2 * Allwinner sun4i USB phy driver
4 * Copyright (C) 2014-2015 Hans de Goede <hdegoede@redhat.com>
7 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
9 * Modelled after: Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver
10 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
11 * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
24 #include <linux/clk.h>
25 #include <linux/delay.h>
26 #include <linux/err.h>
27 #include <linux/extcon.h>
29 #include <linux/interrupt.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/mutex.h>
34 #include <linux/of_address.h>
35 #include <linux/of_device.h>
36 #include <linux/of_gpio.h>
37 #include <linux/phy/phy.h>
38 #include <linux/phy/phy-sun4i-usb.h>
39 #include <linux/platform_device.h>
40 #include <linux/power_supply.h>
41 #include <linux/regulator/consumer.h>
42 #include <linux/reset.h>
43 #include <linux/spinlock.h>
44 #include <linux/usb/of.h>
45 #include <linux/workqueue.h>
48 #define REG_PHYCTL_A10 0x04
49 #define REG_PHYBIST 0x08
50 #define REG_PHYTUNE 0x0c
51 #define REG_PHYCTL_A33 0x10
52 #define REG_PHY_UNK_H3 0x20
54 #define REG_PMU_UNK1 0x10
56 #define PHYCTL_DATA BIT(7)
58 #define SUNXI_AHB_ICHR8_EN BIT(10)
59 #define SUNXI_AHB_INCR4_BURST_EN BIT(9)
60 #define SUNXI_AHB_INCRX_ALIGN_EN BIT(8)
61 #define SUNXI_ULPI_BYPASS_EN BIT(0)
63 /* ISCR, Interface Status and Control bits */
64 #define ISCR_ID_PULLUP_EN (1 << 17)
65 #define ISCR_DPDM_PULLUP_EN (1 << 16)
66 /* sunxi has the phy id/vbus pins not connected, so we use the force bits */
67 #define ISCR_FORCE_ID_MASK (3 << 14)
68 #define ISCR_FORCE_ID_LOW (2 << 14)
69 #define ISCR_FORCE_ID_HIGH (3 << 14)
70 #define ISCR_FORCE_VBUS_MASK (3 << 12)
71 #define ISCR_FORCE_VBUS_LOW (2 << 12)
72 #define ISCR_FORCE_VBUS_HIGH (3 << 12)
74 /* Common Control Bits for Both PHYs */
75 #define PHY_PLL_BW 0x03
76 #define PHY_RES45_CAL_EN 0x0c
78 /* Private Control Bits for Each PHY */
79 #define PHY_TX_AMPLITUDE_TUNE 0x20
80 #define PHY_TX_SLEWRATE_TUNE 0x22
81 #define PHY_VBUSVALID_TH_SEL 0x25
82 #define PHY_PULLUP_RES_SEL 0x27
83 #define PHY_OTG_FUNC_EN 0x28
84 #define PHY_VBUS_DET_EN 0x29
85 #define PHY_DISCON_TH_SEL 0x2a
86 #define PHY_SQUELCH_DETECT 0x3c
91 * Note do not raise the debounce time, we must report Vusb high within 100ms
92 * otherwise we get Vbus errors
94 #define DEBOUNCE_TIME msecs_to_jiffies(50)
95 #define POLL_TIME msecs_to_jiffies(250)
97 enum sun4i_usb_phy_type
{
105 struct sun4i_usb_phy_cfg
{
107 enum sun4i_usb_phy_type type
;
110 bool dedicated_clocks
;
111 bool enable_pmu_unk1
;
114 struct sun4i_usb_phy_data
{
116 const struct sun4i_usb_phy_cfg
*cfg
;
117 enum usb_dr_mode dr_mode
;
118 spinlock_t reg_lock
; /* guard access to phyctl reg */
119 struct sun4i_usb_phy
{
122 struct regulator
*vbus
;
123 struct reset_control
*reset
;
128 /* phy0 / otg related variables */
129 struct extcon_dev
*extcon
;
131 struct gpio_desc
*id_det_gpio
;
132 struct gpio_desc
*vbus_det_gpio
;
133 struct power_supply
*vbus_power_supply
;
134 struct notifier_block vbus_power_nb
;
135 bool vbus_power_nb_registered
;
136 bool force_session_end
;
141 struct delayed_work detect
;
144 #define to_sun4i_usb_phy_data(phy) \
