From: Roger Quadros <rogerq@ti.com>
To: <t-kristo@ti.com>
Cc: <robh@kernel.org>, <kishon@ti.com>, <nm@ti.com>,
<vigneshr@ti.com>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Roger Quadros <rogerq@ti.com>,
Sekhar Nori <nsekhar@ti.com>
Subject: [PATCH v4 6/6] arm64: dts: k3-j721e-proc-board: Add wait time for sampling Type-C DIR line
Date: Mon, 29 Jun 2020 15:52:54 +0300 [thread overview]
Message-ID: <20200629125254.28754-7-rogerq@ti.com> (raw)
In-Reply-To: <20200629125254.28754-1-rogerq@ti.com>
The Type-C compainon chip on the board needs ~133ms (tCCB_DEFAULT)
to debounce the CC lines in order to detect attach and plug orientation
and reflect the correct DIR status. [1]
On the EVM however we need to wait upto 700ms before sampling the
Type-C DIR line else we can get incorrect direction state.
[1] http://www.ti.com/lit/ds/symlink/tusb321.pdf
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 3294b96ebba8..6307fe5ccb06 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -350,6 +350,7 @@
&serdes_wiz3 {
typec-dir-gpios = <&main_gpio1 3 GPIO_ACTIVE_HIGH>;
+ typec-dir-debounce-ms = <700>; /* TUSB321, tCCB_DEFAULT 133 ms */
};
&serdes3 {
--
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next prev parent reply other threads:[~2020-06-29 19:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 12:52 [PATCH v4 0/6] arm64: ti: k3-j721e: Add SERDES PHY and USB3.0 support Roger Quadros
2020-06-29 12:52 ` [PATCH v4 1/6] dt-bindings: mfd: ti,j721e-system-controller.yaml: Add J721e system controller Roger Quadros
2020-07-09 23:18 ` Rob Herring
2020-06-29 12:52 ` [PATCH v4 2/6] arm64: dts: ti: k3-j721e-main: Add WIZ and SERDES PHY nodes Roger Quadros
2020-06-29 12:52 ` [PATCH v4 3/6] arm64: dts: ti: k3-j721e-main: Add system controller node and SERDES lane mux Roger Quadros
2020-07-09 23:19 ` Rob Herring
2020-06-29 12:52 ` [PATCH v4 4/6] arm64: dts: ti: k3-j721e-main.dtsi: Add USB to SERDES MUX Roger Quadros
2020-06-29 12:52 ` [PATCH v4 5/6] arm64: dts: ti: k3-j721e: Enable Super-Speed support for USB0 Roger Quadros
2020-06-29 12:52 ` Roger Quadros [this message]
2020-07-17 7:36 ` [PATCH v4 0/6] arm64: ti: k3-j721e: Add SERDES PHY and USB3.0 support Tero Kristo
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