From: Tony Lindgren <tony@atomide.com>
To: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org
Cc: linux-crypto@vger.kernel.org,
"Aaro Koskinen" <aaro.koskinen@iki.fi>,
"Adam Ford" <aford173@gmail.com>,
"Pali Rohár" <pali.rohar@gmail.com>,
"Sebastian Reichel" <sre@kernel.org>,
"Tero Kristo" <t-kristo@ti.com>,
"Rob Herring" <robh+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: [PATCH 4/7] hwrng: omap3-rom - Initialize default quality to get data
Date: Sat, 14 Sep 2019 14:02:57 -0700 [thread overview]
Message-ID: <20190914210300.15836-5-tony@atomide.com> (raw)
In-Reply-To: <20190914210300.15836-1-tony@atomide.com>
Similar to commit 62f95ae805fa ("hwrng: omap - Set default quality")
we need to initialize the default quality for the RNG to be used.
The symptoms of this problem is that doing hd /dev/random does not
produce much data at all.
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Adam Ford <aford173@gmail.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
drivers/char/hw_random/omap3-rom-rng.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c
--- a/drivers/char/hw_random/omap3-rom-rng.c
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -88,6 +88,7 @@ static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w)
static struct hwrng omap3_rom_rng_ops = {
.name = "omap3-rom",
+ .quality = 900,
};
static int omap3_rom_rng_probe(struct platform_device *pdev)
--
2.23.0
next prev parent reply other threads:[~2019-09-14 21:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-14 21:02 [PATCHv2 0/7] Non-urgent fixes and improvments for omap3-rom-rng Tony Lindgren
2019-09-14 21:02 ` [PATCH 1/7] ARM: OMAP2+: Check omap3-rom-rng for GP device instead of HS device Tony Lindgren
2019-09-14 21:02 ` [PATCH 2/7] hwrng: omap3-rom - Fix missing clock by probing with device tree Tony Lindgren
2019-09-30 22:20 ` Rob Herring
2019-09-14 21:02 ` [PATCH 3/7] hwrng: omap3-rom - Call clk_disable_unprepare() on exit only if not idled Tony Lindgren
2019-09-14 21:02 ` Tony Lindgren [this message]
2019-09-14 21:02 ` [PATCH 5/7] hwrng: omap3-rom - Update to use standard driver data Tony Lindgren
2019-09-14 21:02 ` [PATCH 6/7] hwrng: omap3-rom - Use runtime PM instead of custom functions Tony Lindgren
2019-09-14 21:03 ` [PATCH 7/7] hwrng: omap3-rom - Use devm hwrng and runtime PM Tony Lindgren
2019-09-16 6:47 ` [PATCHv2 0/7] Non-urgent fixes and improvments for omap3-rom-rng Tero Kristo
2019-09-16 19:08 ` Sebastian Reichel
2019-09-16 20:17 ` Aaro Koskinen
2019-10-04 15:40 ` Herbert Xu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190914210300.15836-5-tony@atomide.com \
--to=tony@atomide.com \
--cc=aaro.koskinen@iki.fi \
--cc=aford173@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=mpm@selenic.com \
--cc=pali.rohar@gmail.com \
--cc=robh+dt@kernel.org \
--cc=sre@kernel.org \
--cc=t-kristo@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).