SYSEN1, 2 control DDR voltages and REGEN2 actually controls PLLEN (without which platform cannot function). We need to mark in dts that these are supposed to be always on. Palmas REGEN1 and REGEN3(called REGEN2) are unused on the platform. So we let them auto disable themselves by not defining them. Cc: J Keerthy <j-keerthy@xxxxxx> Signed-off-by: Subramaniam Chanderashekarapuram <subramaniam.ca@xxxxxx> Signed-off-by: Nishanth Menon <nm@xxxxxx> --- Patch based on v3.15-rc2, also tested on next-20140423 tag: Tested by applying [1] (auto disable unused regulator for regulators that are deferred): Without [1]: http://slexy.org/raw/s21MCHgeJo (no regulators are disabled) with [1]: http://slexy.org/raw/s21c99YY8n (unused regulators auto disabled). - DDR and board shuts off :( With fix: http://slexy.org/raw/s2TH36cThR [1] https://patchwork.kernel.org/patch/2545061/ arch/arm/boot/dts/dra7-evm.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index 5babba0..3f94f75 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -209,6 +209,27 @@ regulator-max-microvolt = <3300000>; regulator-boot-on; }; + + sysen1: sysen1 { + /* SYSEN1 ->... EVM_3V3_SW -> DDR VTT */ + regulator-name = "sysen1"; + regulator-boot-on; + regulator-always-on; + }; + + sysen2: sysen2 { + /* SYSEN2 -> ... TPS57112 1v35DDR */ + regulator-name = "sysen2"; + regulator-boot-on; + regulator-always-on; + }; + + regen2: regen2 { + /* Internal REGEN2 is PLLEN */ + regulator-name = "regen2"; + regulator-boot-on; + regulator-always-on; + }; }; }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
