From 43e3f38892a6a521ff5901cdb97cf6985101badd Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 9 Jul 2013 18:34:21 +0530 Subject: extcon: palmas: remove unused member from palams_usb structure Remove unused member vbus_enable and set_vbus_work from palmas_usb as these members are not used in drivers. Signed-off-by: Laxman Dewangan Acked-by: Graeme Gregory Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham --- include/linux/mfd/palmas.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux/mfd/palmas.h') diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 1a8dd7afe084..03c22ca55446 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -371,16 +371,11 @@ struct palmas_usb { struct extcon_dev edev; - /* used to set vbus, in atomic path */ - struct work_struct set_vbus_work; - int id_otg_irq; int id_irq; int vbus_otg_irq; int vbus_irq; - int vbus_enable; - enum palmas_usb_state linkstat; }; -- cgit v1.2.3 From 7281e05aabee7484624d448da208932690ed62b3 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 10 Jul 2013 14:59:06 +0530 Subject: extcon: palmas: Option to disable ID/VBUS detection based on platform Based on system design, platform needs to detect the VBUS or ID or both. Provide option to select this through platform data to disable part of cable detection through palmas-usb. Signed-off-by: Laxman Dewangan Acked-by: Graeme Gregory Signed-off-by: Chanwoo Choi Signed-off-by: Myungjoo Ham --- .../devicetree/bindings/extcon/extcon-palmas.txt | 2 + drivers/extcon/extcon-palmas.c | 87 +++++++++++++--------- include/linux/mfd/palmas.h | 3 + 3 files changed, 57 insertions(+), 35 deletions(-) (limited to 'include/linux/mfd/palmas.h') diff --git a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt index f110e75fd0a1..7dab6a8f4a0e 100644 --- a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt +++ b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt @@ -6,6 +6,8 @@ Required Properties: Optional Properties: - ti,wakeup : To enable the wakeup comparator in probe + - ti,enable-id-detection: Perform ID detection. + - ti,enable-vbus-detection: Perform VBUS detection. palmas-usb { compatible = "ti,twl6035-usb", "ti,palmas-usb"; diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index d0ce0f16de70..89fdd05c5fd6 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -122,11 +122,14 @@ static void palmas_enable_irq(struct palmas_usb *palmas_usb) PALMAS_USB_ID_INT_EN_HI_SET_ID_GND | PALMAS_USB_ID_INT_EN_HI_SET_ID_FLOAT); - palmas_vbus_irq_handler(palmas_usb->vbus_irq, palmas_usb); + if (palmas_usb->enable_vbus_detection) + palmas_vbus_irq_handler(palmas_usb->vbus_irq, palmas_usb); /* cold plug for host mode needs this delay */ - msleep(30); - palmas_id_irq_handler(palmas_usb->id_irq, palmas_usb); + if (palmas_usb->enable_id_detection) { + msleep(30); + palmas_id_irq_handler(palmas_usb->id_irq, palmas_usb); + } } static int palmas_usb_probe(struct platform_device *pdev) @@ -137,21 +140,25 @@ static int palmas_usb_probe(struct platform_device *pdev) struct palmas_usb *palmas_usb; int status; - if (node && !pdata) { - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - - if (!pdata) - return -ENOMEM; - - pdata->wakeup = of_property_read_bool(node, "ti,wakeup"); - } else if (!pdata) { - return -EINVAL; - } - palmas_usb = devm_kzalloc(&pdev->dev, sizeof(*palmas_usb), GFP_KERNEL); if (!palmas_usb) return -ENOMEM; + if (node && !pdata) { + palmas_usb->wakeup = of_property_read_bool(node, "ti,wakeup"); + palmas_usb->enable_id_detection = of_property_read_bool(node, + "ti,enable-id-detection"); + palmas_usb->enable_vbus_detection = of_property_read_bool(node, + "ti,enable-vbus-detection"); + } else { + palmas_usb->wakeup = true; + palmas_usb->enable_id_detection = true; + palmas_usb->enable_vbus_detection = true; + + if (pdata) + palmas_usb->wakeup = pdata->wakeup; + } + palmas->usb = palmas_usb; palmas_usb->palmas = palmas; @@ -166,7 +173,7 @@ static int palmas_usb_probe(struct platform_device *pdev) palmas_usb->vbus_irq = regmap_irq_get_virq(palmas->irq_data, PALMAS_VBUS_IRQ); - palmas_usb_wakeup(palmas, pdata->wakeup); + palmas_usb_wakeup(palmas, palmas_usb->wakeup); platform_set_drvdata(pdev, palmas_usb); @@ -179,26 +186,32 @@ static int palmas_usb_probe(struct platform_device *pdev) return status; } - status = devm_request_threaded_irq(palmas_usb->dev, palmas_usb->id_irq, - NULL, palmas_id_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | - IRQF_ONESHOT | IRQF_EARLY_RESUME, - "palmas_usb_id", palmas_usb); - if (status < 0) { - dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", + if (palmas_usb->enable_id_detection) { + status = devm_request_threaded_irq(palmas_usb->dev, + palmas_usb->id_irq, + NULL, palmas_id_irq_handler, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | + IRQF_ONESHOT | IRQF_EARLY_RESUME, + "palmas_usb_id", palmas_usb); + if (status < 0) { + dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", palmas_usb->id_irq, status); - goto fail_extcon; + goto fail_extcon; + } } - status = devm_request_threaded_irq(palmas_usb->dev, - palmas_usb->vbus_irq, NULL, palmas_vbus_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | - IRQF_ONESHOT | IRQF_EARLY_RESUME, - "palmas_usb_vbus", palmas_usb); - if (status < 0) { - dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", + if (palmas_usb->enable_vbus_detection) { + status = devm_request_threaded_irq(palmas_usb->dev, + palmas_usb->vbus_irq, NULL, + palmas_vbus_irq_handler, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | + IRQF_ONESHOT | IRQF_EARLY_RESUME, + "palmas_usb_vbus", palmas_usb); + if (status < 0) { + dev_err(&pdev->dev, "can't get IRQ %d, err %d\n", palmas_usb->vbus_irq, status); - goto fail_extcon; + goto fail_extcon; + } } palmas_enable_irq(palmas_usb); @@ -226,8 +239,10 @@ static int palmas_usb_suspend(struct device *dev) struct palmas_usb *palmas_usb = dev_get_drvdata(dev); if (device_may_wakeup(dev)) { - enable_irq_wake(palmas_usb->vbus_irq); - enable_irq_wake(palmas_usb->id_irq); + if (palmas_usb->enable_vbus_detection) + enable_irq_wake(palmas_usb->vbus_irq); + if (palmas_usb->enable_id_detection) + enable_irq_wake(palmas_usb->id_irq); } return 0; } @@ -237,8 +252,10 @@ static int palmas_usb_resume(struct device *dev) struct palmas_usb *palmas_usb = dev_get_drvdata(dev); if (device_may_wakeup(dev)) { - disable_irq_wake(palmas_usb->vbus_irq); - disable_irq_wake(palmas_usb->id_irq); + if (palmas_usb->enable_vbus_detection) + disable_irq_wake(palmas_usb->vbus_irq); + if (palmas_usb->enable_id_detection) + disable_irq_wake(palmas_usb->id_irq); } return 0; }; diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 03c22ca55446..cfc678ceb570 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -377,6 +377,9 @@ struct palmas_usb { int vbus_irq; enum palmas_usb_state linkstat; + int wakeup; + bool enable_vbus_detection; + bool enable_id_detection; }; #define comparator_to_palmas(x) container_of((x), struct palmas_usb, comparator) -- cgit v1.2.3