linux-kernel - [PATCH] cpufreq: mediatek: Add mediatek related projects into blacklist

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Message-ID: <8193c5fd73ee34b59799fdf5c6cc24ca60971d6e.1516693333.git.sean.wang@mediatek.com>
Date:   Tue, 23 Jan 2018 16:31:11 +0800
From:   <sean.wang@...iatek.com>
To:     <stable@...r.kernel.org>, <rjw@...ysocki.net>,
        <viresh.kumar@...aro.org>
CC:     <matthias.bgg@...il.com>, <linux-mediatek@...ts.infradead.org>,
        <linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Sean Wang <sean.wang@...iatek.com>,
        Andrew-sh Cheng <andrew-sh.cheng@...iatek.com>,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH] cpufreq: mediatek: Add mediatek related projects into blacklist

From: Sean Wang <sean.wang@...iatek.com>

commit 6066998cbd2b1012a8d5bc9a2957cfd0ad53150e upstream.

commit edeec420de24 ("cpufreq: dt-platdev: Automatically create cpufreq
device with OPP v2") not added MediaTek SoCs to the blacklist that would
lead to cause an occasional hang or unexpected behaviors on related boards
as kernelci reported and complained on [1] specifically for 4.14 and 4.15
tree.

For those reasons, add MediaTek SoCs into cpufreq-dt blacklist and wish
the patch be applied to 4.14 and 4.15 tree to allow kernelci able to
complete following automated kernel testing.

[1] https://kernelci.org/boot/mt7623n-bananapi-bpi-r2/

Fixes: edeec420de24 (cpufreq: dt-cpufreq: platdev Automatically create device with OPP v2)
Signed-off-by: Andrew-sh Cheng <andrew-sh.cheng@...iatek.com>
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Cc: Kevin Hilman <khilman@...libre.com>
---
 drivers/cpufreq/cpufreq-dt-platdev.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index a753c50..9e0aa76 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -111,6 +111,14 @@ static const struct of_device_id blacklist[] __initconst = {
 
 	{ .compatible = "marvell,armadaxp", },
 
+	{ .compatible = "mediatek,mt2701", },
+	{ .compatible = "mediatek,mt2712", },
+	{ .compatible = "mediatek,mt7622", },
+	{ .compatible = "mediatek,mt7623", },
+	{ .compatible = "mediatek,mt817x", },
+	{ .compatible = "mediatek,mt8173", },
+	{ .compatible = "mediatek,mt8176", },
+
 	{ .compatible = "nvidia,tegra124", },
 
 	{ .compatible = "st,stih407", },
-- 
2.7.4