drivers/reset: remove unused reset-rockchip driver

Change-Id: Iff3e3b101ad04568005aa399ac8c79250d7e0970
Signed-off-by: Tao Huang <huangtao@rock-chips.com>

1 files changed, 0 insertions, 174 deletions

diff --git a/drivers/reset/reset-rockchip.c b/drivers/reset/reset-rockchip.c
deleted file mode 100644
index fa50610ea618..000000000000
--- a/drivers/reset/reset-rockchip.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (c) 2014 ROCKCHIP, Inc.
- * Author: Dai Kelin <dkl@rock-chips.com>
- * Based on codes from Heiko Stuebner <heiko@sntech.de>.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/reset-controller.h>
-#include <linux/spinlock.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-
-#include <dt-bindings/clock/rockchip.h>
-
-
-struct rockchip_reset {
-	struct reset_controller_dev	rcdev;
-	void __iomem			*reg_base;
-	int				num_regs;
-	int				num_per_reg;
-	u8				flags;
-	spinlock_t			lock;
-};
-
-static int rockchip_reset_assert(struct reset_controller_dev *rcdev,
-			      unsigned long id)
-{
-	struct rockchip_reset *reset = container_of(rcdev,
-						     struct rockchip_reset,
-						     rcdev);
-	int bank = id / reset->num_per_reg;
-	int offset = id % reset->num_per_reg;
-
-	if (reset->flags & ROCKCHIP_RESET_HIWORD_MASK) {
-		writel(BIT(offset) | (BIT(offset) << 16),
-		       reset->reg_base + (bank * 4));
-	} else {
-		unsigned long flags;
-		u32 reg;
-
-		spin_lock_irqsave(&reset->lock, flags);
-
-		reg = readl(reset->reg_base + (bank * 4));
-		writel(reg | BIT(offset), reset->reg_base + (bank * 4));
-
-		spin_unlock_irqrestore(&reset->lock, flags);
-	}
-
-	return 0;
-}
-
-static int rockchip_reset_deassert(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	struct rockchip_reset *reset = container_of(rcdev,
-						     struct rockchip_reset,
-						     rcdev);
-	int bank = id / reset->num_per_reg;
-	int offset = id % reset->num_per_reg;
-
-	if (reset->flags & ROCKCHIP_RESET_HIWORD_MASK) {
-		writel((BIT(offset) << 16), reset->reg_base + (bank * 4));
-	} else {
-		unsigned long flags;
-		u32 reg;
-
-		spin_lock_irqsave(&reset->lock, flags);
-
-		reg = readl(reset->reg_base + (bank * 4));
-		writel(reg & ~BIT(offset), reset->reg_base + (bank * 4));
-
-		spin_unlock_irqrestore(&reset->lock, flags);
-	}
-
-	return 0;
-}
-
-static struct reset_control_ops rockchip_reset_ops = {
-	.assert		= rockchip_reset_assert,
-	.deassert	= rockchip_reset_deassert,
-};
-
-static int rockchip_register_reset(struct device_node *np,
-				      unsigned int num_regs,
-				      void __iomem *base, u8 flags)
-{
-	struct rockchip_reset *reset;
-	int ret;
-
-	reset = kzalloc(sizeof(*reset), GFP_KERNEL);
-	if (!reset)
-		return -ENOMEM;
-
-	reset->flags = flags;
-	reset->reg_base = base;
-	reset->num_regs = num_regs;
-	reset->num_per_reg = (flags & ROCKCHIP_RESET_HIWORD_MASK) ? 16 : 32;
-	spin_lock_init(&reset->lock);
-
-	reset->rcdev.owner = THIS_MODULE;
-	reset->rcdev.nr_resets =  num_regs * reset->num_per_reg;
-	reset->rcdev.ops = &rockchip_reset_ops;
-	reset->rcdev.of_node = np;
-	ret = reset_controller_register(&reset->rcdev);
-	if (ret) {
-		pr_err("%s: could not register reset controller, %d\n",
-		       __func__, ret);
-		kfree(reset);
-		return ret;
-	}
-
-	return 0;
-};
-
-static int __init rockchip_reset_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	void __iomem *base;
-	resource_size_t size;
-	u32 flag = 0;
-
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(base)) {
-		pr_err("%s: ioremap err\n", __func__);
-		return PTR_ERR(base);
-	}
-
-	size = resource_size(res);
-	if (size%4) {
-		pr_err("%s: wrong size value\n", __func__);
-		return -EINVAL;
-	}
-
-	of_property_read_u32(pdev->dev.of_node, "rockchip,reset-flag", &flag);
-
-	return rockchip_register_reset(pdev->dev.of_node, size/4, base, flag);
-}
-
-static const struct of_device_id rockchip_reset_dt_ids[]  = {
-	{ .compatible = "rockchip,reset", },
-	{ /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, rockchip_reset_dt_ids);
-
-static struct platform_driver rockchip_reset_driver = {
-	.driver = {
-		.name           = "rockchip-reset",
-		.owner          = THIS_MODULE,
-		.of_match_table = rockchip_reset_dt_ids,
-	},
-};
-
-static int __init rockchip_reset_module_init(void)
-{
-	return platform_driver_probe(&rockchip_reset_driver,
-				     rockchip_reset_probe);
-}
-
-subsys_initcall_sync(rockchip_reset_module_init);