145 container_of((phy), struct sun4i_usb_phy_data, phys[(phy)->index])
147 static void sun4i_usb_phy0_update_iscr(struct phy
*_phy
, u32 clr
, u32 set
)
149 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
150 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
153 iscr
= readl(data
->base
+ REG_ISCR
);
156 writel(iscr
, data
->base
+ REG_ISCR
);
159 static void sun4i_usb_phy0_set_id_detect(struct phy
*phy
, u32 val
)
162 val
= ISCR_FORCE_ID_HIGH
;
164 val
= ISCR_FORCE_ID_LOW
;
166 sun4i_usb_phy0_update_iscr(phy
, ISCR_FORCE_ID_MASK
, val
);
169 static void sun4i_usb_phy0_set_vbus_detect(struct phy
*phy
, u32 val
)
172 val
= ISCR_FORCE_VBUS_HIGH
;
174 val
= ISCR_FORCE_VBUS_LOW
;
176 sun4i_usb_phy0_update_iscr(phy
, ISCR_FORCE_VBUS_MASK
, val
);
179 static void sun4i_usb_phy_write(struct sun4i_usb_phy
*phy
, u32 addr
, u32 data
,
182 struct sun4i_usb_phy_data
*phy_data
= to_sun4i_usb_phy_data(phy
);
183 u32 temp
, usbc_bit
= BIT(phy
->index
* 2);
184 void __iomem
*phyctl
= phy_data
->base
+ phy_data
->cfg
->phyctl_offset
;
188 spin_lock_irqsave(&phy_data
->reg_lock
, flags
);
190 if (phy_data
->cfg
->type
== sun8i_a33_phy
||
191 phy_data
->cfg
->type
== sun50i_a64_phy
) {
192 /* A33 or A64 needs us to set phyctl to 0 explicitly */
196 for (i
= 0; i
< len
; i
++) {
197 temp
= readl(phyctl
);
199 /* clear the address portion */
200 temp
&= ~(0xff << 8);
202 /* set the address */
203 temp
|= ((addr
+ i
) << 8);
204 writel(temp
, phyctl
);
206 /* set the data bit and clear usbc bit*/
207 temp
= readb(phyctl
);
211 temp
&= ~PHYCTL_DATA
;
213 writeb(temp
, phyctl
);
216 temp
= readb(phyctl
);
218 writeb(temp
, phyctl
);
220 temp
= readb(phyctl
);
222 writeb(temp
, phyctl
);
227 spin_unlock_irqrestore(&phy_data
->reg_lock
, flags
);
230 static void sun4i_usb_phy_passby(struct sun4i_usb_phy
*phy
, int enable
)
237 bits
= SUNXI_AHB_ICHR8_EN
| SUNXI_AHB_INCR4_BURST_EN
|
238 SUNXI_AHB_INCRX_ALIGN_EN
| SUNXI_ULPI_BYPASS_EN
;
240 reg_value
= readl(phy
->pmu
);
247 writel(reg_value
, phy
->pmu
);
250 static int sun4i_usb_phy_init(struct phy
*_phy
)
252 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
253 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
257 ret
= clk_prepare_enable(phy
->clk
);
261 ret
= reset_control_deassert(phy
->reset
);
263 clk_disable_unprepare(phy
->clk
);
267 if (phy
->pmu
&& data
->cfg
->enable_pmu_unk1
) {
268 val
= readl(phy
->pmu
+ REG_PMU_UNK1
);
269 writel(val
& ~2, phy
->pmu
+ REG_PMU_UNK1
);
272 if (data
->cfg
->type
== sun8i_h3_phy
) {
273 if (phy
->index
== 0) {
274 val
= readl(data
->base
+ REG_PHY_UNK_H3
);
275 writel(val
& ~1, data
->base
+ REG_PHY_UNK_H3
);
278 /* Enable USB 45 Ohm resistor calibration */
280 sun4i_usb_phy_write(phy
, PHY_RES45_CAL_EN
, 0x01, 1);
282 /* Adjust PHY's magnitude and rate */
283 sun4i_usb_phy_write(phy
, PHY_TX_AMPLITUDE_TUNE
, 0x14, 5);
285 /* Disconnect threshold adjustment */
286 sun4i_usb_phy_write(phy
, PHY_DISCON_TH_SEL
,
287 data
->cfg
->disc_thresh
, 2);
290 sun4i_usb_phy_passby(phy
, 1);
292 if (phy
->index
== 0) {
293 data
->phy0_init
= true;
295 /* Enable pull-ups */
296 sun4i_usb_phy0_update_iscr(_phy
