cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/sysdev/rtc_cmos_setup.c

/*
 * Setup code for PC-style Real-Time Clock.
 *
 * Author: Wade Farnsworth <wfarnsworth@mvista.com>
 *
 * 2007 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */

#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mc146818rtc.h>

#include <asm/prom.h>


static int __init add_rtc(void) { struct device_node *np; struct platform_device *pd; struct resource res[2]; unsigned int num_res = 1; int ret; memset(&res, 0, sizeof(res)); np = of_find_compatible_node(NULL, NULL, "pnpPNP,b00"); if (!np) return -ENODEV; ret = of_address_to_resource(np, 0, &res[0]); of_node_put(np); if (ret) return ret; /* * RTC_PORT(x) is hardcoded in asm/mc146818rtc.h. Verify that the * address provided by the device node matches. */ if (res[0].start != RTC_PORT(0)) return -EINVAL; np = of_find_compatible_node(NULL, NULL, "chrp,iic"); if (!np) np = of_find_compatible_node(NULL, NULL, "pnpPNP,000"); if (np) { of_node_put(np); /* * Use a fixed interrupt value of 8 since on PPC if we are * using this its off an i8259 which we ensure has interrupt * numbers 0..15. */ res[1].start = 8; res[1].end = 8; res[1].flags = IORESOURCE_IRQ; num_res++; } pd = platform_device_register_simple("rtc_cmos", -1, &res[0], num_res); return PTR_ERR_OR_ZERO(pd); }

Contributors

PersonTokensPropCommitsCommitProp
Wade Farnsworth10550.72%125.00%
Kumar Gala5225.12%125.00%
Anton Vorontsov4923.67%125.00%
Rusty Russell10.48%125.00%
Total207100.00%4100.00%

fs_initcall(add_rtc); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Wade Farnsworth12653.39%116.67%
Kumar Gala5222.03%116.67%
Anton Vorontsov4920.76%116.67%
Adrian Bunk52.12%116.67%
Paul Gortmaker31.27%116.67%
Rusty Russell10.42%116.67%
Total236100.00%6100.00%
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