From: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Date: Thu, 8 Jun 2017 12:36:54 +0200
Subject: rtc: ds1307: add ds1308 variant
Git-commit: 300a7735becf55f7fd18f8cd3dc3b945a0cab712
Patch-mainline: v4.13-rc1
References: fate#326530,fate#326531,fate#326535,fate#326538,fate#326539
The ds1308 variant is very similar to the already supported ds1338
variant, it have more debug registers and a square wave clock output.
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/rtc/rtc-ds1307.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 922675281b7a..57ea25400ecd 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -34,6 +34,7 @@
*/
enum ds_type {
ds_1307,
+ ds_1308,
ds_1337,
ds_1338,
ds_1339,
@@ -152,6 +153,10 @@ static struct chip_desc chips[last_ds_type] = {
.nvram_offset = 8,
.nvram_size = 56,
},
+ [ds_1308] = {
+ .nvram_offset = 8,
+ .nvram_size = 56,
+ },
[ds_1337] = {
.alarm = 1,
.century_reg = DS1307_REG_MONTH,
@@ -198,6 +203,7 @@ static struct chip_desc chips[last_ds_type] = {
static const struct i2c_device_id ds1307_id[] = {
{ "ds1307", ds_1307 },
+ { "ds1308", ds_1308 },
{ "ds1337", ds_1337 },
{ "ds1338", ds_1338 },
{ "ds1339", ds_1339 },
@@ -223,6 +229,10 @@ static const struct of_device_id ds1307_of_match[] = {
.data = (void *)ds_1307
},
{
+ .compatible = "dallas,ds1308",
+ .data = (void *)ds_1308
+ },
+ {
.compatible = "dallas,ds1337",
.data = (void *)ds_1337
},
@@ -282,6 +292,7 @@ MODULE_DEVICE_TABLE(of, ds1307_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id ds1307_acpi_ids[] = {
{ .id = "DS1307", .driver_data = ds_1307 },
+ { .id = "DS1308", .driver_data = ds_1308 },
{ .id = "DS1337", .driver_data = ds_1337 },
{ .id = "DS1338", .driver_data = ds_1338 },
{ .id = "DS1339", .driver_data = ds_1339 },
@@ -1558,6 +1569,7 @@ static int ds1307_probe(struct i2c_client *client,
goto read_rtc;
}
break;
+ case ds_1308:
case ds_1338:
/* clock halted? turn it on, so clock can tick. */
if (tmp & DS1307_BIT_CH)
--
2.11.0