Alexander Sverdlin 6d01d8511d hwrng: ks-sa - Add minimum sleep time before ready-polling ...

Current polling timeout is 25 us. The hardware is currently configured to
harvest the entropy for 81920 us. This leads to timeouts even during
blocking read (wait=1).

Log snippet:
[    5.727589] [<c040ffcc>] (ks_sa_rng_probe) from [<c04181e8>] (platform_drv_probe+0x58/0xb4)
...
[    5.727805] hwrng: no data available
...
[   13.157016] random: systemd: uninitialized urandom read (16 bytes read)
[   13.157033] systemd[1]: Initializing machine ID from random generator.
...
[   15.848770] random: fast init done
...
[   15.848807] random: crng init done

After the patch:
[    6.223534] random: systemd: uninitialized urandom read (16 bytes read)
[    6.223551] systemd[1]: Initializing machine ID from random generator.
...
[    6.876075] random: fast init done
...
[    6.954200] random: systemd: uninitialized urandom read (16 bytes read)
[    6.955244] random: systemd: uninitialized urandom read (16 bytes read)
...
[    7.121948] random: crng init done

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2019-11-17 08:37:29 +08:00

..

amd-rng.c

hwrng: amd - Revert managed API changes

2017-03-16 17:43:10 +08:00

atmel-rng.c

hwrng: atmel - add new platform support for sam9x60

2019-11-15 13:44:17 +08:00

bcm2835-rng.c

hwrng: bcm2835 - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:53 +11:00

cavium-rng-vf.c

hwrng: drivers - Use device-managed registration API

2019-08-02 14:44:33 +10:00

cavium-rng.c

hwrng: cavium - make two functions static

2018-03-09 22:45:34 +08:00

core.c

hwrng: core - Fix use-after-free warning in hwrng_register()

2019-10-23 19:47:00 +11:00

exynos-trng.c

hwrng: exynos - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:53 +11:00

geode-rng.c

hwrng: geode - Revert managed API changes

2017-03-16 17:43:11 +08:00

hisi-rng.c

hwrng: hisi - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:54 +11:00

hisi-trng-v2.c

hwrng: hisi - add HiSilicon TRNG driver support

2019-11-08 23:15:51 +08:00

imx-rngc.c

hwrng: imx-rngc - use devm_platform_ioremap_resource() to simplify code

2019-07-27 21:08:32 +10:00

intel-rng.c

hwrng: printk replacement

2014-10-02 14:35:00 +08:00

iproc-rng200.c

hwrng: iproc-rng200 - Use devm_platform_ioremap_resource() in iproc_rng200_probe()

2019-10-05 01:06:17 +10:00

ixp4xx-rng.c

IXP4xx: HW pseudo-random generator is available on IXP45x/46x only.

2012-11-22 03:35:39 +00:00

Kconfig

hwrng: hisi - add HiSilicon TRNG driver support

2019-11-08 23:15:51 +08:00

ks-sa-rng.c

hwrng: ks-sa - Add minimum sleep time before ready-polling

2019-11-17 08:37:29 +08:00

Makefile

hwrng: hisi - add HiSilicon TRNG driver support

2019-11-08 23:15:51 +08:00

meson-rng.c

hwrng: meson - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:55 +11:00

mtk-rng.c

hwrng: mediatek - Use devm_platform_ioremap_resource() in mtk_rng_probe()

2019-10-05 01:06:18 +10:00

mxc-rnga.c

hwrng: mxc-rnga - use devm_platform_ioremap_resource() to simplify code

2019-07-27 21:08:32 +10:00

n2-asm.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

n2-drv.c

hwrng: n2-drv - fix typo

2019-08-08 12:07:49 +10:00

n2rng.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nomadik-rng.c

hwrng: drivers - Use device-managed registration API

2019-08-02 14:44:33 +10:00

npcm-rng.c

hwrng: npcm - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:55 +11:00

octeon-rng.c

hwrng: octeon - Use devm_hwrng_register

2015-09-21 22:00:38 +08:00

omap3-rom-rng.c

hwrng: omap3-rom - Fix unused function warnings

2019-11-01 13:33:42 +08:00

omap-rng.c

hwrng: omap - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:56 +11:00

optee-rng.c

hwrng: make symbol 'optee_rng_id_table' static

2019-02-20 17:58:50 +01:00

pasemi-rng.c

hwrng: pasemi - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:56 +11:00

pic32-rng.c

hwrng: pic32 - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:56 +11:00

powernv-rng.c

hwrng: drivers - Use device-managed registration API

2019-08-02 14:44:33 +10:00

pseries-rng.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333

2019-06-05 17:37:06 +02:00

s390-trng.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 376

2019-06-05 17:37:10 +02:00

st-rng.c

hwrng: st - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:57 +11:00

stm32-rng.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 110

2019-05-24 17:39:01 +02:00

timeriomem-rng.c

hwrng: timeriomem - relax check on memory resource size

2019-09-05 14:37:30 +10:00

tx4939-rng.c

hwrng: tx4939 - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:57 +11:00

via-rng.c

hwrng: via - support new Centaur CPU

2018-04-21 00:59:03 +08:00

virtio-rng.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102

2019-05-24 17:39:00 +02:00

xgene-rng.c

hwrng: xgene - use devm_platform_ioremap_resource() to simplify code

2019-10-26 02:09:57 +11:00