summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc
diff options
context:
space:
mode:
authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc')
-rw-r--r--kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc28
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc b/kernel/Documentation/devicetree/bindings/timer/st,stih407-lpc
new file mode 100644
index 000000000..72acb487b
--- /dev/null
+++ b/kernel/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>;
+ };