From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH RESEND(2) 0/1] Ensure that HiKey 970 won't hang during boot time
Date: Wed, 15 Dec 2021 09:57:38 +0100 [thread overview]
Message-ID: <cover.1639558556.git.mchehab+huawei@kernel.org> (raw)
Second resend attempt. Didn't get any feedback about this series yet.
During HiKey 970 boot, hundreds of clock lines are disabled, causing the device to
hang.
There are actually two issues here:
1. The clk core doesn't wait enough time for the device drivers to be probed
before agressively disabling "unused" clocks. This was noticed at the
drivers built as modules;
2. Several HiKey 970 gates are essencial for the device to work, but they're
not marked as such.
The first patch fixes the clk core issue, while second one marks the mandatory
clocks as such.
Mauro Carvalho Chehab (1):
clk: clk-hi3670: mark some clocks as CLK_IS_CRITICAL
drivers/clk/hisilicon/clk-hi3670.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
--
2.33.1
next reply other threads:[~2021-12-15 8:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-15 8:57 Mauro Carvalho Chehab [this message]
2021-12-15 8:57 ` [PATCH RESEND(2) 1/1] clk: clk-hi3670: mark some clocks as CLK_IS_CRITICAL Mauro Carvalho Chehab
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