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Commit cfa30622 authored by Denis Osterland's avatar Denis Osterland Committed by Alexandre Belloni
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rtc: isl1208: set ev-evienb bit from device tree 



Add support to disable event in pull-up.

Signed-off-by: default avatarDenis Osterland <Denis.Osterland@diehl.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 9ece7cd8

drivers/rtc/rtc-isl1208.c

+18 −3
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ 
#define ISL1208_REG_INT_IM     (1<<7)   /* interrupt/alarm mode */

#define ISL1219_REG_EV  0x09

#define ISL1219_REG_EV_EVEN    (1<<4)   /* event detection enable */

#define ISL1219_REG_EV_EVIENB  (1<<7)   /* event in pull-up disable */

#define ISL1208_REG_ATR 0x0a

#define ISL1208_REG_DTR 0x0b
@@ -777,8 +778,22 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) 
			 "please set clock.\n");



	if (id->driver_data == TYPE_ISL1219) {

		rc = i2c_smbus_write_byte_data(client, ISL1219_REG_EV,

					       ISL1219_REG_EV_EVEN);

		struct device_node *np = client->dev.of_node;

		u32 evienb;



		rc = i2c_smbus_read_byte_data(client, ISL1219_REG_EV);

		if (rc < 0) {

			dev_err(&client->dev, "failed to read EV reg\n");

			return rc;

		}

		rc |= ISL1219_REG_EV_EVEN;

		if (!of_property_read_u32(np, "isil,ev-evienb", &evienb)) {

			if (evienb)

				rc |= ISL1219_REG_EV_EVIENB;

			else

				rc &= ~ISL1219_REG_EV_EVIENB;

		}

		rc = i2c_smbus_write_byte_data(client, ISL1219_REG_EV, rc);

		if (rc < 0) {

			dev_err(&client->dev, "could not enable tamper detection\n");

			return rc;
@@ -786,7 +801,7 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) 
		rc = rtc_add_group(rtc, &isl1219_rtc_sysfs_files);

		if (rc)

			return rc;

		evdet_irq = of_irq_get_byname(client->dev.of_node, "evdet");

		evdet_irq = of_irq_get_byname(np, "evdet");

	}



	rc = sysfs_create_group(&client->dev.kobj, &isl1208_rtc_sysfs_files);