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linux/drivers/watchdog
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Wolfram Sang 82f64cd208 watchdog: renesas_wdt: apply better precision 
The error margin of the clks_per_second variable was too large and
caused offsets when used with clock frequencies which left a remainder
after applying the dividers. Now we always calculate directly using the
clock rate and the divider using some helper macros. That also means
that DIV_ROUND_UP moves from probe to the multiplication macro. In
probe, we don't need to ensure anymore that 'clks_per_sec' would go too
fast but rather ensure that the lower limit is really at least 1 to
certainly get a full cycle.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2017-09-09 20:23:19 +02:00
..
acquirewdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
advantechwdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
alim1535_wdt.c
watchdog: remove DEFINE_PCI_DEVICE_TABLE macro
2014-01-28 19:07:07 +01:00
alim7101_wdt.c
watchdog: alim7101: register restart handler with kernel restart handler
2014-09-26 00:00:32 -07:00
ar7_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
asm9260_wdt.c
watchdog: asm9260: explicitly request exclusive reset control
2017-09-09 20:18:36 +02:00
aspeed_wdt.c
watchdog: aspeed_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
at32ap700x_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
at91rm9200_wdt.c
Merge git://www.linux-watchdog.org/linux-watchdog
2015-09-11 15:12:59 -07:00
at91sam9_wdt.c
watchdog: at91sam9: get and use slow clock
2015-09-09 21:38:52 +02:00
at91sam9_wdt.h
watchdog: add a driver to support SAMA5D4 watchdog timer
2015-09-09 21:38:29 +02:00
ath79_wdt.c
mips: separate extable.h, switch module.h to it
2016-10-05 18:36:18 -04:00
atlas7_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
bcm47xx_wdt.c
watchdog: bcm47xx_wdt: constify bcm47xx_wdt_hard_ops and bcm47xx_wdt_soft_ops
2017-07-03 13:53:28 +02:00
bcm63xx_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
bcm2835_wdt.c
scripts/spelling.txt: add "partiton" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
bcm7038_wdt.c
watchdog: constify watchdog_info structures
2017-02-24 14:00:23 -08:00
bcm_kona_wdt.c
watchdog: bcm281xx: Fix use of uninitialized spinlock.
2017-05-19 10:42:25 +02:00
bfin_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
booke_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
cadence_wdt.c
watchdog: cadence_wdt: make of_device_ids const.
2017-07-03 13:53:43 +02:00
coh901327_wdt.c
watchdog: coh901327_wdt: constify watchdog_ops structure
2017-09-09 20:06:38 +02:00
cpu5wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
cpwd.c
watchdog: cpwd: remove memory allocate failure message
2016-12-16 06:53:55 -08:00
da9052_wdt.c
watchdog: da9052_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
da9055_wdt.c
watchdog: da9055_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
da9062_wdt.c
watchdog: da9062_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
da9063_wdt.c
watchdog: da9063_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
davinci_wdt.c
watchdog: davinci: Add missing clk_disable_unprepare().
