From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Chen Subject: [PATCH v3 3/3] dt-bindings: timer: Add andestech atcpit100 timer binding doc Date: Tue, 7 Nov 2017 15:19:53 +0800 Message-ID: <1510039193-32522-4-git-send-email-rickchen36@gmail.com> References: <1510039193-32522-1-git-send-email-rickchen36@gmail.com> Return-path: In-Reply-To: <1510039193-32522-1-git-send-email-rickchen36@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: daniel.lezcano@linaro.org, tglx@linutronix.de, robh@kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, rick@andestech.com Cc: Rick Chen , Greentime Hu List-Id: devicetree@vger.kernel.org Add a document to describe Andestech atcpit100 timer and binding information. Signed-off-by: Rick Chen Acked-by: Rob Herring Signed-off-by: Greentime Hu --- .../bindings/timer/andestech,atcpit100-timer.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt diff --git a/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt b/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt new file mode 100644 index 0000000..a87278a --- /dev/null +++ b/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt @@ -0,0 +1,31 @@ +Andestech ATCPIT100 timer +------------------------------------------------------------------ +ATCPIT100 is a generic IP block from Andes Technology, embedded in +Andestech AE3XX platforms and other designs. + +This timer is a set of compact multi-function timers, which can be +used as pulse width modulators (PWM) as well as simple timers. + +It supports up to 4 PIT channels. Each PIT channel is a +multi-function timer and provide the following usage scenarios: +One 32-bit timer +Two 16-bit timers +Four 8-bit timers +One 16-bit PWM +One 16-bit timer and one 8-bit PWM +Two 8-bit timer and one 8-bit PWM + +Required properties: +- compatible : Should be "andestech,atcpit100" +- reg : Address and length of the register set +- interrupts : Reference to the timer interrupt +- clock-frequency : The rate in HZ in input of the Andestech ATCPIT100 timer + +Examples: + +timer0: timer@f0400000 { + compatible = "andestech,atcpit100"; + reg = <0xf0400000 0x1000>; + interrupts = <2 4>; + clock-frequency = <30000000>; +}; -- 2.7.4