Commit 9483b961 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Sebastian Reichel
Browse files

power/reset: remove zte zx driver



The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent 79bcb02b
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@@ -258,13 +258,6 @@ config POWER_RESET_RMOBILE
	help
	  Reboot support for Renesas R-Mobile and SH-Mobile SoCs.

config POWER_RESET_ZX
	tristate "ZTE SoCs reset driver"
	depends on ARCH_ZX || COMPILE_TEST
	depends on HAS_IOMEM
	help
	  Reboot support for ZTE SoCs.

config REBOOT_MODE
	tristate

+0 −1
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ obj-$(CONFIG_POWER_RESET_KEYSTONE) += keystone-reset.o
obj-$(CONFIG_POWER_RESET_SYSCON) += syscon-reboot.o
obj-$(CONFIG_POWER_RESET_SYSCON_POWEROFF) += syscon-poweroff.o
obj-$(CONFIG_POWER_RESET_RMOBILE) += rmobile-reset.o
obj-$(CONFIG_POWER_RESET_ZX) += zx-reboot.o
obj-$(CONFIG_REBOOT_MODE) += reboot-mode.o
obj-$(CONFIG_SYSCON_REBOOT_MODE) += syscon-reboot-mode.o
obj-$(CONFIG_POWER_RESET_SC27XX) += sc27xx-poweroff.o

drivers/power/reset/zx-reboot.c

deleted100644 → 0
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// SPDX-License-Identifier: GPL-2.0-only
/*
 * ZTE zx296702 SoC reset code
 *
 * Copyright (c) 2015 Linaro Ltd.
 *
 * Author: Jun Nie <jun.nie@linaro.org>
 */

#include <linux/delay.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>

static void __iomem *base;
static void __iomem *pcu_base;

static int zx_restart_handler(struct notifier_block *this,
			      unsigned long mode, void *cmd)
{
	writel_relaxed(1, base + 0xb0);
	writel_relaxed(1, pcu_base + 0x34);

	mdelay(50);
	pr_emerg("Unable to restart system\n");

	return NOTIFY_DONE;
}

static struct notifier_block zx_restart_nb = {
	.notifier_call = zx_restart_handler,
	.priority = 128,
};

static int zx_reboot_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	int err;

	base = of_iomap(np, 0);
	if (!base) {
		WARN(1, "failed to map base address");
		return -ENODEV;
	}

	np = of_find_compatible_node(NULL, NULL, "zte,zx296702-pcu");
	pcu_base = of_iomap(np, 0);
	of_node_put(np);
	if (!pcu_base) {
		iounmap(base);
		WARN(1, "failed to map pcu_base address");
		return -ENODEV;
	}

	err = register_restart_handler(&zx_restart_nb);
	if (err) {
		iounmap(base);
		iounmap(pcu_base);
		dev_err(&pdev->dev, "Register restart handler failed(err=%d)\n",
			err);
	}

	return err;
}

static const struct of_device_id zx_reboot_of_match[] = {
	{ .compatible = "zte,sysctrl" },
	{}
};
MODULE_DEVICE_TABLE(of, zx_reboot_of_match);

static struct platform_driver zx_reboot_driver = {
	.probe = zx_reboot_probe,
	.driver = {
		.name = "zx-reboot",
		.of_match_table = zx_reboot_of_match,
	},
};
module_platform_driver(zx_reboot_driver);

MODULE_DESCRIPTION("ZTE SoCs reset driver");
MODULE_AUTHOR("Jun Nie <jun.nie@linaro.org>");
MODULE_LICENSE("GPL v2");