_file("registers", S_IRUGO, dir, ci, &ci_registers_fops);
}
@@ -364,5 +309,5 @@ void dbg_create_files(struct ci_hdrc *ci)
*/
void dbg_remove_files(struct ci_hdrc *ci)
{
- debugfs_remove(debugfs_lookup(dev_name(ci->dev), usb_debug_root));
+ debugfs_lookup_and_remove(dev_name(ci->dev), usb_debug_root);
}
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index ebe7400243b1..ced6076a8248 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -13,6 +13,7 @@
#include <linux/usb/hcd.h>
#include <linux/usb/chipidea.h>
#include <linux/regulator/consumer.h>
+#include <linux/string_choices.h>
#include <linux/pinctrl/consumer.h>
#include "../host/ehci.h"
@@ -30,8 +31,7 @@ struct ehci_ci_priv {
};
struct ci_hdrc_dma_aligned_buffer {
- void *kmalloc_ptr;
- void *old_xfer_buffer;
+ void *original_buffer;
u8 data[];
};
@@ -57,7 +57,7 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable)
if (ret) {
dev_err(dev,
"Failed to %s vbus regulator, ret=%d\n",
- enable ? "enable" : "disable", ret);
+ str_enable_disable(enable), ret);
return ret;
}
priv->enabled = enable;
@@ -151,6 +151,7 @@ static int host_start(struct ci_hdrc *ci)
ehci->has_hostpc = ci->hw_bank.lpm;
ehci->has_tdi_phy_lpm = ci->hw_bank.lpm;
ehci->imx28_write_fix = ci->imx28_write_fix;
+ ehci->has_ci_pec_bug = ci->has_portsc_pec_bug;
priv = (struct ehci_ci_priv *)ehci->priv;
priv->reg_vbus = NULL;
@@ -256,8 +257,14 @@ static int ci_ehci_hub_control(
struct device *dev = hcd->self.controller;
struct ci_hdrc *ci = dev_get_drvdata(dev);
- port_index = wIndex & 0xff;
- port_index -= (port_index > 0);
+ /*
+ * Avoid out-of-bounds values while calculating the port index
+ * from wIndex. The compiler doesn't like pointers to invalid
+ * addresses, even if they are never used.
+ */
+ port_index = (wIndex - 1) & 0xff;
+ if (port_index >= HCS_N_PORTS_MAX)
+ port_index = 0;
status_reg = &ehci->regs->port_status[port_index];
spin_lock_irqsave(&ehci->lock, flags);
@@ -379,59 +386,52 @@ static int ci_ehci_bus_suspend(struct usb_hcd *hcd)
return 0;
}
-static void ci_hdrc_free_dma_aligned_buffer(struct urb *urb)
+static void ci_hdrc_free_dma_aligned_buffer(struct urb *urb, bool copy_back)
{
struct ci_hdrc_dma_aligned_buffer *temp;
- size_t length;
if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER))
return;
+ urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER;
temp = container_of(urb->transfer_buffer,
struct ci_hdrc_dma_aligned_buffer, data);
+ urb->transfer_buffer = temp->original_buffer;
+
+ if (copy_back && usb_urb_dir_in(urb)) {
+ size_t length;
- if (usb_urb_dir_in(urb)) {
if (usb_pipeisoc(urb->pipe))
length = urb->transfer_buffer_length;
else
length = urb->actual_length;
- memcpy(temp->old_xfer_buffer, temp->data, length);
+ memcpy(temp->original_buffer, temp->data, length);
}
- urb->transfer_buffer = temp->old_xfer_buffer;
- kfree(temp->kmalloc_ptr);
- urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER;
+ kfree(temp);
}
static int ci_hdrc_alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags)
{
- struct ci_hdrc_dma_aligned_buffer *temp, *kmalloc_ptr;
- const unsigned int ci_hdrc_usb_dma_align = 32;
- size_t kmalloc_size;
+ struct ci_hdrc_dma_aligned_buffer *temp;
- if (urb->num_sgs || urb->sg || urb->transfer_buffer_length == 0 ||
- !((uintptr_t)urb->transfer_buffer & (ci_hdrc_usb_dma_align - 1)))
+ if (urb->num_sgs || urb->sg || urb->transfer_buffer_length == 0)
+ return 0;
+ if (IS_ALIGNED((uintptr_t)urb->transfer_buffer, 4)
+ && IS_ALIGNED(urb->transfer_buffer_length, 4))
return 0;
- /* Allocate a buffer with enough padding for alignment */
- kmalloc_size = urb->transfer_buffer_length +
- sizeof(struct ci_hdrc_dma_aligned_buffer) +
- ci_hdrc_usb_dma_align - 1;
-
- kmalloc_ptr = kmalloc(kmalloc_size, mem_flags);
- if (!kmalloc_ptr)
+ temp = kmalloc(sizeof(*temp) + ALIGN(urb->transfer_buffer_length, 4), mem_flags);
+ if (!temp)
return -ENOMEM;
- /* Position our struct dma_aligned_buffer such that data is aligned */
- temp = PTR_ALIGN(kmalloc_ptr + 1, ci_hdrc_usb_dma_align) - 1;
- temp->kmalloc_ptr = kmalloc_ptr;
- temp->old_xfer_buffer = urb->transfer_buffer;
if (usb_urb_dir_out(urb))
memcpy(temp->data, urb->transfer_buffer,
urb->transfer_buffer_length);
