summaryrefslogtreecommitdiff
path: root/drivers/extcon
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-axp288.c13
-rw-r--r--drivers/extcon/extcon-max14577.c2
-rw-r--r--drivers/extcon/extcon-max77693.c2
-rw-r--r--drivers/extcon/extcon-max77843.c2
-rw-r--r--drivers/extcon/extcon-max8997.c2
-rw-r--r--drivers/extcon/extcon-palmas.c20
-rw-r--r--drivers/extcon/extcon-ptn5150.c226
-rw-r--r--drivers/extcon/extcon-usb-gpio.c2
8 files changed, 118 insertions, 151 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 525345367260..fdb31954cf2b 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -491,18 +491,7 @@ static struct platform_driver axp288_extcon_driver = {
.pm = &axp288_extcon_pm_ops,
},
};
-
-static int __init axp288_extcon_init(void)
-{
- return platform_driver_register(&axp288_extcon_driver);
-}
-module_init(axp288_extcon_init);
-
-static void __exit axp288_extcon_exit(void)
-{
- platform_driver_unregister(&axp288_extcon_driver);
-}
-module_exit(axp288_extcon_exit);
+module_platform_driver(axp288_extcon_driver);
MODULE_AUTHOR("Ramakrishna Pallala <ramakrishna.pallala@intel.com>");
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index cc47d626095c..ace523924e58 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -713,7 +713,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
max14577_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
- return -ENOMEM;
+ return PTR_ERR(info->edev);
}
ret = devm_extcon_dev_register(&pdev->dev, info->edev);
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 32fc5a66ffa9..4a410fd2ea9a 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1157,7 +1157,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
max77693_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
- return -ENOMEM;
+ return PTR_ERR(info->edev);
}
ret = devm_extcon_dev_register(&pdev->dev, info->edev);
diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
index e6b50ca83008..8e6e97ec65a8 100644
--- a/drivers/extcon/extcon-max77843.c
+++ b/drivers/extcon/extcon-max77843.c
@@ -845,7 +845,7 @@ static int max77843_muic_probe(struct platform_device *pdev)
max77843_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(&pdev->dev, "Failed to allocate memory for extcon\n");
- ret = -ENODEV;
+ ret = PTR_ERR(info->edev);
goto err_muic_irq;
}
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 172e116ac1ce..337b0eea4e62 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -674,7 +674,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
info->edev = devm_extcon_dev_allocate(&pdev->dev, max8997_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
- ret = -ENOMEM;
+ ret = PTR_ERR(info->edev);
goto err_irq;
}
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index cea58d0cb457..a2852bcc5f0d 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -2,7 +2,7 @@
/*
* Palmas USB transceiver driver
*
- * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com
* Author: Graeme Gregory <gg@slimlogic.co.uk>
* Author: Kishon Vijay Abraham I <kishon@ti.com>
* Based on twl6030_usb.c
@@ -205,21 +205,15 @@ static int palmas_usb_probe(struct platform_device *pdev)
palmas_usb->id_gpiod = devm_gpiod_get_optional(&pdev->dev, "id",
GPIOD_IN);
- if (PTR_ERR(palmas_usb->id_gpiod) == -EPROBE_DEFER) {
- return -EPROBE_DEFER;
- } else if (IS_ERR(palmas_usb->id_gpiod)) {
- dev_err(&pdev->dev, "failed to get id gpio\n");
- return PTR_ERR(palmas_usb->id_gpiod);
- }
+ if (IS_ERR(palmas_usb->id_gpiod))
+ return dev_err_probe(&pdev->dev, PTR_ERR(palmas_usb->id_gpiod),
+ "failed to get id gpio\n");
palmas_usb->vbus_gpiod = devm_gpiod_get_optional(&pdev->dev, "vbus",
