From: Konrad Dybcio <konradybcio@kernel.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Matthias Schiffer <matthias.schiffer@ew.tq-group.com>,
Vincent Huang <vincent.huang@tw.synaptics.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Subject: [PATCH 1/3] dt-bindings: input: syna,rmi4: Allow 'panel' property
Date: Fri, 11 Sep 2026 15:18:27 +0200 [thread overview]
Message-ID: <20260911-topic-rmi4_panel_follower-v1-1-c1b2cf1cdb62@oss.qualcomm.com> (raw)
In-Reply-To: <20260911-topic-rmi4_panel_follower-v1-0-c1b2cf1cdb62@oss.qualcomm.com>
From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Many RMI4 implementations are present in in-cell panels where the
precise power seqeuencing is paramount to both the display and the
touch parts to function properly.
Allow binding to a panel node, which is expected to handle that.
Assisted-by: LLM
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
Documentation/devicetree/bindings/input/syna,rmi4.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/syna,rmi4.yaml b/Documentation/devicetree/bindings/input/syna,rmi4.yaml
index fb4804ac3544..08a1786d3c8a 100644
--- a/Documentation/devicetree/bindings/input/syna,rmi4.yaml
+++ b/Documentation/devicetree/bindings/input/syna,rmi4.yaml
@@ -57,6 +57,10 @@ properties:
vdd-supply: true
vio-supply: true
+ panel:
+ description: Reference to the panel this touchscreen follows for power sequencing.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
rmi4-f01@1:
type: object
additionalProperties: false
--
2.55.0
next prev parent reply other threads:[~2026-09-11 13:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 13:18 [PATCH 0/3] drm_panel_follower support for RMI4 Konrad Dybcio
2026-09-11 13:18 ` Konrad Dybcio [this message]
2026-09-11 13:18 ` [PATCH 2/3] Input: synaptics-rmi4: Support drm_panel_follower Konrad Dybcio
2026-09-11 13:32 ` sashiko-bot
2026-09-11 13:18 ` [PATCH 3/3] arm64: dts: qcom: sdm845-tama: Declare touchscreen as a panel follower Konrad Dybcio
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