On current ST platforms the LPC controls a number of functions including Watchdog and Real Time Clock. This patch provides the bindings used to configure LPC in Clocksource mode. Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> --- .../devicetree/bindings/timer/st,stih407-lpc | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/st,stih407-lpc diff --git a/Documentation/devicetree/bindings/timer/st,stih407-lpc b/Documentation/devicetree/bindings/timer/st,stih407-lpc new file mode 100644 index 0000000..72acb48 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/st,stih407-lpc @@ -0,0 +1,28 @@ +STMicroelectronics Low Power Controller (LPC) - Clocksource +=========================================================== + +LPC currently supports Watchdog OR Real Time Clock OR Clocksource +functionality. + +[See: ../watchdog/st_lpc_wdt.txt for Watchdog options] +[See: ../rtc/rtc-st-lpc.txt for RTC options] + +Required properties + +- compatible : Must be: "st,stih407-lpc" +- reg : LPC registers base address + size +- interrupts : LPC interrupt line number and associated flags +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) +- st,lpc-mode : The LPC can run either one of three modes: + ST_LPC_MODE_RTC [0] + ST_LPC_MODE_WDT [1] + ST_LPC_MODE_CLKSRC [2] + One (and only one) mode must be selected. + +Example: + lpc@fde05000 { + compatible = "st,stih407-lpc"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,lpc-mode = <ST_LPC_MODE_CLKSRC>; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html