12844ac08c
Looks like not all firmware versions used for MSM8939 program the timer
frequency for both broadcast/MMIO timers, causing a WARNING at runtime:
WARNING: CPU: 0 PID: 0 at kernel/time/clockevents.c:38 cev_delta2ns+0x74/0x90
pc : cev_delta2ns+0x74/0x90
lr : clockevents_config.part.0+0x64/0x8c
Call trace:
cev_delta2ns+0x74/0x90
clockevents_config_and_register+0x20/0x34
arch_timer_mem_of_init+0x374/0x534
timer_probe+0x88/0x110
time_init+0x14/0x4c
start_kernel+0x2c0/0x640
Unfortunately there is no way to fix the firmware on most of these
devices since it's proprietary and signed. As a workaround, specify the
clock-frequency explicitly in the DT to fix the warning.
Fixes: 61550c6c156c ("arm64: dts: qcom: Add msm8939 SoC")
Reported-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231204-msm8939-timer-v1-1-a2486c625786@gerhold.net
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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