From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: "Abel Vesa" <abel.vesa@oss.qualcomm.com>,
"Sebastian Reichel" <sre@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Hans de Goede" <hansg@kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Bryan O'Donoghue" <bryan.odonoghue@linaro.org>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Abel Vesa" <abelvesa@kernel.org>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: mahua-lenovo-thinkpad-t14s-gen7: Describe the Embedded Controller
Date: Mon, 9 Nov 2026 11:19:46 +0100 [thread overview]
Message-ID: <7dae5091-6d51-4bf9-9a94-bb2d98e2ad28@oss.qualcomm.com> (raw)
In-Reply-To: <20261107-t14s-gen7-ec-v1-3-f4a8edaac447@oss.qualcomm.com>
On 11/6/26 11:01 PM, Abel Vesa wrote:
> The ThinkPad T14s Gen 7 has its embedded controller at 0x28 on QUP
> i2c9 (ACPI \_SB.IC10). It uses a different command protocol than the
> Gen 6 one, so describe it with the Gen 7 compatible. Its interrupt is
> GPIO 66, as on the Gen 6, but the firmware describes it as edge
> triggered, active low. Using a level trigger makes the handler fire
> continuously while the EC holds the line low, with no event pending.
>
> This provides the EC hotkeys, LEDs and keyboard backlight.
>
> Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
> ---
[...]
> &lpass_vamacro {
> pinctrl-0 = <&dmic01_default>;
> pinctrl-names = "default";
> @@ -987,6 +1005,12 @@ &tlmm {
> <44 4>, /* TPM */
> <139 1>; /* TZ trigger */
>
> + ec_int_n_default: ec-int-n-state {
> + pins = "gpio66";
> + function = "gpio";
> + bias-disable;
> + };
nit: please keep these sorted by pin #
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-11-09 10:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 22:01 [PATCH 0/3] platform: arm64: lenovo-thinkpad-t14s: Add support for the Gen 7 EC Abel Vesa
2026-11-06 22:01 ` [PATCH 1/3] dt-bindings: embedded-controller: lenovo,thinkpad-t14s-ec: Add Gen 7 support Abel Vesa
2026-11-06 22:01 ` [PATCH 2/3] platform: arm64: lenovo-thinkpad-t14s: Add Gen 7 EC support Abel Vesa
2026-11-06 22:01 ` [PATCH 3/3] arm64: dts: qcom: mahua-lenovo-thinkpad-t14s-gen7: Describe the Embedded Controller Abel Vesa
2026-11-09 10:19 ` Konrad Dybcio [this message]
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