diff options
| author | Emil Bartczak <emilbart@gmail.com> | 2016-03-21 03:06:10 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-03-22 00:55:29 +0300 |
| commit | 7f8a58925b4c0198c12344025b6ffd5dd7d9f1f5 (patch) | |
| tree | b399addb8b7ff7258ad9cae5b3de8b1eccb695ef | |
| parent | 15c6ea6f81328b0071cf63fb00b324199a9b8647 (diff) | |
| download | linux-7f8a58925b4c0198c12344025b6ffd5dd7d9f1f5.tar.xz | |
rtc: mcp795: add devicetree support
Add device tree support to the rtc-mcp795 driver.
Signed-off-by: Emil Bartczak <emilbart@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/maxim,mcp795.txt | 11 | ||||
| -rw-r--r-- | drivers/rtc/rtc-mcp795.c | 10 |
2 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt b/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt new file mode 100644 index 000000000000..a59fdd8c236d --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt @@ -0,0 +1,11 @@ +* Maxim MCP795 SPI Serial Real-Time Clock + +Required properties: +- compatible: Should contain "maxim,mcp795". +- reg: SPI address for chip + +Example: + mcp795: rtc@0 { + compatible = "maxim,mcp795"; + reg = <0>; + }; diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c index 1c91ce8a6d75..025bb33b9cd2 100644 --- a/drivers/rtc/rtc-mcp795.c +++ b/drivers/rtc/rtc-mcp795.c @@ -20,6 +20,7 @@ #include <linux/printk.h> #include <linux/spi/spi.h> #include <linux/rtc.h> +#include <linux/of.h> /* MCP795 Instructions, see datasheet table 3-1 */ #define MCP795_EEREAD 0x03 @@ -183,9 +184,18 @@ static int mcp795_probe(struct spi_device *spi) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id mcp795_of_match[] = { + { .compatible = "maxim,mcp795" }, + { } +}; +MODULE_DEVICE_TABLE(of, mcp795_of_match); +#endif + static struct spi_driver mcp795_driver = { .driver = { .name = "rtc-mcp795", + .of_match_table = of_match_ptr(mcp795_of_match), }, .probe = mcp795_probe, }; |