From: Stephan Gerhold Date: Mon, 4 Dec 2023 09:55:53 +0000 (+0100) Subject: arm64: dts: qcom: msm8939: Add clock-frequency for broadcast timer X-Git-Tag: microblaze-v6.10~624^2~8^2~66 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=12844ac08c593c2dd232b1b0d96ee21944dfb044;p=linux-2.6-microblaze.git arm64: dts: qcom: msm8939: Add clock-frequency for broadcast timer 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 Signed-off-by: Stephan Gerhold Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20231204-msm8939-timer-v1-1-a2486c625786@gerhold.net Signed-off-by: Bjorn Andersson --- diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi index 95610a32750a..4ba115eecfd5 100644 --- a/arch/arm64/boot/dts/qcom/msm8939.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi @@ -2195,6 +2195,8 @@ #address-cells = <1>; #size-cells = <1>; ranges; + /* Necessary because firmware does not configure this correctly */ + clock-frequency = <19200000>; frame@b121000 { reg = <0x0b121000 0x1000>,