treewide: refresh kmalloc_obj() conversionsgrafted

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>

1 files changed, 849 insertions, 0 deletions

diff --git a/arch/mips/bcm47xx/buttons.c b/arch/mips/bcm47xx/buttons.c
new file mode 100644
index 000000000..7bb338da8
--- /dev/null
+++ b/arch/mips/bcm47xx/buttons.c
@@ -0,0 +1,849 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bcm47xx_private.h"
+
+#include "linux/err.h"
+#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
+#include <linux/input-event-codes.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#include <bcm47xx_board.h>
+#include <bcm47xx.h>
+
+/**************************************************
+ * Database
+ **************************************************/
+
+struct bcm47xx_gpio_key {
+	u16 code;
+	u8 pin;
+	u8 flags;
+};
+
+#define BCM47XX_GPIO_KEY(_gpio, _code)			\
+	{						\
+		.code	= _code,			\
+		.pin	= _gpio,			\
+		.flags	= GPIO_ACTIVE_LOW,		\
+	}
+
+#define BCM47XX_GPIO_KEY_H(_gpio, _code)		\
+	{						\
+		.code	= _code,			\
+		.pin	= _gpio,			\
+		.flags	= GPIO_ACTIVE_HIGH,		\
+	}
+
+/* Asus */
+
+static const struct bcm47xx_gpio_key bcm47xx_buttons_asus_rtn10u[] __initconst = {
+	BCM47XX_GPIO_KEY(20, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(21, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key bcm47xx_buttons_asus_rtn12[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(1, KEY_RESTART),
+	BCM47XX_GPIO_KEY(4, BTN_0), /* Router mode */
+	BCM47XX_GPIO_KEY(5, BTN_1), /* Repeater mode */
+	BCM47XX_GPIO_KEY(6, BTN_2), /* AP mode */
+};
+
+static const struct bcm47xx_gpio_key bcm47xx_buttons_asus_rtn16[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_rtn66u[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(9, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl300g[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl320ge[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl330ge[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl500g[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl500gd[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl500gpv1[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_RESTART),
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl500gpv2[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RESTART),
+	BCM47XX_GPIO_KEY(3, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl500w[] __initconst = {
+	BCM47XX_GPIO_KEY_H(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY_H(7, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl520gc[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RESTART),
+	BCM47XX_GPIO_KEY(3, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl520gu[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RESTART),
+	BCM47XX_GPIO_KEY(3, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wl700ge[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_POWER), /* Hard disk power switch */
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON), /* EZSetup */
+	BCM47XX_GPIO_KEY(6, KEY_COPY), /* Copy data from USB to internal disk */
+	BCM47XX_GPIO_KEY(7, KEY_RESTART), /* Hard reset */
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_asus_wlhdd[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+/* Huawei */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_huawei_e970[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+/* Belkin */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_belkin_f7d4301[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY(8, KEY_WPS_BUTTON),
+};
+
+/* Buffalo */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_whr2_a54g54[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_whr_g125[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_whr_g54s[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY_H(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_whr_hp_g54[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(5, BTN_0), /* Router / AP mode switch */
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_wzr_g300n[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_wzr_rs_g54[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_buffalo_wzr_rs_g54hp[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+};
+
+/* Dell */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_dell_tm2300[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_RESTART),
+};
+
+/* D-Link */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_dlink_dir130[] __initconst = {
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+	BCM47XX_GPIO_KEY(7, KEY_UNKNOWN),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_dlink_dir330[] __initconst = {
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+	BCM47XX_GPIO_KEY(7, KEY_UNKNOWN),
+};
+
+/* Linksys */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e1000v1[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e1000v21[] __initconst = {
+	BCM47XX_GPIO_KEY(9, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(10, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e2000v1[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e2500v3[] __initconst = {
+	BCM47XX_GPIO_KEY(9, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(10, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e3000v1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e3200v1[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_RESTART),
