linux/drivers/watchdog
Andrey Smirnov fe05178c78 watchdog: ziirave_wdt: Drop status polling code
Bootloader firmware doesn't implement DOWNLOAD_START or
DOWNLOAD_PACKET in a non-blocking way. It will stretch the clock of
the first status byte read until the operation is complete. Polling
for the status is not really necessary since it will always succed on
the first try. Replace polling code with a simple single byte read to
simplify things.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Rick Ramstetter <rick@anteaterllc.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190812200906.31344-20-andrew.smirnov@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-09-17 08:59:08 +02:00
..
acquirewdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
advantechwdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
alim1535_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
alim7101_wdt.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ar7_wdt.c watchdog: Mark expected switch fall-throughs 2019-08-12 13:05:37 +02:00
armada_37xx_wdt.c watchdog: armada_37xx_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:14 +02:00
asm9260_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
aspeed_wdt.c watchdog: aspeed_wdt: drop warning after registering device 2019-07-08 15:13:02 +02:00
at91rm9200_wdt.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
at91sam9_wdt.c watchdog: Convert to use devm_platform_ioremap_resource 2019-05-05 21:02:12 +02:00
at91sam9_wdt.h watchdog: add SPDX identifiers for watchdog subsystem 2018-03-24 10:19:40 +01:00
ath79_wdt.c watchdog: ath79_wdt: fix a typo in the name of a function 2019-07-24 20:21:39 +02:00
atlas7_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 2019-05-30 11:29:21 -07:00
bcm_kona_wdt.c watchdog: bcm_kona_wdt: no need to check return value of debugfs_create functions 2019-07-08 20:35:10 +02:00
bcm47xx_wdt.c watchdog: add SPDX identifiers for watchdog subsystem 2018-03-24 10:19:40 +01:00
bcm63xx_wdt.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
bcm2835_wdt.c watchdog: bcm2835_wdt: Fix module autoload 2019-07-08 16:08:32 +02:00
bcm7038_wdt.c watchdog: bcm7038_wdt: drop warning after registering device 2019-07-08 15:13:02 +02:00
bd70528_wdt.c watchdog: bd70528: Initial support for ROHM BD70528 watchdog block 2019-05-05 21:02:10 +02:00
booke_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cadence_wdt.c watchdog: cadence_wdt: drop warning after registering device 2019-07-08 15:13:04 +02:00
coh901327_wdt.c watchdog: coh901327: make it explicitly non-modular 2019-05-05 21:10:33 +02:00
cpu5wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
cpwd.c watchdog: cpwd: use generic compat_ptr_ioctl 2019-09-17 08:59:02 +02:00
da9052_wdt.c watchdog: da9052_wdt: drop warning after registering device 2019-07-08 15:13:04 +02:00
da9055_wdt.c watchdog: da9055_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:16 +02:00
da9062_wdt.c watchdog: da9062_wdt: drop warning after registering device 2019-07-08 15:13:04 +02:00
da9063_wdt.c watchdog: da9063_wdt: parse DT for timeout value, too 2019-05-05 21:04:57 +02:00
davinci_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
diag288_wdt.c watchdog: diag288_wdt: Remove leftover includes from conversion to watchdog API 2019-09-17 08:59:01 +02:00
digicolor_wdt.c watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe 2019-07-15 08:49:11 +02:00
dw_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ebc-c384_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
ep93xx_wdt.c watchdog: ep93xx_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:19 +02:00
eurotechwdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
f71808e_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ftwdt010_wdt.c watchdog: ftwdt010_wdt: drop warning after registering device 2019-07-08 15:13:06 +02:00
gef_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
geodewdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio_wdt.c watchdog: gpio: add support for nowayout option 2019-07-08 19:39:44 +02:00
hpwdt.c watchdog/hpwdt: Reflect changes 2019-07-08 16:10:10 +02:00
i6300esb.c watchdog: i6300esb: drop warning after registering device 2019-07-08 15:13:06 +02:00
ib700wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
ibmasr.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
ie6xx_wdt.c watchdog: ie6xx_wdt: Use spinlock_t instead of struct spinlock 2019-07-08 20:46:48 +02:00
imgpdc_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
imx_sc_wdt.c watchdog: imx_sc: Remove unnecessary error log 2019-09-17 08:59:02 +02:00
imx2_wdt.c watchdog: imx2_wdt: fix min() calculation in imx2_wdt_set_timeout 2019-09-17 08:59:02 +02:00
indydog.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
intel_scu_watchdog.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 278 2019-06-05 17:36:36 +02:00
intel_scu_watchdog.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 278 2019-06-05 17:36:36 +02:00
intel-mid_wdt.c watchdog: intel-mid_wdt: drop warning after registering device 2019-07-08 15:13:08 +02:00