GPIOD_IN);
- if (PTR_ERR(palmas_usb->vbus_gpiod) == -EPROBE_DEFER) {
- return -EPROBE_DEFER;
- } else if (IS_ERR(palmas_usb->vbus_gpiod)) {
- dev_err(&pdev->dev, "failed to get vbus gpio\n");
- return PTR_ERR(palmas_usb->vbus_gpiod);
- }
+ if (IS_ERR(palmas_usb->vbus_gpiod))
+ return dev_err_probe(&pdev->dev, PTR_ERR(palmas_usb->vbus_gpiod),
+ "failed to get id gpio\n");
if (palmas_usb->enable_id_detection && palmas_usb->id_gpiod) {
palmas_usb->enable_id_detection = false;
diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
index d1c997599390..5b9a3cf8df26 100644
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -5,7 +5,9 @@
// Based on extcon-sm5502.c driver
// Copyright (c) 2018-2019 by Vijai Kumar K
// Author: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>
+// Copyright (c) 2020 Krzysztof Kozlowski <krzk@kernel.org>
+#include <linux/bitfield.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
@@ -17,46 +19,28 @@
#include <linux/gpio/consumer.h>
/* PTN5150 registers */
-enum ptn5150_reg {
- PTN5150_REG_DEVICE_ID = 0x01,
- PTN5150_REG_CONTROL,
- PTN5150_REG_INT_STATUS,
- PTN5150_REG_CC_STATUS,
- PTN5150_REG_CON_DET = 0x09,
- PTN5150_REG_VCONN_STATUS,
- PTN5150_REG_RESET,
- PTN5150_REG_INT_MASK = 0x18,
- PTN5150_REG_INT_REG_STATUS,
- PTN5150_REG_END,
-};
+#define PTN5150_REG_DEVICE_ID 0x01
+#define PTN5150_REG_CONTROL 0x02
+#define PTN5150_REG_INT_STATUS 0x03
+#define PTN5150_REG_CC_STATUS 0x04
+#define PTN5150_REG_CON_DET 0x09
+#define PTN5150_REG_VCONN_STATUS 0x0a
+#define PTN5150_REG_RESET 0x0b
+#define PTN5150_REG_INT_MASK 0x18
+#define PTN5150_REG_INT_REG_STATUS 0x19
+#define PTN5150_REG_END PTN5150_REG_INT_REG_STATUS
#define PTN5150_DFP_ATTACHED 0x1
#define PTN5150_UFP_ATTACHED 0x2
/* Define PTN5150 MASK/SHIFT constant */
-#define PTN5150_REG_DEVICE_ID_VENDOR_SHIFT 0
-#define PTN5150_REG_DEVICE_ID_VENDOR_MASK \
- (0x3 << PTN5150_REG_DEVICE_ID_VENDOR_SHIFT)
-
-#define PTN5150_REG_DEVICE_ID_VERSION_SHIFT 3
-#define PTN5150_REG_DEVICE_ID_VERSION_MASK \
- (0x1f << PTN5150_REG_DEVICE_ID_VERSION_SHIFT)
-
-#define PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT 2
-#define PTN5150_REG_CC_PORT_ATTACHMENT_MASK \
- (0x7 << PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT)
+#define PTN5150_REG_DEVICE_ID_VERSION GENMASK(7, 3)
+#define PTN5150_REG_DEVICE_ID_VENDOR GENMASK(2, 0)
-#define PTN5150_REG_CC_VBUS_DETECTION_SHIFT 7
-#define PTN5150_REG_CC_VBUS_DETECTION_MASK \
- (0x1 << PTN5150_REG_CC_VBUS_DETECTION_SHIFT)
-
-#define PTN5150_REG_INT_CABLE_ATTACH_SHIFT 0
-#define PTN5150_REG_INT_CABLE_ATTACH_MASK \
- (0x1 << PTN5150_REG_INT_CABLE_ATTACH_SHIFT)
-
-#define PTN5150_REG_INT_CABLE_DETACH_SHIFT 1
-#define PTN5150_REG_INT_CABLE_DETACH_MASK \
- (0x1 << PTN5150_REG_CC_CABLE_DETACH_SHIFT)
+#define PTN5150_REG_CC_PORT_ATTACHMENT GENMASK(4, 2)
+#define PTN5150_REG_CC_VBUS_DETECTION BIT(7)
+#define PTN5150_REG_INT_CABLE_ATTACH_MASK BIT(0)
+#define PTN5150_REG_INT_CABLE_DETACH_MASK BIT(1)
struct ptn5150_info {
struct device *dev;
@@ -83,12 +67,45 @@ static const struct regmap_config ptn5150_regmap_config = {
.max_register = PTN5150_REG_END,
};
+static void ptn5150_check_state(struct ptn5150_info *info)
+{
+ unsigned int port_status, reg_data, vbus;
+ int ret;
+
+ ret = regmap_read(info->regmap, PTN5150_REG_CC_STATUS, &reg_data);
+ if (ret) {
+ dev_err(info->dev, "failed to read CC STATUS %d\n", ret);
+ return;
+ }
+
+ port_status = FIELD_GET(PTN5150_REG_CC_PORT_ATTACHMENT, reg_data);
+
+ switch (port_status) {
+ case PTN5150_DFP_ATTACHED:
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, false);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
