mediatek: backport cpufreq changes to support MT7988

Backport cpufreq changes from upstream so that the MediaTek MT7988 SoC
can be supported.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit e4555d69a1c7c811188d8e257e77ac917d15f492)

1 files changed, 32 insertions, 0 deletions

diff --git a/target/linux/mediatek/patches-5.15/350-08-cpufreq-mediatek-Fix-NULL-pointer-dereference-in-med.patch b/target/linux/mediatek/patches-5.15/350-08-cpufreq-mediatek-Fix-NULL-pointer-dereference-in-med.patch
new file mode 100644
index 0000000000..f2f572a753
--- /dev/null
+++ b/target/linux/mediatek/patches-5.15/350-08-cpufreq-mediatek-Fix-NULL-pointer-dereference-in-med.patch
@@ -0,0 +1,32 @@
+From fa7030d8ad4638acfd9e0fac84a20716d031dc95 Mon Sep 17 00:00:00 2001
+From: Wan Jiabing <wanjiabing@vivo.com>
+Date: Tue, 26 Apr 2022 19:17:14 +0800
+Subject: [PATCH 08/21] cpufreq: mediatek: Fix NULL pointer dereference in
+ mediatek-cpufreq
+
+Fix following coccicheck error:
+drivers/cpufreq/mediatek-cpufreq.c:464:16-23: ERROR: info is NULL but dereferenced.
+
+Use pr_err instead of dev_err to avoid dereferring a NULL pointer.
+
+Fixes: f52b16ba9fe4 ("cpufreq: mediatek: Use device print to show logs")
+Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
+Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
+Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
+---
+ drivers/cpufreq/mediatek-cpufreq.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/cpufreq/mediatek-cpufreq.c
++++ b/drivers/cpufreq/mediatek-cpufreq.c
+@@ -463,8 +463,8 @@ static int mtk_cpufreq_init(struct cpufr
+ 
+ 	info = mtk_cpu_dvfs_info_lookup(policy->cpu);
+ 	if (!info) {
+-		dev_err(info->cpu_dev,
+-			"dvfs info for cpu%d is not initialized.\n", policy->cpu);
++		pr_err("dvfs info for cpu%d is not initialized.\n",
++			policy->cpu);
+ 		return -EINVAL;
+ 	}
+