Below are main changes for v5.11-rc1:

For Chipidea USB2:
 - Add tracepoint support for UDC
 - Some tiny improvements
 
 For Cadence USB3
 - Add some quirks for host mode, and let host work well at more use cases
 	* SKIP_PHY_INIT
 	* Disable BEI
 	* Enable runtime PM default for i.mx platform
 - Some tiny improvements
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Merge tag 'usb-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

Below are main changes for v5.11-rc1:

For Chipidea USB2:
- Add tracepoint support for UDC
- Some tiny improvements

For Cadence USB3
- Add some quirks for host mode, and let host work well at more use cases
	* SKIP_PHY_INIT
	* Disable BEI
	* Enable runtime PM default for i.mx platform
- Some tiny improvements

* tag 'usb-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
  MAINTAINERS: Add myself as a reviewer for CADENCE USB3 DRD IP DRIVER
  usb: chipidea: ci_hdrc_imx: Use of_device_get_match_data()
  usb: chipidea: usbmisc_imx: Use of_device_get_match_data()
  usb: cdns3: fix NULL pointer dereference on no platform data
  usb: chipidea: trace: fix the endian issue
  usb: chipidea: add tracepoint support for udc
  doc: dt-binding: cdns,usb3: add wakeup-irq
  usb: cdns3: imx: enable runtime pm by default
  usb: cdns3: add quirk for enable runtime pm by default
  usb: cdns3: host: disable BEI support
  usb: cdns3: host: add xhci_plat_priv quirk XHCI_SKIP_PHY_INIT
  usb: cdns3: host: add .suspend_quirk for xhci-plat.c
  usb: cdns3: Rids of duplicate error message
  usb: cdns3: Add static to cdns3_gadget_exit function
This commit is contained in:
Greg Kroah-Hartman 2020-12-10 11:30:31 +01:00
commit d2a968dddf
15 changed files with 210 additions and 32 deletions

View file

@ -26,16 +26,21 @@ properties:
- const: dev
interrupts:
minItems: 3
items:
- description: OTG/DRD controller interrupt
- description: XHCI host controller interrupt
- description: Device controller interrupt
- description: interrupt used to wake up core, e.g when usbcmd.rs is
cleared by xhci core, this interrupt is optional
interrupt-names:
minItems: 3
items:
- const: host
- const: peripheral
- const: otg
- const: wakeup
dr_mode:
enum: [host, otg, peripheral]

View file

@ -3863,6 +3863,7 @@ CADENCE USB3 DRD IP DRIVER
M: Peter Chen <peter.chen@nxp.com>
M: Pawel Laszczak <pawell@cadence.com>
M: Roger Quadros <rogerq@ti.com>
R: Aswath Govindraju <a-govindraju@ti.com>
L: linux-usb@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git

View file

@ -151,6 +151,7 @@ static int cdns_imx_platform_suspend(struct device *dev,
bool suspend, bool wakeup);
static struct cdns3_platform_data cdns_imx_pdata = {
.platform_suspend = cdns_imx_platform_suspend,
.quirks = CDNS3_DEFAULT_PM_RUNTIME_ALLOW,
};
static const struct of_dev_auxdata cdns_imx_auxdata[] = {
@ -206,7 +207,6 @@ static int cdns_imx_probe(struct platform_device *pdev)
device_set_wakeup_capable(dev, true);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_forbid(dev);
return ret;
err:

