Messages in this thread | | | Subject | Re: [PATCH 7/7] net: phy: Add pm support for scan ctrl register to bcm mdio mux | From | Arun Parameswaran <> | Date | Thu, 26 Jul 2018 12:51:01 -0700 |
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Hi Andrew,
On 18-07-26 12:36 PM, Andrew Lunn wrote: > On Thu, Jul 26, 2018 at 12:33:05PM -0700, Arun Parameswaran wrote: >> >> >> On 18-07-26 12:20 PM, Andrew Lunn wrote: >>> On Thu, Jul 26, 2018 at 11:36:24AM -0700, Arun Parameswaran wrote: >>>> Add support for saving and restoring the 'scan control' register >>>> in the Broadcom iProc mdio mux driver. >>> >>> Hi Arun >>> >>> I don't see anything setting this register. So why is it necessary to >>> save it over suspend/resume? >>> >>> Andrew >>> >> Hi Andrew >> In the Omega SoC (only), this register was defaulted incorrectly (to use >> a test mode) by the hardware. So we added the setup of the register to >> the early bootloader (ATF). >> >> We still need to restore this register while resuming from sleep. > > Hi Arun > > It is better to not rely on the bootloader and have the driver do it. > That makes it easier for people to swap to alternative bootloaders. > > Andrew > I will make the change to set the register in the driver.
Thanks Arun
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