- urb->transfer_buffer = temp->data;
+ temp->original_buffer = urb->transfer_buffer;
+ urb->transfer_buffer = temp->data;
urb->transfer_flags |= URB_ALIGNED_TEMP_BUFFER;
return 0;
@@ -448,7 +448,7 @@ static int ci_hdrc_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
ret = usb_hcd_map_urb_for_dma(hcd, urb, mem_flags);
if (ret)
- ci_hdrc_free_dma_aligned_buffer(urb);
+ ci_hdrc_free_dma_aligned_buffer(urb, false);
return ret;
}
@@ -456,7 +456,7 @@ static int ci_hdrc_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
static void ci_hdrc_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
{
usb_hcd_unmap_urb_for_dma(hcd, urb);
- ci_hdrc_free_dma_aligned_buffer(urb);
+ ci_hdrc_free_dma_aligned_buffer(urb, true);
}
#ifdef CONFIG_PM_SLEEP
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index 622c3b68aa1e..647e98f4e351 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -130,8 +130,11 @@ enum ci_role ci_otg_role(struct ci_hdrc *ci)
void ci_handle_vbus_change(struct ci_hdrc *ci)
{
- if (!ci->is_otg)
+ if (!ci->is_otg) {
+ if (ci->platdata->flags & CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS)
+ usb_gadget_vbus_connect(&ci->gadget);
return;
+ }
if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active)
usb_gadget_vbus_connect(&ci->gadget);
@@ -167,8 +170,10 @@ static int hw_wait_vbus_lower_bsv(struct ci_hdrc *ci)
void ci_handle_id_switch(struct ci_hdrc *ci)
{
- enum ci_role role = ci_otg_role(ci);
+ enum ci_role role;
+ mutex_lock(&ci->mutex);
+ role = ci_otg_role(ci);
if (role != ci->role) {
dev_dbg(ci->dev, "switching from %s to %s\n",
ci_role(ci)->name, ci->roles[role]->name);
@@ -198,6 +203,7 @@ void ci_handle_id_switch(struct ci_hdrc *ci)
if (role == CI_ROLE_GADGET)
ci_handle_vbus_change(ci);
}
+ mutex_unlock(&ci->mutex);
}
/**
* ci_otg_work - perform otg (vbus/id) event handle
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index c17516c29b63..929536dc96ec 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -424,8 +424,7 @@ static enum hrtimer_restart ci_otg_hrtimer_func(struct hrtimer *t)
/* Initialize timers */
static int ci_otg_init_timers(struct ci_hdrc *ci)
{
- hrtimer_init(&ci->otg_fsm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
- ci->otg_fsm_hrtimer.function = ci_otg_hrtimer_func;
+ hrtimer_setup(&ci->otg_fsm_hrtimer, ci_otg_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
return 0;
}
@@ -630,7 +629,6 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
ci_otg_queue_work(ci);
}
} else if (ci->fsm.otg->state == OTG_STATE_A_HOST) {
- pm_runtime_mark_last_busy(ci->dev);
pm_runtime_put_autosuspend(ci->dev);
return 0;
}
diff --git a/drivers/usb/chipidea/trace.h b/drivers/usb/chipidea/trace.h
index ca0e65b48f0a..1875419cd17f 100644
--- a/drivers/usb/chipidea/trace.h
+++ b/drivers/usb/chipidea/trace.h
@@ -31,7 +31,7 @@ TRACE_EVENT(ci_log,
__vstring(msg, vaf->fmt, vaf->va)
),
TP_fast_assign(
- __assign_str(name, dev_name(ci->dev));
+ __assign_str(name);
__assign_vstr(msg, vaf->fmt, vaf->va);
),
TP_printk("%s: %s", __get_str(name), __get_str(msg))
@@ -51,7 +51,7 @@ DECLARE_EVENT_CLASS(ci_log_trb,
__field(u32, type)
),
TP_fast_assign(
- __assign_str(name, hwep->name);
+ __assign_str(name);
__entry->req = &hwreq->req;
__entry->td = td;
__entry->dma = td->dma;
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 54c09245ad05..64a421ae0f05 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -10,6 +10,7 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dmapool.h>
+#include <linux/dma-direct.h>
#include <linux/err.h>
#include <linux/irqreturn.h>
#include <linux/kernel.h>
@@ -86,7 +87,7 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma)
hw_write(ci, OP_ENDPTLISTADDR, ~0, dma);
/* interrupt, error, port change, reset, sleep/suspend */
hw_write(ci, OP_USBINTR, ~0,
- USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
+ USBi_UI|USBi_UEI|USBi_PCI|USBi_URI);
} else {
hw_write(ci, OP_USBINTR, ~0, 0);
}
@@ -540,6 +541,126 @@ static int prepare_td_for_sg(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
return ret;
}
+/*
+ * Verify if the scatterlist is valid by iterating each sg entry.
+ * Return invalid sg entry index which is less than num_sgs.