2017-07-03 11:02:43 +02:00
diag288_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
digicolor_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
dw_wdt.c
watchdog: dw_wdt: get reset lines from dt
2017-07-03 10:52:04 +02:00
ebc-c384_wdt.c
watchdog: ebc-c384_wdt: Utilize devm_ functions in driver probe callback
2017-02-24 14:00:23 -08:00
ep93xx_wdt.c
watchdog: ep93xx_wdt: cleanup and let the core handle the heartbeat
2017-02-24 14:00:23 -08:00
eurotechwdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
f71808e_wdt.c
watchdog: f71808e_wdt: Add F71868 support
2017-06-05 20:43:01 +02:00
gef_wdt.c
watchdog: Fix module autoload for OF platform driver
2015-09-28 10:56:01 +02:00
gemini_wdt.c
watchdog: add driver for Cortina Gemini watchdog
2017-02-24 14:00:23 -08:00
geodewdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
gpio_wdt.c
watchdog: gpio: Convert to use infrastructure triggered keepalives
2017-06-05 20:39:27 +02:00
hpwdt.c
drivers/watchdog/hpwdt.c: use set_memory.h header
2017-05-08 17:15:14 -07:00
i6300esb.c
watchdog: delete non-required instances of include <linux/init.h>
2014-03-31 13:22:45 +02:00
ib700wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
ibmasr.c
watchdog: fix checkpatch warnings and error
2014-03-31 13:31:06 +02:00
ie6xx_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
imgpdc_wdt.c
watchdog: constify watchdog_info structures
2017-02-24 14:00:23 -08:00
imx2_wdt.c
watchdog: imx2_wdt: add pretimeout function support
2016-10-08 10:27:30 +02:00
indydog.c
watchdog: indydog: Simplify indydog_{start,stop}
2014-03-31 13:26:31 +02:00
intel_scu_watchdog.c
watchdog: intel_scu_watchdog: Remove unused variable
2014-03-31 13:26:56 +02:00
intel_scu_watchdog.h
…
intel-mid_wdt.c
watchdog: intel-mid_wdt: Keep watchdog running
2017-06-05 20:37:35 +02:00
iop_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
it87_wdt.c
watchdog: it87_wdt: constify watchdog_ops structure
2017-09-09 20:06:25 +02:00
it8712f_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
iTCO_vendor_support.c
…
iTCO_vendor.h
…
iTCO_wdt.c
watchdog: Revert "iTCO_wdt: all versions count down twice"
2017-09-09 17:41:24 +02:00
ixp4xx_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
jz4740_wdt.c
watchdog: jz4740: Fix modular build
2016-12-16 06:53:54 -08:00
Kconfig
Merge git://www.linux-watchdog.org/linux-watchdog
2017-07-11 09:59:37 -07:00
kempld_wdt.c
watchdog: kempld: fix gcc-4.3 build
2017-03-01 06:15:10 -08:00
ks8695_wdt.c
char: make misc_deregister a void function
2015-08-05 10:35:49 -07:00
lantiq_wdt.c
watchdog: update my email address
2017-02-24 14:00:23 -08:00
loongson1_wdt.c
watchdog: loongson1: Add Loongson1 SoC watchdog driver
2016-12-16 06:53:55 -08:00
lpc18xx_wdt.c
watchdog: constify watchdog_info structures
2017-02-24 14:00:23 -08:00
m54xx_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
machzwd.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
Makefile
watchdog: uniphier: add UniPhier watchdog driver
2017-07-03 13:58:55 +02:00
max63xx_wdt.c
watchdog: max63xx: make module's license marker match the header
2016-01-31 16:51:56 +01:00
max77620_wdt.c
watchdog: max77620_wdt: fix module autoload
2016-12-16 06:53:53 -08:00
mei_wdt.c
Watchdog updates for v4.10
2016-12-24 11:27:45 -08:00
mena21_wdt.c
watchdog: mena21_wdt: Convert to use device managed functions and other improvements
2017-02-24 14:00:23 -08:00
menf21bmc_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
meson_gxbb_wdt.c
watchdog: meson: Handle return value of clk_prepare_enable
2017-07-03 11:02:31 +02:00
meson_wdt.c
watchdog: meson-wdt: add support for the watchdog on Meson8 and Meson8m2
2017-09-09 20:14:01 +02:00
mixcomwd.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
moxart_wdt.c
watchdog: Add 'action' and 'data' parameters to restart handler callback
