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Commit cde0fe2a authored by Alexandre Belloni's avatar Alexandre Belloni
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rtc: rv8803: broaden workaround



The previous workaround may still fail as there are actually 4 retries to
be done to ensure the communication succeed. Also, some I2C adapter drivers
may return -EIO instead of -ENXIO.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent d6faca40
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+3 −3
Original line number Diff line number Diff line
@@ -68,7 +68,7 @@ static irqreturn_t rv8803_handle_irq(int irq, void *dev_id)
	do {
		flags = i2c_smbus_read_byte_data(client, RV8803_FLAG);
		try++;
	} while ((flags == -ENXIO) && (try < 3));
	} while (((flags == -ENXIO) || (flags == -EIO)) && (try < 4));
	if (flags <= 0) {
		mutex_unlock(&rv8803->flags_lock);
		return IRQ_NONE;
@@ -452,7 +452,7 @@ static int rv8803_probe(struct i2c_client *client,
	do {
		flags = i2c_smbus_read_byte_data(client, RV8803_FLAG);
		try++;
	} while ((flags == -ENXIO) && (try < 3));
	} while (((flags == -ENXIO) || (flags == -EIO)) && (try < 4));

	if (flags < 0)
		return flags;
@@ -493,7 +493,7 @@ static int rv8803_probe(struct i2c_client *client,
		err = i2c_smbus_write_byte_data(rv8803->client, RV8803_EXT,
						RV8803_EXT_WADA);
		try++;
	} while ((err == -ENXIO) && (try < 3));
	} while (((err == -ENXIO) || (flags == -EIO)) && (try < 4));
	if (err)
		return err;