View file

@ -465,11 +465,8 @@ static int cdns3_probe(struct platform_device *pdev)
cdns->xhci_res[1] = *res;
cdns->dev_irq = platform_get_irq_byname(pdev, "peripheral");
if (cdns->dev_irq == -EPROBE_DEFER)
return cdns->dev_irq;
if (cdns->dev_irq < 0)
dev_err(dev, "couldn't get peripheral irq\n");
return cdns->dev_irq;
regs = devm_platform_ioremap_resource_byname(pdev, "dev");
if (IS_ERR(regs))
@ -477,14 +474,9 @@ static int cdns3_probe(struct platform_device *pdev)
cdns->dev_regs = regs;
cdns->otg_irq = platform_get_irq_byname(pdev, "otg");
if (cdns->otg_irq == -EPROBE_DEFER)
if (cdns->otg_irq < 0)
return cdns->otg_irq;
if (cdns->otg_irq < 0) {
dev_err(dev, "couldn't get otg irq\n");
return cdns->otg_irq;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "otg");
if (!res) {
dev_err(dev, "couldn't get otg resource\n");
@ -569,7 +561,8 @@ static int cdns3_probe(struct platform_device *pdev)
device_set_wakeup_capable(dev, true);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_forbid(dev);
if (!(cdns->pdata && (cdns->pdata->quirks & CDNS3_DEFAULT_PM_RUNTIME_ALLOW)))
pm_runtime_forbid(dev);
/*
* The controller needs less time between bus and controller suspend,

View file

@ -42,6 +42,8 @@ struct cdns3_role_driver {
struct cdns3_platform_data {
int (*platform_suspend)(struct device *dev,
bool suspend, bool wakeup);
unsigned long quirks;
#define CDNS3_DEFAULT_PM_RUNTIME_ALLOW BIT(0)
};
/**
@ -73,6 +75,7 @@ struct cdns3_platform_data {
* @wakeup_pending: wakeup interrupt pending
* @pdata: platform data from glue layer
* @lock: spinlock structure
* @xhci_plat_data: xhci private data structure pointer
*/
struct cdns3 {
struct device *dev;
@ -106,6 +109,7 @@ struct cdns3 {
bool wakeup_pending;
struct cdns3_platform_data *pdata;
spinlock_t lock;
struct xhci_plat_priv *xhci_plat_data;
};
int cdns3_hw_role_switch(struct cdns3 *cdns);

View file

@ -13,7 +13,6 @@
#ifdef CONFIG_USB_CDNS3_GADGET
int cdns3_gadget_init(struct cdns3 *cdns);
void cdns3_gadget_exit(struct cdns3 *cdns);
#else
static inline int cdns3_gadget_init(struct cdns3 *cdns)
@ -21,8 +20,6 @@ static inline int cdns3_gadget_init(struct cdns3 *cdns)
return -ENXIO;
}
static inline void cdns3_gadget_exit(struct cdns3 *cdns) { }
#endif
#endif /* __LINUX_CDNS3_GADGET_EXPORT */

View file

@ -3084,7 +3084,7 @@ static void cdns3_gadget_release(struct device *dev)
kfree(priv_dev);
}
void cdns3_gadget_exit(struct cdns3 *cdns)
static void cdns3_gadget_exit(struct cdns3 *cdns)
{
struct cdns3_device *priv_dev;

View file

@ -9,9 +9,11 @@
#ifndef __LINUX_CDNS3_HOST_EXPORT
#define __LINUX_CDNS3_HOST_EXPORT
struct usb_hcd;
#ifdef CONFIG_USB_CDNS3_HOST
int cdns3_host_init(struct cdns3 *cdns);
int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd);
#else
@ -21,6 +23,10 @@ static inline int cdns3_host_init(struct cdns3 *cdns)
}
static inline void cdns3_host_exit(struct cdns3 *cdns) { }
static inline int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd)
{
return 0;
}
#endif /* CONFIG_USB_CDNS3_HOST */

