From: "Rob Herring (Arm)" <robh@kernel.org>
To: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Sebastian Reichel <sebastian.reichel@collabora.com>,
linux-arm-msm@vger.kernel.org, kernel@collabora.com,
devicetree@vger.kernel.org,
Konrad Dybcio <konradybcio@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
linux-rockchip@lists.infradead.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Heiko Stuebner <heiko@sntech.de>,
Bjorn Andersson <andersson@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Subject: Re: [PATCH v2 1/4] dt-bindings: connector: Add DP AltMode VDO definitions
Date: Fri, 30 Oct 2026 10:37:34 -0500 [thread overview]
Message-ID: <179337465400.84888.3742821306180062985.robh@kernel.org> (raw)
In-Reply-To: <20261017-dp-altmode-dt-defines-v2-1-7ab3d93553dd@collabora.com>
On Sat, 17 Oct 2026 21:59:30 +0200, Sebastian Reichel wrote:
> From: Sebastian Reichel <sebastian.reichel@collabora.com>
>
> The typical USB-C DisplayPort AltMode capabilities for a down facing
> port (i.e. sending out video data) looks like this:
>
> altmodes {
> displayport {
> svid = /bits/ 16 <0xff01>;
> vdo = <0x00001c46>;
> };
> };
>
> Improve the readability by adding defines for the numbers, so that
> the above instead looks like this:
>
> altmodes {
> displayport {
> svid = /bits/ 16 <USB_SVID_DP_ALTMODE>;
> vdo = <VDO_DP(DP_CAP_DPAM_V2_0, DP_CAP_CABLE_TYPE_PASSIVE,
> DP_CAP_UHBR_13_5_UNSUPPORTED,
> DP_PIN_UFP_NONE, DP_PIN_DFP_C_D_E,
> DP_CAP_USB2_USED, DP_CAP_RECEPTACLE,
> DP_CAP_SIGNALLING_HBR3, DP_CAP_DFP_D)>;
> };
> };
>
> The generated DT binary will stay unchanged.
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
> include/dt-bindings/usb/pd.h | 58 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 58 insertions(+)
>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
next prev parent reply other threads:[~2026-10-30 15:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-17 19:59 [PATCH v2 0/4] Add DP AltMode VDO definitions for DT usage Sebastian Reichel
2026-10-17 19:59 ` [PATCH v2 1/4] dt-bindings: connector: Add DP AltMode VDO definitions Sebastian Reichel
2026-10-30 15:37 ` Rob Herring (Arm) [this message]
2026-10-17 19:59 ` [PATCH v2 2/4] arm64: dts: rockchip: Use DP AltMode defines Sebastian Reichel
2026-10-17 19:59 ` [PATCH v2 3/4] arm64: dts: mediatek: " Sebastian Reichel
2026-10-17 19:59 ` [PATCH v2 4/4] arm64: dts: qcom: " Sebastian Reichel
2026-10-18 11:56 ` Dmitry Baryshkov
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