[PATCH v7 00/11] clk: imx8: add new clock binding for better pm support

[Shawn Guo]

On Wed, Jul 29, 2020 at 04:00:07PM +0800, Dong Aisheng wrote:
> This patch series is a preparation for the MX8 Architecture improvement.
> As for IMX SCU based platforms like MX8QM and MX8QXP, they are comprised
> of a couple of SS(Subsystems) while most of them within the same SS
> can be shared. e.g. Clocks, Devices and etc.
> 
> However, current clock binding is using SW IDs for device tree to use
> which can cause troubles in writing the common <soc>-ss-xx.dtsi file for
> different SoCs.
> 
> This patch series aims to introduce a new binding which is more close to
> hardware and platform independent and can makes us write a more general
> drivers for different SCU based SoCs.
> 
> Another important thing is that on MX8, each Clock resource is associated
> with a power domain. So we have to attach that clock device to the power
> domain in order to make it work properly. Further more, the clock state
> will be lost when its power domain is completely off during suspend/resume,
> so we also introduce the clock state save&restore mechanism.
> 
> It's based on latest shanw/for-next branch.
> 
> The top commit is:
> 3c1a41dab7b8 Merge branch 'imx/defconfig' into for-next
> 
> ChangeLog:
> v6->v7:
>  * addressed all comments from Stephen
>  * rebased to latest shawn/for-next
> v5->v6:
>  * add scu clk unregister if add provider failed
> v4->v5:
>  * Address all comments from Stephen
> v3->v4:
>  * use clk-indices for LPCG to fetch each clks offset from dt
> v2->v3:
>  * change scu clk into two cells binding
>  * add clk pm patches to ease the understand of the changes
> v1->v2:
>  * SCU clock changed to one cell clock binding inspired by arm,scpi.txt
>    Documentation/devicetree/bindings/arm/arm,scpi.txt
>  * Add required power domain property
>  * Dropped PATCH 3&4 first, will send the updated version accordingly
>    after the binding is finally determined,
> 
> Dong Aisheng (11):
>   dt-bindings: firmware: imx-scu: new binding to parse clocks from
>     device tree
>   dt-bindings: clock: imx-lpcg: add support to parse clocks from device
>     tree
>   clk: imx: scu: add two cells binding support
>   clk: imx: scu: bypass cpu power domains
>   clk: imx: scu: allow scu clk to take device pointer
>   clk: imx: scu: add runtime pm support
>   clk: imx: scu: add suspend/resume support
>   clk: imx: imx8qxp-lpcg: add parsing clocks from device tree
>   clk: imx: lpcg: allow lpcg clk to take device pointer
>   clk: imx: clk-imx8qxp-lpcg: add runtime pm support
>   clk: imx: lpcg: add suspend/resume support

Applied all, thanks.