2016-03-01 15:36:35 +01:00
mpc8xxx_wdt.c
watchdog: mpc8xxx: Remove unneeded linux/miscdevice.h include
2016-12-16 06:53:55 -08:00
mt7621_wdt.c
watchdog: mt7621: explicitly request exclusive reset control
2017-09-09 20:18:56 +02:00
mtk_wdt.c
watchdog: Add 'action' and 'data' parameters to restart handler callback
2016-03-01 15:36:35 +01:00
mtx-1_wdt.c
watchdog: delete non-required instances of include <linux/init.h>
2014-03-31 13:22:45 +02:00
mv64x60_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
ni903x_wdt.c
watchdog: ni903x_wdt: Add NI 903x/913x watchdog driver
2016-03-01 16:25:39 +01:00
nic7018_wdt.c
watchdog: nic7018_wdt: Add NIC7018 watchdog driver
2017-02-24 14:00:23 -08:00
nuc900_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
nv_tco.c
watchdog: add support for MCP78S chipset in nv_tco
2016-07-17 21:04:13 +02:00
nv_tco.h
…
octeon-wdt-main.c
Watchdog updates for v4.10
2016-12-24 11:27:45 -08:00
octeon-wdt-nmi.S
…
of_xilinx_wdt.c
watchdog: xilinx: Add clock support
2016-09-23 22:04:09 +02:00
omap_wdt.c
watchdog: omap: don't disable the timer when it should be enabled early
2015-12-27 21:09:40 +01:00
omap_wdt.h
watchdog: omap_wdt: implement get_timeleft
2015-06-22 15:54:35 +02:00
orion_wdt.c
watchdog: orion: make license info match the file header
2017-06-05 20:39:12 +02:00
pc87413_wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
pcwd_pci.c
watchdog: remove DEFINE_PCI_DEVICE_TABLE macro
2014-01-28 19:07:07 +01:00
pcwd_usb.c
watchdog: pcwd_usb: fix NULL-deref at probe
2017-05-18 18:51:34 +02:00
pcwd.c
watchdog: pcwd: Utilize the module_isa_driver macro
2016-07-17 20:59:23 +02:00
pic32-dmt.c
watchdog: pic32-dmt: Remove .owner field for driver
2016-07-25 12:02:32 +02:00
pic32-wdt.c
watchdog: pic32-wdt: Fix return value check in pic32_wdt_drv_probe()
2016-07-25 12:02:43 +02:00
pika_wdt.c
watchdog: pika_wdt: add __ro_after_init to ident
2017-02-24 14:00:23 -08:00
pnx833x_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
pnx4008_wdt.c
watchdog: pnx4008: restart: support "cmd" from userspace
2016-03-16 21:09:42 +01:00
pretimeout_noop.c
watchdog: pretimeout: add noop pretimeout governor
2016-10-08 10:27:13 +02:00
pretimeout_panic.c
watchdog: pretimeout: add panic pretimeout governor
2016-10-08 10:27:17 +02:00
qcom-wdt.c
watchdog: qcom: fix kernel panic due to external abort on non-linefetch
2016-12-16 06:53:54 -08:00
rc32434_wdt.c
watchdog: rc32434_wdt: fix ioctl error handling
2016-03-01 15:29:42 +01:00
rdc321x_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
renesas_wdt.c
watchdog: renesas_wdt: apply better precision
2017-09-09 20:23:19 +02:00
retu_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
riowd.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
rn5t618_wdt.c
watchdog: constify watchdog_info structures
2017-02-24 14:00:23 -08:00
rt2880_wdt.c
watchdog: rt2880: explicitly request exclusive reset control
2017-09-09 20:18:50 +02:00
rza_wdt.c
watchdog: add rza_wdt driver
2017-06-05 20:37:17 +02:00
s3c2410_wdt.c
watchdog: s3c2410: Minor code cleanup
2017-06-05 20:38:52 +02:00
sa1100_wdt.c
watchdog: sa11x0/pxa: fix error path of driver initialization
2017-02-24 14:00:23 -08:00
sama5d4_wdt.c
watchdog: sama5d4: Add comment explaining what happens on resume
2017-06-05 17:58:39 +02:00
sb_wdog.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbc60xxwdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbc7240_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbc8360.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbc_epx_c3.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbc_fitpc2_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
sbsa_gwdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
sc520_wdt.c
watchdog: sc520_wdt: Remove unused variable