+ extcon_set_state_sync(info->edev, EXTCON_USB, true);
+ break;
+ case PTN5150_UFP_ATTACHED:
+ extcon_set_state_sync(info->edev, EXTCON_USB, false);
+ vbus = FIELD_GET(PTN5150_REG_CC_VBUS_DETECTION, reg_data);
+ if (vbus)
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
+ else
+ gpiod_set_value_cansleep(info->vbus_gpiod, 1);
+
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, true);
+ break;
+ default:
+ break;
+ }
+}
+
static void ptn5150_irq_work(struct work_struct *work)
{
struct ptn5150_info *info = container_of(work,
struct ptn5150_info, irq_work);
int ret = 0;
- unsigned int reg_data;
unsigned int int_status;
if (!info->edev)
@@ -96,13 +113,6 @@ static void ptn5150_irq_work(struct work_struct *work)
mutex_lock(&info->mutex);
- ret = regmap_read(info->regmap, PTN5150_REG_CC_STATUS, &reg_data);
- if (ret) {
- dev_err(info->dev, "failed to read CC STATUS %d\n", ret);
- mutex_unlock(&info->mutex);
- return;
- }
-
/* Clear interrupt. Read would clear the register */
ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &int_status);
if (ret) {
@@ -116,47 +126,13 @@ static void ptn5150_irq_work(struct work_struct *work)
cable_attach = int_status & PTN5150_REG_INT_CABLE_ATTACH_MASK;
if (cable_attach) {
- unsigned int port_status;
- unsigned int vbus;
-
- port_status = ((reg_data &
- PTN5150_REG_CC_PORT_ATTACHMENT_MASK) >>
- PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT);
-
- switch (port_status) {
- case PTN5150_DFP_ATTACHED:
- extcon_set_state_sync(info->edev,
- EXTCON_USB_HOST, false);
- gpiod_set_value(info->vbus_gpiod, 0);
- extcon_set_state_sync(info->edev, EXTCON_USB,
- true);
- break;
- case PTN5150_UFP_ATTACHED:
- extcon_set_state_sync(info->edev, EXTCON_USB,
- false);
- vbus = ((reg_data &
- PTN5150_REG_CC_VBUS_DETECTION_MASK) >>
- PTN5150_REG_CC_VBUS_DETECTION_SHIFT);
- if (vbus)
- gpiod_set_value(info->vbus_gpiod, 0);
- else
- gpiod_set_value(info->vbus_gpiod, 1);
-
- extcon_set_state_sync(info->edev,
- EXTCON_USB_HOST, true);
- break;
- default:
- dev_err(info->dev,
- "Unknown Port status : %x\n",
- port_status);
- break;
- }
+ ptn5150_check_state(info);
} else {
extcon_set_state_sync(info->edev,
EXTCON_USB_HOST, false);
extcon_set_state_sync(info->edev,
EXTCON_USB, false);
- gpiod_set_value(info->vbus_gpiod, 0);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
}
}
@@ -194,13 +170,10 @@ static int ptn5150_init_dev_type(struct ptn5150_info *info)
return -EINVAL;
}
- vendor_id = ((reg_data & PTN5150_REG_DEVICE_ID_VENDOR_MASK) >>
- PTN5150_REG_DEVICE_ID_VENDOR_SHIFT);
- version_id = ((reg_data & PTN5150_REG_DEVICE_ID_VERSION_MASK) >>
- PTN5150_REG_DEVICE_ID_VERSION_SHIFT);
-
- dev_info(info->dev, "Device type: version: 0x%x, vendor: 0x%x\n",
- version_id, vendor_id);
+ vendor_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VENDOR, reg_data);
+ version_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VERSION, reg_data);
+ dev_dbg(info->dev, "Device type: version: 0x%x, vendor: 0x%x\n",
+ version_id, vendor_id);
/* Clear any existing interrupts */
ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &reg_data);
@@ -221,8 +194,7 @@ static int ptn5150_init_dev_type(struct ptn5150_info *info)
return 0;
}
-static int ptn5150_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int ptn5150_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct device_node *np = i2c->dev.of_node;
@@ -239,20 +211,15 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
info->dev = &i2c->dev;
info->i2c = i2c;
- info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
- if (IS_ERR(info->int_gpiod)) {
