[GIT PULL] Greybus driver subsystem for 4.9-rc1

Bryan O'Donoghue pure.logic at nexus-software.ie
Thu Sep 15 03:47:13 PDT 2016


On Thu, 2016-09-15 at 11:35 +0100, Bryan O'Donoghue wrote:
> 

Here's a slightly better diagram.

PMIC -> refclk provided to each (timer) element below.

MSM8994(timer) -- > USB
WD8a
               APBridgeA (timer) -> UniPro bus
               WD8a
                                            -> Module(timer) with UART
                                               WD1
                                            -> Module(timer) with GPIO
                                               WD2
                                            -> Module(timer) with blah
                                               WD3
                              -> SPI bus
                                            -> SVC(timer)
                                               Owns FrameTime
                                               GPIO {WD0...WDn}

So yes, each processor has it's own timer. We aren't trying to read the
MSM's FrameTime.

---
bod



More information about the linux-arm-kernel mailing list