From: Steve Longerbeam <slongerbeam@gmail.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
linux-kernel@vger.kernel.org (open list:CLOCKSOURCE,
CLOCKEVENT DRIVERS),
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-arm-kernel@lists.infradead.org (moderated
list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE)
Cc: Steve Longerbeam <slongerbeam@gmail.com>
Subject: [PATCH 2/2] dt-bindings: timer: imx: gpt: Add pin group bindings for input capture
Date: Tue, 15 Oct 2019 18:05:44 -0700 [thread overview]
Message-ID: <20191016010544.14561-3-slongerbeam@gmail.com> (raw)
In-Reply-To: <20191016010544.14561-1-slongerbeam@gmail.com>
Add pin group bindings to support input capture function of the i.MX
GPT.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
---
.../devicetree/bindings/timer/fsl,imxgpt.txt | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
index 5d8fd5b52598..32797b7b0d02 100644
--- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
+++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
@@ -33,6 +33,13 @@ Required properties:
an entry for each entry in clock-names.
- clock-names : must include "ipg" entry first, then "per" entry.
+Optional properties:
+
+- pinctrl-0: For the i.MX GPT to support the Input Capture function,
+ the input capture channel pin groups must be listed here.
+- pinctrl-names: must be "default".
+
+
Example:
gpt1: timer@10003000 {
@@ -43,3 +50,24 @@ gpt1: timer@10003000 {
<&clks IMX27_CLK_PER1_GATE>;
clock-names = "ipg", "per";
};
+
+
+Example with input capture channel 0 support:
+
+pinctrl_gpt_input_capture0: gptinputcapture0grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT0__GPT_CAPTURE1 0x1b0b0
+ >;
+};
+
+gpt: gpt@2098000 {
+ compatible = "fsl,imx6q-gpt", "fsl,imx31-gpt";
+ reg = <0x02098000 0x4000>;
+ interrupts = <0 55 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX6QDL_CLK_GPT_IPG>,
+ <&clks IMX6QDL_CLK_GPT_IPG_PER>,
+ <&clks IMX6QDL_CLK_GPT_3M>;
+ clock-names = "ipg", "per", "osc_per";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpt_input_capture0>;
+};
--
2.17.1
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next prev parent reply other threads:[~2019-10-16 1:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191016010544.14561-1-slongerbeam@gmail.com>
2019-10-16 1:05 ` [PATCH 1/2] clocksource/drivers/imx: add input capture support Steve Longerbeam
2019-10-16 1:05 ` Steve Longerbeam [this message]
2019-10-27 21:21 ` [PATCH 2/2] dt-bindings: timer: imx: gpt: Add pin group bindings for input capture Rob Herring
2019-10-28 23:59 ` Steve Longerbeam
2019-10-29 19:58 ` Rob Herring
2019-11-03 20:20 ` Steve Longerbeam
2019-11-04 20:09 ` Rob Herring
2019-11-04 22:36 ` Steve Longerbeam
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