View file

@ -14,6 +14,19 @@
#include "drd.h"
#include "host-export.h"
#include <linux/usb/hcd.h>
#include "../host/xhci.h"
#include "../host/xhci-plat.h"
#define XECP_PORT_CAP_REG 0x8000
#define XECP_AUX_CTRL_REG1 0x8120
#define CFG_RXDET_P3_EN BIT(15)
#define LPM_2_STB_SWITCH_EN BIT(25)
static const struct xhci_plat_priv xhci_plat_cdns3_xhci = {
.quirks = XHCI_SKIP_PHY_INIT | XHCI_AVOID_BEI,
.suspend_quirk = xhci_cdns3_suspend_quirk,
};
static int __cdns3_host_init(struct cdns3 *cdns)
{
@ -39,10 +52,25 @@ static int __cdns3_host_init(struct cdns3 *cdns)
goto err1;
}
cdns->xhci_plat_data = kmemdup(&xhci_plat_cdns3_xhci,
sizeof(struct xhci_plat_priv), GFP_KERNEL);
if (!cdns->xhci_plat_data) {
ret = -ENOMEM;
goto err1;
}
if (cdns->pdata && (cdns->pdata->quirks & CDNS3_DEFAULT_PM_RUNTIME_ALLOW))
cdns->xhci_plat_data->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
ret = platform_device_add_data(xhci, cdns->xhci_plat_data,
sizeof(struct xhci_plat_priv));
if (ret)
goto free_memory;
ret = platform_device_add(xhci);
if (ret) {
dev_err(cdns->dev, "failed to register xHCI device\n");
goto err1;
goto free_memory;
}
/* Glue needs to access xHCI region register for Power management */
@ -51,13 +79,43 @@ static int __cdns3_host_init(struct cdns3 *cdns)
cdns->xhci_regs = hcd->regs;
return 0;
free_memory:
kfree(cdns->xhci_plat_data);
err1:
platform_device_put(xhci);
return ret;
}
int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
u32 value;
if (pm_runtime_status_suspended(hcd->self.controller))
return 0;
/* set usbcmd.EU3S */
value = readl(&xhci->op_regs->command);
value |= CMD_PM_INDEX;
writel(value, &xhci->op_regs->command);
if (hcd->regs) {
value = readl(hcd->regs + XECP_AUX_CTRL_REG1);
value |= CFG_RXDET_P3_EN;
writel(value, hcd->regs + XECP_AUX_CTRL_REG1);
value = readl(hcd->regs + XECP_PORT_CAP_REG);
value |= LPM_2_STB_SWITCH_EN;
writel(value, hcd->regs + XECP_PORT_CAP_REG);
}
return 0;
}
static void cdns3_host_exit(struct cdns3 *cdns)
{
kfree(cdns->xhci_plat_data);
platform_device_unregister(cdns->host_dev);
cdns->host_dev = NULL;
cdns3_drd_host_off(cdns);

View file

@ -1,8 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
# define_trace.h needs to know how to find our header
CFLAGS_trace.o := -I$(src)
obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc.o
ci_hdrc-y := core.o otg.o debug.o ulpi.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o trace.o
ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST) += host.o
ci_hdrc-$(CONFIG_USB_OTG_FSM) += otg_fsm.o

View file

@ -320,16 +320,11 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
.notify_event = ci_hdrc_imx_notify_event,
};
int ret;
const struct of_device_id *of_id;
const struct ci_hdrc_imx_platform_flag *imx_platform_flag;
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
of_id = of_match_device(ci_hdrc_imx_dt_ids, dev);
if (!of_id)
return -ENODEV;
imx_platform_flag = of_id->data;
imx_platform_flag = of_device_get_match_data(&pdev->dev);
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)

View file

@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Chipidea Device Mode Trace Support
*
* Copyright (C) 2020 NXP
*
* Author: Peter Chen <peter.chen@nxp.com>
*/
#define CREATE_TRACE_POINTS
#include "trace.h"
void ci_log(struct ci_hdrc *ci, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
trace_ci_log(ci, &vaf);
va_end(args);
}

