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ARM: tegra: paz00: Configure WiFi rfkill switch through device tree

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As of d64c732dfc ("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 <marvin24@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Torokhov
2026-03-25 16:29:54 -07:00
committed by Thierry Reding
parent 464aac3a99
commit ce74a6c6d8
5 changed files with 8 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/boot/dts/nvidia/tegra20-paz00.dts
View File

@@ -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";

2
arch/arm/mach-tegra/Makefile
View File

@@ -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

56
arch/arm/mach-tegra/board-paz00.c
View File

@@ -1,56 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* arch/arm/mach-tegra/board-paz00.c
*
* Copyright (C) 2011 Marc Dietrich <marvin24@gmx.de>
*
* Based on board-harmony.c
* Copyright (C) 2010 Google, Inc.
*/
#include <linux/err.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/property.h>
#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);
}

2
arch/arm/mach-tegra/board.h
View File

@@ -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

4
arch/arm/mach-tegra/tegra.c
View File

@@ -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);