- dev_err(dev, "failed to get INT GPIO\n");
- return PTR_ERR(info->int_gpiod);
- }
- info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_IN);
+ info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_OUT_LOW);
if (IS_ERR(info->vbus_gpiod)) {
- dev_err(dev, "failed to get VBUS GPIO\n");
- return PTR_ERR(info->vbus_gpiod);
- }
- ret = gpiod_direction_output(info->vbus_gpiod, 0);
- if (ret) {
- dev_err(dev, "failed to set VBUS GPIO direction\n");
- return -EINVAL;
+ ret = PTR_ERR(info->vbus_gpiod);
+ if (ret == -ENOENT) {
+ dev_info(dev, "No VBUS GPIO, ignoring VBUS control\n");
+ info->vbus_gpiod = NULL;
+ } else {
+ return dev_err_probe(dev, ret, "failed to get VBUS GPIO\n");
+ }
}
mutex_init(&info->mutex);
@@ -261,28 +228,34 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
info->regmap = devm_regmap_init_i2c(i2c, &ptn5150_regmap_config);
if (IS_ERR(info->regmap)) {
- ret = PTR_ERR(info->regmap);
- dev_err(info->dev, "failed to allocate register map: %d\n",
- ret);
- return ret;
+ return dev_err_probe(info->dev, PTR_ERR(info->regmap),
+ "failed to allocate register map\n");
}
- if (info->int_gpiod) {
+ if (i2c->irq > 0) {
+ info->irq = i2c->irq;
+ } else {
+ info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
+ if (IS_ERR(info->int_gpiod)) {
+ return dev_err_probe(dev, PTR_ERR(info->int_gpiod),
+ "failed to get INT GPIO\n");
+ }
+
info->irq = gpiod_to_irq(info->int_gpiod);
if (info->irq < 0) {
dev_err(dev, "failed to get INTB IRQ\n");
return info->irq;
}
+ }
- ret = devm_request_threaded_irq(dev, info->irq, NULL,
- ptn5150_irq_handler,
- IRQF_TRIGGER_FALLING |
- IRQF_ONESHOT,
- i2c->name, info);
- if (ret < 0) {
- dev_err(dev, "failed to request handler for INTB IRQ\n");
- return ret;
- }
+ ret = devm_request_threaded_irq(dev, info->irq, NULL,
+ ptn5150_irq_handler,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ i2c->name, info);
+ if (ret < 0) {
+ dev_err(dev, "failed to request handler for INTB IRQ\n");
+ return ret;
}
/* Allocate extcon device */
@@ -299,11 +272,26 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
return ret;
}
+ extcon_set_property_capability(info->edev, EXTCON_USB,
+ EXTCON_PROP_USB_VBUS);
+ extcon_set_property_capability(info->edev, EXTCON_USB_HOST,
+ EXTCON_PROP_USB_VBUS);
+ extcon_set_property_capability(info->edev, EXTCON_USB_HOST,
+ EXTCON_PROP_USB_TYPEC_POLARITY);
+
/* Initialize PTN5150 device and print vendor id and version id */
ret = ptn5150_init_dev_type(info);
if (ret)
return -EINVAL;
+ /*
+ * Update current extcon state if for example OTG connection was there
+ * before the probe
+ */
+ mutex_lock(&info->mutex);
+ ptn5150_check_state(info);
+ mutex_unlock(&info->mutex);
+
return 0;
}
@@ -324,16 +312,12 @@ static struct i2c_driver ptn5150_i2c_driver = {
.name = "ptn5150",
.of_match_table = ptn5150_dt_match,
},
- .probe = ptn5150_i2c_probe,
+ .probe_new = ptn5150_i2c_probe,
.id_table = ptn5150_i2c_id,
};
-
-static int __init ptn5150_i2c_init(void)
-{
- return i2c_add_driver(&ptn5150_i2c_driver);
-}
-subsys_initcall(ptn5150_i2c_init);
+module_i2c_driver(ptn5150_i2c_driver);
MODULE_DESCRIPTION("NXP PTN5150 CC logic Extcon driver");
MODULE_AUTHOR("Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>");
+MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 98b5afa5b615..f06be6d4e2a9 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -2,7 +2,7 @@
/**
* drivers/extcon/extcon-usb-gpio.c - USB GPIO extcon driver
*
- * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com
* Author: Roger Quadros <rogerq@ti.com>
*/
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-17 16:16:31 +0300