linux-kernel - [PATCH 3/7] ASoC: dt-bindings: add TDM slot idle mode properties

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251209-tdm-idle-slots-v1-3-38dabf6bc01e@gmail.com>
Date: Tue, 09 Dec 2025 19:31:16 +1000
From: James Calligeros <jcalligeros99@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>, 
 Shengjiu Wang <shengjiu.wang@....com>, Jaroslav Kysela <perex@...ex.cz>, 
 Takashi Iwai <tiwai@...e.com>, Shenghao Ding <shenghao-ding@...com>, 
 Kevin Lu <kevin-lu@...com>, Baojun Xu <baojun.xu@...com>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, asahi@...ts.linux.dev, 
 James Calligeros <jcalligeros99@...il.com>
Subject: [PATCH 3/7] ASoC: dt-bindings: add TDM slot idle mode properties

Add properties to describe TDM slot idle behaviour.

Signed-off-by: James Calligeros <jcalligeros99@...il.com>
---
 .../bindings/sound/tdm-slot.yaml         | 32 +++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/tdm-slot.yaml b/Documentation/devicetree/bindings/sound/tdm-slot.yaml
index b67844e1dfd5..b247b315d7f4 100644
--- a/Documentation/devicetree/bindings/sound/tdm-slot.yaml
+++ b/Documentation/devicetree/bindings/sound/tdm-slot.yaml
@@ -11,6 +11,16 @@ maintainers:
 
 select: false
 
+$defs:
+  dai-tdm-idle-mode:
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - none
+      - off
+      - zero
+      - pulldown
+      - hiz
+
 definitions:
   dai-tdm-slot-num:
     $ref: /schemas/types.yaml#/definitions/uint32
@@ -32,3 +42,25 @@ definitions:
   dai-tdm-slot-rx-mask:
     $ref: /schemas/types.yaml#/definitions/uint32-array
     description: Receive direction slot mask. Optional. Identical to TX mask.
+
+  dai-tdm-slot-tx-idle-mode:
+    $ref: "#/$defs/dai-tdm-idle-mode"
+    description: Transmit direction idle slot mode. Optional. For hardware
+      that can configure its behaviour during idle TDM slots via
+      .set_tdm_idle(). "None" represents UB/unspecified behaviour and is the
+      same as not setting this property.
+
+  dai-tdm-slot-rx-idle-mode:
+    $ref: "#/$defs/dai-tdm-idle-mode"
+    description: Receive direction idle slot mode. Optional. Identical to TX
+      idle slot mode.
+
+  dai-tdm-slot-tx-idle-mask:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Transmit direction idle slot mask. Optional. 1 represents
+      an idle slot.
+
+  dai-tdm-slot-rx-idle-mask:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Receive direction idle slot mask. Optional. Identical to
+      TX mask.

-- 
2.52.0