iop_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320 2019-06-05 17:37:05 +02:00
it87_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
it8712f_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
iTCO_vendor_support.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
iTCO_vendor.h watchdog: iTCO_wdt: Remove unused hooks 2018-10-02 13:32:25 +02:00
iTCO_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
ixp4xx_wdt.c ARM: SoC platform updates 2019-05-16 08:31:32 -07:00
jz4740_wdt.c watchdog: jz4740: Fix unused variable warning in jz4740_wdt_probe 2019-08-12 13:05:39 +02:00
Kconfig watchdog: remove w90x900 driver 2019-09-16 22:10:05 +02:00
kempld_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294 2019-06-05 17:36:38 +02:00
lantiq_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
loongson1_wdt.c watchdog: loongson1_wdt: drop warning after registering device 2019-07-08 15:13:08 +02:00
lpc18xx_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
m54xx_wdt.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
machzwd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Makefile watchdog: remove w90x900 driver 2019-09-16 22:10:05 +02:00
max63xx_wdt.c watchdog: max63xx_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:22 +02:00
max77620_wdt.c watchdog: max77620_wdt: drop warning after registering device 2019-07-08 15:13:09 +02:00
mei_wdt.c watchdog: mei_wdt: no need to check return value of debugfs_create functions 2019-07-08 20:35:10 +02:00
mena21_wdt.c watchdog: mena21_wdt: drop warning after registering device 2019-07-08 15:13:09 +02:00
menf21bmc_wdt.c watchdog: menf21bmc_wdt: drop warning after registering device 2019-07-08 15:13:10 +02:00
menz69_wdt.c watchdog: add driver for the MEN 16z069 IP-Core 2018-08-02 15:57:12 +02:00
meson_gxbb_wdt.c watchdog: meson_gxbb_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:23 +02:00
meson_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mixcomwd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mlx_wdt.c watchdog: mlx_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:24 +02:00
moxart_wdt.c watchdog: moxart_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:24 +02:00
mpc8xxx_wdt.c watchdog: mpc8xxx_wdt: drop warning after registering device 2019-07-08 15:13:10 +02:00
mt7621_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mtk_wdt.c watchdog: mtk_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:25 +02:00
mtx-1_wdt.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
mv64x60_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
ni903x_wdt.c watchdog: ni903x_wdt: drop warning after registering device 2019-07-08 15:13:10 +02:00
nic7018_wdt.c watchdog: nic7018_wdt: drop warning after registering device 2019-07-08 15:13:11 +02:00
npcm_wdt.c watchdog: npcm_wdt: drop warning after registering device 2019-07-08 15:13:11 +02:00
nv_tco.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nv_tco.h watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
octeon-wdt-main.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
octeon-wdt-nmi.S watchdog: octeon-wdt: Remove old boot vector code. 2017-09-04 21:19:03 +02:00
of_xilinx_wdt.c watchdog: of_xilinx_wdt: drop warning after registering device 2019-07-08 15:13:12 +02:00
omap_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
omap_wdt.h watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
orion_wdt.c watchdog: Convert to use devm_platform_ioremap_resource 2019-05-05 21:02:12 +02:00
pc87413_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
pcwd_pci.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
pcwd_usb.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
pcwd.c watchdog: Mark expected switch fall-throughs 2019-08-12 13:05:37 +02:00
pic32-dmt.c watchdog: pic32-dmt: drop warning after registering device 2019-07-08 15:13:12 +02:00
pic32-wdt.c watchdog: pic32-wdt: drop warning after registering device 2019-07-08 15:13:12 +02:00
pika_wdt.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
pm8916_wdt.c watchdog: pm8916_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:26 +02:00
pnx833x_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pnx4008_wdt.c watchdog: pnx4008_wdt: allow compile-testing 2019-09-16 22:10:05 +02:00
pretimeout_noop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pretimeout_panic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
qcom-wdt.c watchdog: qcom-wdt: drop warning after registering device 2019-07-08 15:13:13 +02:00
rave-sp-wdt.c watchdog: rave-sp-wdt: drop warning after registering device 2019-07-08 15:13:14 +02:00
rc32434_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
rdc321x_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
renesas_wdt.c watchdog: renesas_wdt: Add a few cycles delay 2019-07-08 19:39:44 +02:00
retu_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
riowd.c watchdog: riowd: Mark expected switch fall-through 2019-08-12 13:05:38 +02:00
