linux-kernel - [PATCH RESEND(2) 0/1] Ensure that HiKey 970 won't hang during boot time

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Message-Id: <cover.1639558556.git.mchehab+huawei@kernel.org>
Date:   Wed, 15 Dec 2021 09:57:38 +0100
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH RESEND(2) 0/1] Ensure that HiKey 970 won't hang during boot time

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