+	BCM47XX_GPIO_KEY(8, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_e4200v1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt150nv1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt150nv11[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt160nv1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt160nv3[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt300n_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt300nv11[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_UNKNOWN),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt310nv1[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY(8, KEY_UNKNOWN),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt310n_v2[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt320n_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt54g3gv2[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_WIMAX),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt54g_generic[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt610nv1[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY(8, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrt610nv2[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_linksys_wrtsl54gs[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+/* Luxul */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_abr_4400_v1[] = {
+	BCM47XX_GPIO_KEY(14, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xap_310_v1[] = {
+	BCM47XX_GPIO_KEY(20, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xap_1210_v1[] = {
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xap_1230_v1[] = {
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xap_1240_v1[] = {
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xap_1500_v1[] = {
+	BCM47XX_GPIO_KEY(14, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xbr_4400_v1[] = {
+	BCM47XX_GPIO_KEY(14, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xvw_p30_v1[] = {
+	BCM47XX_GPIO_KEY(20, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xwr_600_v1[] = {
+	BCM47XX_GPIO_KEY(8, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_luxul_xwr_1750_v1[] = {
+	BCM47XX_GPIO_KEY(14, KEY_RESTART),
+};
+
+/* Microsoft */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_microsoft_nm700[] __initconst = {
+	BCM47XX_GPIO_KEY(7, KEY_RESTART),
+};
+
+/* Motorola */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_motorola_we800g[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_motorola_wr850gp[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_motorola_wr850gv2v3[] __initconst = {
+	BCM47XX_GPIO_KEY(5, KEY_RESTART),
+};
+
+/* Netgear */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_r6200_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RFKILL),
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_r6300_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wn2500rp_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(12, KEY_RESTART),
+	BCM47XX_GPIO_KEY(31, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wndr3400v1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(8, KEY_RFKILL),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wndr3400_v3[] __initconst = {
+	BCM47XX_GPIO_KEY(12, KEY_RESTART),
+	BCM47XX_GPIO_KEY(23, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wndr3700v3[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RFKILL),
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wndr4500v1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(5, KEY_RFKILL),
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wnr1000_v3[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wnr3500lv1[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wnr3500lv2[] __initconst = {
+	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+	BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(8, KEY_RFKILL),
+};
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_netgear_wnr834bv2[] __initconst = {
+	BCM47XX_GPIO_KEY(6, KEY_RESTART),
+};
+
+/* SimpleTech */
+
+static const struct bcm47xx_gpio_key
+bcm47xx_buttons_simpletech_simpleshare[] __initconst = {
+	BCM47XX_GPIO_KEY(0, KEY_RESTART),
+};
+
+/**************************************************
+ * Init
+ **************************************************/
+
+static int __init
+bcm47xx_buttons_add(const struct bcm47xx_gpio_key *buttons, int nbuttons)
+{
+	struct platform_device *pdev;
+	const struct software_node *gpio_swnode;
+	struct property_entry *p;
+	int error;
+	int i;
+
+	switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		gpio_swnode = &bcma_gpio_swnode;
+		break;
+#endif
+#ifdef CONFIG_BCM47XX_SSB
+	case BCM47XX_BUS_TYPE_SSB:
+		gpio_swnode = &ssb_gpio_swnode;
+		break;
+#endif
+	default:
+		return -ENODEV;
+	}
+
+	/* 1 node for gpio-keys device, 1 node for each button, 1 terminator */
+	const struct software_node **node_group __free(kfree) =
+		kzalloc_objs(*node_group, 1 + nbuttons + 1);
+	if (!node_group)
+		return -ENOMEM;
+
+	/* 1 code property, 1 gpio property, 1 terminator */
+	struct property_entry *props __free(kfree) =
+		kzalloc_objs(*props, nbuttons * 3);
+	if (!props)
+		return -ENOMEM;
+
+	/* 1 node for gpio-keys device, 1 node for each button */
+	struct software_node *nodes __free(kfree) =
+		kzalloc_objs(*nodes, 1 + nbuttons);
