On 11/12/13 10:54, Kishon Vijay Abraham I wrote: > On Wednesday 27 November 2013 06:56 PM, Tomasz Stanislawski wrote: >> > Hello everyone, >> > The Samsung SoCs from Exynos family are enhanced with a bunch of switches >> > dedicated for IP blocks. Those switches are called PHYs in Exynos >> > specification. They are usually controlled by a single bit in a single >> > one-word-long register. > > So only enabling this switch is enough for the controller or some other actual > PHY IP is needed along with this switch? > > However I'm not sure if the switch should be modelled as PHY as it is not a PHY > in the real sense. These are ordinary PHY devices embedded in an SoC. I wouldn't really call them "switches", as they indeed provide the physical layer functionality for various interfaces, like USB, HDMI, MIPI CSI/DSI, etc. Their control interface is often very simple - usually only an enable and a reset control bit. But that can't change the fact they are real PHY devices, so let's not call them switches, that's just untrue. Regards, Sylwester -- 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
