diff options
| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-07-13 03:36:41 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-08-31 19:21:34 +0300 |
| commit | 78aaa06d7956dc4cd42fff5033f4bf6fafcbc79f (patch) | |
| tree | 755e6e13c16fa918af5ca34cf035c3fa96f2392a /drivers/rtc | |
| parent | 50d6c0ea8111100a102c03b4410ba1e45fa8b771 (diff) | |
| download | linux-78aaa06d7956dc4cd42fff5033f4bf6fafcbc79f.tar.xz | |
rtc: ds1307: add Intersil ISL12057 support
Intersil ISL12057 is a drop-in replacement for DS1337. It can be supported
by the ds1307 driver.
Acked-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 6 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 6ce3dad73253..83a788416721 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -208,14 +208,14 @@ config RTC_DRV_AS3722 will be called rtc-as3722. config RTC_DRV_DS1307 - tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025" + tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025, ISL12057" help If you say yes here you get support for various compatible RTC chips (often with battery backup) connected with I2C. This driver should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00, - EPSON RX-8025 and probably other chips. In some cases the RTC - must already have been initialized (by manufacturing or a - bootloader). + EPSON RX-8025, Intersil ISL12057 and probably other chips. In some + cases the RTC must already have been initialized (by manufacturing or + a bootloader). The first seven registers on these chips hold an RTC, and other registers may add features such as NVRAM, a trickle charger for diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 712e221d2415..4e31036ee259 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -186,6 +186,7 @@ static const struct i2c_device_id ds1307_id[] = { { "mcp7941x", mcp794xx }, { "pt7c4338", ds_1307 }, { "rx8025", rx_8025 }, + { "isl12057", ds_1337 }, { } }; MODULE_DEVICE_TABLE(i2c, ds1307_id); @@ -1333,6 +1334,11 @@ static int ds1307_probe(struct i2c_client *client, if (of_property_read_bool(client->dev.of_node, "wakeup-source")) { ds1307_can_wakeup_device = true; } + /* Intersil ISL12057 DT backward compatibility */ + if (of_property_read_bool(client->dev.of_node, + "isil,irq2-can-wakeup-machine")) { + ds1307_can_wakeup_device = true; + } #endif switch (ds1307->type) { |