, 0, ISCR_DPDM_PULLUP_EN
);
297 sun4i_usb_phy0_update_iscr(_phy
, 0, ISCR_ID_PULLUP_EN
);
299 /* Force ISCR and cable state updates */
302 queue_delayed_work(system_wq
, &data
->detect
, 0);
308 static int sun4i_usb_phy_exit(struct phy
*_phy
)
310 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
311 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
313 if (phy
->index
== 0) {
314 /* Disable pull-ups */
315 sun4i_usb_phy0_update_iscr(_phy
, ISCR_DPDM_PULLUP_EN
, 0);
316 sun4i_usb_phy0_update_iscr(_phy
, ISCR_ID_PULLUP_EN
, 0);
317 data
->phy0_init
= false;
320 sun4i_usb_phy_passby(phy
, 0);
321 reset_control_assert(phy
->reset
);
322 clk_disable_unprepare(phy
->clk
);
327 static int sun4i_usb_phy0_get_id_det(struct sun4i_usb_phy_data
*data
)
329 switch (data
->dr_mode
) {
330 case USB_DR_MODE_OTG
:
331 if (data
->id_det_gpio
)
332 return gpiod_get_value_cansleep(data
->id_det_gpio
);
334 return 1; /* Fallback to peripheral mode */
335 case USB_DR_MODE_HOST
:
337 case USB_DR_MODE_PERIPHERAL
:
343 static int sun4i_usb_phy0_get_vbus_det(struct sun4i_usb_phy_data
*data
)
345 if (data
->vbus_det_gpio
)
346 return gpiod_get_value_cansleep(data
->vbus_det_gpio
);
348 if (data
->vbus_power_supply
) {
349 union power_supply_propval val
;
352 r
= power_supply_get_property(data
->vbus_power_supply
,
353 POWER_SUPPLY_PROP_PRESENT
, &val
);
358 /* Fallback: report vbus as high */
362 static bool sun4i_usb_phy0_have_vbus_det(struct sun4i_usb_phy_data
*data
)
364 return data
->vbus_det_gpio
|| data
->vbus_power_supply
;
367 static bool sun4i_usb_phy0_poll(struct sun4i_usb_phy_data
*data
)
369 if ((data
->id_det_gpio
&& data
->id_det_irq
<= 0) ||
370 (data
->vbus_det_gpio
&& data
->vbus_det_irq
<= 0))
374 * The A31 companion pmic (axp221) does not generate vbus change
375 * interrupts when the board is driving vbus, so we must poll
376 * when using the pmic for vbus-det _and_ we're driving vbus.
378 if (data
->cfg
->type
== sun6i_a31_phy
&&
379 data
->vbus_power_supply
&& data
->phys
[0].regulator_on
)
385 static int sun4i_usb_phy_power_on(struct phy
*_phy
)
387 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
388 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
391 if (!phy
->vbus
|| phy
->regulator_on
)
394 /* For phy0 only turn on Vbus if we don't have an ext. Vbus */
395 if (phy
->index
== 0 && sun4i_usb_phy0_have_vbus_det(data
) &&
397 dev_warn(&_phy
->dev
, "External vbus detected, not enabling our own vbus\n");
401 ret
= regulator_enable(phy
->vbus
);
405 phy
->regulator_on
= true;
407 /* We must report Vbus high within OTG_TIME_A_WAIT_VRISE msec. */
408 if (phy
->index
== 0 && sun4i_usb_phy0_poll(data
))
409 mod_delayed_work(system_wq
, &data
->detect
, DEBOUNCE_TIME
);
414 static int sun4i_usb_phy_power_off(struct phy
*_phy
)
416 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
417 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
419 if (!phy
->vbus
|| !phy
->regulator_on
)
422 regulator_disable(phy
->vbus
);
423 phy
->regulator_on
= false;
426 * phy0 vbus typically slowly discharges, sometimes this causes the
427 * Vbus gpio to not trigger an edge irq on Vbus off, so force a rescan.
