linux-kernel - [PATCH v7 3/7] mux: add help text for MULTIPLEXER config option

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Message-Id: <20260128-rz-sdio-mux-v7-3-92ebb6da0df8@solid-run.com>
Date: Wed, 28 Jan 2026 16:46:11 +0200
From: Josua Mayer <josua@...id-run.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>,
 Vincent Mailhol <mailhol@...nel.org>, Vinod Koul <vkoul@...nel.org>,
 Neil Armstrong <neil.armstrong@...aro.org>, Peter Rosin <peda@...ntia.se>,
 Aaro Koskinen <aaro.koskinen@....fi>,
 Andreas Kemnade <andreas@...nade.info>, Kevin Hilman <khilman@...libre.com>,
 Roger Quadros <rogerq@...nel.org>, Tony Lindgren <tony@...mide.com>,
 Janusz Krzysztofik <jmkrzyszt@...il.com>, Vignesh R <vigneshr@...com>,
 Andi Shyti <andi.shyti@...nel.org>, Ulf Hansson <ulf.hansson@...aro.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Geert Uytterhoeven <geert+renesas@...der.be>,
 Magnus Damm <magnus.damm@...il.com>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: Yazan Shhady <yazan.shhady@...id-run.com>,
 Jon Nettleton <jon@...id-run.com>,
 Mikhail Anikin <mikhail.anikin@...id-run.com>, linux-can@...r.kernel.org,
 linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-omap@...r.kernel.org, linux-i2c@...r.kernel.org,
 linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-renesas-soc@...r.kernel.org, Josua Mayer <josua@...id-run.com>
Subject: [PATCH v7 3/7] mux: add help text for MULTIPLEXER config option

Add prompt and help text for CONFIG_MULTIPLEXER to allow enabling this
option thorugh the kernel configuration without explicit "select" driver
dependencies.

Select it by default when COMPILE_TEST is set for better coverage.

Signed-off-by: Josua Mayer <josua@...id-run.com>
---
 drivers/mux/Kconfig | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mux/Kconfig b/drivers/mux/Kconfig
index c68132e38138..e31c46820bdf 100644
--- a/drivers/mux/Kconfig
+++ b/drivers/mux/Kconfig
@@ -4,7 +4,13 @@
 #
 
 config MULTIPLEXER
-	tristate
+	tristate "Generic Multiplexer Support" if COMPILE_TEST
+	help
+	  This framework is designed to abstract multiplexer handling for
+	  devices via various GPIO-, MMIO/Regmap or specific multiplexer
+	  controller chips.
+
+	  If unsure, say no.
 
 menu "Multiplexer drivers"
 	depends on MULTIPLEXER

-- 
2.43.0