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Wed, 25 Mar 2026 16:29:57 -0700 (PDT) Received: from google.com ([2a00:79e0:2ebe:8:b7b4:352d:eb23:66e5]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12aa7274231sm1355207c88.8.2026.03.25.16.29.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 16:29:57 -0700 (PDT) Date: Wed, 25 Mar 2026 16:29:54 -0700 From: Dmitry Torokhov To: Thierry Reding Cc: Marc Dietrich , Krzysztof Kozlowski , Rob Herring , Conor Dooley , Jonathan Hunter , Bartosz Golaszewski , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] ARM: tegra: paz00: configure WiFi rfkill switch through device tree Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline As of d64c732dfc9e ("net: rfkill: gpio: add DT support") rfkill-gpio device can be instantiated via device tree. Add the declaration there and drop board-paz00.c file and relevant Makefile fragments. Tested-by: Marc Dietrich Signed-off-by: Dmitry Torokhov --- V2: - added Marc's Tested-by V1: - https://lore.kernel.org/r/aY_BpRQmLdqOOW2K@google.com arch/arm/boot/dts/nvidia/tegra20-paz00.dts | 8 ++++ arch/arm/mach-tegra/Makefile | 2 - arch/arm/mach-tegra/board-paz00.c | 56 ---------------------- arch/arm/mach-tegra/board.h | 2 - arch/arm/mach-tegra/tegra.c | 4 -- 5 files changed, 8 insertions(+), 64 deletions(-) diff --git a/arch/arm/boot/dts/nvidia/tegra20-paz00.dts b/arch/arm/boot/dts/nvidia/tegra20-paz00.dts index 1408e1e00759..d1093ad569e6 100644 --- a/arch/arm/boot/dts/nvidia/tegra20-paz00.dts +++ b/arch/arm/boot/dts/nvidia/tegra20-paz00.dts @@ -706,6 +706,14 @@ vdd_pnl_reg: regulator-3v0 { enable-active-high; }; + rfkill { + compatible = "rfkill-gpio"; + label = "wifi_rfkill"; + radio-type = "wlan"; + reset-gpios = <&gpio TEGRA_GPIO(D, 1) GPIO_ACTIVE_HIGH>; + shutdown-gpios = <&gpio TEGRA_GPIO(K, 5) GPIO_ACTIVE_HIGH>; + }; + sound { compatible = "nvidia,tegra-audio-alc5632-paz00", "nvidia,tegra-audio-alc5632"; diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index a2bb55bc0081..9e3abb14fbc1 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -15,5 +15,3 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_ARCH_TEGRA_114_SOC) += pm-tegra30.o obj-$(CONFIG_ARCH_TEGRA_124_SOC) += pm-tegra30.o - -obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-paz00.o diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c deleted file mode 100644 index 3ec810b6f1a7..000000000000 --- a/arch/arm/mach-tegra/board-paz00.c +++ /dev/null @@ -1,56 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * arch/arm/mach-tegra/board-paz00.c - * - * Copyright (C) 2011 Marc Dietrich - * - * Based on board-harmony.c - * Copyright (C) 2010 Google, Inc. - */ - -#include -#include -#include -#include -#include -#include - -#include "board.h" - -static const struct software_node tegra_gpiochip_node = { - .name = "tegra-gpio", -}; - -static const struct property_entry wifi_rfkill_prop[] __initconst = { - PROPERTY_ENTRY_STRING("name", "wifi_rfkill"), - PROPERTY_ENTRY_STRING("type", "wlan"), - PROPERTY_ENTRY_GPIO("reset-gpios", - &tegra_gpiochip_node, 25, GPIO_ACTIVE_HIGH), - PROPERTY_ENTRY_GPIO("shutdown-gpios", - &tegra_gpiochip_node, 85, GPIO_ACTIVE_HIGH), - { } -}; - -static const struct platform_device_info wifi_rfkill_info __initconst = { - .name = "rfkill_gpio", - .id = PLATFORM_DEVID_NONE, - .properties = wifi_rfkill_prop, -}; - -void __init tegra_paz00_wifikill_init(void) -{ - struct platform_device *pd; - int err; - - err = software_node_register(&tegra_gpiochip_node); - if (err) { - pr_err("failed to register %s node: %d\n", - tegra_gpiochip_node.name, err); - return; - } - - pd = platform_device_register_full(&wifi_rfkill_info); - err = PTR_ERR_OR_ZERO(pd); - if (err) - pr_err("failed to register WiFi rfkill device: %d\n", err); -} diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h index 7b3ef0dc9be1..86c3ea0d6b30 100644 --- a/arch/arm/mach-tegra/board.h +++ b/arch/arm/mach-tegra/board.h @@ -19,6 +19,4 @@ void __init tegra_map_common_io(void); void __init tegra_init_irq(void); -void __init tegra_paz00_wifikill_init(void); - #endif diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c index 9ef1dfa7b926..f324a7e491d8 100644 --- a/arch/arm/mach-tegra/tegra.c +++ b/arch/arm/mach-tegra/tegra.c @@ -83,10 +83,6 @@ static void __init tegra_dt_init(void) static void __init tegra_dt_init_late(void) { - if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) && - of_machine_is_compatible("compal,paz00")) - tegra_paz00_wifikill_init(); - if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) && of_machine_is_compatible("nvidia,tegra20")) platform_device_register_simple("tegra20-cpufreq", -1, NULL, 0); -- 2.53.0.1018.g2bb0e51243-goog -- Dmitry