linux/drivers/rtc
Mark Brown ec947d6fbb rtc: wm831x: Feed the write counter into device_add_randomness()
commit 9dccf55f4c upstream.

The tamper evident features of the RTC include the "write counter" which
is a pseudo-random number regenerated whenever we set the RTC. Since this
value is unpredictable it should provide some useful seeding to the random
number generator.

Only do this on boot since the goal is to seed the pool rather than add
useful entropy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-15 08:10:29 -07:00
..
class.c Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-12-05 16:53:43 -08:00
hctosys.c rtc/hctosys: only claim the RTC provided the system time if it did 2010-03-12 15:52:28 -08:00
interface.c rtc: Provide flag for rtc devices that don't support UIE 2012-03-15 18:23:10 -07:00
Kconfig ARM: driver specific updates 2012-03-27 16:41:24 -07:00
Makefile rtc: driver for DA9052/53 PMIC v1 2012-03-23 16:58:40 -07:00
rtc-88pm860x.c Merge branch 'akpm' (Andrew's patch-bomb) 2012-04-05 15:30:34 -07:00
rtc-ab3100.c drivers/rtc/rtc-ab3100.c: add missing platform_set_drvdata() in ab3100_rtc_probe() 2010-09-22 17:22:39 -07:00
rtc-ab8500.c drivers/rtc/rtc-ab8500.c: use IRQF_ONESHOT when requesting a threaded IRQ 2012-07-16 09:04:44 -07:00
rtc-at32ap700x.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
rtc-at91rm9200.c ARM: at91: make rm9200 rtc drivers soc independent 2011-11-28 22:50:39 +08:00
rtc-at91sam9.c ARM: device tree work 2012-03-27 16:47:35 -07:00
rtc-au1xxx.c rtc: t reaches -1, tested 0 2009-02-11 14:25:36 -08:00
rtc-bfin.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-bq32k.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-bq4802.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-cmos.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-coh901331.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-core.h rtc: update to class device removal patches 2007-05-08 11:15:18 -07:00
rtc-da9052.c rtc: driver for DA9052/53 PMIC v1 2012-03-23 16:58:40 -07:00
rtc-davinci.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-dev.c rtc: Fix ioctl error path return 2011-06-01 19:29:39 -07:00
rtc-dm355evm.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-ds1216.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rtc-ds1286.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-ds1302.c sh: mach-snapgear: Kill off machtype, consolidate board def. 2010-10-29 19:06:53 +09:00
rtc-ds1305.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-ds1307.c drivers/rtc/rtc-ds1307.c: fix BUG shown with lock debugging enabled 2012-04-25 21:26:34 -07:00
rtc-ds1374.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-ds1390.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-ds1511.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-ds1553.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-ds1672.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-ds1742.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-ds3232.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-ds3234.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-efi.c drivers/rtc/rtc-efi.c: fix section mismatch warning 2012-04-12 13:12:12 -07:00
rtc-em3027.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-ep93xx.c rtc: ep93xx: Fix 'rtc' may be used uninitialized warning 2011-08-10 15:54:24 -07:00
rtc-fm3130.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-generic.c parisc: rtc: Rename rtc-parisc to rtc-generic 2009-04-02 01:05:31 +00:00
rtc-imxdi.c drivers/rtc/rtc-imxdi.c needs linux/sched.h 2011-09-14 18:09:37 -07:00
rtc-isl1208.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-isl12022.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-jz4740.c drivers/rtc/rtc-jz4740.c: make jz4740_rtc_driver static 2012-01-10 16:30:53 -08:00
rtc-lib.c rtc: Initialized rtc_time->tm_isdst 2011-08-26 17:26:35 -07:00
rtc-lpc32xx.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-ls1x.c MIPS: add RTC support for loongson1B 2012-03-23 16:58:39 -07:00
