Messages in this thread Patch in this message | | | From | Nishanth Menon <> | Subject | [PATCH 6/9] ARM: dts: omap5-uevm: update LDO4 voltage to 1.5V and settings | Date | Wed, 17 Jul 2013 11:45:35 -0500 |
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commit e00c27ef3b4c23e39d0a77b7c8e5be44c28001c7 (ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes) introduced regulator entries for OMAP5uEVM.
However, The regulator information is based on an older temporary pre-production board variant and does not reflect production board 750-2628-XXX boards.
LDO4 supplies VDDAPHY_DISP which is vdda_dsiporta/c/vdda_hdmi
This can only be supplied at 1.5V or 1.8V and we currently supply 2.2V.
To prevent any potential device damage risk, use the specified 1.5V-1.8V supply.
Remove 'always-on' and 'boot-on' settings here as it is a 'on need' supply to SoC IP and is not enabled by PMIC by default at boot.
Reported-by: Marc Jüttner <m-juettner@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> --- arch/arm/boot/dts/omap5-uevm.dts | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index c6d560b..1550d6a 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -372,10 +372,8 @@ ldo4_reg: ldo4 { /* VDDAPHY_DISP: vdda_dsiport/hdmi */ regulator-name = "ldo4"; - regulator-min-microvolt = <2200000>; - regulator-max-microvolt = <2200000>; - regulator-always-on; - regulator-boot-on; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1800000>; }; ldo5_reg: ldo5 { -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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