+	if (!nodes)
+		return -ENOMEM;
+
+	struct software_node_ref_args *ref_args __free(kfree) =
+		kzalloc_objs(*ref_args, nbuttons);
+	if (!ref_args)
+		return -ENOMEM;
+
+	/* gpio-keys node */
+	nodes[0].name = "bcm47xx-gpio-buttons";
+
+	p = props;
+	for (i = 0; i < nbuttons; i++) {
+		const struct bcm47xx_gpio_key *button = &buttons[i];
+		struct software_node *node = &nodes[1 + i];
+		struct software_node_ref_args *ref = &ref_args[i];
+
+		node->parent = &nodes[0];
+		node->properties = p;
+
+		*ref = SOFTWARE_NODE_REFERENCE(gpio_swnode, button->pin, button->flags);
+		*p++ = PROPERTY_ENTRY_REF("gpios", &ref_args[i]);
+		*p++ = PROPERTY_ENTRY_U32("linux,code", button->code);
+		p++;
+	}
+
+	for (i = 0; i < nbuttons + 1; i++)
+		node_group[i] = &nodes[i];
+
+	error = software_node_register_node_group(node_group);
+	if (error)
+		return error;
+
+	pdev = platform_device_register_full(&(struct platform_device_info){
+		.name = "gpio-keys",
+		.swnode = &nodes[0],
+	});
+	error = PTR_ERR_OR_ZERO(pdev);
+	if (error) {
+		software_node_unregister_node_group(node_group);
+		return error;
+	}
+
+	retain_and_null_ptr(props);
+	retain_and_null_ptr(nodes);
+	retain_and_null_ptr(ref_args);
+	return 0;
+}
+
+#define bcm47xx_add_bdata(dev_buttons)					\
+	bcm47xx_buttons_add(dev_buttons, ARRAY_SIZE(dev_buttons))
+
+int __init bcm47xx_buttons_register(void)
+{
+	enum bcm47xx_board board = bcm47xx_board_get();
+	int err;
+
+	switch (board) {
+	case BCM47XX_BOARD_ASUS_RTN10U:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_rtn10u);
+		break;
+	case BCM47XX_BOARD_ASUS_RTN12:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_rtn12);
+		break;
+	case BCM47XX_BOARD_ASUS_RTN16:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_rtn16);
+		break;
+	case BCM47XX_BOARD_ASUS_RTN66U:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_rtn66u);
+		break;
+	case BCM47XX_BOARD_ASUS_WL300G:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl300g);
+		break;
+	case BCM47XX_BOARD_ASUS_WL320GE:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl320ge);
+		break;
+	case BCM47XX_BOARD_ASUS_WL330GE:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl330ge);
+		break;
+	case BCM47XX_BOARD_ASUS_WL500G:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl500g);
+		break;
+	case BCM47XX_BOARD_ASUS_WL500GD:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl500gd);
+		break;
+	case BCM47XX_BOARD_ASUS_WL500GPV1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl500gpv1);
+		break;
+	case BCM47XX_BOARD_ASUS_WL500GPV2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl500gpv2);
+		break;
+	case BCM47XX_BOARD_ASUS_WL500W:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl500w);
+		break;
+	case BCM47XX_BOARD_ASUS_WL520GC:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl520gc);
+		break;
+	case BCM47XX_BOARD_ASUS_WL520GU:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl520gu);
+		break;
+	case BCM47XX_BOARD_ASUS_WL700GE:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wl700ge);
+		break;
+	case BCM47XX_BOARD_ASUS_WLHDD:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_asus_wlhdd);
+		break;
+
+	case BCM47XX_BOARD_BELKIN_F7D3301:
+	case BCM47XX_BOARD_BELKIN_F7D3302:
+	case BCM47XX_BOARD_BELKIN_F7D4301:
+	case BCM47XX_BOARD_BELKIN_F7D4302:
+	case BCM47XX_BOARD_BELKIN_F7D4401:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_belkin_f7d4301);
+		break;
+
+	case BCM47XX_BOARD_BUFFALO_WHR2_A54G54:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_whr2_a54g54);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WHR_G125:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_whr_g125);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WHR_G54S:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_whr_g54s);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WHR_HP_G54:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_whr_hp_g54);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WZR_G300N:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_wzr_g300n);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WZR_RS_G54:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_wzr_rs_g54);
+		break;
+	case BCM47XX_BOARD_BUFFALO_WZR_RS_G54HP:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_buffalo_wzr_rs_g54hp);
+		break;
+
+	case BCM47XX_BOARD_DELL_TM2300:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_dell_tm2300);
+		break;
+
+	case BCM47XX_BOARD_DLINK_DIR130:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_dlink_dir130);
+		break;
+	case BCM47XX_BOARD_DLINK_DIR330:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_dlink_dir330);
+		break;
+
+	case BCM47XX_BOARD_HUAWEI_E970:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_huawei_e970);
+		break;
+