+ */
+static int sglist_get_invalid_entry(struct device *dma_dev, u8 dir,
+ struct usb_request *req)
+{
+ int i;
+ struct scatterlist *s = req->sg;
+
+ if (req->num_sgs == 1)
+ return 1;
+
+ dir = dir ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
+
+ for (i = 0; i < req->num_sgs; i++, s = sg_next(s)) {
+ /* Only small sg (generally last sg) may be bounced. If
+ * that happens. we can't ensure the addr is page-aligned
+ * after dma map.
+ */
+ if (dma_kmalloc_needs_bounce(dma_dev, s->length, dir))
+ break;
+
+ /* Make sure each sg start address (except first sg) is
+ * page-aligned and end address (except last sg) is also
+ * page-aligned.
+ */
+ if (i == 0) {
+ if (!IS_ALIGNED(s->offset + s->length,
+ CI_HDRC_PAGE_SIZE))
+ break;
+ } else {
+ if (s->offset)
+ break;
+ if (!sg_is_last(s) && !IS_ALIGNED(s->length,
+ CI_HDRC_PAGE_SIZE))
+ break;
+ }
+ }
+
+ return i;
+}
+
+static int sglist_do_bounce(struct ci_hw_req *hwreq, int index,
+ bool copy, unsigned int *bounced)
+{
+ void *buf;
+ int i, ret, nents, num_sgs;
+ unsigned int rest, rounded;
+ struct scatterlist *sg, *src, *dst;
+
+ nents = index + 1;
+ ret = sg_alloc_table(&hwreq->sgt, nents, GFP_KERNEL);
+ if (ret)
+ return ret;
+
+ sg = src = hwreq->req.sg;
+ num_sgs = hwreq->req.num_sgs;
+ rest = hwreq->req.length;
+ dst = hwreq->sgt.sgl;
+
+ for (i = 0; i < index; i++) {
+ memcpy(dst, src, sizeof(*src));
+ rest -= src->length;
+ src = sg_next(src);
+ dst = sg_next(dst);
+ }
+
+ /* create one bounce buffer */
+ rounded = round_up(rest, CI_HDRC_PAGE_SIZE);
+ buf = kmalloc(rounded, GFP_KERNEL);
+ if (!buf) {
+ sg_free_table(&hwreq->sgt);
+ return -ENOMEM;
+ }
+
+ sg_set_buf(dst, buf, rounded);
+
+ hwreq->req.sg = hwreq->sgt.sgl;
+ hwreq->req.num_sgs = nents;
+ hwreq->sgt.sgl = sg;
+ hwreq->sgt.nents = num_sgs;
+
+ if (copy)
+ sg_copy_to_buffer(src, num_sgs - index, buf, rest);
+
+ *bounced = rest;
+
+ return 0;
+}
+
+static void sglist_do_debounce(struct ci_hw_req *hwreq, bool copy)
+{
+ void *buf;
+ int i, nents, num_sgs;
+ struct scatterlist *sg, *src, *dst;
+
+ sg = hwreq->req.sg;
+ num_sgs = hwreq->req.num_sgs;
+ src = sg_last(sg, num_sgs);
+ buf = sg_virt(src);
+
+ if (copy) {
+ dst = hwreq->sgt.sgl;
+ for (i = 0; i < num_sgs - 1; i++)
+ dst = sg_next(dst);
+
+ nents = hwreq->sgt.nents - num_sgs + 1;
+ sg_copy_from_buffer(dst, nents, buf, sg_dma_len(src));
+ }
+
+ hwreq->req.sg = hwreq->sgt.sgl;
+ hwreq->req.num_sgs = hwreq->sgt.nents;
+ hwreq->sgt.sgl = sg;
+ hwreq->sgt.nents = num_sgs;
+
+ kfree(buf);
+ sg_free_table(&hwreq->sgt);
+}
+
/**
* _hardware_enqueue: configures a request at hardware level
* @hwep: endpoint
@@ -552,6 +673,8 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
struct ci_hdrc *ci = hwep->ci;
int ret = 0;
struct td_node *firstnode, *lastnode;
+ unsigned int bounced_size;
+ struct scatterlist *sg;
/* don't queue twice */
if (hwreq->req.status == -EALREADY)
@@ -559,11 +682,29 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
hwreq->req.status = -EALREADY;
+ if (hwreq->req.num_sgs && hwreq->req.length &&
+ ci->has_short_pkt_limit) {
+ ret = sglist_get_invalid_entry(ci->dev->parent, hwep->dir,
+ &hwreq->req);
+ if (ret < hwreq->req.num_sgs) {
+ ret = sglist_do_bounce(hwreq, ret, hwep->dir == TX,
+ &bounced_size);
+ if (ret)
+ return ret;
+ }
+ }
+
ret = usb_gadget_map_request_by_dev(ci->dev->parent,
&hwreq->req, hwep->dir);
if (ret)
return ret;
+ if (hwreq->sgt.sgl) {
+ /* We've mapped a bigger buffer, now recover the actual size */
+ sg = sg_last(hwreq->req.sg, hwreq->req.num_sgs);
+ sg_dma_len(sg) = min(sg_dma_len(sg), bounced_size);
+ }
+
if (hwreq->req.num_mapped_sgs)
ret = prepare_td_for_sg(hwep, hwreq);
else
@@ -612,10 +753,17 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
do {
hw_write(ci, OP_USBCMD, USBCMD_ATDTW, USBCMD_ATDTW);
tmp_stat = hw_read(ci, OP_ENDPTSTAT, BIT(n));
- } while (!hw_read(ci, OP_USBCMD, USBCMD_ATDTW));
+ } while (!hw_read(ci, OP_USBCMD, USBCMD_ATDTW) && tmp_stat);
hw_write(ci, OP_USBCMD, USBCMD_ATDTW, 0);
if (tmp_stat)
goto done;
+
+ /* OP_ENDPTSTAT will be clear by HW when the endpoint met
+ * err. This dTD don't push to dQH if current dTD point is
+ * not the last one in previous request.