429 if (phy
->index
== 0 && !sun4i_usb_phy0_poll(data
))
430 mod_delayed_work(system_wq
, &data
->detect
, POLL_TIME
);
435 static int sun4i_usb_phy_set_mode(struct phy
*_phy
, enum phy_mode mode
)
437 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
438 struct sun4i_usb_phy_data
*data
= to_sun4i_usb_phy_data(phy
);
445 case PHY_MODE_USB_HOST
:
446 new_mode
= USB_DR_MODE_HOST
;
448 case PHY_MODE_USB_DEVICE
:
449 new_mode
= USB_DR_MODE_PERIPHERAL
;
451 case PHY_MODE_USB_OTG
:
452 new_mode
= USB_DR_MODE_OTG
;
458 if (new_mode
!= data
->dr_mode
) {
459 dev_info(&_phy
->dev
, "Changing dr_mode to %d\n", new_mode
);
460 data
->dr_mode
= new_mode
;
463 data
->id_det
= -1; /* Force reprocessing of id */
464 data
->force_session_end
= true;
465 queue_delayed_work(system_wq
, &data
->detect
, 0);
470 void sun4i_usb_phy_set_squelch_detect(struct phy
*_phy
, bool enabled
)
472 struct sun4i_usb_phy
*phy
= phy_get_drvdata(_phy
);
474 sun4i_usb_phy_write(phy
, PHY_SQUELCH_DETECT
, enabled
? 0 : 2, 2);
476 EXPORT_SYMBOL_GPL(sun4i_usb_phy_set_squelch_detect
);
478 static const struct phy_ops sun4i_usb_phy_ops
= {
479 .init
= sun4i_usb_phy_init
,
480 .exit
= sun4i_usb_phy_exit
,
481 .power_on
= sun4i_usb_phy_power_on
,
482 .power_off
= sun4i_usb_phy_power_off
,
483 .set_mode
= sun4i_usb_phy_set_mode
,
484 .owner
= THIS_MODULE
,
487 static void sun4i_usb_phy0_id_vbus_det_scan(struct work_struct
*work
)
489 struct sun4i_usb_phy_data
*data
=
490 container_of(work
, struct sun4i_usb_phy_data
, detect
.work
);
491 struct phy
*phy0
= data
->phys
[0].phy
;
492 bool force_session_end
, id_notify
= false, vbus_notify
= false;
493 int id_det
, vbus_det
;
498 id_det
= sun4i_usb_phy0_get_id_det(data
);
499 vbus_det
= sun4i_usb_phy0_get_vbus_det(data
);
501 mutex_lock(&phy0
->mutex
);
503 if (!data
->phy0_init
) {
504 mutex_unlock(&phy0
->mutex
);
508 force_session_end
= data
->force_session_end
;
509 data
->force_session_end
= false;
511 if (id_det
!= data
->id_det
) {
512 /* id-change, force session end if we've no vbus detection */
513 if (data
->dr_mode
== USB_DR_MODE_OTG
&&
514 !sun4i_usb_phy0_have_vbus_det(data
))
515 force_session_end
= true;
517 /* When entering host mode (id = 0) force end the session now */
518 if (force_session_end
&& id_det
== 0) {
519 sun4i_usb_phy0_set_vbus_detect(phy0
, 0);
521 sun4i_usb_phy0_set_vbus_detect(phy0
, 1);
523 sun4i_usb_phy0_set_id_detect(phy0
, id_det
);
524 data
->id_det
= id_det
;
528 if (vbus_det
!= data
->vbus_det
) {
529 sun4i_usb_phy0_set_vbus_detect(phy0
, vbus_det
);
530 data
->vbus_det
= vbus_det
;
534 mutex_unlock(&phy0
->mutex
);
537 extcon_set_cable_state_(data
->extcon
, EXTCON_USB_HOST
,
539 /* When leaving host mode force end the session here */
540 if (force_session_end
&& id_det
== 1) {
541 mutex_lock(&phy0
->mutex
);
542 sun4i_usb_phy0_set_vbus_detect(phy0
, 0);
