Dove clock support (was: Re: RFC: [PATCH] ARM: Kirkwood: clk_register_gate_fn: add fn assignment)

[gmbnomis@gmail.com (Simon Baatz)]

On Mon, Jun 18, 2012 at 10:43:00AM +0200, Andrew Lunn wrote:
> > Sure, the address layout is different, but that can be made generic in a
> > second step. Maybe we need a private pointer in the gate_fn struct.
> 
> Yes, something like that.
>  
> > BTW: who will enable the clocks that have been disabled via the
> > sata/pcie shutdown functions?
> 
> This is potentially a problem when the SATA driver is built as a
> kernel module. There is no code that i know of to turn the SATA PHYs
> back on again. I think this has been broken like this for a long
> time...
> 

This is not potentially a problem, this is definitively a problem (on kirkwood):

[   12.280783] sata_mv sata_mv.0: cannot get optional clkdev                    
[   12.286314] sata_mv sata_mv.0: slots 32 ports 2                              
[   12.304443] scsi0 : sata_mv                                                  
[   12.307836] scsi1 : sata_mv                                                  
[   12.310804] ata1: SATA max UDMA/133 irq 21                                   
[   12.314920] ata2: SATA max UDMA/133 irq 21                                   
[   12.665882] ata1: SATA link down (SStatus 0 SControl F300)                   
[   13.015881] ata2: SATA link down (SStatus 0 SControl F300)                   


- Simon