input: Add power button support for mc13783
This adds support for the power-on buttons of MC13783 PMIC. Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Philippe Rétornaz
Samuel Ortiz
parent
5ab9059d7f
commit
30fc7ac3f6
@ -100,6 +100,16 @@ config INPUT_MAX8925_ONKEY
|
||||
To compile this driver as a module, choose M here: the module
|
||||
will be called max8925_onkey.
|
||||
|
||||
config INPUT_MC13783_PWRBUTTON
|
||||
tristate "MC13783 ON buttons"
|
||||
depends on MFD_MC13783
|
||||
help
|
||||
Support the ON buttons of MC13783 PMIC as an input device
|
||||
reporting power button status.
|
||||
|
||||
To compile this driver as a module, choose M here: the module
|
||||
will be called mc13783-pwrbutton.
|
||||
|
||||
config INPUT_MMA8450
|
||||
tristate "MMA8450 - Freescale's 3-Axis, 8/12-bit Digital Accelerometer"
|
||||
depends on I2C
|
||||
|
||||
@ -28,6 +28,7 @@ obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
|
||||
obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
|
||||
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
|
||||
obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
|
||||
obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
|
||||
obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
|
||||
obj-$(CONFIG_INPUT_MPU3050) += mpu3050.o
|
||||
obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
|
||||
|
||||
282
drivers/input/misc/mc13783-pwrbutton.c
Normal file
282
drivers/input/misc/mc13783-pwrbutton.c
Normal file
@ -0,0 +1,282 @@
|
||||
/**
|
||||
* Copyright (C) 2011 Philippe Rétornaz
|
||||
*
|
||||
* Based on twl4030-pwrbutton driver by:
|
||||
* Peter De Schrijver <peter.de-schrijver@nokia.com>
|
||||
* Felipe Balbi <felipe.balbi@nokia.com>
|
||||
*
|
||||
* 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
|
||||
* archive for more details.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/mfd/mc13783.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
struct mc13783_pwrb {
|
||||
struct input_dev *pwr;
|
||||
struct mc13xxx *mc13783;
|
||||
#define MC13783_PWRB_B1_POL_INVERT (1 << 0)
|
||||
#define MC13783_PWRB_B2_POL_INVERT (1 << 1)
|
||||
#define MC13783_PWRB_B3_POL_INVERT (1 << 2)
|
||||
int flags;
|
||||
unsigned short keymap[3];
|
||||
};
|
||||
|
||||
#define MC13783_REG_INTERRUPT_SENSE_1 5
|
||||
#define MC13783_IRQSENSE1_ONOFD1S (1 << 3)
|
||||
#define MC13783_IRQSENSE1_ONOFD2S (1 << 4)
|
||||
#define MC13783_IRQSENSE1_ONOFD3S (1 << 5)
|
||||
|
||||
#define MC13783_REG_POWER_CONTROL_2 15
|
||||
#define MC13783_POWER_CONTROL_2_ON1BDBNC 4
|
||||
#define MC13783_POWER_CONTROL_2_ON2BDBNC 6
|
||||
#define MC13783_POWER_CONTROL_2_ON3BDBNC 8
|
||||
#define MC13783_POWER_CONTROL_2_ON1BRSTEN (1 << 1)
|
||||
#define MC13783_POWER_CONTROL_2_ON2BRSTEN (1 << 2)
|
||||
#define MC13783_POWER_CONTROL_2_ON3BRSTEN (1 << 3)
|
||||
|
||||
static irqreturn_t button_irq(int irq, void *_priv)
|
||||
{
|
||||
struct mc13783_pwrb *priv = _priv;
|
||||
int val;
|
||||
|
||||
mc13xxx_irq_ack(priv->mc13783, irq);
|
||||
mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
|
||||
|
||||
switch (irq) {
|
||||
case MC13783_IRQ_ONOFD1:
|
||||
val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
|
||||
if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
|
||||
val ^= 1;
|
||||
input_report_key(priv->pwr, priv->keymap[0], val);
|
||||
break;
|
||||
|
||||
case MC13783_IRQ_ONOFD2:
|
||||
val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
|
||||
if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
|
||||
val ^= 1;
|
||||
input_report_key(priv->pwr, priv->keymap[1], val);
|
||||
break;
|
||||
|
||||
case MC13783_IRQ_ONOFD3:
|
||||
val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
|
||||
if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
|
||||
val ^= 1;
|
||||
input_report_key(priv->pwr, priv->keymap[2], val);
