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@@ -1,5 +1,5 @@
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/*
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- * rtc-ds13307.c - RTC driver for the DS1307 and DS13307 I2C chips.
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+ * rtc-ds13307.c - RTC driver for the DS1307 and DS1337 I2C chips.
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*
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* Copyright (C) 2018 Helmut Pozimski
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*
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@@ -38,7 +38,7 @@ static struct i2c_driver ds13307_driver;
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/* Reads a specified number of bytes via i2c, returns 0 on success */
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static int ds13307_read_bytes(struct i2c_client *client,
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- unsigned char *addr, u8 *byte, int length) {
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+ u8 *addr, u8 *bytes, int length) {
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int r;
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struct i2c_msg msgs[] = {
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{
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@@ -50,7 +50,7 @@ static int ds13307_read_bytes(struct i2c_client *client,
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.addr = client->addr,
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.flags = I2C_M_RD,
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.len = length,
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- .buf = byte
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+ .buf = bytes
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}
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};
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r = i2c_transfer(client->adapter, msgs, 2);
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@@ -78,10 +78,8 @@ static int ds13307_write_single_byte(struct i2c_client *client, u8 *addr, u8 *by
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* therefore this function checks its status and clears the stop bit.
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*/
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static int ds13307_start_oscillator(struct i2c_client *client) {
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- u8 data;
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+ u8 data, addr, buf[2];
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int r, v;
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- unsigned char addr;
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- char buf[2];
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if (model_detected == DEVICE_DS1307) {
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addr = COMMON_SEC;
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} else {
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@@ -197,9 +195,8 @@ static const struct rtc_class_ops ds13307_rtc_ops = {
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* -1 on failure
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*/
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static int ds13307_detect_device(struct i2c_client *client) {
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- u8 data;
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+ u8 data, addr = DS1307_MAX_ADDR;
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int result;
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- unsigned char addr = DS1307_MAX_ADDR;
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result = ds13307_read_bytes(client, &addr, &data, 1);
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if (!result) {
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printk(KERN_INFO "%s: Detected device DS1307\n", M_NAME);
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@@ -235,19 +232,21 @@ static int ds13307_probe(struct i2c_client *client,
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}
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static struct i2c_device_id ds13307_idtable[] = {
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- { "ds1307", 0 }, {}
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+ { "ds1307", 0 },
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+ { "ds1337", 0 }, {}
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};
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MODULE_DEVICE_TABLE(i2c, ds13307_idtable);
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static struct of_device_id ds13307_of_match[] = {
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{ .compatible = "dallas,ds1307" },
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+ { .compatible = "dallas,ds1337" },
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{}
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};
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MODULE_DEVICE_TABLE(of, ds13307_of_match);
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static struct i2c_driver ds13307_driver = {
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.driver = {
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- .name = "rtc-ds13307",
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+ .name = M_NAME,
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.of_match_table = of_match_ptr(ds13307_of_match),
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.owner = THIS_MODULE
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},
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