rtc-m41t80.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-m41t93.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-m41t94.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-m48t35.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-m48t59.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-m48t86.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-max6900.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-max6902.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-max8925.c drivers/rtc/rtc-max8925.c: fix alarm->enabled mistake in max8925_rtc_read_alarm/max8925_rtc_set_alarm 2012-03-23 16:58:39 -07:00
rtc-max8998.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-mc13xxx.c drivers/rtc/rtc-mc13xxx.c: make mc13xxx_rtc_idtable static 2012-01-10 16:30:53 -08:00
rtc-mpc5121.c rtc: Fix possible null pointer dereference in rtc-mpc5121.c 2012-04-26 11:17:01 +02:00
rtc-mrst.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-msm6242.c rtc: msm6242: Initialize drvdata before registering device 2011-05-06 18:02:03 -07:00
rtc-mv.c ARM: More device tree support updates 2012-03-28 12:34:33 -07:00
rtc-mxc.c drivers/rtc/rtc-mxc.c: fix irq enabled interrupts warning 2012-07-16 09:04:44 -07:00
rtc-nuc900.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-omap.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-pcap.c rtc: pcap: Initialize drvdata before registering device 2011-05-06 18:02:04 -07:00
rtc-pcf2123.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-pcf8563.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-pcf8583.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-pcf50633.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-pl030.c Merge branch 'amba' of git://git.linaro.org/people/rmk/linux-arm 2012-03-23 17:36:29 -07:00
rtc-pl031.c drivers/rtc/rtc-pl031.c: configure correct wday for 2000-01-01 2012-05-17 18:00:51 -07:00
rtc-pm8xxx.c drivers/rtc/rtc-pm8xxx.c: make pm8xxx_rtc_pm_ops static 2012-03-23 16:58:39 -07:00
rtc-proc.c RTC: Include information about UIE and PIE in RTC driver proc. 2011-03-09 11:25:04 -08:00
rtc-ps3.c powerpc/ps3: Add rtc-ps3 2009-04-02 01:05:32 +00:00
rtc-puv3.c rtc-puv3: solve section mismatch in rtc-puv3.c 2012-01-10 10:29:42 +08:00
rtc-pxa.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-r9701.c drivers/rtc/rtc-r9701.c: reset registers if invalid values are detected 2012-04-12 13:12:12 -07:00
rtc-rp5c01.c rtc: rp5c01: Initialize drvdata before registering device 2011-05-06 18:02:05 -07:00
rtc-rs5c313.c rtc: rtc-rs5c313: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 15:30:32 +09:00
rtc-rs5c348.c rtc: convert rtc spi drivers to module_spi_driver 2012-03-23 16:58:39 -07:00
rtc-rs5c372.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-rv3029c2.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-rx8025.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-rx8581.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-s3c.c drivers/rtc/rtc-s3c.c: add placeholder for driver private data 2012-04-12 13:12:12 -07:00
rtc-s35390a.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00
rtc-sa1100.c ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
rtc-sh.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-spear.c drivers/rtc/rtc-spear.c: fix use-after-free in spear_rtc_remove() 2012-07-16 09:04:44 -07:00
rtc-starfire.c rtc: rtc-starfire fixes 2008-11-21 01:24:38 -08:00
rtc-stk17ta8.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-stmp3xxx.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-sun4v.c rtc: rtc-sun4v fixes, revised 2008-11-14 16:37:54 -08:00
rtc-sysfs.c rtc/hctosys: only claim the RTC provided the system time if it did 2010-03-12 15:52:28 -08:00
rtc-tegra.c drivers/rtc/rtc-tegra.c: properly initialize spinlock 2011-07-25 20:57:17 -07:00
rtc-test.c RTC: Fix the cross interrupt issue on rtc-test. 2011-03-09 11:25:07 -08:00
rtc-tile.c tile: add an RTC driver for the Tilera hypervisor 2011-05-17 14:44:36 -04:00
rtc-twl.c drivers/rtc/rtc-twl.c: use static register while reading time 2012-04-12 13:12:12 -07:00
rtc-tx4939.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-v3020.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-vr41xx.c drivers/rtc: remove IRQF_DISABLED 2012-03-23 16:58:39 -07:00
rtc-vt8500.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-wm831x.c rtc: wm831x: Feed the write counter into device_add_randomness() 2012-08-15 08:10:29 -07:00
rtc-wm8350.c rtc: convert drivers/rtc/* to use module_platform_driver() 2012-01-10 16:30:53 -08:00
rtc-x1205.c rtc: convert rtc i2c drivers to module_i2c_driver 2012-03-23 16:58:39 -07:00