Add compatible string "nxp,rtc-pcf2123"
Document the binding
Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
--- /dev/null
+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;
+};
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/of.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/rtc.h>
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,