544 sun4i_usb_phy0_set_vbus_detect(phy0
, 1);
545 mutex_unlock(&phy0
->mutex
);
550 extcon_set_cable_state_(data
->extcon
, EXTCON_USB
, vbus_det
);
552 if (sun4i_usb_phy0_poll(data
))
553 queue_delayed_work(system_wq
, &data
->detect
, POLL_TIME
);
556 static irqreturn_t
sun4i_usb_phy0_id_vbus_det_irq(int irq
, void *dev_id
)
558 struct sun4i_usb_phy_data
*data
= dev_id
;
560 /* vbus or id changed, let the pins settle and then scan them */
561 mod_delayed_work(system_wq
, &data
->detect
, DEBOUNCE_TIME
);
566 static int sun4i_usb_phy0_vbus_notify(struct notifier_block
*nb
,
567 unsigned long val
, void *v
)
569 struct sun4i_usb_phy_data
*data
=
570 container_of(nb
, struct sun4i_usb_phy_data
, vbus_power_nb
);
571 struct power_supply
*psy
= v
;
573 /* Properties on the vbus_power_supply changed, scan vbus_det */
574 if (val
== PSY_EVENT_PROP_CHANGED
&& psy
== data
->vbus_power_supply
)
575 mod_delayed_work(system_wq
, &data
->detect
, DEBOUNCE_TIME
);
580 static struct phy
*sun4i_usb_phy_xlate(struct device
*dev
,
581 struct of_phandle_args
*args
)
583 struct sun4i_usb_phy_data
*data
= dev_get_drvdata(dev
);
585 if (args
->args
[0] >= data
->cfg
->num_phys
)
586 return ERR_PTR(-ENODEV
);
588 return data
->phys
[args
->args
[0]].phy
;
591 static int sun4i_usb_phy_remove(struct platform_device
*pdev
)
593 struct device
*dev
= &pdev
->dev
;
594 struct sun4i_usb_phy_data
*data
= dev_get_drvdata(dev
);
596 if (data
->vbus_power_nb_registered
)
597 power_supply_unreg_notifier(&data
->vbus_power_nb
);
598 if (data
->id_det_irq
> 0)
599 devm_free_irq(dev
, data
->id_det_irq
, data
);
600 if (data
->vbus_det_irq
> 0)
601 devm_free_irq(dev
, data
->vbus_det_irq
, data
);
603 cancel_delayed_work_sync(&data
->detect
);
608 static const unsigned int sun4i_usb_phy0_cable
[] = {
614 static int sun4i_usb_phy_probe(struct platform_device
*pdev
)
616 struct sun4i_usb_phy_data
*data
;
617 struct device
*dev
= &pdev
->dev
;
618 struct device_node
*np
= dev
->of_node
;
619 struct phy_provider
*phy_provider
;
620 struct resource
*res
;
623 data
= devm_kzalloc(dev
, sizeof(*data
), GFP_KERNEL
);
627 spin_lock_init(&data
->reg_lock
);
628 INIT_DELAYED_WORK(&data
->detect
, sun4i_usb_phy0_id_vbus_det_scan
);
629 dev_set_drvdata(dev
, data
);
630 data
->cfg
= of_device_get_match_data(dev
);
634 res
= platform_get_resource_byname(pdev
, IORESOURCE_MEM
, "phy_ctrl");
635 data
->base
= devm_ioremap_resource(dev
, res
);
636 if (IS_ERR(data
->base
))
637 return PTR_ERR(data
->base
);
639 data
->id_det_gpio
= devm_gpiod_get_optional(dev
, "usb0_id_det",
641 if (IS_ERR(data
->id_det_gpio
))
642 return PTR_ERR(data
->id_det_gpio
);
644 data
->vbus_det_gpio
= devm_gpiod_get_optional(dev
, "usb0_vbus_det",
646 if (IS_ERR(data
->vbus_det_gpio
))
647 return PTR_ERR(data
->vbus_det_gpio
);
649 if (of_find_property(np
, "usb0_vbus_power-supply", NULL
)) {
650 data
->vbus_power_supply
