Hi Ulf,
On Mon, Apr 22, 2024 at 12:54 PM Claudiu <claudiu.beznea@xxxxxxxxx> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
>
> Series adds support for power domains on rzg2l driver.
>
> RZ/G2L kind of devices support a functionality called MSTOP (module
> stop/standby). According to hardware manual the module could be switch
> to standby after its clocks are disabled. The reverse order of operation
> should be done when enabling a module (get the module out of standby,
> enable its clocks etc).
>
> In [1] the MSTOP settings were implemented by adding code in driver
> to attach the MSTOP state to the IP clocks. But it has been proposed
> to implement it as power domain. The result is this series.
>
> The DT bindings were updated with power domain IDs (plain integers
> that matches the DT with driver data structures). The current DT
> bindings were updated with module IDs for the modules listed in tables
> with name "Registers for Module Standby Mode" (see HW manual) exception
> being RZ/G3S where, due to the power down functionality, the DDR,
> TZCDDR, OTFDE_DDR were also added.
>
> Domain IDs were added to all SoC specific bindings.
>
> Thank you,
> Claudiu Beznea
>
> Changes in v4:
> - dropped the pwrdn functionality until it is better understanded
> - dropped patch "clk: renesas: rzg2l-cpg: Add suspend/resume
> support for power domains" from v3; this will be replaced
> by propertly calling device_set_wakup_path() in serial console
> driver
> - instantiated the watchdog domain in r8a08g045 clock driver; this
> allow applying r9a08g045 clock patch w/o affecting watchdog and later,
> after all good with watchdog patches series at [2], only patch
> "arm64: dts: renesas: r9a08g045: Update #power-domain-cells = <1>"
> will need to be applied
Are you happy with this series? I would like to queue patches 1-7 in
renesas-clk for v6.10 (i.e. this week).
Thank you!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
