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Danct12>
anyone here having an oops when mailbox driver loads?
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Danct12>
*with the apcs driver
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Danct12>
keeps complaining about clk_hw_get_rate
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aka_[m]>
Danct12: 8937?
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aka_[m]>
Show patches
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Danct12>
aka_[m]: yep
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Danct12>
all disaster are here
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Danct12>
aka_[m]: btw does CCI exist on 8937? they're both using GPLL0_EARLY clock
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Danct12>
the downstream driver also does not initialize cci clock for anything other than 8952
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aka_[m]>
Have a look at clk-cpu-sdm.c in 4.19
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Danct12>
aka_[m]: looks like they rewrote the driver for use with their newer low end platforms
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Danct12>
no mention of 8937 anywhere
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Danct12>
OH they did update msm8937 on 4.19
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Danct12>
i swear they supported the soc for 4 generation of LTS releases
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aka_[m]>
In job rn cannot really help
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aka_[m]>
Seems like 8937 is similar to 8953
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aka_[m]>
Cci is supplied only via gpll0
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aka_[m]>
At variable divider
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aka_[m]>
Tbh I wonder how you reconfigure cci
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aka_[m]>
You still cannot change div on fly I believe?
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aka_[m]>
lumag: any idea?
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aka_[m]>
Switching to xo maybe
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aka_[m]>
Then your pll would be gpll0(one with fixed freq) and alt would be xo(input 0)
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aka_[m]>
But that would require different parent map
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aka_[m]>
Or yoh can have fun with debugcc and Check of it can be supplied by other means
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Danct12>
seems like qualcomm is getting much more cleaner in newer kernel versions
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Danct12>
interesting
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aka_[m]>
If I were you I would just ignore setting apcs_cci boot to linux and read register and see how is it setup by sbl/pbl
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aka_[m]>
It's either 0x54 or 0x50
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aka_[m]>
From apcs base
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Danct12>
# devmem 0xb1d1050
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Danct12>
0x00000002
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lumag>
aka_[m], no idea, unfortunately. Usually it will be either switched to some stable PLL output or to some secondary pll.
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aka_[m]>
<Danct12> "# devmem 0xb1d1050" <-
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aka_[m]>
CFG_RCGR ADDRESS 0x0054 RW
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konradybcio>
aka_: im not sure freq tbl is (or should be) useful
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aka_[m]>
konradybcio: on ds it looks like it binds freq to bandwidth then to encoder/decoder not sure how it is on mainline
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aka_[m]>
And about freq table ngl I would expect it to be in opp_table
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aka_[m]>
Same with bandwidths
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konradybcio>
yeah this driver is a big mess
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aka_[m]>
I wish one day fwloader would be aware of existence of storage outside of ramdisk
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aka_[m]>
So I can build stuff as y and have it wait for rootfs to load fw
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konradybcio>
impossible /s