openwrtv4/target/linux/ipq806x/patches/013-ARM-msm-add-watchdog-entries-to-DT-timer-binding-doc.patch
John Crispin 565a6f2a27 ipq806x: fix "reboot" command
The watchdog driver already registers a restart notifier, we just have
to enable it in the config and in the DT to fix the "reboot" command.

This is done by integratin the following patch-set:
https://lkml.org/lkml/2015/2/20/610

I'm copy-pasting the description below:
qcom-wdt is currently assuming the presence of a dedicated node in DT
to gets its configuration. However, on msm architecture, the watchdog is
usually part of the timer block. So this patch-set is changing the driver
and slightly enhancing the timer DT bindings to provide the relevant clocks
and interrupts.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 44504
2015-02-22 08:29:14 +00:00

50 lines
2.1 KiB
Diff

From e535f01dffb6dd9e09934fa219be52af3437a8f6 Mon Sep 17 00:00:00 2001
From: Mathieu Olivari <mathieu@codeaurora.org>
Date: Thu, 19 Feb 2015 20:36:27 -0800
Subject: [PATCH 3/3] ARM: msm: add watchdog entries to DT timer binding doc
The watchdog has been reworked to use the same DT node as the timer.
This change is updating the device tree doc accordingly.
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
---
Documentation/devicetree/bindings/arm/msm/timer.txt | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
--- a/Documentation/devicetree/bindings/arm/msm/timer.txt
+++ b/Documentation/devicetree/bindings/arm/msm/timer.txt
@@ -9,11 +9,17 @@ Properties:
"qcom,scss-timer" - scorpion subsystem
- interrupts : Interrupts for the the debug timer, the first general purpose
- timer, and optionally a second general purpose timer in that
- order.
+ timer, and optionally a second general purpose timer, and
+ optionally as well, 2 watchdog interrupts, in that order.
- reg : Specifies the base address of the timer registers.
+- clocks: Reference to the parent clocks, one per output clock. The parents
+ must appear in the same order as the clock names.
+
+- clock-names: The name of the clocks as free-form strings. They should be in
+ the same order as the clocks.
+
- clock-frequency : The frequency of the debug timer and the general purpose
timer(s) in Hz in that order.
@@ -29,9 +35,13 @@ Example:
compatible = "qcom,scss-timer", "qcom,msm-timer";
interrupts = <1 1 0x301>,
<1 2 0x301>,
- <1 3 0x301>;
+ <1 3 0x301>,
+ <1 4 0x301>,
+ <1 5 0x301>;
reg = <0x0200a000 0x100>;
clock-frequency = <19200000>,
<32768>;
+ clocks = <&sleep_clk>;
+ clock-names = "sleep";
cpu-offset = <0x40000>;
};