= devm_power_supply_get_by_phandle(dev
,
651 "usb0_vbus_power-supply");
652 if (IS_ERR(data
->vbus_power_supply
))
653 return PTR_ERR(data
->vbus_power_supply
);
655 if (!data
->vbus_power_supply
)
656 return -EPROBE_DEFER
;
659 data
->dr_mode
= of_usb_get_dr_mode_by_phy(np
, 0);
661 data
->extcon
= devm_extcon_dev_allocate(dev
, sun4i_usb_phy0_cable
);
662 if (IS_ERR(data
->extcon
))
663 return PTR_ERR(data
->extcon
);
665 ret
= devm_extcon_dev_register(dev
, data
->extcon
);
667 dev_err(dev
, "failed to register extcon: %d\n", ret
);
671 for (i
= 0; i
< data
->cfg
->num_phys
; i
++) {
672 struct sun4i_usb_phy
*phy
= data
->phys
+ i
;
675 snprintf(name
, sizeof(name
), "usb%d_vbus", i
);
676 phy
->vbus
= devm_regulator_get_optional(dev
, name
);
677 if (IS_ERR(phy
->vbus
)) {
678 if (PTR_ERR(phy
->vbus
) == -EPROBE_DEFER
)
679 return -EPROBE_DEFER
;
683 if (data
->cfg
->dedicated_clocks
)
684 snprintf(name
, sizeof(name
), "usb%d_phy", i
);
686 strlcpy(name
, "usb_phy", sizeof(name
));
688 phy
->clk
= devm_clk_get(dev
, name
);
689 if (IS_ERR(phy
->clk
)) {
690 dev_err(dev
, "failed to get clock %s\n", name
);
691 return PTR_ERR(phy
->clk
);
694 snprintf(name
, sizeof(name
), "usb%d_reset", i
);
695 phy
->reset
= devm_reset_control_get(dev
, name
);
696 if (IS_ERR(phy
->reset
)) {
697 dev_err(dev
, "failed to get reset %s\n", name
);
698 return PTR_ERR(phy
->reset
);
701 if (i
) { /* No pmu for usbc0 */
702 snprintf(name
, sizeof(name
), "pmu%d", i
);
703 res
= platform_get_resource_byname(pdev
,
704 IORESOURCE_MEM
, name
);
705 phy
->pmu
= devm_ioremap_resource(dev
, res
);
706 if (IS_ERR(phy
->pmu
))
707 return PTR_ERR(phy
->pmu
);
710 phy
->phy
= devm_phy_create(dev
, NULL
, &sun4i_usb_phy_ops
);
711 if (IS_ERR(phy
->phy
)) {
712 dev_err(dev
, "failed to create PHY %d\n", i
);
713 return PTR_ERR(phy
->phy
);
717 phy_set_drvdata(phy
->phy
, &data
->phys
[i
]);
720 data
->id_det_irq
= gpiod_to_irq(data
->id_det_gpio
);
721 if (data
->id_det_irq
> 0) {
722 ret
= devm_request_irq(dev
, data
->id_det_irq
,
723 sun4i_usb_phy0_id_vbus_det_irq
,
724 IRQF_TRIGGER_RISING
| IRQF_TRIGGER_FALLING
,
725 "usb0-id-det", data
);
727 dev_err(dev
, "Err requesting id-det-irq: %d\n", ret
);
732 data
->vbus_det_irq
= gpiod_to_irq(data
->vbus_det_gpio
);
733 if (data
->vbus_det_irq
> 0) {
734 ret
= devm_request_irq(dev
, data
->vbus_det_irq
,
735 sun4i_usb_phy0_id_vbus_det_irq
,
736 IRQF_TRIGGER_RISING
| IRQF_TRIGGER_FALLING
,
737 "usb0-vbus-det", data
);
739 dev_err(dev
, "Err requesting vbus-det-irq: %d\n", ret
);
740 data
->vbus_det_irq
= -1;
741 sun4i_usb_phy_remove(pdev
); /* Stop detect work */
746 if (data
->vbus_power_supply
) {
747 data
->vbus_power_nb
.notifier_call
= sun4i_usb_phy0_vbus_notify
;
748 data
->vbus_power_nb
.priority
= 0;
749 ret
= power_supply_reg_notifier(&data
->vbus_power_nb
);
751 sun4i_usb_phy_remove(pdev
