From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Thu, 22 Jan 2015 11:56:05 +0000 Subject: [PATCH v2 7/9] rtc: bindings: Provide ST bindings for ST's LPC RTC device In-Reply-To: <1421927767-28889-1-git-send-email-lee.jones@linaro.org> References: <1421927767-28889-1-git-send-email-lee.jones@linaro.org> Message-ID: <1421927767-28889-8-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 RTC mode. Signed-off-by: Lee Jones --- .../devicetree/bindings/rtc/rtc-st-lpc.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt diff --git a/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt new file mode 100644 index 0000000..aaf9855 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt @@ -0,0 +1,25 @@ +STMicroelectronics Low Power Controller (LPC) - RTC +=================================================== + +LPC currently supports Watchdog OR Real Time Clock functionality. + +[See: ../watchdog/st_lpc_wdt.txt for Watchdog options] + +Required properties + +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" + "st,stih415-lpc" "st,stid127-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 two modes ST_LPC_MODE_RTC [0] or + ST_LPC_MODE_WDT [1]. One (and only one) mode must be + selected. + +Example: + lpc at fde05000 { + compatible = "st,stih416-lpc-watchdog"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,lpc-mode = ; + }; -- 1.9.1