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author | H. Nikolaus Schaller <hns@goldelico.com> | 2021-07-01 16:00:22 +0200 |
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committer | Tony Lindgren <tony@atomide.com> | 2021-07-27 11:14:55 +0300 |
commit | c68ef4ad180e09805fa46965d15e1dfadf09ffa5 (patch) | |
tree | 5c1b5be79357d8761c27ac98b6a1c443c87de695 /arch/sparc | |
parent | 0162a9964365fd26e34575e121b17d021204c481 (diff) | |
download | linux-c68ef4ad180e09805fa46965d15e1dfadf09ffa5.tar.gz linux-c68ef4ad180e09805fa46965d15e1dfadf09ffa5.tar.bz2 linux-c68ef4ad180e09805fa46965d15e1dfadf09ffa5.zip |
omap5-board-common: remove not physically existing vdds_1v8_main fixed-regulator
This device tree include file describes a fixed-regulator
connecting smps7_reg output (1.8V) to some 1.8V rail and
consumers (vdds_1v8_main).
This regulator does not physically exist.
I assume it was introduced as a wrapper around smps7_reg
to provide a speaking signal name "vdds_1v8_main" as label.
This fixed-regulator without real function was not an issue
in driver code until
Commit 98e48cd9283d ("regulator: core: resolve supply for boot-on/always-on regulators")
introduced a new check for regulator initialization which
makes Palmas regulator registration fail:
[ 5.407712] ldo1: supplied by vsys_cobra
[ 5.412748] ldo2: supplied by vsys_cobra
[ 5.417603] palmas-pmic 48070000.i2c:palmas@48:palmas_pmic: failed to register 48070000.i2c:palmas@48:palmas_pmic regulator
The reason is that the supply-chain of regulators is too
long and goes from ldo3 through the virtual vdds_1v8_main
regulator and then back to smps7. This adds a cross-dependency
of probing Palmas regulators and the fixed-regulator which
leads to probe deferral by the new check and is no longer
resolved.
Since we do not control what device tree files including this
one reference (either &vdds_1v8_main or &smps7_reg or both)
we keep both labels for smps7 for compatibility.
Fixes: 98e48cd9283d ("regulator: core: resolve supply for boot-on/always-on regulators")
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/sparc')
0 files changed, 0 insertions, 0 deletions