|
||||
break;
|
||||
}
|
||||
|
||||
input_sync(priv->pwr);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int __devinit mc13783_pwrbutton_probe(struct platform_device *pdev)
|
||||
{
|
||||
const struct mc13xxx_buttons_platform_data *pdata;
|
||||
struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
|
||||
struct input_dev *pwr;
|
||||
struct mc13783_pwrb *priv;
|
||||
int err = 0;
|
||||
int reg = 0;
|
||||
|
||||
pdata = dev_get_platdata(&pdev->dev);
|
||||
if (!pdata) {
|
||||
dev_err(&pdev->dev, "missing platform data\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
pwr = input_allocate_device();
|
||||
if (!pwr) {
|
||||
dev_dbg(&pdev->dev, "Can't allocate power button\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv) {
|
||||
err = -ENOMEM;
|
||||
dev_dbg(&pdev->dev, "Can't allocate power button\n");
|
||||
goto free_input_dev;
|
||||
}
|
||||
|
||||
reg |= (pdata->b1on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON1BDBNC;
|
||||
reg |= (pdata->b2on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON2BDBNC;
|
||||
reg |= (pdata->b3on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON3BDBNC;
|
||||
|
||||
priv->pwr = pwr;
|
||||
priv->mc13783 = mc13783;
|
||||
|
||||
mc13xxx_lock(mc13783);
|
||||
|
||||
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) {
|
||||
priv->keymap[0] = pdata->b1on_key;
|
||||
if (pdata->b1on_key != KEY_RESERVED)
|
||||
__set_bit(pdata->b1on_key, pwr->keybit);
|
||||
|
||||
if (pdata->b1on_flags & MC13783_BUTTON_POL_INVERT)
|
||||
priv->flags |= MC13783_PWRB_B1_POL_INVERT;
|
||||
|
||||
if (pdata->b1on_flags & MC13783_BUTTON_RESET_EN)
|
||||
reg |= MC13783_POWER_CONTROL_2_ON1BRSTEN;
|
||||
|
||||
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD1,
|
||||
button_irq, "b1on", priv);
|
||||
if (err) {
|
||||
dev_dbg(&pdev->dev, "Can't request irq\n");
|
||||
goto free_priv;
|
||||
}
|
||||
}
|
||||
|
||||
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) {
|
||||
priv->keymap[1] = pdata->b2on_key;
|
||||
if (pdata->b2on_key != KEY_RESERVED)
|
||||
__set_bit(pdata->b2on_key, pwr->keybit);
|
||||
|
||||
if (pdata->b2on_flags & MC13783_BUTTON_POL_INVERT)
|
||||
priv->flags |= MC13783_PWRB_B2_POL_INVERT;
|
||||
|
||||
if (pdata->b2on_flags & MC13783_BUTTON_RESET_EN)
|
||||
reg |= MC13783_POWER_CONTROL_2_ON2BRSTEN;
|
||||
|
||||
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD2,
|
||||
button_irq, "b2on", priv);
|
||||
if (err) {
|
||||
dev_dbg(&pdev->dev, "Can't request irq\n");
|
||||
goto free_irq_b1;
|
||||
}
|
||||
}
|
||||
|
||||
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) {
|
||||
priv->keymap[2] = pdata->b3on_key;
|
||||
if (pdata->b3on_key != KEY_RESERVED)
|
||||
__set_bit(pdata->b3on_key, pwr->keybit);
|
||||
|
||||
if (pdata->b3on_flags & MC13783_BUTTON_POL_INVERT)
|
||||
priv->flags |= MC13783_PWRB_B3_POL_INVERT;
|
||||
|
||||
if (pdata->b3on_flags & MC13783_BUTTON_RESET_EN)
|
||||
reg |= MC13783_POWER_CONTROL_2_ON3BRSTEN;
|
||||
|
||||
err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD3,
|
||||
button_irq, "b3on", priv);
|
||||
if (err) {
|
||||
dev_dbg(&pdev->dev, "Can't request irq: %d\n", err);
|
||||
goto free_irq_b2;
|
||||
}
|
||||
}
|
||||
|
||||
mc13xxx_reg_rmw(mc13783, MC13783_REG_POWER_CONTROL_2, 0x3FE, reg);
|
||||
|
||||
mc13xxx_unlock(mc13783);
|
||||
|
||||
pwr->name = "mc13783_pwrbutton";
|
||||
pwr->phys = "mc13783_pwrbutton/input0";
|
||||
pwr->dev.parent = &pdev->dev;
|
||||
|
||||
pwr->keycode = priv->keymap;
|
||||
pwr->keycodemax = ARRAY_SIZE(priv->keymap);
|
||||
pwr->keycodesize = sizeof(priv->keymap[0]);
|
||||
__set_bit(EV_KEY, pwr->evbit);
|
||||
|
||||
err = input_register_device(pwr);
|
||||
if (err) {
|
||||
dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
|
||||
goto free_irq;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, priv);
