[PATCH v7 1/6] soc: renesas: rz-sysc: Add syscon/regmap support

[Geert Uytterhoeven]

Hi John,

On Mon, 18 Aug 2025 at 18:29, John Madieu <john.madieu.xa at bp.renesas.com> wrote:
> The RZ/G3E system controller has various registers that control or report
> some properties specific to individual IPs. The regmap is registered as a
> syscon device to allow these IP drivers to access the registers through the
> regmap API.
>
> As other RZ SoCs might have custom read/write callbacks or max-offsets,
> register a custom regmap configuration.
>
> Signed-off-by: John Madieu <john.madieu.xa at bp.renesas.com>
> [claudiu.beznea:
>  - do not check the match->data validity in rz_sysc_probe() as it is
>    always valid
>  - dinamically allocate regmap_cfg]
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj at bp.renesas.com>

Thanks for the update!

> v7: As this is a duplicate of [2], address comment received there, that is,
>     use kzalloc() + kfree() for regmap_cfg.

You use __free() instead of kfree()...

> --- a/drivers/soc/renesas/rz-sysc.c
> +++ b/drivers/soc/renesas/rz-sysc.c
> @@ -6,8 +6,10 @@
>   */
>

... so you need to include <linux/cleanup.h>

>  #include <linux/io.h>
> +#include <linux/mfd/syscon.h>
>  #include <linux/of.h>
>  #include <linux/platform_device.h>
> +#include <linux/regmap.h>
>  #include <linux/sys_soc.h>
>
>  #include "rz-sysc.h"

Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
i.e. will queue in renesas-devel for v6.18 with the above fixed.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds