ENGR00138213-1 Add da9053 power key to mx53 smd &loco

Add da9053 power key config, add key up event

Signed-off-by: Zhou Jingyu <Jingyu.Zhou@freescale.com>

3 files changed, 34 insertions, 8 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index c44b9eafc556..e407e142ccca 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -390,4 +390,14 @@ config INPUT_PCAP
 	  To compile this driver as a module, choose M here: the
 	  module will be called pcap_keys.
 
+config INPUT_DA9052_ONKEY
+	tristate "Dialog DA9052 Onkey"
+	depends on PMIC_DA9052
+	help
+	  Support the ONKEY of Dialog DA9052 PMICs as an input device
+	  reporting power button status.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called da9052_onkey.
+
 endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 71fe57d8023f..c8231a783221 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -37,4 +37,4 @@ obj-$(CONFIG_INPUT_WINBOND_CIR)		+= winbond-cir.o
 obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
 obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o
 obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
-
+obj-$(CONFIG_INPUT_DA9052_ONKEY)	+= da9052_onkey.o
diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c
index 636b406246eb..dc3bf46420fb 100644
--- a/drivers/input/misc/da9052_onkey.c
+++ b/drivers/input/misc/da9052_onkey.c
@@ -1,6 +1,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/input.h>
+#include <linux/delay.h>
 #include <linux/platform_device.h>
 
 #include <linux/mfd/da9052/da9052.h>
@@ -12,29 +13,43 @@ struct da9052_onkey_data {
 	struct da9052 *da9052;
 	struct da9052_eh_nb eh_data;
 	struct input_dev *input;
+	struct delayed_work polling_work;
 };
 
-static void da9052_onkey_report_event(struct da9052_eh_nb *eh_data,
-				unsigned int event)
+static void da9052_onkey_work_func(struct work_struct *work)
 {
 	struct da9052_onkey_data *da9052_onkey =
-		container_of(eh_data, struct da9052_onkey_data, eh_data);
+		container_of(work, struct da9052_onkey_data, polling_work.work);
 	struct da9052_ssc_msg msg;
 	unsigned int ret;
+	int value;
 
-	/* Read the Evnet Register */
-	msg.addr = DA9052_EVENTB_REG;
 	da9052_lock(da9052_onkey->da9052);
+	msg.addr = DA9052_STATUSA_REG;
 	ret = da9052_onkey->da9052->read(da9052_onkey->da9052, &msg);
 	if (ret) {
 		da9052_unlock(da9052_onkey->da9052);
 		return;
 	}
 	da9052_unlock(da9052_onkey->da9052);
-	msg.data = msg.data & DA9052_EVENTB_ENONKEY;
+	value = (msg.data & DA9052_STATUSA_NONKEY) ? 0 : 1;
 
-	input_report_key(da9052_onkey->input, KEY_POWER, msg.data);
+	input_report_key(da9052_onkey->input, KEY_POWER, value);
 	input_sync(da9052_onkey->input);
+
+	/* if key down, polling for up */
+	if (value)
+		schedule_delayed_work(&da9052_onkey->polling_work, HZ/10);
+}
+
+static void da9052_onkey_report_event(struct da9052_eh_nb *eh_data,
+				unsigned int event)
+{
+	struct da9052_onkey_data *da9052_onkey =
+		container_of(eh_data, struct da9052_onkey_data, eh_data);
+	cancel_delayed_work(&da9052_onkey->polling_work);
+	schedule_delayed_work(&da9052_onkey->polling_work, 0);
+
 }
 
 static int __devinit da9052_onkey_probe(struct platform_device *pdev)
@@ -62,6 +77,7 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev)
 	da9052_onkey->input->name = "da9052-onkey";
 	da9052_onkey->input->phys = "da9052-onkey/input0";
 	da9052_onkey->input->dev.parent = &pdev->dev;
+	INIT_DELAYED_WORK(&da9052_onkey->polling_work, da9052_onkey_work_func);
 
 	/* Set the EH structure */
 	da9052_onkey->eh_data.eve_type = ONKEY_EVE;