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| author | Chen-Yu Tsai <wens@csie.org> | 2016-05-11 07:23:14 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2016-06-03 21:31:32 +0200 |
| commit | b223d6242c372a81cca3bb81998f53d3b3e3fb70 (patch) | |
| tree | e2138fa581ca19d01f187f43ffcd653daed569e2 /arch/arm | |
| parent | ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator (diff) | |
| download | linux-b223d6242c372a81cca3bb81998f53d3b3e3fb70.tar.xz linux-b223d6242c372a81cca3bb81998f53d3b3e3fb70.zip | |
ARM: dts: sun6i: yones-toptech-bs1078-v2: 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')
| -rw-r--r-- | arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts b/arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts index 360adfb1e9ca..d6ad6196a768 100644 --- a/arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts +++ b/arch/arm/boot/dts/sun6i-a31s-yones-toptech-bs1078-v2.dts @@ -135,8 +135,6 @@ ®_dc1sw { regulator-name = "vcc-lcd-usb2"; - regulator-min-microvolt = <3000000>; - regulator-max-microvolt = <3000000>; }; ®_dc5ldo { |