View file

@ -0,0 +1,92 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Trace support header file for device mode
*
* Copyright (C) 2020 NXP
*
* Author: Peter Chen <peter.chen@nxp.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM chipidea
#if !defined(__LINUX_CHIPIDEA_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __LINUX_CHIPIDEA_TRACE
#include <linux/types.h>
#include <linux/tracepoint.h>
#include <linux/usb/chipidea.h>
#include "ci.h"
#include "udc.h"
#define CHIPIDEA_MSG_MAX 500
void ci_log(struct ci_hdrc *ci, const char *fmt, ...);
TRACE_EVENT(ci_log,
TP_PROTO(struct ci_hdrc *ci, struct va_format *vaf),
TP_ARGS(ci, vaf),
TP_STRUCT__entry(
__string(name, dev_name(ci->dev))
__dynamic_array(char, msg, CHIPIDEA_MSG_MAX)
),
TP_fast_assign(
__assign_str(name, dev_name(ci->dev));
vsnprintf(__get_str(msg), CHIPIDEA_MSG_MAX, vaf->fmt, *vaf->va);
),
TP_printk("%s: %s", __get_str(name), __get_str(msg))
);
DECLARE_EVENT_CLASS(ci_log_trb,
TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
TP_ARGS(hwep, hwreq, td),
TP_STRUCT__entry(
__string(name, hwep->name)
__field(struct td_node *, td)
__field(struct usb_request *, req)
__field(dma_addr_t, dma)
__field(s32, td_remaining_size)
__field(u32, next)
__field(u32, token)
__field(u32, type)
),
TP_fast_assign(
__assign_str(name, hwep->name);
__entry->req = &hwreq->req;
__entry->td = td;
__entry->dma = td->dma;
__entry->td_remaining_size = td->td_remaining_size;
__entry->next = le32_to_cpu(td->ptr->next);
__entry->token = le32_to_cpu(td->ptr->token);
__entry->type = usb_endpoint_type(hwep->ep.desc);
),
TP_printk("%s: req: %p, td: %p, td_dma_address: %pad, remaining_size: %d, "
"next: %x, total bytes: %d, status: %lx",
__get_str(name), __entry->req, __entry->td, &__entry->dma,
__entry->td_remaining_size, __entry->next,
(int)((__entry->token & TD_TOTAL_BYTES) >> __ffs(TD_TOTAL_BYTES)),
__entry->token & TD_STATUS
)
);
DEFINE_EVENT(ci_log_trb, ci_prepare_td,
TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
TP_ARGS(hwep, hwreq, td)
);
DEFINE_EVENT(ci_log_trb, ci_complete_td,
TP_PROTO(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, struct td_node *td),
TP_ARGS(hwep, hwreq, td)
);
#endif /* __LINUX_CHIPIDEA_TRACE */
/* this part must be outside header guard */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>

View file

@ -26,6 +26,7 @@
#include "bits.h"
#include "otg.h"
#include "otg_fsm.h"
#include "trace.h"
/* control endpoint description */
static const struct usb_endpoint_descriptor
@ -569,14 +570,18 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
if (ret)
return ret;
firstnode = list_first_entry(&hwreq->tds, struct td_node, td);
lastnode = list_entry(hwreq->tds.prev,
struct td_node, td);
lastnode->ptr->next = cpu_to_le32(TD_TERMINATE);
if (!hwreq->req.no_interrupt)
lastnode->ptr->token |= cpu_to_le32(TD_IOC);
list_for_each_entry_safe(firstnode, lastnode, &hwreq->tds, td)
trace_ci_prepare_td(hwep, hwreq, firstnode);
firstnode = list_first_entry(&hwreq->tds, struct td_node, td);
wmb();
hwreq->req.actual = 0;
@ -671,6 +676,7 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
list_for_each_entry_safe(node, tmpnode, &hwreq->tds, td) {
tmptoken = le32_to_cpu(node->ptr->token);
trace_ci_complete_td(hwep, hwreq, node);
if ((TD_STATUS_ACTIVE & tmptoken) != 0) {
int n = hw_ep_bit(hwep->num, hwep->dir);

View file

@ -1134,11 +1134,6 @@ MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids);
static int usbmisc_imx_probe(struct platform_device *pdev)
{
struct imx_usbmisc *data;
const struct of_device_id *of_id;
of_id = of_match_device(usbmisc_imx_dt_ids, &pdev->dev);
if (!of_id)
return -ENODEV;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
@ -1150,7 +1145,7 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
if (IS_ERR(data->base))
return PTR_ERR(data->base);
data->ops = (const struct usbmisc_ops *)of_id->data;
data->ops = of_device_get_match_data(&pdev->dev);
platform_set_drvdata(pdev, data);
return 0;