|
||||
|
||||
return 0;
|
||||
|
||||
free_irq:
|
||||
mc13xxx_lock(mc13783);
|
||||
|
||||
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD3, priv);
|
||||
|
||||
free_irq_b2:
|
||||
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD2, priv);
|
||||
|
||||
free_irq_b1:
|
||||
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD1, priv);
|
||||
|
||||
free_priv:
|
||||
mc13xxx_unlock(mc13783);
|
||||
kfree(priv);
|
||||
|
||||
free_input_dev:
|
||||
input_free_device(pwr);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int __devexit mc13783_pwrbutton_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct mc13783_pwrb *priv = platform_get_drvdata(pdev);
|
||||
const struct mc13xxx_buttons_platform_data *pdata;
|
||||
|
||||
pdata = dev_get_platdata(&pdev->dev);
|
||||
|
||||
mc13xxx_lock(priv->mc13783);
|
||||
|
||||
if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD3, priv);
|
||||
if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD2, priv);
|
||||
if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
|
||||
mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD1, priv);
|
||||
|
||||
mc13xxx_unlock(priv->mc13783);
|
||||
|
||||
input_unregister_device(priv->pwr);
|
||||
kfree(priv);
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct platform_driver mc13783_pwrbutton_driver = {
|
||||
.probe = mc13783_pwrbutton_probe,
|
||||
.remove = __devexit_p(mc13783_pwrbutton_remove),
|
||||
.driver = {
|
||||
.name = "mc13783-pwrbutton",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init mc13783_pwrbutton_init(void)
|
||||
{
|
||||
return platform_driver_register(&mc13783_pwrbutton_driver);
|
||||
}
|
||||
module_init(mc13783_pwrbutton_init);
|
||||
|
||||
static void __exit mc13783_pwrbutton_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&mc13783_pwrbutton_driver);
|
||||
}
|
||||
module_exit(mc13783_pwrbutton_exit);
|
||||
|
||||
MODULE_ALIAS("platform:mc13783-pwrbutton");
|
||||
MODULE_DESCRIPTION("MC13783 Power Button");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_AUTHOR("Philippe Retornaz");
|
||||
@ -703,6 +703,11 @@ static int mc13xxx_probe(struct spi_device *spi)
|
||||
enum mc13xxx_id id;
|
||||
int ret;
|
||||
|
||||
if (!pdata) {
|
||||
dev_err(&spi->dev, "invalid platform data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
|
||||
if (!mc13xxx)
|
||||
return -ENOMEM;
|
||||
@ -763,6 +768,10 @@ err_revision:
|
||||
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
|
||||
pdata->leds, sizeof(*pdata->leds));
|
||||
|
||||
if (pdata->buttons)
|
||||
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
|
||||
pdata->buttons, sizeof(*pdata->buttons));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -140,6 +140,22 @@ struct mc13xxx_leds_platform_data {
|
||||
char tc3_period;
|
||||
};
|
||||
|
||||
struct mc13xxx_buttons_platform_data {
|
||||
#define MC13783_BUTTON_DBNC_0MS 0
|
||||
#define MC13783_BUTTON_DBNC_30MS 1
|
||||
#define MC13783_BUTTON_DBNC_150MS 2
|
||||
#define MC13783_BUTTON_DBNC_750MS 3
|
||||
#define MC13783_BUTTON_ENABLE (1 << 2)
|
||||
#define MC13783_BUTTON_POL_INVERT (1 << 3)
|
||||
#define MC13783_BUTTON_RESET_EN (1 << 4)
|
||||
int b1on_flags;
|
||||
unsigned short b1on_key;
|
||||
int b2on_flags;
|
||||
unsigned short b2on_key;
|
||||
int b3on_flags;
|
||||
unsigned short b3on_key;
|
||||
};
|
||||
|
||||
struct mc13xxx_platform_data {
|
||||
#define MC13XXX_USE_TOUCHSCREEN (1 << 0)
|
||||
#define MC13XXX_USE_CODEC (1 << 1)
|
||||
@ -149,6 +165,7 @@ struct mc13xxx_platform_data {
|
||||
|
||||
struct mc13xxx_regulator_platform_data regulators;
|
||||
struct mc13xxx_leds_platform_data *leds;
|
||||
struct mc13xxx_buttons_platform_data *buttons;
|
||||
};
|
||||
|
||||
#define MC13XXX_ADC_MODE_TS 1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user