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-rw-r--r--drivers/usb/host/isp1760-hcd.c24
-rw-r--r--drivers/usb/host/isp1760-hcd.h2
-rw-r--r--drivers/usb/host/isp1760-if.c39
3 files changed, 19 insertions, 46 deletions
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 395649f357aa..e4a94242328e 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -11,6 +11,7 @@
* (c) 2011 Arvid Brodin <arvid.brodin@enea.com>
*
*/
+#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
@@ -24,7 +25,6 @@
#include <linux/timer.h>
#include <asm/unaligned.h>
#include <asm/cacheflush.h>
-#include <linux/gpio.h>
#include "isp1760-hcd.h"
@@ -57,7 +57,7 @@ struct isp1760_hcd {
unsigned long next_statechange;
unsigned int devflags;
- int rst_gpio;
+ struct gpio_desc *rst_gpio;
};
static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd)
@@ -444,15 +444,10 @@ static int isp1760_hc_setup(struct usb_hcd *hcd)
u32 scratch, hwmode;
/* low-level chip reset */
- if (gpio_is_valid(priv->rst_gpio)) {
- unsigned int rst_lvl;
-
- rst_lvl = (priv->devflags &
- ISP1760_FLAG_RESET_ACTIVE_HIGH) ? 1 : 0;
-
- gpio_set_value(priv->rst_gpio, rst_lvl);
+ if (priv->rst_gpio) {
+ gpiod_set_value_cansleep(priv->rst_gpio, 1);
mdelay(50);
- gpio_set_value(priv->rst_gpio, !rst_lvl);
+ gpiod_set_value_cansleep(priv->rst_gpio, 0);
}
/* Setup HW Mode Control: This assumes a level active-low interrupt */
@@ -2215,7 +2210,6 @@ void deinit_kmem_cache(void)
struct usb_hcd *isp1760_register(phys_addr_t res_start, resource_size_t res_len,
int irq, unsigned long irqflags,
- int rst_gpio,
struct device *dev, const char *busname,
unsigned int devflags)
{
@@ -2235,7 +2229,13 @@ struct usb_hcd *isp1760_register(phys_addr_t res_start, resource_size_t res_len,
priv = hcd_to_priv(hcd);
priv->devflags = devflags;
- priv->rst_gpio = rst_gpio;
+
+ priv->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH);
+ if (IS_ERR(priv->rst_gpio)) {
+ ret = PTR_ERR(priv->rst_gpio);
+ goto err_put;
+ }
+
init_memory(priv);
hcd->regs = ioremap(res_start, res_len);
if (!hcd->regs) {
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
index 33dc79ccaa6b..fda0f2d54e3d 100644
--- a/drivers/usb/host/isp1760-hcd.h
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -4,7 +4,6 @@
/* exports for if */
struct usb_hcd *isp1760_register(phys_addr_t res_start, resource_size_t res_len,
int irq, unsigned long irqflags,
- int rst_gpio,
struct device *dev, const char *busname,
unsigned int devflags);
int init_kmem_once(void);
@@ -127,7 +126,6 @@ typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh,
#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */
#define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */
#define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */
-#define ISP1760_FLAG_RESET_ACTIVE_HIGH 0x80000000 /* RESET GPIO active high */
/* chip memory management */
struct memory_chunk {
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index 09254a43bc01..7e8e7f60ee57 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -24,7 +24,6 @@
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
#endif
#ifdef CONFIG_PCI
@@ -34,7 +33,6 @@
#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
struct isp1760 {
struct usb_hcd *hcd;
- int rst_gpio;
};
static int of_isp1760_probe(struct platform_device *dev)
@@ -47,7 +45,6 @@ static int of_isp1760_probe(struct platform_device *dev)
resource_size_t res_len;
int ret;
unsigned int devflags = 0;
- enum of_gpio_flags gpio_flags;
u32 bus_width = 0;
drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
@@ -94,36 +91,17 @@ static int of_isp1760_probe(struct platform_device *dev)
if (of_get_property(dp, "dreq-polarity", NULL) != NULL)
devflags |= ISP1760_FLAG_DREQ_POL_HIGH;
- drvdata->rst_gpio = of_get_gpio_flags(dp, 0, &gpio_flags);
- if (gpio_is_valid(drvdata->rst_gpio)) {
- ret = gpio_request(drvdata->rst_gpio, dev_name(&dev->dev));
- if (!ret) {
- if (!(gpio_flags & OF_GPIO_ACTIVE_LOW)) {
- devflags |= ISP1760_FLAG_RESET_ACTIVE_HIGH;
- gpio_direction_output(drvdata->rst_gpio, 0);
- } else {
- gpio_direction_output(drvdata->rst_gpio, 1);
- }
- } else {
- drvdata->rst_gpio = ret;
- }
- }
-
drvdata->hcd = isp1760_register(memory.start, res_len, virq,
- IRQF_SHARED, drvdata->rst_gpio,
- &dev->dev, dev_name(&dev->dev),
- devflags);
+ IRQF_SHARED, &dev->dev,
+ dev_name(&dev->dev), devflags);
if (IS_ERR(drvdata->hcd)) {
ret = PTR_ERR(drvdata->hcd);
- goto free_gpio;
+ goto release_reg;
}
platform_set_drvdata(dev, drvdata);
return ret;
-free_gpio:
- if (gpio_is_valid(drvdata->rst_gpio))
- gpio_free(drvdata->rst_gpio);
release_reg:
release_mem_region(memory.start, res_len);
free_data:
@@ -140,9 +118,6 @@ static int of_isp1760_remove(struct platform_device *dev)
release_mem_region(drvdata->hcd->rsrc_start, drvdata->hcd->rsrc_len);
usb_put_hcd(drvdata->hcd);
- if (gpio_is_valid(drvdata->rst_gpio))
- gpio_free(drvdata->rst_gpio);
-
kfree(drvdata);
return 0;
}
@@ -279,8 +254,8 @@ static int isp1761_pci_probe(struct pci_dev *dev,
dev->dev.dma_mask = NULL;
hcd = isp1760_register(pci_mem_phy0, memlength, dev->irq,
- IRQF_SHARED, -ENOENT, &dev->dev, dev_name(&dev->dev),
- devflags);
+ IRQF_SHARED, &dev->dev, dev_name(&dev->dev),
+ devflags);
if (IS_ERR(hcd)) {
ret_status = -ENODEV;
goto cleanup3;
@@ -392,8 +367,8 @@ static int isp1760_plat_probe(struct platform_device *pdev)
}
hcd = isp1760_register(mem_res->start, mem_size, irq_res->start,
- irqflags, -ENOENT,
- &pdev->dev, dev_name(&pdev->dev), devflags);
+ irqflags, &pdev->dev, dev_name(&pdev->dev),
+ devflags);
platform_set_drvdata(pdev, hcd);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 02:37:22 +0000