On 04/26/2016 12:03 PM, Tony Lindgren wrote: > * Nishanth Menon <nm@xxxxxx> [160420 01:20]: >> As per the data sheet starting from SPRUHQ0H (Nov 2015 - Latest[1]), >> VDD_CORE can vary from 0.85v to 1.15v for AVS class0. VDD GPU/DSP >> et.al. can range from 0.85v to 1.25V with AVS class0 >> >> Since dynamic voltage scaling is disabled for DRA7/AM57xx SoCs for >> all SoC rails other than MPU, the bootloader is responsible for >> setting up the AVS class0 voltage, however, with wrong voltage machine >> constraints in dtb, regulator framework will lower the voltage below >> the required voltage levels for certain samples in production flow. >> This can cause catastrophic failures which can be pretty hard to >> identify. >> >> Update board files which don't match required specification. >> >> [1] http://www.ti.com/product/AM5728/datasheet/specifications#SPRT637-7340 > > Applying into omap-for-v4.7/dt thanks. This does not apply to > v4.6-rc, so assuming this is not an urgent fix. Thanks. Yep, it is not an emergency regression fix since most of the platforms out in the field are not impacted. -- Regards, Nishanth Menon -- 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