); /* Stop detect work */
754 data
->vbus_power_nb_registered
= true;
757 phy_provider
= devm_of_phy_provider_register(dev
, sun4i_usb_phy_xlate
);
758 if (IS_ERR(phy_provider
)) {
759 sun4i_usb_phy_remove(pdev
); /* Stop detect work */
760 return PTR_ERR(phy_provider
);
766 static const struct sun4i_usb_phy_cfg sun4i_a10_cfg
= {
768 .type
= sun4i_a10_phy
,
770 .phyctl_offset
= REG_PHYCTL_A10
,
771 .dedicated_clocks
= false,
772 .enable_pmu_unk1
= false,
775 static const struct sun4i_usb_phy_cfg sun5i_a13_cfg
= {
777 .type
= sun4i_a10_phy
,
779 .phyctl_offset
= REG_PHYCTL_A10
,
780 .dedicated_clocks
= false,
781 .enable_pmu_unk1
= false,
784 static const struct sun4i_usb_phy_cfg sun6i_a31_cfg
= {
786 .type
= sun6i_a31_phy
,
788 .phyctl_offset
= REG_PHYCTL_A10
,
789 .dedicated_clocks
= true,
790 .enable_pmu_unk1
= false,
793 static const struct sun4i_usb_phy_cfg sun7i_a20_cfg
= {
795 .type
= sun4i_a10_phy
,
797 .phyctl_offset
= REG_PHYCTL_A10
,
798 .dedicated_clocks
= false,
799 .enable_pmu_unk1
= false,
802 static const struct sun4i_usb_phy_cfg sun8i_a23_cfg
= {
804 .type
= sun4i_a10_phy
,
806 .phyctl_offset
= REG_PHYCTL_A10
,
807 .dedicated_clocks
= true,
808 .enable_pmu_unk1
= false,
811 static const struct sun4i_usb_phy_cfg sun8i_a33_cfg
= {
813 .type
= sun8i_a33_phy
,
815 .phyctl_offset
= REG_PHYCTL_A33
,
816 .dedicated_clocks
= true,
817 .enable_pmu_unk1
= false,
820 static const struct sun4i_usb_phy_cfg sun8i_h3_cfg
= {
822 .type
= sun8i_h3_phy
,
824 .dedicated_clocks
= true,
825 .enable_pmu_unk1
= true,
828 static const struct sun4i_usb_phy_cfg sun50i_a64_cfg
= {
830 .type
= sun50i_a64_phy
,
832 .phyctl_offset
= REG_PHYCTL_A33
,
833 .dedicated_clocks
= true,
834 .enable_pmu_unk1
= true,
837 static const struct of_device_id sun4i_usb_phy_of_match
[] = {
838 { .compatible
= "allwinner,sun4i-a10-usb-phy", .data
= &sun4i_a10_cfg
},
839 { .compatible
= "allwinner,sun5i-a13-usb-phy", .data
= &sun5i_a13_cfg
},
840 { .compatible
= "allwinner,sun6i-a31-usb-phy", .data
= &sun6i_a31_cfg
},
841 { .compatible
= "allwinner,sun7i-a20-usb-phy", .data
= &sun7i_a20_cfg
},
842 { .compatible
= "allwinner,sun8i-a23-usb-phy", .data
= &sun8i_a23_cfg
},
843 { .compatible
= "allwinner,sun8i-a33-usb-phy", .data
= &sun8i_a33_cfg
},
844 { .compatible
= "allwinner,sun8i-h3-usb-phy", .data
= &sun8i_h3_cfg
},
845 { .compatible
= "allwinner,sun50i-a64-usb-phy",
846 .data
= &sun50i_a64_cfg
},
849 MODULE_DEVICE_TABLE(of
, sun4i_usb_phy_of_match
);
851 static struct platform_driver sun4i_usb_phy_driver
= {
852 .probe
= sun4i_usb_phy_probe
,
853 .remove
= sun4i_usb_phy_remove
,
855 .of_match_table
= sun4i_usb_phy_of_match
,
856 .name
= "sun4i-usb-phy",
859 module_platform_driver(sun4i_usb_phy_driver
);
861 MODULE_DESCRIPTION("Allwinner sun4i USB phy driver");
862 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
863 MODULE_LICENSE("GPL v2");