Thread (19 messages) 19 messages, 3 authors, 2026-01-16

Re: [PATCH v3 4/4] mux: gpio-mux: add adi,adg2404 support

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2026-01-16 08:34:44
Also in: lkml

On 16/01/2026 09:32, Krzysztof Kozlowski wrote:
On Thu, Jan 15, 2026 at 02:18:22PM +0200, Antoniu Miclaus wrote:
quoted
Add adi,adg2404 to the compatible list. The ADG2404 is a 4:1 analog
multiplexer that benefits from the enable GPIO support to prevent
glitches during channel transitions.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
changes in v3:
 * integrate with gpio-mux driver instead of standalone adg2404 driver
---
 drivers/mux/gpio.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/mux/gpio.c b/drivers/mux/gpio.c
index 93487483e81f..bd8f0c617dd6 100644
--- a/drivers/mux/gpio.c
+++ b/drivers/mux/gpio.c
@@ -59,6 +59,7 @@ static const struct mux_control_ops mux_gpio_ops = {
 
 static const struct of_device_id mux_gpio_dt_ids[] = {
 	{ .compatible = "gpio-mux", },
+	{ .compatible = "adi,adg2404", },
Why do you need the compatible? I do not understand this patchset. You
are saying you integrate it into gpio-mux, but what you did is to
duplicate the compatible and binding.

Half of your patches are not necessary, you only needed to add
enable-gpios to gpio-mux with argument that ADG2404 can use such binding
(in complete/full/proper way).
... and Rob at v2 asked already that...

Best regards,
Krzysztof
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