/* * Watchdog driver for CSR SiRFprimaII and SiRFatlasVI * * Copyright (c) 2013 Cambridge Silicon Radio Limited, a CSR plc group company. * * Licensed under GPLv2 or later. */ #include #include #include #include #include #include #include #define CLOCK_FREQ 1000000 #define SIRFSOC_TIMER_COUNTER_LO 0x0000 #define SIRFSOC_TIMER_MATCH_0 0x0008 #define SIRFSOC_TIMER_INT_EN 0x0024 #define SIRFSOC_TIMER_WATCHDOG_EN 0x0028 #define SIRFSOC_TIMER_LATCH 0x0030 #define SIRFSOC_TIMER_LATCHED_LO 0x0034 #define SIRFSOC_TIMER_WDT_INDEX 5 #define SIRFSOC_WDT_MIN_TIMEOUT 30 /* 30 secs */ #define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */ #define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */ static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT; static bool nowayout = WATCHDOG_NOWAYOUT; module_param(timeout, uint, 0); module_param(nowayout, bool, 0); MODULE_PARM_DESC(timeout, "Default watchdog timeout (in seconds)"); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); static void __iomem *sirfsoc_wdt_base(struct watchdog_device *wdd) { return (void __iomem __force *)watchdog_get_drvdata(wdd); } static unsigned int sirfsoc_wdt_gettimeleft(struct watchdog_device *wdd) { u32 counter, match; void __iomem *wdt_base; int time_left; wdt_base = sirfsoc_wdt_base(wdd); counter = readl(wdt_base + SIRFSOC_TIMER_COUNTER_LO); match = readl(wdt_base + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); time_left = match - counter; return time_left / CLOCK_FREQ; } static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd) { u32 counter, timeout_ticks; void __iomem *wdt_base; timeout_ticks = wdd->timeout * CLOCK_FREQ; wdt_base = sirfsoc_wdt_base(wdd); /* Enable the latch before reading the LATCH_LO register */ writel(1, wdt_base + SIRFSOC_TIMER_LATCH); /* Set the TO value */ counter = readl(wdt_base + SIRFSOC_TIMER_LATCHED_LO); counter += timeout_ticks; writel(counter, wdt_base + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); return 0; } static int sirfsoc_wdt_enable(struct watchdog_device *wdd) { void __iomem *wdt_base = sirfsoc_wdt_base(wdd); sirfsoc_wdt_updatetimeout(wdd); /* * NOTE: If interrupt is not enabled * then WD-Reset doesn't get generated at all. */ writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) | (1 << SIRFSOC_TIMER_WDT_INDEX), wdt_base + SIRFSOC_TIMER_INT_EN); writel(1, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); return 0; } static int sirfsoc_wdt_disable(struct watchdog_device *wdd) { void __iomem *wdt_base = sirfsoc_wdt_base(wdd); writel(0, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) & (~(1 << SIRFSOC_TIMER_WDT_INDEX)), wdt_base + SIRFSOC_TIMER_INT_EN); return 0; } static int sirfsoc_wdt_settimeout(struct watchdog_device *wdd, unsigned int to) { wdd->timeout = to; sirfsoc_wdt_updatetimeout(wdd); return 0; } #define OPTIONS (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE) static const struct watchdog_info sirfsoc_wdt_ident = { .options = OPTIONS, .firmware_version = 0, .identity = "SiRFSOC Watchdog", }; static struct watchdog_ops sirfsoc_wdt_ops = { .owner = THIS_MODULE, .start = sirfsoc_wdt_enable, .stop = sirfsoc_wdt_disable, .get_timeleft = sirfsoc_wdt_gettimeleft, .ping = sirfsoc_wdt_updatetimeout, .set_timeout = sirfsoc_wdt_settimeout, }; static struct watchdog_device sirfsoc_wdd = { .info = &sirfsoc_wdt_ident, .ops = &sirfsoc_wdt_ops, .timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT, .min_timeout = SIRFSOC_WDT_MIN_TIMEOUT, .max_timeout = SIRFSOC_WDT_MAX_TIMEOUT, }; static int sirfsoc_wdt_probe(struct platform_device *pdev) { struct resource *res; int ret; void __iomem *base; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(base)) return PTR_ERR(base); watchdog_set_drvdata(&sirfsoc_wdd, (__force void *)base); watchdog_init_timeout(&sirfsoc_wdd, timeout, &pdev->dev); watchdog_set_nowayout(&sirfsoc_wdd, nowayout); sirfsoc_wdd.parent = &pdev->dev; ret = watchdog_register_device(&sirfsoc_wdd); if (ret) return ret; platform_set_drvdata(pdev, &sirfsoc_wdd); return 0; } static void sirfsoc_wdt_shutdown(struct platform_device *pdev) { struct watchdog_device *wdd = platform_get_drvdata(pdev); sirfsoc_wdt_disable(wdd); } static int sirfsoc_wdt_remove(struct platform_device *pdev) { sirfsoc_wdt_shutdown(pdev); return 0; } #ifdef CONFIG_PM_SLEEP static int sirfsoc_wdt_suspend(struct device *dev) { return 0; } static int sirfsoc_wdt_resume(struct device *dev) { struct watchdog_device *wdd = dev_get_drvdata(dev); /* * NOTE: Since timer controller registers settings are saved * and restored back by the timer-prima2.c, so we need not * update WD settings except refreshing timeout. */ sirfsoc_wdt_updatetimeout(wdd); return 0; } #endif static SIMPLE_DEV_PM_OPS(sirfsoc_wdt_pm_ops, sirfsoc_wdt_suspend, sirfsoc_wdt_resume); static const struct of_device_id sirfsoc_wdt_of_match[] = { { .compatible = "sirf,prima2-tick"}, {}, }; MODULE_DEVICE_TABLE(of, sirfsoc_wdt_of_match); static struct platform_driver sirfsoc_wdt_driver = { .driver = { .name = "sirfsoc-wdt", .pm = &sirfsoc_wdt_pm_ops, .of_match_table = sirfsoc_wdt_of_match, }, .probe = sirfsoc_wdt_probe, .remove = sirfsoc_wdt_remove, .shutdown = sirfsoc_wdt_shutdown, }; module_platform_driver(sirfsoc_wdt_driver); MODULE_DESCRIPTION("SiRF SoC watchdog driver"); MODULE_AUTHOR("Xianglong Du "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:sirfsoc-wdt"); next.git/tree/include/sound/da7213.h?h=nds-private-remove&id=ba6d973f78eb62ffebb32f6ef3334fc9a3b33d22'>include/sound/da7213.h parent3eb86259eca6a363ed7bb13ecea5cda809f7b97d (diff)parenta763f78cea845c91b8d91f93dabf70c407635dc5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes and cleanups from David Miller: 1) Use rb_entry() instead of hardcoded container_of(), from Geliang Tang. 2) Use correct memory barriers in stammac driver, from Pavel Machek. 3) Fix assoc bind address handling in SCTP, from Xin Long. 4) Make the length check for UFO handling consistent between __ip_append_data() and ip_finish_output(), from Zheng Li. 5) HSI driver compatible strings were busted fro hix5hd2, from Dongpo Li. 6) Handle devm_ioremap() errors properly in cavium driver, from Arvind Yadav. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits) RDS: use rb_entry() net_sched: sch_netem: use rb_entry() net_sched: sch_fq: use rb_entry() net/mlx5: use rb_entry() ethernet: sfc: Add Kconfig entry for vendor Solarflare sctp: not copying duplicate addrs to the assoc's bind address list sctp: reduce indent level in sctp_copy_local_addr_list ARM: dts: hix5hd2: don't change the existing compatible string net: hix5hd2_gmac: fix compatible strings name openvswitch: Add a missing break statement. net: netcp: ethss: fix 10gbe host port tx pri map configuration net: netcp: ethss: fix errors in ethtool ops fsl/fman: enable compilation on ARM64 fsl/fman: A007273 only applies to PPC SoCs powerpc: fsl/fman: remove fsl,fman from of_device_ids[] fsl/fman: fix 1G support for QSGMII interfaces dt: bindings: net: use boolean dt properties for eee broken modes net: phy: use boolean dt properties for eee broken modes net: phy: fix sign type error in genphy_config_eee_advert ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output ...
Diffstat (limited to 'include/sound/da7213.h')