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arm: allwinner: clk: Add printfs when we cannot set the correct freq

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For some unknown reason this seems to fix this function when we printf
the best variable. This isn't a delay problem as doing a printf without
it doesn't solve this problem.
This is way above my pay grade so add some printf that shouldn't be printed
in 99% of the case anyway.
Fix booting on most Allwinner boards as the mmc IP uses a NM clock.

Reported by:	Alexander Mishin <mishin@mh.net.ru>
MFC after:	3 days
X-MFC-With:	363887
This commit is contained in:
Emmanuel Vadot 2020-08-28 18:25:45 +00:00
parent 62693fe830
commit 341ccc993c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=364927
1 changed files with 4 additions and 0 deletions
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4
sys/arm/allwinner/clkng/aw_clk_nm.c
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@ -221,11 +221,15 @@ aw_clk_nm_set_freq(struct clknode *clk, uint64_t fparent, uint64_t *fout,
if ((best < *fout) &&
((flags & CLK_SET_ROUND_DOWN) == 0)) {
*stop = 1;
printf("best freq (%llu) < requested freq(%llu)\n",
best, *fout);
return (ERANGE);
}
if ((best > *fout) &&
((flags & CLK_SET_ROUND_UP) == 0)) {
*stop = 1;
printf("best freq (%llu) > requested freq(%llu)\n",
best, *fout);
return (ERANGE);
}