rn5t618_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446 2019-06-05 17:37:18 +02:00
rt2880_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rtd119x_wdt.c watchdog: rtd119x: drop unused module.h include 2019-05-05 21:10:34 +02:00
rza_wdt.c watchdog: rza_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:27 +02:00
s3c2410_wdt.c watchdog: s3c2410_wdt: drop warning after registering device 2019-07-08 15:13:14 +02:00
sa1100_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
sama5d4_wdt.c watchdog: atmel: atmel-sama5d4-wdt: Disable watchdog on system suspend 2019-07-08 20:35:12 +02:00
sb_wdog.c watchdog: Mark expected switch fall-throughs 2019-08-12 13:05:37 +02:00
sbc_epx_c3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sbc_fitpc2_wdt.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
sbc60xxwdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sbc7240_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
sbc8360.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
sbsa_gwdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294 2019-06-05 17:36:38 +02:00
sc520_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sc1200wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch311x_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
scx200_wdt.c watchdog: scx200_wdt: Mark expected switch fall-through 2019-08-12 13:05:37 +02:00
shwdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sirfsoc_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
smsc37b787_wdt.c docs: watchdog: convert docs to ReST and rename to *.rst 2019-07-08 20:35:09 +02:00
softdog.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
sp805_wdt.c watchdog: sp805_wdt: drop warning after registering device 2019-07-08 15:13:15 +02:00
sp5100_tco.c watchdog: sp5100_tco: drop warning after registering device 2019-07-08 15:13:15 +02:00
sp5100_tco.h watchdog: sp5100_tco: Add support for recent FCH versions 2018-01-21 12:56:37 +01:00
sprd_wdt.c watchdog: Remove dev_err() usage after platform_get_irq() 2019-08-12 13:05:38 +02:00
st_lpc_wdt.c watchdog: st_lpc_wdt: drop warning after registering device 2019-07-08 15:13:16 +02:00
stm32_iwdg.c watchdog: stm32_iwdg: drop warning after registering device 2019-07-08 15:13:16 +02:00
stmp3xxx_rtc_wdt.c watchdog: stmp3xxx_rtc_wdt: drop warning after registering device 2019-07-08 15:13:17 +02:00
stpmic1_wdt.c watchdog: stpmic1_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:29 +02:00
sun4v_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sunxi_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tangox_wdt.c watchdog: tangox_wdt: Convert to use device managed functions and other improvements 2019-05-05 21:02:30 +02:00
tegra_wdt.c watchdog: tegra_wdt: drop warning after registering device 2019-07-08 15:13:17 +02:00
tqmx86_wdt.c watchdog: tqmx86_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:31 +02:00
ts72xx_wdt.c watchdog: ts72xx_wdt: Use 'dev' instead of dereferencing it repeatedly 2019-05-05 21:02:32 +02:00
ts4800_wdt.c watchdog: ts4800_wdt: drop warning after registering device 2019-07-08 15:13:17 +02:00
twl4030_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
txx9wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uniphier_wdt.c watchdog: uniphier_wdt: drop platform_set_drvdata 2019-05-05 21:02:32 +02:00
ux500_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
via_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
w83627hf_wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
w83877f_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
w83977f_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wafer5823wdt.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
watchdog_core.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
watchdog_core.h watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
watchdog_dev.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
watchdog_pretimeout.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
watchdog_pretimeout.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wd501p.h watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
wdat_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
wdrtas.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153 2019-05-30 11:26:32 -07:00
wdt_pci.c watchdog: convert remaining drivers to use SPDX license identifier 2019-07-08 20:35:11 +02:00
wdt.c watchdog: Mark expected switch fall-throughs 2019-08-12 13:05:37 +02:00
wdt285.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
wdt977.c watchdog: wdt977: Mark expected switch fall-through 2019-08-12 13:05:38 +02:00
wm831x_wdt.c watchdog: wm831x_wdt: drop warning after registering device 2019-07-08 15:13:18 +02:00
wm8350_wdt.c watchdog: add SPDX identifiers for watchdog subsystem 2018-03-24 10:19:40 +01:00
xen_wdt.c watchdog: xen_wdt: drop warning after registering device 2019-07-08 15:13:18 +02:00
ziirave_wdt.c watchdog: ziirave_wdt: Drop status polling code 2019-09-17 08:59:08 +02:00
zx2967_wdt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00