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Staging: emxx_udc: Switch to the gpio descriptor interface 

Convert VBUS GPIO to use GPIO descriptors from <linux/gpio/consumer.h>
and stop using the old GPIO API.

Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nishad Kamdar 2018-12-27 22:51:29 +05:30 committed by Greg Kroah-Hartman
parent e94e6d1454
commit 48101806c5
2 changed files with 18 additions and 15 deletions
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31
drivers/staging/emxx_udc/emxx_udc.c
View File

@ -27,7 +27,7 @@
#include <linux/usb/gadget.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include "emxx_udc.h"
@ -2220,7 +2220,7 @@ static inline void _nbu2ss_check_vbus(struct nbu2ss_udc *udc)
mdelay(VBUS_CHATTERING_MDELAY); /* wait (ms) */
/* VBUS ON Check*/
reg_dt = gpio_get_value(VBUS_VALUE);
reg_dt = gpiod_get_value(vbus_gpio);
if (reg_dt == 0) {
udc->linux_suspended = 0;
@ -2247,7 +2247,7 @@ static inline void _nbu2ss_check_vbus(struct nbu2ss_udc *udc)
}
} else {
mdelay(5); /* wait (5ms) */
reg_dt = gpio_get_value(VBUS_VALUE);
reg_dt = gpiod_get_value(vbus_gpio);
if (reg_dt == 0)
return;
@ -2311,7 +2311,7 @@ static inline void _nbu2ss_int_usb_suspend(struct nbu2ss_udc *udc)
u32 reg_dt;
if (udc->usb_suspended == 0) {
reg_dt = gpio_get_value(VBUS_VALUE);
reg_dt = gpiod_get_value(vbus_gpio);
if (reg_dt == 0)
return;
@ -2351,7 +2351,7 @@ static irqreturn_t _nbu2ss_udc_irq(int irq, void *_udc)
struct nbu2ss_udc *udc = (struct nbu2ss_udc *)_udc;
struct fc_regs __iomem *preg = udc->p_regs;
if (gpio_get_value(VBUS_VALUE) == 0) {
if (gpiod_get_value(vbus_gpio) == 0) {
_nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
_nbu2ss_writel(&preg->USB_INT_ENA, 0);
return IRQ_HANDLED;
@ -2360,7 +2360,7 @@ static irqreturn_t _nbu2ss_udc_irq(int irq, void *_udc)
spin_lock(&udc->lock);
for (;;) {
if (gpio_get_value(VBUS_VALUE) == 0) {
if (gpiod_get_value(vbus_gpio) == 0) {
_nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
_nbu2ss_writel(&preg->USB_INT_ENA, 0);
status = 0;
@ -2750,7 +2750,7 @@ static int nbu2ss_ep_fifo_status(struct usb_ep *_ep)
preg = udc->p_regs;
data = gpio_get_value(VBUS_VALUE);
data = gpiod_get_value(vbus_gpio);
if (data == 0)
return -EINVAL;
@ -2790,7 +2790,7 @@ static void nbu2ss_ep_fifo_flush(struct usb_ep *_ep)
return;
}
data = gpio_get_value(VBUS_VALUE);
data = gpiod_get_value(vbus_gpio);
if (data == 0)
return;
@ -2832,7 +2832,7 @@ static int nbu2ss_gad_get_frame(struct usb_gadget *pgadget)
}
udc = container_of(pgadget, struct nbu2ss_udc, gadget);
data = gpio_get_value(VBUS_VALUE);
data = gpiod_get_value(vbus_gpio);
if (data == 0)
return -EINVAL;
@ -2854,7 +2854,7 @@ static int nbu2ss_gad_wakeup(struct usb_gadget *pgadget)
udc = container_of(pgadget, struct nbu2ss_udc, gadget);
data = gpio_get_value(VBUS_VALUE);
data = gpiod_get_value(vbus_gpio);
if (data == 0) {
dev_warn(&pgadget->dev, "VBUS LEVEL = %d\n", data);
return -EINVAL;
@ -3119,12 +3119,13 @@ static int nbu2ss_drv_probe(struct platform_device *pdev)
}
/* VBUS Interrupt */
irq_set_irq_type(INT_VBUS, IRQ_TYPE_EDGE_BOTH);
status = request_irq(INT_VBUS,
vbus_irq = gpiod_to_irq(vbus_gpio);
irq_set_irq_type(vbus_irq, IRQ_TYPE_EDGE_BOTH);
status = request_irq(vbus_irq,
_nbu2ss_vbus_irq, IRQF_SHARED, driver_name, udc);
if (status != 0) {
dev_err(udc->dev, "request_irq(INT_VBUS) failed\n");
dev_err(udc->dev, "request_irq(vbus_irq) failed\n");
return status;
}
@ -3160,7 +3161,7 @@ static int nbu2ss_drv_remove(struct platform_device *pdev)
}
/* Interrupt Handler - Release */
free_irq(INT_VBUS, udc);
free_irq(vbus_irq, udc);
return 0;
}
@ -3201,7 +3202,7 @@ static int nbu2ss_drv_resume(struct platform_device *pdev)
if (!udc)
return 0;
data = gpio_get_value(VBUS_VALUE);
data = gpiod_get_value(vbus_gpio);
if (data) {
udc->vbus_active = 1;
udc->devstate = USB_STATE_POWERED;

2
drivers/staging/emxx_udc/emxx_udc.h
View File

@ -30,6 +30,8 @@
/* below hacked up for staging integration */
#define GPIO_VBUS 0 /* GPIO_P153 on KZM9D */
#define INT_VBUS 0 /* IRQ for GPIO_P153 */
struct gpio_desc *vbus_gpio;
int vbus_irq;
/*------------ Board dependence(Wait) */