+ */
+ if (hwep->qh.ptr->curr != cpu_to_le32(prevlastnode->dma))
+ goto done;
}
/* QH configuration */
@@ -676,6 +824,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
unsigned remaining_length;
unsigned actual = hwreq->req.length;
struct ci_hdrc *ci = hwep->ci;
+ bool is_isoc = hwep->type == USB_ENDPOINT_XFER_ISOC;
if (hwreq->req.status != -EALREADY)
return -EINVAL;
@@ -688,7 +837,8 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
if ((TD_STATUS_ACTIVE & tmptoken) != 0) {
int n = hw_ep_bit(hwep->num, hwep->dir);
- if (ci->rev == CI_REVISION_24)
+ if (ci->rev == CI_REVISION_24 ||
+ ci->rev == CI_REVISION_22 || is_isoc)
if (!hw_read(ci, OP_ENDPTSTAT, BIT(n)))
reprime_dtd(ci, hwep, node);
hwreq->req.status = -EALREADY;
@@ -707,11 +857,15 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
hwreq->req.status = -EPROTO;
break;
} else if ((TD_STATUS_TR_ERR & hwreq->req.status)) {
- hwreq->req.status = -EILSEQ;
- break;
+ if (is_isoc) {
+ hwreq->req.status = 0;
+ } else {
+ hwreq->req.status = -EILSEQ;
+ break;
+ }
}
- if (remaining_length) {
+ if (remaining_length && !is_isoc) {
if (hwep->dir == TX) {
hwreq->req.status = -EPROTO;
break;
@@ -732,6 +886,10 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
usb_gadget_unmap_request_by_dev(hwep->ci->dev->parent,
&hwreq->req, hwep->dir);
+ /* sglist bounced */
+ if (hwreq->sgt.sgl)
+ sglist_do_debounce(hwreq, hwep->dir == RX);
+
hwreq->req.actual += actual;
if (hwreq->req.status)
@@ -876,6 +1034,7 @@ __releases(ci->lock)
__acquires(ci->lock)
{
int retval;
+ u32 intr;
spin_unlock(&ci->lock);
if (ci->gadget.speed != USB_SPEED_UNKNOWN)
@@ -889,6 +1048,11 @@ __acquires(ci->lock)
if (retval)
goto done;
+ /* clear SLI */
+ hw_write(ci, OP_USBSTS, USBi_SLI, USBi_SLI);
+ intr = hw_read(ci, OP_USBINTR, ~0);
+ hw_write(ci, OP_USBINTR, ~0, intr | USBi_SLI);
+
ci->status = usb_ep_alloc_request(&ci->ep0in->ep, GFP_ATOMIC);
if (ci->status == NULL)
retval = -ENOMEM;
@@ -953,6 +1117,12 @@ static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
return -EMSGSIZE;
}
+ if (ci->has_short_pkt_limit &&
+ hwreq->req.length > CI_MAX_REQ_SIZE) {
+ dev_err(hwep->ci->dev, "request length too big (max 16KB)\n");
+ return -EMSGSIZE;
+ }
+
/* first nuke then test link, e.g. previous status has not sent */
if (!list_empty(&hwreq->queue)) {
dev_err(hwep->ci->dev, "request already in queue\n");
@@ -1463,7 +1633,7 @@ static int ep_disable(struct usb_ep *ep)
*/
static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
{
- struct ci_hw_req *hwreq = NULL;
+ struct ci_hw_req *hwreq;
if (ep == NULL)
return NULL;
@@ -1567,6 +1737,9 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
usb_gadget_unmap_request(&hwep->ci->gadget, req, hwep->dir);
+ if (hwreq->sgt.sgl)
+ sglist_do_debounce(hwreq, false);
+
req->status = -ECONNRESET;
if (hwreq->req.complete != NULL) {
@@ -1718,6 +1891,13 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
ret = ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_VBUS_EVENT);
+ if (ci->usb_phy) {
+ if (is_active)
+ usb_phy_set_event(ci->usb_phy, USB_EVENT_VBUS);
+ else
+ usb_phy_set_event(ci->usb_phy, USB_EVENT_NONE);
+ }
+
if (ci->driver)
ci_hdrc_gadget_connect(_gadget, is_active);
@@ -1790,6 +1970,11 @@ static int ci_udc_pullup(struct usb_gadget *_gadget, int is_on)
hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
else
hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
+
+ if (ci->platdata->notify_event) {
+ _gadget->connected = is_on;
+ ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_PULLUP_EVENT);
+ }
pm_runtime_put_sync(ci->dev);
return 0;
@@ -2034,6 +2219,9 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci)
if (USBi_PCI & intr) {
ci->gadget.speed = hw_port_is_high_speed(ci) ?
