[PATCH v7 0/7] Add PLL clocks driver and syscon for StarFive JH7110 SoC

Conor Dooley conor at kernel.org
Mon Jul 17 11:14:16 PDT 2023


Hey Xingyu,

On Mon, Jul 17, 2023 at 10:30:33AM +0800, Xingyu Wu wrote:
> This patch serises are to add PLL clocks driver and providers by writing
> and reading syscon registers for the StarFive JH7110 RISC-V SoC. And add 
> documentation and nodes to describe StarFive System Controller(syscon)
> Registers. This patch serises are based on Linux 6.4.
> 
> PLLs are high speed, low jitter frequency synthesizers in JH7110.
> Each PLL clock works in integer mode or fraction mode by some dividers,
> and the dividers are set in several syscon registers.
> The formula for calculating frequency is: 
> Fvco = Fref * (NI + NF) / M / Q1
> 
> The first patch adds docunmentation to describe PLL clock bindings,
> and the second patch adds documentation to decribe syscon registers.
> The patch 3 modifies the SYSCRG bindings and adds PLL clock inputs.
> The patch 4 adds driver to support PLL clocks for JH7110.
> The patch 5 modifies the system clock driver and can select the PLL clock
> source from PLL clocks driver. And the patch 6 adds the 
> stg/sys/aon syscon nodes for JH7110 SoC. The last patch modifies the 
> syscrg node in JH7110 dts file.

Just FYI, I have picked up the binding & clock portions of this series
and your other one adding the stg syscon. I've pushed them out here for
the test robots to have a look:
https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux.git/log/?h=clk-starfive

If that passes, my plan is to send Stephen a PR for the lot, later this
week.

Thanks,
Conor.
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