From 3fc70077e6a9feec7ec080710677a507bd41322c Mon Sep 17 00:00:00 2001 From: Joshua Clayton Date: Fri, 13 Feb 2015 14:40:29 -0800 Subject: [PATCH] drivers/rtc/rtc-pcf2123.c: add support for devicetree Add compatible string "nxp,rtc-pcf2123" Document the binding Signed-off-by: Joshua Clayton Cc: Mark Rutland Cc: Alessandro Zummo Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .../devicetree/bindings/rtc/nxp,rtc-2123.txt | 16 ++++++++++++++++ drivers/rtc/rtc-pcf2123.c | 10 ++++++++++ 2 files changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt diff --git a/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt b/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt new file mode 100644 index 000000000000..5cbc0b145a61 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt @@ -0,0 +1,16 @@ +NXP PCF2123 SPI Real Time Clock + +Required properties: +- compatible: should be: "nxp,rtc-pcf2123" +- reg: should be the SPI slave chipselect address + +Optional properties: +- spi-cs-high: PCF2123 needs chipselect high + +Example: + +rtc: nxp,rtc-pcf2123@3 { + compatible = "nxp,rtc-pcf2123" + reg = <3> + spi-cs-high; +}; diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index d1953bb244c5..8a7556cbcb7f 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -340,10 +341,19 @@ static int pcf2123_remove(struct spi_device *spi) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id pcf2123_dt_ids[] = { + { .compatible = "nxp,rtc-pcf2123", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, pcf2123_dt_ids); +#endif + static struct spi_driver pcf2123_driver = { .driver = { .name = "rtc-pcf2123", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(pcf2123_dt_ids), }, .probe = pcf2123_probe, .remove = pcf2123_remove, -- 2.20.1