USB_SPEED_HIGH : USB_SPEED_FULL;
+ if (ci->usb_phy)
+ usb_phy_set_event(ci->usb_phy,
+ USB_EVENT_ENUMERATED);
if (ci->suspended) {
if (ci->driver->resume) {
spin_unlock(&ci->lock);
@@ -2046,7 +2234,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci)
}
}
- if (USBi_UI & intr)
+ if ((USBi_UI | USBi_UEI) & intr)
isr_tr_complete_handler(ci);
if ((USBi_SLI & intr) && !(ci->suspended)) {
@@ -2191,6 +2379,10 @@ static void udc_suspend(struct ci_hdrc *ci)
*/
if (hw_read(ci, OP_ENDPTLISTADDR, ~0) == 0)
hw_write(ci, OP_ENDPTLISTADDR, ~0, ~0);
+
+ if (ci->gadget.connected &&
+ (!ci->suspended || !device_may_wakeup(ci->dev)))
+ usb_gadget_disconnect(&ci->gadget);
}
static void udc_resume(struct ci_hdrc *ci, bool power_lost)
@@ -2201,6 +2393,9 @@ static void udc_resume(struct ci_hdrc *ci, bool power_lost)
OTGSC_BSVIS | OTGSC_BSVIE);
if (ci->vbus_active)
usb_gadget_vbus_disconnect(&ci->gadget);
+ } else if (ci->vbus_active && ci->driver &&
+ !ci->gadget.connected) {
+ usb_gadget_connect(&ci->gadget);
}
/* Restore value 0 if it was set for power lost check */
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h
index 5193df1e18c7..c8a47389a46b 100644
--- a/drivers/usb/chipidea/udc.h
+++ b/drivers/usb/chipidea/udc.h
@@ -69,11 +69,13 @@ struct td_node {
* @req: request structure for gadget drivers
* @queue: link to QH list
* @tds: link to TD list
+ * @sgt: hold original sglist when bounce sglist
*/
struct ci_hw_req {
struct usb_request req;
struct list_head queue;
struct list_head tds;
+ struct sg_table sgt;
};
#ifdef CONFIG_USB_CHIPIDEA_UDC
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index acdb13316cd0..bb027d2bd700 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -1,13 +1,15 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2025 NXP
*/
#include <linux/module.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/delay.h>
+#include <linux/platform_device.h>
#include <linux/usb/otg.h>
#include "ci_hdrc_imx.h"
@@ -113,7 +115,6 @@
#define MX7D_USBNC_USB_CTRL2_DP_DM_MASK (BIT(12) | BIT(13) | \
BIT(14) | BIT(15))
-#define MX7D_USB_OTG_PHY_CFG1 0x30
#define MX7D_USB_OTG_PHY_CFG2_CHRG_CHRGSEL BIT(0)
#define MX7D_USB_OTG_PHY_CFG2_CHRG_VDATDETENB0 BIT(1)
#define MX7D_USB_OTG_PHY_CFG2_CHRG_VDATSRCENB0 BIT(2)
@@ -131,11 +132,41 @@
#define MX7D_USB_OTG_PHY_CFG1 0x30
#define TXPREEMPAMPTUNE0_BIT 28
#define TXPREEMPAMPTUNE0_MASK (3 << 28)
+#define TXRISETUNE0_BIT 24
+#define TXRISETUNE0_MASK (3 << 24)
#define TXVREFTUNE0_BIT 20
#define TXVREFTUNE0_MASK (0xf << 20)
#define MX6_USB_OTG_WAKEUP_BITS (MX6_BM_WAKEUP_ENABLE | MX6_BM_VBUS_WAKEUP | \
- MX6_BM_ID_WAKEUP)
+ MX6_BM_ID_WAKEUP | MX6SX_BM_DPDM_WAKEUP_EN)
+
+/*
+ * HSIO Block Control Register
+ */
+
+#define BLKCTL_USB_WAKEUP_CTRL 0x0
+#define BLKCTL_OTG_WAKE_ENABLE BIT(31)
+#define BLKCTL_OTG_VBUS_SESSVALID BIT(4)
+#define BLKCTL_OTG_ID_WAKEUP_EN BIT(2)
+#define BLKCTL_OTG_VBUS_WAKEUP_EN BIT(1)
+#define BLKCTL_OTG_DPDM_WAKEUP_EN BIT(0)
+
+#define BLKCTL_WAKEUP_SOURCE (BLKCTL_OTG_WAKE_ENABLE | \
+ BLKCTL_OTG_ID_WAKEUP_EN | \
+ BLKCTL_OTG_VBUS_WAKEUP_EN | \
+ BLKCTL_OTG_DPDM_WAKEUP_EN)
+
+#define S32G_WAKEUP_IE BIT(0)
+#define S32G_CORE_IE BIT(1)
+#define S32G_PWRFLTEN BIT(7)
+#define S32G_WAKEUPCTRL BIT(10)
+#define S32G_WAKEUPEN BIT(11)
+
+/* Workaround errata ERR050474 (handle packages that aren't 4 byte aligned) */
+#define S32G_UCMALLBE BIT(15)
+
+#define S32G_WAKEUP_BITS (S32G_WAKEUP_IE | S32G_CORE_IE | S32G_WAKEUPEN | \
+ S32G_WAKEUPCTRL)
struct usbmisc_ops {
/* It's called once when probe a usb device */
@@ -152,10 +183,15 @@ struct usbmisc_ops {
int (*charger_detection)(struct imx_usbmisc_data *data);
/* It's called when system resume from usb power lost */
int (*power_lost_check)(struct imx_usbmisc_data *data);
+ /* It's called when device controller changed pullup status */
+ void (*pullup)(struct imx_usbmisc_data *data, bool on);
