cregit-Linux how code gets into the kernel

Release 4.14 arch/sparc/kernel/power.c

// SPDX-License-Identifier: GPL-2.0
/* power.c: Power management driver.
 *
 * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net)
 */

#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/reboot.h>
#include <linux/of_device.h>

#include <asm/prom.h>
#include <asm/io.h>


static void __iomem *power_reg;


static irqreturn_t power_handler(int irq, void *dev_id) { orderly_poweroff(true); /* FIXME: Check registers for status... */ return IRQ_HANDLED; }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller2195.45%375.00%
Linus Torvalds (pre-git)14.55%125.00%
Total22100.00%4100.00%


static int has_button_interrupt(unsigned int irq, struct device_node *dp) { if (irq == 0xffffffff) return 0; if (!of_find_property(dp, "button", NULL)) return 0; return 1; }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller42100.00%4100.00%
Total42100.00%4100.00%


static int power_probe(struct platform_device *op) { struct resource *res = &op->resource[0]; unsigned int irq = op->archdata.irqs[0]; power_reg = of_ioremap(res, 0, 0x4, "power"); printk(KERN_INFO "%s: Control reg at %llx\n", op->dev.of_node->name, res->start); if (has_button_interrupt(irq, op->dev.of_node)) { if (request_irq(irq, power_handler, 0, "power", NULL) < 0) printk(KERN_ERR "power: Cannot setup IRQ handler.\n"); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller6256.88%956.25%
Linus Torvalds (pre-git)3330.28%212.50%
Grant C. Likely98.26%318.75%
Linus Torvalds43.67%16.25%
Sam Ravnborg10.92%16.25%
Total109100.00%16100.00%

static const struct of_device_id power_match[] = { { .name = "power", }, {}, }; static struct platform_driver power_driver = { .probe = power_probe, .driver = { .name = "power", .of_match_table = power_match, }, }; builtin_platform_driver(power_driver);

Overall Contributors

PersonTokensPropCommitsCommitProp
David S. Miller16665.10%1546.88%
Linus Torvalds (pre-git)4718.43%26.25%
Grant C. Likely155.88%515.62%
Stephen Rothwell124.71%26.25%
Linus Torvalds41.57%13.12%
Eric Brower20.78%13.12%
Arnaldo Carvalho de Melo20.78%13.12%
Geliang Tang20.78%13.12%
Pete Zaitcev20.78%13.12%
Sam Ravnborg10.39%13.12%
Greg Kroah-Hartman10.39%13.12%
Paul Gortmaker10.39%13.12%
Total255100.00%32100.00%
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