From 1e2ac5195c19b440b0b095262e11b54c093916ee Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 5 Mar 2009 19:27:11 +0000 Subject: [PATCH] input: twl4030-pwrbutton: avoid merge conflicts sync up with the version going upstream. Signed-off-by: Felipe Balbi Signed-off-by: Tony Lindgren --- drivers/input/misc/Kconfig | 6 ++ drivers/input/misc/twl4030-pwrbutton.c | 87 +++++++++++++------------- 2 files changed, 49 insertions(+), 44 deletions(-) diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 9667b500cdc..6fa9e3847c3 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -196,6 +196,12 @@ config INPUT_CM109 config INPUT_TWL4030_PWRBUTTON tristate "TWL4030 Power button Driver" depends on TWL4030_CORE + help + Say Y here if you want to enable power key reporting via the + TWL4030 family of chips. + + To compile this driver as a module, choose M here. The module will + be called twl4030_pwrbutton. config INPUT_UINPUT tristate "User level driver support" diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c index b0a9c9fda74..71508306684 100644 --- a/drivers/input/misc/twl4030-pwrbutton.c +++ b/drivers/input/misc/twl4030-pwrbutton.c @@ -1,11 +1,10 @@ /** - * drivers/i2c/chips/twl4030-pwrbutton.c + * twl4030-pwrbutton.c - TWL4030 Power Button Input Driver * - * Driver for sending triton2 power button event to input-layer - * - * Copyright (C) 2008 Nokia Corporation + * Copyright (C) 2008-2009 Nokia Corporation * * Written by Peter De Schrijver + * Several fixes by Felipe Balbi * * This file is subject to the terms and conditions of the GNU General * Public License. See the file "COPYING" in the main directory of this @@ -34,18 +33,18 @@ #define STS_HW_CONDITIONS 0xf -static struct input_dev *powerbutton_dev; -static struct device *dbg_dev; - -static irqreturn_t powerbutton_irq(int irq, void *dev_id) +static irqreturn_t powerbutton_irq(int irq, void *_pwr) { + struct input_dev *pwr = _pwr; int err; u8 value; #ifdef CONFIG_LOCKDEP /* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which - * we don't want and can't tolerate. Although it might be - * friendlier not to borrow this thread context... + * we don't want and can't tolerate since this is a threaded + * IRQ and can sleep due to the i2c reads it has to issue. + * Although it might be friendlier not to borrow this thread + * context... */ local_irq_enable(); #endif @@ -53,11 +52,11 @@ static irqreturn_t powerbutton_irq(int irq, void *dev_id) err = twl4030_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &value, STS_HW_CONDITIONS); if (!err) { - input_report_key(powerbutton_dev, KEY_POWER, - value & PWR_PWRON_IRQ); + input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ); + input_sync(pwr); } else { - dev_err(dbg_dev, "twl4030: i2c error %d while reading TWL4030" - " PM_MASTER STS_HW_CONDITIONS register\n", err); + dev_err(pwr->dev.parent, "twl4030: i2c error %d while reading" + " TWL4030 PM_MASTER STS_HW_CONDITIONS register\n", err); } return IRQ_HANDLED; @@ -65,66 +64,64 @@ static irqreturn_t powerbutton_irq(int irq, void *dev_id) static int __devinit twl4030_pwrbutton_probe(struct platform_device *pdev) { - int err = 0; + struct input_dev *pwr; int irq = platform_get_irq(pdev, 0); + int err; - dbg_dev = &pdev->dev; + pwr = input_allocate_device(); + if (!pwr) { + dev_dbg(&pdev->dev, "Can't allocate power button\n"); + err = -ENOMEM; + goto out; + } - /* PWRBTN == PWRON */ err = request_irq(irq, powerbutton_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, - "twl4030-pwrbutton", NULL); + "twl4030_pwrbutton", pwr); if (err < 0) { - dev_dbg(&pdev->dev, "Can't get IRQ for power button: %d\n", err); - goto out; - } - - powerbutton_dev = input_allocate_device(); - if (!powerbutton_dev) { - dev_dbg(&pdev->dev, "Can't allocate power button\n"); - err = -ENOMEM; - goto free_irq_and_out; + dev_dbg(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err); + goto free_input_dev; } - powerbutton_dev->evbit[0] = BIT_MASK(EV_KEY); - powerbutton_dev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER); - powerbutton_dev->name = "triton2-pwrbutton"; + pwr->evbit[0] = BIT_MASK(EV_KEY); + pwr->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER); + pwr->name = "twl4030_pwrbutton"; + pwr->phys = "twl4030_pwrbutton/input0"; + pwr->dev.parent = &pdev->dev; + platform_set_drvdata(pdev, pwr); - err = input_register_device(powerbutton_dev); + err = input_register_device(pwr); if (err) { dev_dbg(&pdev->dev, "Can't register power button: %d\n", err); - goto free_input_dev; + goto free_irq_and_out; } - dev_info(&pdev->dev, "triton2 power button driver initialized\n"); - return 0; - -free_input_dev: - input_free_device(powerbutton_dev); free_irq_and_out: - free_irq(TWL4030_PWRIRQ_PWRBTN, NULL); + free_irq(irq, NULL); +free_input_dev: + input_free_device(pwr); out: return err; } static int __devexit twl4030_pwrbutton_remove(struct platform_device *pdev) { + struct input_dev *pwr = platform_get_drvdata(pdev); int irq = platform_get_irq(pdev, 0); - free_irq(irq, NULL); - input_unregister_device(powerbutton_dev); - input_free_device(powerbutton_dev); + free_irq(irq, pwr); + input_unregister_device(pwr); return 0; } struct platform_driver twl4030_pwrbutton_driver = { .probe = twl4030_pwrbutton_probe, - .remove = twl4030_pwrbutton_remove, + .remove = __devexit_p(twl4030_pwrbutton_remove), .driver = { - .name = "twl4030-pwrbutton", + .name = "twl4030_pwrbutton", .owner = THIS_MODULE, }, }; @@ -141,7 +138,9 @@ static void __exit twl4030_pwrbutton_exit(void) } module_exit(twl4030_pwrbutton_exit); +MODULE_ALIAS("platform:twl4030_pwrbutton"); MODULE_DESCRIPTION("Triton2 Power Button"); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Peter De Schrijver"); +MODULE_AUTHOR("Peter De Schrijver "); +MODULE_AUTHOR("Felipe Balbi "); -- 2.41.0