+ /* It's called during suspend/resume to save power */
+ void (*vbus_comparator_on)(struct imx_usbmisc_data *data, bool on);
};
struct imx_usbmisc {
void __iomem *base;
+ void __iomem *blkctl;
spinlock_t lock;
const struct usbmisc_ops *ops;
};
@@ -437,7 +473,7 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
else if (data->oc_pol_configured)
reg &= ~MX6_BM_OVER_CUR_POLARITY;
}
- /* If the polarity is not set keep it as setup by the bootlader */
+ /* If the polarity is not set keep it as setup by the bootloader */
if (data->pwr_pol == 1)
reg |= MX6_BM_PWR_POLARITY;
writel(reg, usbmisc->base + data->index * 4);
@@ -594,6 +630,57 @@ static int usbmisc_vf610_init(struct imx_usbmisc_data *data)
return 0;
}
+static int usbmisc_s32g_set_wakeup(struct imx_usbmisc_data *data, bool enabled)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 reg;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+
+ reg = readl(usbmisc->base);
+ if (enabled)
+ reg |= S32G_WAKEUP_BITS;
+ else
+ reg &= ~S32G_WAKEUP_BITS;
+
+ writel(reg, usbmisc->base);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+ return 0;
+}
+
+static int usbmisc_s32g_init(struct imx_usbmisc_data *data, u32 extra_flags)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 reg;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+
+ reg = readl(usbmisc->base);
+
+ reg |= S32G_PWRFLTEN;
+ reg |= extra_flags;
+
+ writel(reg, usbmisc->base);
+
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+ usbmisc_s32g_set_wakeup(data, false);
+
+ return 0;
+}
+
+static int usbmisc_s32g2_init(struct imx_usbmisc_data *data)
+{
+ return usbmisc_s32g_init(data, S32G_UCMALLBE);
+}
+
+static int usbmisc_s32g3_init(struct imx_usbmisc_data *data)
+{
+ return usbmisc_s32g_init(data, 0);
+}
+
static int usbmisc_imx7d_set_wakeup
(struct imx_usbmisc_data *data, bool enabled)
{
@@ -642,7 +729,7 @@ static int usbmisc_imx7d_init(struct imx_usbmisc_data *data)
else if (data->oc_pol_configured)
reg &= ~MX6_BM_OVER_CUR_POLARITY;
}
- /* If the polarity is not set keep it as setup by the bootlader */
+ /* If the polarity is not set keep it as setup by the bootloader */
if (data->pwr_pol == 1)
reg |= MX6_BM_PWR_POLARITY;
writel(reg, usbmisc->base);
@@ -659,18 +746,27 @@ static int usbmisc_imx7d_init(struct imx_usbmisc_data *data)
usbmisc->base + MX7D_USBNC_USB_CTRL2);
/* PHY tuning for signal quality */
reg = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG1);
- if (data->emp_curr_control && data->emp_curr_control <=
+ if (data->emp_curr_control >= 0 &&
+ data->emp_curr_control <=
(TXPREEMPAMPTUNE0_MASK >> TXPREEMPAMPTUNE0_BIT)) {
reg &= ~TXPREEMPAMPTUNE0_MASK;
reg |= (data->emp_curr_control << TXPREEMPAMPTUNE0_BIT);
}
- if (data->dc_vol_level_adjust && data->dc_vol_level_adjust <=
+ if (data->dc_vol_level_adjust >= 0 &&
+ data->dc_vol_level_adjust <=
(TXVREFTUNE0_MASK >> TXVREFTUNE0_BIT)) {
reg &= ~TXVREFTUNE0_MASK;
reg |= (data->dc_vol_level_adjust << TXVREFTUNE0_BIT);
}
+ if (data->rise_fall_time_adjust >= 0 &&
+ data->rise_fall_time_adjust <=
+ (TXRISETUNE0_MASK >> TXRISETUNE0_BIT)) {
+ reg &= ~TXRISETUNE0_MASK;
+ reg |= (data->rise_fall_time_adjust << TXRISETUNE0_BIT);
+ }
+
writel(reg, usbmisc->base + MX7D_USB_OTG_PHY_CFG1);
}
@@ -875,6 +971,33 @@ static int imx7d_charger_detection(struct imx_usbmisc_data *data)
return ret;
}
+static void usbmisc_imx7d_vbus_comparator_on(struct imx_usbmisc_data *data,
+ bool on)
+{
+ unsigned long flags;
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ u32 val;
+
+ if (data->hsic)
+ return;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ /*
+ * Disable VBUS valid comparator when in suspend mode,
+ * when OTG is disabled and DRVVBUS0 is asserted case
+ * the Bandgap circuitry and VBUS Valid comparator are
+ * still powered, even in Suspend or Sleep mode.
