[PATCH v3 7/7] arm64: dts: k3-j721e-proc-board: Add wait time for sampling Type-C DIR line

From: Roger Quadros
Date: Fri May 08 2020 - 04:30:03 EST


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@xxxxxx>
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>
---
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 55c98688eceb..8c505904d7cb 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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