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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2014 MundoReader S.L.
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* Author: Heiko Stuebner <heiko@sntech.de>
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*/
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#include <linux/slab.h>
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#include <linux/io.h>
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#include <linux/reset-controller.h>
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#include <linux/spinlock.h>
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#include "clk.h"
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struct rockchip_softrst {
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struct reset_controller_dev rcdev;
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const int *lut;
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void __iomem *reg_base;
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int num_regs;
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int num_per_reg;
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u8 flags;
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spinlock_t lock;
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};
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static int rockchip_softrst_assert(struct reset_controller_dev *rcdev,
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unsigned long id)
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{
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struct rockchip_softrst *softrst = container_of(rcdev,
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struct rockchip_softrst,
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rcdev);
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int bank, offset;
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if (softrst->lut)
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id = softrst->lut[id];
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bank = id / softrst->num_per_reg;
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offset = id % softrst->num_per_reg;
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if (softrst->flags & ROCKCHIP_SOFTRST_HIWORD_MASK) {
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writel(BIT(offset) | (BIT(offset) << 16),
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softrst->reg_base + (bank * 4));
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} else {
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unsigned long flags;
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u32 reg;
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spin_lock_irqsave(&softrst->lock, flags);
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reg = readl(softrst->reg_base + (bank * 4));
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writel(reg | BIT(offset), softrst->reg_base + (bank * 4));
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spin_unlock_irqrestore(&softrst->lock, flags);
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}
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return 0;
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}
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static int rockchip_softrst_deassert(struct reset_controller_dev *rcdev,
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unsigned long id)
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{
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struct rockchip_softrst *softrst = container_of(rcdev,
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struct rockchip_softrst,
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rcdev);
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int bank, offset;
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if (softrst->lut)
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id = softrst->lut[id];
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bank = id / softrst->num_per_reg;
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offset = id % softrst->num_per_reg;
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if (softrst->flags & ROCKCHIP_SOFTRST_HIWORD_MASK) {
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writel((BIT(offset) << 16), softrst->reg_base + (bank * 4));
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} else {
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unsigned long flags;
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u32 reg;
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spin_lock_irqsave(&softrst->lock, flags);
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reg = readl(softrst->reg_base + (bank * 4));
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writel(reg & ~BIT(offset), softrst->reg_base + (bank * 4));
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spin_unlock_irqrestore(&softrst->lock, flags);
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}
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return 0;
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}
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static const struct reset_control_ops rockchip_softrst_ops = {
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.assert = rockchip_softrst_assert,
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.deassert = rockchip_softrst_deassert,
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};
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void rockchip_register_softrst_lut(struct device_node *np,
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const int *lookup_table,
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unsigned int num_regs,
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void __iomem *base, u8 flags)
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{
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struct rockchip_softrst *softrst;
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int ret;
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softrst = kzalloc_obj(*softrst);
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if (!softrst)
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return;
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spin_lock_init(&softrst->lock);
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softrst->reg_base = base;
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softrst->lut = lookup_table;
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softrst->flags = flags;
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softrst->num_regs = num_regs;
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softrst->num_per_reg = (flags & ROCKCHIP_SOFTRST_HIWORD_MASK) ? 16
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: 32;
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softrst->rcdev.owner = THIS_MODULE;
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if (lookup_table)
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softrst->rcdev.nr_resets = num_regs;
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else
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softrst->rcdev.nr_resets = num_regs * softrst->num_per_reg;
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softrst->rcdev.ops = &rockchip_softrst_ops;
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softrst->rcdev.of_node = np;
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ret = reset_controller_register(&softrst->rcdev);
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if (ret) {
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pr_err("%s: could not register reset controller, %d\n",
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__func__, ret);
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kfree(softrst);
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}
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};
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EXPORT_SYMBOL_GPL(rockchip_register_softrst_lut);
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