+ */
+ val = readl(usbmisc->base + MX7D_USB_OTG_PHY_CFG2);
+ if (on)
+ val |= MX7D_USB_OTG_PHY_CFG2_DRVVBUS0;
+ else
+ val &= ~MX7D_USB_OTG_PHY_CFG2_DRVVBUS0;
+
+ writel(val, usbmisc->base + MX7D_USB_OTG_PHY_CFG2);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+}
+
static int usbmisc_imx7ulp_init(struct imx_usbmisc_data *data)
{
struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
@@ -900,7 +1023,7 @@ static int usbmisc_imx7ulp_init(struct imx_usbmisc_data *data)
else if (data->oc_pol_configured)
reg &= ~MX6_BM_OVER_CUR_POLARITY;
}
- /* If the polarity is not set keep it as setup by the bootlader */
+ /* If the polarity is not set keep it as setup by the bootloader */
if (data->pwr_pol == 1)
reg |= MX6_BM_PWR_POLARITY;
@@ -939,6 +1062,34 @@ static int usbmisc_imx7ulp_init(struct imx_usbmisc_data *data)
return 0;
}
+static void usbmisc_imx7d_pullup(struct imx_usbmisc_data *data, bool on)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 val;
+
+ if (on)
+ return;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ val = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2);
+ val &= ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_MASK;
+ val |= MX7D_USBNC_USB_CTRL2_OPMODE(1);
+ val |= MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_EN;
+ writel(val, usbmisc->base + MX7D_USBNC_USB_CTRL2);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+ /* Last for at least 1 micro-frame to let host see disconnect signal */
+ usleep_range(125, 150);
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ val &= ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_MASK;
+ val |= MX7D_USBNC_USB_CTRL2_OPMODE(0);
+ val &= ~MX7D_USBNC_USB_CTRL2_OPMODE_OVERRIDE_EN;
+ writel(val, usbmisc->base + MX7D_USBNC_USB_CTRL2);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+}
+
static int usbmisc_imx7d_power_lost_check(struct imx_usbmisc_data *data)
{
struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
@@ -977,6 +1128,49 @@ static int usbmisc_imx6sx_power_lost_check(struct imx_usbmisc_data *data)
return 0;
}
+static int usbmisc_s32g_power_lost_check(struct imx_usbmisc_data *data)
+{
+ return 1;
+}
+
+static u32 usbmisc_blkctl_wakeup_setting(struct imx_usbmisc_data *data)
+{
+ u32 wakeup_setting = BLKCTL_WAKEUP_SOURCE;
+
+ if (data->ext_id || data->available_role != USB_DR_MODE_OTG)
+ wakeup_setting &= ~BLKCTL_OTG_ID_WAKEUP_EN;
+
+ if (data->ext_vbus || data->available_role == USB_DR_MODE_HOST)
+ wakeup_setting &= ~BLKCTL_OTG_VBUS_WAKEUP_EN;
+
+ /* Select session valid as VBUS wakeup source */
+ wakeup_setting |= BLKCTL_OTG_VBUS_SESSVALID;
+
+ return wakeup_setting;
+}
+
+static int usbmisc_imx95_set_wakeup(struct imx_usbmisc_data *data, bool enabled)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 val;
+
+ if (!usbmisc->blkctl)
+ return 0;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ val = readl(usbmisc->blkctl + BLKCTL_USB_WAKEUP_CTRL);
+ val &= ~BLKCTL_WAKEUP_SOURCE;
+
+ if (enabled)
+ val |= usbmisc_blkctl_wakeup_setting(data);
+
+ writel(val, usbmisc->blkctl + BLKCTL_USB_WAKEUP_CTRL);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+ return 0;
+}
+
static const struct usbmisc_ops imx25_usbmisc_ops = {
.init = usbmisc_imx25_init,
.post = usbmisc_imx25_post,
@@ -1018,6 +1212,8 @@ static const struct usbmisc_ops imx7d_usbmisc_ops = {
.set_wakeup = usbmisc_imx7d_set_wakeup,
.charger_detection = imx7d_charger_detection,
.power_lost_check = usbmisc_imx7d_power_lost_check,
+ .pullup = usbmisc_imx7d_pullup,
+ .vbus_comparator_on = usbmisc_imx7d_vbus_comparator_on,
};
static const struct usbmisc_ops imx7ulp_usbmisc_ops = {
@@ -1028,6 +1224,35 @@ static const struct usbmisc_ops imx7ulp_usbmisc_ops = {
.power_lost_check = usbmisc_imx7d_power_lost_check,
};
+static const struct usbmisc_ops imx94_usbmisc_ops = {
+ .init = usbmisc_imx7d_init,
+ .set_wakeup = usbmisc_imx95_set_wakeup,
+ .charger_detection = imx7d_charger_detection,
+ .power_lost_check = usbmisc_imx7d_power_lost_check,
+ .vbus_comparator_on = usbmisc_imx7d_vbus_comparator_on,
+};
+
+static const struct usbmisc_ops imx95_usbmisc_ops = {
