From: Josua Mayer <josua@solid-run.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>,
Vincent Mailhol <mailhol@kernel.org>,
Vinod Koul <vkoul@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Peter Rosin <peda@axentia.se>,
Aaro Koskinen <aaro.koskinen@iki.fi>,
Andreas Kemnade <andreas@kemnade.info>,
Kevin Hilman <khilman@baylibre.com>,
Roger Quadros <rogerq@kernel.org>,
Tony Lindgren <tony@atomide.com>,
Janusz Krzysztofik <jmkrzyszt@gmail.com>,
Vignesh R <vigneshr@ti.com>, Andi Shyti <andi.shyti@kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Yazan Shhady <yazan.shhady@solid-run.com>,
Jon Nettleton <jon@solid-run.com>,
Mikhail Anikin <mikhail.anikin@solid-run.com>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
"linux-phy@lists.infradead.org" <linux-phy@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-renesas-soc@vger.kernel.org"
<linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH v8 3/7] mux: add help text for MULTIPLEXER config option
Date: Sun, 8 Feb 2026 15:16:36 +0000 [thread overview]
Message-ID: <b7dcb374-b79c-4e9f-ac30-2f507127cfb3@solid-run.com> (raw)
In-Reply-To: <20260203-rz-sdio-mux-v8-3-024ea405863e@solid-run.com>
On 03/02/2026 15:01, Josua Mayer wrote:
> 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@solid-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
This didn't do what I thought it would.
It was my intention to allow enabling this through menuconfig / .config.
With the syntax above menuconfig shows:
│ Symbol: MULTIPLEXER [=n]
│ Type : tristate
│ Defined at drivers/mux/Kconfig:6
│ Prompt: Generic Multiplexer Support
│ Visible if: COMPILE_TEST [=n]
This means it cannot be selected.
Instead I (think I) should use
default m if COMPILE_TEST
Since my patch-set broke x86_64 allmodconfig and failed merge into
linux-next,
this presents an opportunity to change the above as well with v9.
> + 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
>
next prev parent reply other threads:[~2026-02-08 15:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-03 13:01 [PATCH v8 0/7] mmc: host: renesas_sdhi_core: support configuring an optional sdio mux Josua Mayer
2026-02-03 13:01 ` [PATCH v8 1/7] phy: can-transceiver: rename temporary helper function to avoid conflict Josua Mayer
2026-02-04 15:18 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 2/7] mux: Add helper functions for getting optional and selected mux-state Josua Mayer
2026-02-03 15:35 ` Josua Mayer
2026-02-04 14:21 ` Ulf Hansson
2026-02-04 15:19 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 3/7] mux: add help text for MULTIPLEXER config option Josua Mayer
2026-02-04 15:19 ` Wolfram Sang
2026-02-08 15:16 ` Josua Mayer [this message]
2026-02-09 8:06 ` Geert Uytterhoeven
2026-02-09 10:12 ` Josua Mayer
2026-02-09 10:17 ` Geert Uytterhoeven
2026-02-09 10:47 ` Josua Mayer
2026-02-09 11:03 ` Geert Uytterhoeven
2026-02-03 13:01 ` [PATCH v8 4/7] phy: can-transceiver: drop temporary helper getting optional mux-state Josua Mayer
2026-02-04 15:19 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 5/7] i2c: omap: switch to new generic helper for getting selected mux-state Josua Mayer
2026-02-04 15:20 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 6/7] dt-bindings: mmc: renesas,sdhi: Add mux-states property Josua Mayer
2026-02-04 15:20 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 7/7] mmc: host: renesas_sdhi_core: support selecting an optional mux Josua Mayer
2026-02-04 15:20 ` Wolfram Sang
2026-02-04 15:47 ` Wolfram Sang
2026-02-04 15:33 ` [PATCH v8 0/7] mmc: host: renesas_sdhi_core: support configuring an optional sdio mux Ulf Hansson
2026-02-12 10:54 ` Ulf Hansson
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