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-rw-r--r--Documentation/devicetree/bindings/input/pwm-beeper.txt7
-rw-r--r--drivers/input/misc/Kconfig2
-rw-r--r--drivers/input/misc/pwm-beeper.c14
3 files changed, 21 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/input/pwm-beeper.txt b/Documentation/devicetree/bindings/input/pwm-beeper.txt
new file mode 100644
index 000000000000..be332ae4f2d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/pwm-beeper.txt
@@ -0,0 +1,7 @@
+* PWM beeper device tree bindings
+
+Registers a PWM device as beeper.
+
+Required properties:
+- compatible: should be "pwm-beeper"
+- pwms: phandle to the physical PWM device
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index c8353570344c..0f959d744e74 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -441,7 +441,7 @@ config INPUT_PCF8574
config INPUT_PWM_BEEPER
tristate "PWM beeper support"
- depends on HAVE_PWM
+ depends on HAVE_PWM || PWM
help
Say Y here to get support for PWM based beeper devices.
diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index fc84c8a51147..502544c7e0a0 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -75,7 +75,11 @@ static int __devinit pwm_beeper_probe(struct platform_device *pdev)
if (!beeper)
return -ENOMEM;
- beeper->pwm = pwm_request(pwm_id, "pwm beeper");
+ beeper->pwm = pwm_get(&pdev->dev, NULL);
+ if (IS_ERR(beeper->pwm)) {
+ dev_dbg(&pdev->dev, "unable to request PWM, trying legacy API\n");
+ beeper->pwm = pwm_request(pwm_id, "pwm beeper");
+ }
if (IS_ERR(beeper->pwm)) {
error = PTR_ERR(beeper->pwm);
@@ -171,6 +175,13 @@ static SIMPLE_DEV_PM_OPS(pwm_beeper_pm_ops,
#define PWM_BEEPER_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id pwm_beeper_match[] = {
+ { .compatible = "pwm-beeper", },
+ { },
+};
+#endif
+
static struct platform_driver pwm_beeper_driver = {
.probe = pwm_beeper_probe,
.remove = __devexit_p(pwm_beeper_remove),
@@ -178,6 +189,7 @@ static struct platform_driver pwm_beeper_driver = {
.name = "pwm-beeper",
.owner = THIS_MODULE,
.pm = PWM_BEEPER_PM_OPS,
+ .of_match_table = of_match_ptr(pwm_beeper_match),
},
};
module_platform_driver(pwm_beeper_driver);