+ .init = usbmisc_imx7d_init,
+ .set_wakeup = usbmisc_imx95_set_wakeup,
+ .charger_detection = imx7d_charger_detection,
+ .power_lost_check = usbmisc_imx7d_power_lost_check,
+ .pullup = usbmisc_imx7d_pullup,
+ .vbus_comparator_on = usbmisc_imx7d_vbus_comparator_on,
+};
+
+static const struct usbmisc_ops s32g2_usbmisc_ops = {
+ .init = usbmisc_s32g2_init,
+ .set_wakeup = usbmisc_s32g_set_wakeup,
+ .power_lost_check = usbmisc_s32g_power_lost_check,
+};
+
+static const struct usbmisc_ops s32g3_usbmisc_ops = {
+ .init = usbmisc_s32g3_init,
+ .set_wakeup = usbmisc_s32g_set_wakeup,
+ .power_lost_check = usbmisc_s32g_power_lost_check,
+};
+
static inline bool is_imx53_usbmisc(struct imx_usbmisc_data *data)
{
struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
@@ -1122,6 +1347,21 @@ int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect)
}
EXPORT_SYMBOL_GPL(imx_usbmisc_charger_detection);
+int imx_usbmisc_pullup(struct imx_usbmisc_data *data, bool on)
+{
+ struct imx_usbmisc *usbmisc;
+
+ if (!data)
+ return 0;
+
+ usbmisc = dev_get_drvdata(data->dev);
+ if (usbmisc->ops->pullup)
+ usbmisc->ops->pullup(data, on);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(imx_usbmisc_pullup);
+
int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup)
{
struct imx_usbmisc *usbmisc;
@@ -1132,6 +1372,9 @@ int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup)
usbmisc = dev_get_drvdata(data->dev);
+ if (usbmisc->ops->vbus_comparator_on)
+ usbmisc->ops->vbus_comparator_on(data, false);
+
if (wakeup && usbmisc->ops->set_wakeup)
ret = usbmisc->ops->set_wakeup(data, true);
if (ret) {
@@ -1142,7 +1385,7 @@ int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup)
if (usbmisc->ops->hsic_set_clk && data->hsic)
ret = usbmisc->ops->hsic_set_clk(data, false);
if (ret) {
- dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret);
+ dev_err(data->dev, "hsic_set_clk failed, ret=%d\n", ret);
return ret;
}
@@ -1181,10 +1424,13 @@ int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup)
if (usbmisc->ops->hsic_set_clk && data->hsic)
ret = usbmisc->ops->hsic_set_clk(data, true);
if (ret) {
- dev_err(data->dev, "set_wakeup failed, ret=%d\n", ret);
+ dev_err(data->dev, "hsic_set_clk failed, ret=%d\n", ret);
goto hsic_set_clk_fail;
}
+ if (usbmisc->ops->vbus_comparator_on)
+ usbmisc->ops->vbus_comparator_on(data, true);
+
return 0;
hsic_set_clk_fail:
@@ -1239,6 +1485,26 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
.compatible = "fsl,imx7ulp-usbmisc",
.data = &imx7ulp_usbmisc_ops,
},
+ {
+ .compatible = "fsl,imx8ulp-usbmisc",
+ .data = &imx7ulp_usbmisc_ops,
+ },
+ {
+ .compatible = "fsl,imx94-usbmisc",
+ .data = &imx94_usbmisc_ops,
+ },
+ {
+ .compatible = "fsl,imx95-usbmisc",
+ .data = &imx95_usbmisc_ops,
+ },
+ {
+ .compatible = "nxp,s32g2-usbmisc",
+ .data = &s32g2_usbmisc_ops,
+ },
+ {
+ .compatible = "nxp,s32g3-usbmisc",
+ .data = &s32g3_usbmisc_ops,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids);
@@ -1246,6 +1512,7 @@ MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids);
static int usbmisc_imx_probe(struct platform_device *pdev)
{
struct imx_usbmisc *data;
+ struct resource *res;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -1257,20 +1524,23 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
if (IS_ERR(data->base))
return PTR_ERR(data->base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res) {
+ data->blkctl = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(data->blkctl))
+ return PTR_ERR(data->blkctl);
+ } else if (device_is_compatible(&pdev->dev, "fsl,imx95-usbmisc")) {
+ dev_warn(&pdev->dev, "wakeup setting is missing\n");
+ }
+
data->ops = of_device_get_match_data(&pdev->dev);
platform_set_drvdata(pdev, data);
return 0;
}
-static int usbmisc_imx_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
static struct platform_driver usbmisc_imx_driver = {
.probe = usbmisc_imx_probe,
- .remove = usbmisc_imx_remove,
.driver = {
.name = "usbmisc_imx",
.of_match_table = usbmisc_imx_dt_ids,
generated by cgit (git 2.34.1) at 2025-12-21 20:05:18 +0000