cregit-Linux how code gets into the kernel

Release 4.14 drivers/rtc/rtc-tile.c

Directory: drivers/rtc
/*
 * Copyright 2011 Tilera Corporation. All Rights Reserved.
 *
 *   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, version 2.
 *
 *   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, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 *
 * Tilera-specific RTC driver.
 */

#include <linux/module.h>
#include <linux/device.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>

/* Platform device pointer. */

static struct platform_device *tile_rtc_platform_device;

/*
 * RTC read routine.  Gets time info from RTC chip via hypervisor syscall.
 */

static int read_rtc_time(struct device *dev, struct rtc_time *tm) { HV_RTCTime hvtm = hv_get_rtc(); tm->tm_sec = hvtm.tm_sec; tm->tm_min = hvtm.tm_min; tm->tm_hour = hvtm.tm_hour; tm->tm_mday = hvtm.tm_mday; tm->tm_mon = hvtm.tm_mon; tm->tm_year = hvtm.tm_year; tm->tm_wday = 0; tm->tm_yday = 0; tm->tm_isdst = 0; if (rtc_valid_tm(tm) < 0) dev_warn(dev, "Read invalid date/time from RTC\n"); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf107100.00%1100.00%
Total107100.00%1100.00%

/* * RTC write routine. Sends time info to hypervisor via syscall, to be * written to RTC chip. */
static int set_rtc_time(struct device *dev, struct rtc_time *tm) { HV_RTCTime hvtm; hvtm.tm_sec = tm->tm_sec; hvtm.tm_min = tm->tm_min; hvtm.tm_hour = tm->tm_hour; hvtm.tm_mday = tm->tm_mday; hvtm.tm_mon = tm->tm_mon; hvtm.tm_year = tm->tm_year; hv_set_rtc(hvtm); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf75100.00%1100.00%
Total75100.00%1100.00%

/* * RTC read/write ops. */ static const struct rtc_class_ops tile_rtc_ops = { .read_time = read_rtc_time, .set_time = set_rtc_time, }; /* * Device probe routine. */
static int tile_rtc_probe(struct platform_device *dev) { struct rtc_device *rtc; rtc = devm_rtc_device_register(&dev->dev, "tile", &tile_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); platform_set_drvdata(dev, rtc); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf5394.64%150.00%
Jingoo Han35.36%150.00%
Total56100.00%2100.00%

static struct platform_driver tile_rtc_platform_driver = { .driver = { .name = "rtc-tile", }, .probe = tile_rtc_probe, }; /* * Driver init routine. */
static int __init tile_rtc_driver_init(void) { int err; err = platform_driver_register(&tile_rtc_platform_driver); if (err) return err; tile_rtc_platform_device = platform_device_alloc("rtc-tile", 0); if (tile_rtc_platform_device == NULL) { err = -ENOMEM; goto exit_driver_unregister; } err = platform_device_add(tile_rtc_platform_device); if (err) goto exit_device_put; return 0; exit_device_put: platform_device_put(tile_rtc_platform_device); exit_driver_unregister: platform_driver_unregister(&tile_rtc_platform_driver); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf87100.00%1100.00%
Total87100.00%1100.00%

/* * Driver cleanup routine. */
static void __exit tile_rtc_driver_exit(void) { platform_device_unregister(tile_rtc_platform_device); platform_driver_unregister(&tile_rtc_platform_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf1575.00%150.00%
Wei Yongjun525.00%150.00%
Total20100.00%2100.00%

module_init(tile_rtc_driver_init); module_exit(tile_rtc_driver_exit); MODULE_DESCRIPTION("Tilera-specific Real Time Clock Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rtc-tile");

Overall Contributors

PersonTokensPropCommitsCommitProp
Chris Metcalf42898.17%133.33%
Wei Yongjun51.15%133.33%
Jingoo Han30.69%133.33%
Total436100.00%3100.00%
Directory: drivers/rtc
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.