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path: root/drivers/extcon/extcon-palmas.c
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Diffstat (limited to 'drivers/extcon/extcon-palmas.c')
-rw-r--r--drivers/extcon/extcon-palmas.c62
1 files changed, 38 insertions, 24 deletions
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 89fdd05c5fd..7417ce84eb2 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include <linux/err.h>
#include <linux/mfd/palmas.h>
#include <linux/of.h>
@@ -56,7 +57,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
if (vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS) {
if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
- extcon_set_cable_state(&palmas_usb->edev, "USB", true);
+ extcon_set_cable_state(palmas_usb->edev, "USB", true);
dev_info(palmas_usb->dev, "USB cable is attached\n");
} else {
dev_dbg(palmas_usb->dev,
@@ -65,7 +66,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
} else if (!(vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS)) {
if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(&palmas_usb->edev, "USB", false);
+ extcon_set_cable_state(palmas_usb->edev, "USB", false);
dev_info(palmas_usb->dev, "USB cable is detached\n");
} else {
dev_dbg(palmas_usb->dev,
@@ -78,31 +79,40 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
{
- unsigned int set;
+ unsigned int set, id_src;
struct palmas_usb *palmas_usb = _palmas_usb;
palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_LATCH_SET, &set);
+ palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
+ PALMAS_USB_ID_INT_SRC, &id_src);
- if (set & PALMAS_USB_ID_INT_SRC_ID_GND) {
+ if ((set & PALMAS_USB_ID_INT_SRC_ID_GND) &&
+ (id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
- extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
+ extcon_set_cable_state(palmas_usb->edev, "USB-HOST", true);
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
- } else if (set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) {
+ } else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
+ (id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", false);
+ extcon_set_cable_state(palmas_usb->edev, "USB-HOST", false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_ID) &&
(!(set & PALMAS_USB_ID_INT_SRC_ID_GND))) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", false);
+ extcon_set_cable_state(palmas_usb->edev, "USB-HOST", false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
+ } else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
+ (id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
+ palmas_usb->linkstat = PALMAS_USB_STATE_ID;
+ extcon_set_cable_state(palmas_usb->edev, "USB-HOST", true);
+ dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
}
return IRQ_HANDLED;
@@ -135,7 +145,7 @@ static void palmas_enable_irq(struct palmas_usb *palmas_usb)
static int palmas_usb_probe(struct platform_device *pdev)
{
struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
- struct palmas_usb_platform_data *pdata = pdev->dev.platform_data;
+ struct palmas_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct device_node *node = pdev->dev.of_node;
struct palmas_usb *palmas_usb;
int status;
@@ -177,12 +187,20 @@ static int palmas_usb_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, palmas_usb);
- palmas_usb->edev.supported_cable = palmas_extcon_cable;
- palmas_usb->edev.mutually_exclusive = mutually_exclusive;
+ palmas_usb->edev = devm_extcon_dev_allocate(&pdev->dev,
+ palmas_extcon_cable);
+ if (IS_ERR(palmas_usb->edev)) {
+ dev_err(&pdev->dev, "failed to allocate extcon device\n");
+ return -ENOMEM;
+ }
+ palmas_usb->edev->name = kstrdup(node->name, GFP_KERNEL);
+ palmas_usb->edev->dev.parent = palmas_usb->dev;
+ palmas_usb->edev->mutually_exclusive = mutually_exclusive;
- status = extcon_dev_register(&palmas_usb->edev, palmas_usb->dev);
+ status = devm_extcon_dev_register(&pdev->dev, palmas_usb->edev);
if (status) {
dev_err(&pdev->dev, "failed to register extcon device\n");
+ kfree(palmas_usb->edev->name);
return status;
}
@@ -196,7 +214,8 @@ static int palmas_usb_probe(struct platform_device *pdev)
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
palmas_usb->id_irq, status);
- goto fail_extcon;
+ kfree(palmas_usb->edev->name);
+ return status;
}
}
@@ -210,25 +229,21 @@ static int palmas_usb_probe(struct platform_device *pdev)
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
palmas_usb->vbus_irq, status);
- goto fail_extcon;
+ kfree(palmas_usb->edev->name);
+ return status;
}
}
palmas_enable_irq(palmas_usb);
device_set_wakeup_capable(&pdev->dev, true);
return 0;
-
-fail_extcon:
- extcon_dev_unregister(&palmas_usb->edev);
-
- return status;
}
static int palmas_usb_remove(struct platform_device *pdev)
{
struct palmas_usb *palmas_usb = platform_get_drvdata(pdev);
- extcon_dev_unregister(&palmas_usb->edev);
+ kfree(palmas_usb->edev->name);
return 0;
}
@@ -261,14 +276,13 @@ static int palmas_usb_resume(struct device *dev)
};
#endif
-static const struct dev_pm_ops palmas_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(palmas_usb_suspend,
- palmas_usb_resume)
-};
+static SIMPLE_DEV_PM_OPS(palmas_pm_ops, palmas_usb_suspend, palmas_usb_resume);
static struct of_device_id of_palmas_match_tbl[] = {
{ .compatible = "ti,palmas-usb", },
+ { .compatible = "ti,palmas-usb-vid", },
{ .compatible = "ti,twl6035-usb", },
+ { .compatible = "ti,twl6035-usb-vid", },
{ /* end */ }
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 06:03:02 +0000