This patch modifies extcon_get_edev_by_phandle() function, to match extcon device by devicetree node. This modification needed to add field 'node' in extcon_dev structure, and fill it in probe function of each extcon provider driver. This patch adds function of_extcon_get_extcon_dev(), returning extcon device which contains given devicetree node. Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx> --- drivers/extcon/extcon-adc-jack.c | 1 + drivers/extcon/extcon-arizona.c | 1 + drivers/extcon/extcon-class.c | 21 ++++++++++++++++++++- drivers/extcon/extcon-gpio.c | 1 + drivers/extcon/extcon-max14577.c | 2 ++ drivers/extcon/extcon-max77693.c | 1 + drivers/extcon/extcon-max8997.c | 1 + drivers/extcon/extcon-palmas.c | 1 + include/linux/extcon.h | 2 ++ 9 files changed, 30 insertions(+), 1 deletion(-) diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index e23f1c2..d65915e 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -111,6 +111,7 @@ static int adc_jack_probe(struct platform_device *pdev) } data->edev.dev.parent = &pdev->dev; + data->edev.node = pdev->dev.of_node; data->edev.supported_cable = pdata->cable_names; /* Check the length of array and set num_cables */ diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 98a14f6..fc69cca 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -1153,6 +1153,7 @@ static int arizona_extcon_probe(struct platform_device *pdev) info->edev.name = "Headset Jack"; info->edev.dev.parent = arizona->dev; + info->edev.node = pdev->dev.of_node; info->edev.supported_cable = arizona_cable; ret = extcon_dev_register(&info->edev); diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 1b98c4e..b0d9c90 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -377,6 +377,25 @@ out: } EXPORT_SYMBOL_GPL(extcon_get_extcon_dev); +/** + * of_extcon_get_extcon_dev() - Get the extcon device instance from the name + * @np: The node of extcon device + */ +struct extcon_dev *of_extcon_get_extcon_dev(const struct device_node *np) +{ + struct extcon_dev *edev; + + mutex_lock(&extcon_dev_list_lock); + list_for_each_entry(edev, &extcon_dev_list, entry) { + if (edev->node == np) + goto out; + } + edev = NULL; +out: + mutex_unlock(&extcon_dev_list_lock); + return edev; +} + static int _call_per_cable(struct notifier_block *nb, unsigned long val, void *ptr) { @@ -827,7 +846,7 @@ struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index) return ERR_PTR(-ENODEV); } - edev = extcon_get_extcon_dev(node->name); + edev = of_extcon_get_extcon_dev(node); if (!edev) { dev_err(dev, "unable to get extcon device : %s\n", node->name); return ERR_PTR(-ENODEV); diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index 13d5222..fc90b7a 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -100,6 +100,7 @@ static int gpio_extcon_probe(struct platform_device *pdev) extcon_data->edev.name = pdata->name; extcon_data->edev.dev.parent = &pdev->dev; + extcon_data->edev.node = pdev->dev.of_node; extcon_data->gpio = pdata->gpio; extcon_data->gpio_active_low = pdata->gpio_active_low; extcon_data->state_on = pdata->state_on; diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c index 7a947d3..b017a0d 100644 --- a/drivers/extcon/extcon-max14577.c +++ b/drivers/extcon/extcon-max14577.c @@ -676,6 +676,8 @@ static int max14577_muic_probe(struct platform_device *pdev) return -ENOMEM; } info->edev->name = DEV_NAME; + info->edev->dev.parent = &pdev->dev; + info->edev->node = pdev->dev.of_node; info->edev->supported_cable = max14577_extcon_cable; ret = extcon_dev_register(info->edev); if (ret) { diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index 7a014cd..2cd8892 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -1200,6 +1200,7 @@ static int max77693_muic_probe(struct platform_device *pdev) } info->edev->name = DEV_NAME; info->edev->dev.parent = &pdev->dev; + info->edev->node = pdev->dev.of_node; info->edev->supported_cable = max77693_extcon_cable; ret = extcon_dev_register(info->edev); if (ret) { diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index a3df70d..c071588 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -718,6 +718,7 @@ static int max8997_muic_probe(struct platform_device *pdev) } info->edev->name = DEV_NAME; info->edev->dev.parent = &pdev->dev; + info->edev->node = pdev->dev.of_node; info->edev->supported_cable = max8997_extcon_cable; ret = extcon_dev_register(info->edev); if (ret) { diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index 26c0619..153a40e 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -199,6 +199,7 @@ static int palmas_usb_probe(struct platform_device *pdev) palmas_usb->edev.supported_cable = palmas_extcon_cable; palmas_usb->edev.dev.parent = palmas_usb->dev; + palmas_usb->edev.node = pdev->dev.of_node; palmas_usb->edev.mutually_exclusive = mutually_exclusive; status = extcon_dev_register(&palmas_usb->edev); diff --git a/include/linux/extcon.h b/include/linux/extcon.h index ed4a47b..573dd1f 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -77,6 +77,7 @@ struct extcon_cable; /** * struct extcon_dev - An extcon device represents one external connector. * @name: The name of this extcon device. Parent device name is + * @node: Devicetree node of parent device. * used if NULL. * @supported_cable: Array of supported cable names ending with NULL. * If supported_cable is NULL, cable name related APIs @@ -113,6 +114,7 @@ struct extcon_cable; struct extcon_dev { /* Optional user initializing data */ const char *name; + const struct device_node *node; const char **supported_cable; const u32 *mutually_exclusive; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html