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author | Chen-Yu Tsai <wens@csie.org> | 2016-05-11 13:23:13 +0800 |
---|---|---|
committer | Olof Johansson <olof@lixom.net> | 2016-06-03 12:30:48 -0700 |
commit | cb84f6c0a25eb76b1f838eb63e212705c0c06b5f (patch) | |
tree | 4e45f7a442ed7dc0ae938d21ceada032cdd57768 /arch/arm/boot/dts/sun6i-a31s-primo81.dts | |
parent | 80084632e2abf9968f0a582ef044889c686e2954 (diff) | |
download | linux-cb84f6c0a25eb76b1f838eb63e212705c0c06b5f.tar.bz2 |
ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator
This is the same issue fixed in commit dcf5341f0150 ("ARM: dts:
sun8i-q8-common: Do not set constraints on dc1sw regulator").
Commit message copied:
dc1sw is an on/off only regulator and as such it cannot have constraints.
This is a limitation of the kernel regulator implementation which resolves
supplies on the first regulator_get(), which is done after applying
constraints, and applying the constrains will fail because it calls
_regulator_get_voltage() and _regulator_do_set_voltage() both of which
will fail on a switch regulator when there is no supply (yet).
This causes registering of all axp22x regulators to fail with the
following errors:
[ 1.395249] vcc-lcd: failed to get the current voltage(-22)
[ 1.405131] axp20x-regulator axp20x-regulator: Failed to register dc1sw
[ 1.412436] axp20x-regulator: probe of axp20x-regulator failed with error -22
This commit removes the constrains on dc1sw / vcc-lcd fixing this problem.
Note that dcdc1 itself is contrained to the exact same values, so this
does not change anything.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Cc: <stable@vger.kernel.org> # 4.6
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/boot/dts/sun6i-a31s-primo81.dts')
-rw-r--r-- | arch/arm/boot/dts/sun6i-a31s-primo81.dts | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/sun6i-a31s-primo81.dts b/arch/arm/boot/dts/sun6i-a31s-primo81.dts index 68b479b8772c..73c133f5e79c 100644 --- a/arch/arm/boot/dts/sun6i-a31s-primo81.dts +++ b/arch/arm/boot/dts/sun6i-a31s-primo81.dts @@ -176,8 +176,6 @@ }; ®_dc1sw { - regulator-min-microvolt = <3000000>; - regulator-max-microvolt = <3000000>; regulator-name = "vcc-lcd"; }; |