Re: [PATCH v7 0/5] clk: ti: add am33xx spread spectrum clock support
From: Tony Lindgren <tony@atomide.com>
Date: 2021-06-04 07:24:14
Also in:
linux-clk, linux-omap, lkml
From: Tony Lindgren <tony@atomide.com>
Date: 2021-06-04 07:24:14
Also in:
linux-clk, linux-omap, lkml
Hi, * Dario Binacchi [off-list ref] [210602 15:00]:
As reported by the TI spruh73x/spruhl7x RM, MPU and LCD modules support spread spectrum clocking (SSC) on their output clocks. SSC is used to spread the spectral peaking of the clock to reduce any electromagnetic interference (EMI) that may be caused due to the clock’s fundamental or any of its harmonics. The series allows you to enable and adjust the spread spectrum clocking for all am33xx/am43xx PLLs for which it is supported. All these issues have been fixed. Previous versions of the series did not supported SSC for am43xx SOCs, causing clock registration failure for DPLLs. Furthermore, for am33xx SOCs, clock registration failed for DPLLs for which SSC is not supported.
Looks good to me, probably best to queue this all via the clock tree. Regards, Tony