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From:   Anson.Huang@nxp.com
To:     daniel.lezcano@linaro.org, tglx@linutronix.de, robh+dt@kernel.org,
        mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de,
        kernel@pengutronix.de, festevam@gmail.com, l.stach@pengutronix.de,
        abel.vesa@nxp.com, ccaione@baylibre.com, angus@akkea.ca,
        andrew.smirnov@gmail.com, agx@sigxcpu.org,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
Cc:     Linux-imx@nxp.com
Subject: [PATCH 1/3] clocksource/drivers/sysctr: Add an optional property
Date:   Fri, 21 Jun 2019 16:28:36 +0800
Message-Id: <20190621082838.12630-1-Anson.Huang@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Anson Huang <Anson.Huang@nxp.com>

This patch adds an optional property "clock-frequency" to pass
the system counter frequency value to kernel system counter
driver and indicate the driver to skip of_clk operations, this
is to support those platforms using platform driver model for
clock driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
 Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt
index d576599..c9907a0 100644
--- a/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt
+++ b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.txt
@@ -14,6 +14,11 @@ Required properties:
 - clocks : 	    Specifies the counter clock.
 - clock-names: 	    Specifies the clock's name of this module
 
+Optional properties:
+
+- clock-frequency : Specifies system counter clock frequency and indicates system
+		    counter driver to skip clock operations.
+
 Example:
 
 	system_counter: timer@306a0000 {
@@ -22,4 +27,5 @@ Example:
 		clocks = <&clk_8m>;
 		clock-names = "per";
 		interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <8333333>;
 	};
-- 
2.7.4