linux-kernel - [PATCH 8/9 RFC] wifi: ath12k: Add support for disabling rfkill via devicetree

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Message-ID: <20250714173554.14223-9-daleyo@gmail.com>
Date: Mon, 14 Jul 2025 18:35:44 +0100
From: Dale Whinham <daleyo@...il.com>
To: Jeff Johnson <jjohnson@...nel.org>
Cc: Jérôme de Bretagne <jerome.debretagne@...il.com>,
	Dale Whinham <daleyo@...il.com>,
	linux-wireless@...r.kernel.org,
	ath12k@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 8/9 RFC] wifi: ath12k: Add support for disabling rfkill via devicetree

Some devices (e.g. Microsoft Surface Pro 11) indicate that the rfkill
feature should be disabled by means of an ACPI bitflag.

If ACPI is not being used (i.e. booting using a devicetree) then this
property will not be read and therefore rfkill may be enabled and
the ath12k will be hard-blocked with no way to disable it.

Add a devicetree property that allows us to disable the rfkill feature.

Tested-by: Jérôme de Bretagne <jerome.debretagne@...il.com>
Signed-off-by: Dale Whinham <daleyo@...il.com>
---
 drivers/net/wireless/ath/ath12k/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 0b2dec081c6e..42a1d384457b 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -43,6 +43,9 @@ static int ath12k_core_rfkill_config(struct ath12k_base *ab)
 	if (ath12k_acpi_get_disable_rfkill(ab))
 		return 0;
 
+	if (of_property_read_bool(ab->dev->of_node, "disable-rfkill"))
+		return 0;
+
 	for (i = 0; i < ab->num_radios; i++) {
 		ar = ab->pdevs[i].ar;
 
-- 
2.50.1