mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-18 03:23:53 -04:00
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>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Aspeed 24XX/25XX I2C Interrupt Controller.
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*
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* Copyright (C) 2012-2017 ASPEED Technology Inc.
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* Copyright 2017 IBM Corporation
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* Copyright 2017 Google, Inc.
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*/
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#include <linux/irq.h>
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#include <linux/irqchip.h>
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#include <linux/irqchip/chained_irq.h>
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#include <linux/irqdomain.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/io.h>
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#define ASPEED_I2C_IC_NUM_BUS 14
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struct aspeed_i2c_ic {
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void __iomem *base;
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int parent_irq;
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struct irq_domain *irq_domain;
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};
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/*
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* The aspeed chip provides a single hardware interrupt for all of the I2C
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* busses, so we use a dummy interrupt chip to translate this single interrupt
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* into multiple interrupts, each associated with a single I2C bus.
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*/
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static void aspeed_i2c_ic_irq_handler(struct irq_desc *desc)
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{
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struct aspeed_i2c_ic *i2c_ic = irq_desc_get_handler_data(desc);
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struct irq_chip *chip = irq_desc_get_chip(desc);
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unsigned long bit, status;
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chained_irq_enter(chip, desc);
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status = readl(i2c_ic->base);
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for_each_set_bit(bit, &status, ASPEED_I2C_IC_NUM_BUS)
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generic_handle_domain_irq(i2c_ic->irq_domain, bit);
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chained_irq_exit(chip, desc);
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}
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/*
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* Set simple handler and mark IRQ as valid. Nothing interesting to do here
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* since we are using a dummy interrupt chip.
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*/
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static int aspeed_i2c_ic_map_irq_domain(struct irq_domain *domain,
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unsigned int irq, irq_hw_number_t hwirq)
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{
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irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq);
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irq_set_chip_data(irq, domain->host_data);
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return 0;
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}
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static const struct irq_domain_ops aspeed_i2c_ic_irq_domain_ops = {
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.map = aspeed_i2c_ic_map_irq_domain,
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};
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static int __init aspeed_i2c_ic_of_init(struct device_node *node,
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struct device_node *parent)
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{
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struct aspeed_i2c_ic *i2c_ic;
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int ret = 0;
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i2c_ic = kzalloc_obj(*i2c_ic);
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if (!i2c_ic)
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return -ENOMEM;
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i2c_ic->base = of_iomap(node, 0);
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if (!i2c_ic->base) {
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ret = -ENOMEM;
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goto err_free_ic;
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}
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i2c_ic->parent_irq = irq_of_parse_and_map(node, 0);
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if (!i2c_ic->parent_irq) {
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ret = -EINVAL;
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goto err_iounmap;
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}
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i2c_ic->irq_domain = irq_domain_create_linear(of_fwnode_handle(node), ASPEED_I2C_IC_NUM_BUS,
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&aspeed_i2c_ic_irq_domain_ops,
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NULL);
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if (!i2c_ic->irq_domain) {
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ret = -ENOMEM;
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goto err_iounmap;
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}
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i2c_ic->irq_domain->name = "aspeed-i2c-domain";
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irq_set_chained_handler_and_data(i2c_ic->parent_irq,
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aspeed_i2c_ic_irq_handler, i2c_ic);
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pr_info("i2c controller registered, irq %d\n", i2c_ic->parent_irq);
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return 0;
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err_iounmap:
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iounmap(i2c_ic->base);
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err_free_ic:
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kfree(i2c_ic);
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return ret;
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}
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IRQCHIP_DECLARE(ast2400_i2c_ic, "aspeed,ast2400-i2c-ic", aspeed_i2c_ic_of_init);
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IRQCHIP_DECLARE(ast2500_i2c_ic, "aspeed,ast2500-i2c-ic", aspeed_i2c_ic_of_init);
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