diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2014-02-19 06:13:48 -0500 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2014-04-16 09:58:22 -0400 |
| commit | 7b793b96de263864c66de0defc76522397289b6b (patch) | |
| tree | f818920eb5348241d07c06f473d73376d004ebbd | |
| parent | 0c394607409094702aed56d90332a0981baf3491 (diff) | |
ARM: dts: imx6sl-evk: Keep VGEN1 regulator always enabled
On imx6sl-evk board the VGEN1 regulator powers up the NVCC_1P2V domain of the
imx6sl SoC, so we need to keep it always powered.
According to imx6sl datasheet the GPIO block has three supplies:
NVCC33_IO, NVCC18_IO and NVCC_1P2V and it states that:
"All digital I/O supplies (NVCC_xxxx) must be powered under normal conditions
whether the associated I/O pins are in use or not"
This problem has been observed by the fact that a GPIO connected to an LED could
not work when the PMIC driver was enabled.
Keeping VGEN1 regulator always enabled fixes the problem.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
(cherry picked from commit d2c3936ebe88ce3cc188d01be0c684884e396293)
| -rw-r--r-- | arch/arm/boot/dts/imx6sl-evk.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts index ed0ce8918bfe..ff1fdfb71fe6 100644 --- a/arch/arm/boot/dts/imx6sl-evk.dts +++ b/arch/arm/boot/dts/imx6sl-evk.dts | |||
| @@ -84,6 +84,7 @@ | |||
| 84 | vgen1_reg: vgen1 { | 84 | vgen1_reg: vgen1 { |
| 85 | regulator-min-microvolt = <800000>; | 85 | regulator-min-microvolt = <800000>; |
| 86 | regulator-max-microvolt = <1550000>; | 86 | regulator-max-microvolt = <1550000>; |
| 87 | regulator-always-on; | ||
| 87 | }; | 88 | }; |
| 88 | 89 | ||
| 89 | vgen2_reg: vgen2 { | 90 | vgen2_reg: vgen2 { |