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/linux/Documentation/ABI/testing/
H A Drtc-cdev6 The ioctl interface to drivers for real-time clocks (RTCs).
14 for RTCs that support alarms
17 RTCs that support alarms. Can be set up to 24 hours in the
21 * RTC_WKALM_RD, RTC_WKALM_SET: For RTCs that support a more
26 interrupt for RTCs that support periodic interrupts.
29 interrupt for RTCs that support it.
32 periodic interrupts for RTCs that support periodic interrupts.
40 * RTC_VL_CLEAR: Clear the voltage status of the RTC. Some RTCs
/linux/arch/powerpc/platforms/chrp/
H A Dtime.c43 struct device_node *rtcs; in chrp_time_init() local
47 rtcs = of_find_compatible_node(NULL, "rtc", "pnpPNP,b00"); in chrp_time_init()
48 if (rtcs == NULL) in chrp_time_init()
49 rtcs = of_find_compatible_node(NULL, "rtc", "ds1385-rtc"); in chrp_time_init()
50 if (rtcs == NULL) in chrp_time_init()
52 if (of_address_to_resource(rtcs, 0, &r)) { in chrp_time_init()
53 of_node_put(rtcs); in chrp_time_init()
56 of_node_put(rtcs); in chrp_time_init()
/linux/Documentation/admin-guide/
H A Drtc.rst13 system call reports, but RTCs also very commonly represent time using
27 RTCs use the same API to make requests in both RTC frameworks (using
30 IRQ, so they can't all issue alarms; and where standard PC RTCs can
127 The RTC Class framework supports a wide variety of RTCs, ranging from those
130 even support for PC-style RTCs ... including the features exposed on newer PCs
/linux/tools/testing/selftests/timers/
H A Drtcpie.c64 /* not all RTCs support periodic IRQs */ in main()
82 /* not all RTCs can change their periodic IRQ rate */ in main()
/linux/kernel/power/
H A Dsuspend_test.c59 * system. RTCs wake alarms are a common self-contained mechanism.
203 /* RTCs have initialized by now too ... can we use one? */ in test_suspend()
/linux/arch/arm/mach-footbridge/
H A Disa-rtc.c15 * 16-Mar-1999 RMK More support for EBSA285-like machines with RTCs in
/linux/include/linux/
H A Drtc.h124 * For direct accessible RTCs tsched ~= t1 because the write time
125 * is negligible. For RTCs behind slow busses the transport time is
H A Dmc146818rtc.h25 /* Some RTCs extend the mc146818 register set to support alarms of more
/linux/Documentation/devicetree/bindings/rtc/
H A Dtrivial-rtc.yaml7 title: Trivial RTCs
/linux/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/
H A Daction_ste_pool.c167 "Allocated %s action STE table log_sz %zu; STEs (%d, %d); RTCs (%d, %d); STC %d\n", in hws_action_ste_table_alloc()
192 "Destroying %s action STE table: STEs (%d, %d); RTCs (%d, %d); STC %d\n", in hws_action_ste_table_destroy()
H A Dmatcher.c56 /* Reset end_ft next RTCs */ in hws_matcher_connect_end_ft_isolated()
62 mlx5hws_err(tbl->ctx, "Isolated matcher: failed to reset FT's next RTCs\n"); in hws_matcher_connect_end_ft_isolated()
331 * Reset isolated table FT next RTCs and connect it in hws_matcher_disconnect_isolated()
339 mlx5hws_err(tbl->ctx, "Isolated matcher: failed to reset FT's next RTCs\n"); in hws_matcher_disconnect_isolated()
H A Drule.c362 * For hash split / linear lookup RTCs, packets reaching any STE in hws_rule_create_hws()
H A Dsend.c315 /* Backup original RTCs */ in hws_send_engine_update_rule_resize()
/linux/drivers/rtc/
H A Ddev.c21 #define RTC_DEV_MAX 16 /* 16 RTCs should be enough for everyone... */
261 * but dual-booting with MS-Windows implies RTCs must in rtc_dev_ioctl()
H A Dsysfs.c130 * conceptually one-shot, even though some common RTCs (on PCs) in wakealarm_show()
H A Drtc-rs5c372.c3 * An I2C driver for Ricoh RS5C372, R2025S/D and RV5C38[67] RTCs
18 * Ricoh has a family of I2C based RTCs, which differ only slightly from
H A Dclass.c219 * The default is what most RTCs do: Increment seconds exactly one in rtc_allocate_device()
H A Drtc-at91sam9.c41 * Not all RTTs will be used as RTCs; some systems have multiple RTTs to
H A Drtc-cmos.c354 * allegedly some older rtcs need that to handle irqs properly in cmos_checkintr()
1516 MODULE_DESCRIPTION("Driver for PC-style 'CMOS' RTCs");
H A Drtc-rv8803.c174 * the Epson RTCs don't, so we manually reset the remainder here. in rv8803_regs_reset()
H A Drtc-omap.c34 * The main user-visible ways it differs from PC RTCs are by omitting
H A Dinterface.c276 /* full-function RTCs won't have such missing fields */ in __rtc_read_alarm()
/linux/drivers/watchdog/
H A Dsb_wdog.c9 * enumeration class for watchdogs in Linux like there is for RTCs.
/linux/drivers/i2c/busses/
H A Di2c-octeon-core.c851 * with ds1337 RTCs, so we constrain it to larger values. in octeon_i2c_set_clock()