+	case BCM47XX_BOARD_LINKSYS_E1000V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e1000v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E1000V21:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e1000v21);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E2000V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e2000v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E2500V3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e2500v3);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E3000V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e3000v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E3200V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e3200v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_E4200V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_e4200v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT150NV1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt150nv1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT150NV11:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt150nv11);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT160NV1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt160nv1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT160NV3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt160nv3);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT300N_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt300n_v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT300NV11:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt300nv11);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT310NV1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt310nv1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT310NV2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt310n_v2);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT320N_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt320n_v1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT54G3GV2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt54g3gv2);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0101:
+	case BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0467:
+	case BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0708:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt54g_generic);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT610NV1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt610nv1);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRT610NV2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrt610nv2);
+		break;
+	case BCM47XX_BOARD_LINKSYS_WRTSL54GS:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_linksys_wrtsl54gs);
+		break;
+
+	case BCM47XX_BOARD_LUXUL_ABR_4400_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_abr_4400_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XAP_310_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xap_310_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XAP_1210_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xap_1210_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XAP_1230_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xap_1230_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XAP_1240_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xap_1240_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XAP_1500_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xap_1500_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XBR_4400_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xbr_4400_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XVW_P30_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xvw_p30_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XWR_600_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xwr_600_v1);
+		break;
+	case BCM47XX_BOARD_LUXUL_XWR_1750_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_luxul_xwr_1750_v1);
+		break;
+
+	case BCM47XX_BOARD_MICROSOFT_MN700:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_microsoft_nm700);
+		break;
+
+	case BCM47XX_BOARD_MOTOROLA_WE800G:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_motorola_we800g);
+		break;
+	case BCM47XX_BOARD_MOTOROLA_WR850GP:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_motorola_wr850gp);
+		break;
+	case BCM47XX_BOARD_MOTOROLA_WR850GV2V3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_motorola_wr850gv2v3);
+		break;
+
+	case BCM47XX_BOARD_NETGEAR_R6200_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_r6200_v1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_R6300_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_r6300_v1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WN2500RP_V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wn2500rp_v1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNDR3400V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wndr3400v1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wndr3400_v3);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNDR3700V3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wndr3700v3);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wndr4500v1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wnr1000_v3);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNR3500L:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wnr3500lv1);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNR3500L_V2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wnr3500lv2);
+		break;
+	case BCM47XX_BOARD_NETGEAR_WNR834BV2:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_netgear_wnr834bv2);
+		break;
+
+	case BCM47XX_BOARD_SIMPLETECH_SIMPLESHARE:
+		err = bcm47xx_add_bdata(bcm47xx_buttons_simpletech_simpleshare);
+		break;
+
+	default:
+		pr_debug("No buttons configuration found for this device\n");
+		return -ENOTSUPP;
+	}
+
+	if (err)
+		return err;
+
+	return 0;
+}