Hi Gautam,
On Wed, Jun 21, 2017 at 1:18 PM, Gautam Bhat mindentropy@gmail.com wrote:
This change sets the VLDO4 settings output to 2.8V in PMIC initialization so that the MIPI DSI and MIPI CSI input voltage is 2.8V as per the schematics.
As we do not have MIPI DSI / MIPI CSI support in U-Boot, it is preferable to let the kernel configure the regulator.
You can do this is the device tree like this:
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts index 54c4540..923aa755 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -285,8 +285,8 @@ };
vgen6_reg: vldo4 { - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; regulator-always-on; }; };
Regards,
Fabio Estevam