Messages in this thread Patch in this message | | | From | Roland Stigge <> | Subject | [PATCH RESEND v3] rtc: Add device tree support for LPC32xx | Date | Fri, 20 Apr 2012 16:42:04 +0200 |
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This patch adds device tree support for rtc-lpc32xx.c
Signed-off-by: Roland Stigge <stigge@antcom.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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Applies to v3.4-rc3
NOTE: I separated out this patch from the first patch series of the LPC32xx device tree conversion because most of those patches are already applied to -next and are basically unrelated. The LPC32xx devicetree conversion builds upon this patch.
Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt | 15 +++++++++++++++ drivers/rtc/rtc-lpc32xx.c | 12 +++++++++++- 2 files changed, 26 insertions(+), 1 deletion(-)
--- /dev/null +++ linux-2.6/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt @@ -0,0 +1,15 @@ +* NXP LPC32xx SoC Real Time Clock controller + +Required properties: +- compatible: must be "nxp,lpc32xx-rtc" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: The RTC interrupt + +Example: + + rtc@40024000 { + compatible = "nxp,lpc32xx-rtc"; + reg = <0x40024000 0x1000>; + interrupts = <52 0>; + }; --- linux-2.6.orig/drivers/rtc/rtc-lpc32xx.c +++ linux-2.6/drivers/rtc/rtc-lpc32xx.c @@ -19,6 +19,7 @@ #include <linux/rtc.h> #include <linux/slab.h> #include <linux/io.h> +#include <linux/of.h> /* * Clock and Power control register offsets @@ -386,13 +387,22 @@ static const struct dev_pm_ops lpc32xx_r #define LPC32XX_RTC_PM_OPS NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id lpc32xx_rtc_match[] = { + { .compatible = "nxp,lpc32xx-rtc" }, + { } +}; +MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match); +#endif + static struct platform_driver lpc32xx_rtc_driver = { .probe = lpc32xx_rtc_probe, .remove = __devexit_p(lpc32xx_rtc_remove), .driver = { .name = RTC_NAME, .owner = THIS_MODULE, - .pm = LPC32XX_RTC_PM_OPS + .pm = LPC32XX_RTC_PM_OPS, + .of_match_table = of_match_ptr(lpc32xx_rtc_match), }, };
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