2014-03-31 13:27:34 +02:00
sc1200wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
sch311x_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
scx200_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
shwdt.c
watchdog: shwdt: Use setup_timer()
2016-05-14 18:25:56 +02:00
sirfsoc_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
smsc37b787_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
softdog.c
watchdog: softdog: fire watchdog even if softirqs do not get to run
2017-03-01 06:15:10 -08:00
sp805_wdt.c
watchdog: sp805: ping fails to abort wdt reset
2016-01-31 16:52:08 +01:00
sp5100_tco.c
watchdog: sp5100_tco: properly check for new register layouts
2016-05-14 16:16:04 +02:00
sp5100_tco.h
…
st_lpc_wdt.c
watchdog: st_wdt: Remove support for obsolete platforms
2016-09-24 08:59:49 +02:00
stm32_iwdg.c
watchdog: stm32_iwdg: constify watchdog_ops structure
2017-09-09 20:06:31 +02:00
stmp3xxx_rtc_wdt.c
watchdog: stmp3xxx: Remove unused variables
2016-01-11 21:51:28 +01:00
sun4v_wdt.c
watchdog: constify watchdog_ops structures
2017-02-24 14:00:23 -08:00
sunxi_wdt.c
watchdog: sunxi_wdt: Convert to use device managed functions and other improvements
2017-02-24 14:00:23 -08:00
tangox_wdt.c
watchdog: tangox: Use watchdog core to install restart handler
2017-02-24 14:00:23 -08:00
tegra_wdt.c
watchdog: tegra_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
ts72xx_wdt.c
watchdog: ts72xx_wdt: constify watchdog_ops structure
2017-09-09 20:06:14 +02:00
ts4800_wdt.c
watchdog: ts4800: add driver for TS-4800 watchdog
2015-12-28 22:29:35 +01:00
twl4030_wdt.c
mfd: twl: Move header file out of I2C realm
2017-09-04 14:41:02 +01:00
txx9wdt.c
watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF
2016-09-23 22:36:32 +02:00
uniphier_wdt.c
watchdog: uniphier: add UniPhier watchdog driver
2017-07-03 13:58:55 +02:00
ux500_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
via_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
w83627hf_wdt.c
watchdog: w83627hf: make const array chip_name static
2017-09-09 20:08:03 +02:00
w83877f_wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
w83977f_wdt.c
watchdog: w83977f_wdt: underflow in wdt_set_timeout()
2015-11-23 08:59:30 +01:00
wafer5823wdt.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
watchdog_core.c
watchdog: core: Fix devres_alloc() allocation size
2016-09-23 08:37:14 +02:00
watchdog_core.h
watchdog: Create watchdog device in watchdog_dev.c
2015-12-29 20:36:01 +01:00
watchdog_dev.c
watchdog: introduce watchdog_worker_should_ping helper
2017-07-03 13:59:05 +02:00
watchdog_pretimeout.c
watchdog: pretimeout: add pretimeout_available_governors attribute
2016-10-08 10:27:24 +02:00
watchdog_pretimeout.h
watchdog: pretimeout: add pretimeout_available_governors attribute
2016-10-08 10:27:24 +02:00
wd501p.h
…
wdat_wdt.c
watchdog: wdat_wdt: Ping the watchdog on resume
2016-10-21 01:28:33 +02:00
wdrtas.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
wdt285.c
watchdog: wdt285: Fix variable type
2014-03-31 13:28:20 +02:00
wdt977.c
watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
2013-11-17 19:38:13 +01:00
wdt_pci.c
watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT
2017-05-18 18:51:44 +02:00
wdt.c
Annotate hardware config module parameters in drivers/watchdog/
2017-04-20 12:02:32 +01:00
wm831x_wdt.c
watchdog: wm831x_wdt: Convert to use device managed functions
2017-02-24 14:00:23 -08:00
wm8350_wdt.c
Watchdog: Fix parent of watchdog_devices
2015-09-09 21:39:22 +02:00
xen_wdt.c
watchdog: drop owner assignment from platform_drivers
2014-10-20 16:21:56 +02:00
ziirave_wdt.c
watchdog: ziirave_wdt: Add support to upload the firmware.
2016-09-23 22:34:24 +02:00
zx2967_wdt.c
watchdog: zx2967: explicitly request exclusive reset control
2017-09-09 20:18:43 +02:00