lkml.org 
[lkml]   [2019]   [Oct]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectDevfreq looks for unsupported frequencies on Exynos

Hi All,

I noticed recently error logs when booting Odroid HC1 (Exynos5422) on
exynos_defconfig, 5.4.0-rc1-next-20191004:

[ 5.168786] exynos-bus: new bus device registered: soc:bus_wcore ( 84000 KHz ~ 400000 KHz)
[ 5.177022] exynos-bus: new bus device registered: soc:bus_noc ( 67000 KHz ~ 100000 KHz)
[ 5.184705] exynos-bus: new bus device registered: soc:bus_fsys_apb (100000 KHz ~ 200000 KHz)
[ 5.192903] exynos-bus: new bus device registered: soc:bus_fsys (100000 KHz ~ 200000 KHz)
[ 5.201414] exynos-bus: new bus device registered: soc:bus_fsys2 ( 75000 KHz ~ 150000 KHz)
[ 5.209986] exynos-bus: new bus device registered: soc:bus_mfc ( 96000 KHz ~ 333000 KHz)
[ 5.217931] exynos-bus: new bus device registered: soc:bus_gen ( 89000 KHz ~ 267000 KHz)
[ 5.225222] exynos-bus soc:bus_wcore: dev_pm_opp_set_rate: failed to find current OPP for freq 532000000 (-34)
[ 5.225975] exynos-bus: new bus device registered: soc:bus_peri ( 67000 KHz ~ 67000 KHz)
[ 5.238824] exynos-bus soc:bus_noc: dev_pm_opp_set_rate: failed to find current OPP for freq 111000000 (-34)
[ 5.245719] exynos-bus: new bus device registered: soc:bus_g2d ( 84000 KHz ~ 333000 KHz)
[ 5.252653] exynos-bus soc:bus_fsys_apb: dev_pm_opp_set_rate: failed to find current OPP for freq 222000000 (-34)
[ 5.263518] exynos-bus: new bus device registered: soc:bus_g2d_acp ( 67000 KHz ~ 267000 KHz)
[ 5.280650] exynos-bus: new bus device registered: soc:bus_jpeg ( 75000 KHz ~ 300000 KHz)
[ 5.288827] exynos-bus: new bus device registered: soc:bus_jpeg_apb ( 84000 KHz ~ 167000 KHz)
[ 5.296957] exynos-bus: new bus device registered: soc:bus_disp1_fimd (120000 KHz ~ 200000 KHz)
[ 5.305939] exynos-bus: new bus device registered: soc:bus_disp1 (120000 KHz ~ 300000 KHz)
[ 5.314036] exynos-bus: new bus device registered: soc:bus_gscl_scaler (150000 KHz ~ 300000 KHz)
[ 5.323090] exynos-bus: new bus device registered: soc:bus_mscl ( 84000 KHz ~ 400000 KHz)

You can see that Exynos devfreq was trying to set 532000000 Hz for
wcore, 111000000 for noc and 222000000 for fsys_apb. These are higher
frequencies than we have in DTSI.

Any ideas why? It does not look normal...

Best regards,
Krzysztof

\
 
 \ /
  Last update: 2019-10-04 12:32    [W:0.059 / U:0.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site