From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Prashant Malani <pmalani@chromium.org>,
Stephen Boyd <swboyd@chromium.org>,
Pin-yen Lin <treapking@chromium.org>
Subject: Re: [PATCH 1/2] dt-bindings: usb: Introduce GPIO-based SBU mux
Date: Thu, 11 Aug 2022 12:14:48 +0300 [thread overview]
Message-ID: <a13bce60-25b4-d075-d56a-d1283e91e3ba@linaro.org> (raw)
In-Reply-To: <20220810204750.3672362-2-bjorn.andersson@linaro.org>
On 10/08/2022 23:47, Bjorn Andersson wrote:
> Introduce a binding for GPIO-based mux hardware used for connecting,
> disconnecting and switching orientation of the SBU lines in USB Type-C
> applications.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> .../devicetree/bindings/usb/gpio-sbu-mux.yaml | 77 +++++++++++++++++++
> 1 file changed, 77 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
>
> diff --git a/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
> new file mode 100644
> index 000000000000..7d8aca40c7ca
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/gpio-sbu-mux.yaml
> @@ -0,0 +1,77 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/usb/gpio-sbu-mux.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: GPIO-based SBU mux
> +
> +maintainers:
> + - Bjorn Andersson <bjorn.andersson@linaro.org>
> +
> +description:
> + In USB Type-C applications the SBU lines needs to be connected, disconnected
> + and swapped depending on the altmode and orientation. This binding describes
> + a family of hardware which perform this based on GPIO controls.
+Cc few folks.
This looks familiar to:
https://lore.kernel.org/linux-devicetree/eaf2fda8-0cd6-b518-10cb-4e21b5f8c909@linaro.org/T/#m39254b7f8970b3e1264f9d1a979557bb46ab162c
Rob and Stephen had several concerns about that approach.
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-08-11 9:14 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 20:47 [PATCH 0/2] usb: typec: mux: GPIO-based SBU mux Bjorn Andersson
2022-08-10 20:47 ` [PATCH 1/2] dt-bindings: usb: Introduce " Bjorn Andersson
2022-08-11 9:14 ` Krzysztof Kozlowski [this message]
2022-08-14 21:01 ` Rob Herring
2022-08-17 23:00 ` Bjorn Andersson
2022-08-19 1:09 ` Stephen Boyd
2022-08-19 20:14 ` Prashant Malani
2022-08-19 20:49 ` Stephen Boyd
2022-08-19 21:39 ` Bjorn Andersson
2022-08-19 22:18 ` Prashant Malani
2022-08-20 4:04 ` Bjorn Andersson
2022-08-23 18:21 ` Prashant Malani
2022-08-19 22:00 ` Bjorn Andersson
2022-08-19 22:55 ` Prashant Malani
2022-08-20 4:09 ` Bjorn Andersson
2022-08-23 18:54 ` Prashant Malani
2022-08-26 3:02 ` Bjorn Andersson
2022-08-19 21:26 ` Bjorn Andersson
2022-08-20 3:51 ` Stephen Boyd
2022-08-20 4:56 ` Bjorn Andersson
2022-08-26 1:49 ` Stephen Boyd
2022-08-10 20:47 ` [PATCH 2/2] usb: typec: mux: " Bjorn Andersson
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