Re: [PATCH v3 2/9] clk: renesas: r9a08g045: Add clocks and resets support for PCIe

Geert Uytterhoeven
2025-08-04T10:50:11Z

On Fri, 4 Jul 2025 at 18:14, Claudiu <claudiu.beznea@tuxon.dev> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>
> Add clocks and resets for the PCIe IP available on the Renesas RZ/G3S SoC.
> The clkl1pm clock is required for PCIe link power management (PM) control
> and should be enabled based on the state of the CLKREQ# pin. Therefore,
> mark it as a no_pm clock to allow the PCIe driver to manage it during link
> PM transitions.
>
> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Thanks for your patch!

> --- a/drivers/clk/renesas/r9a08g045-cpg.c
> +++ b/drivers/clk/renesas/r9a08g045-cpg.c
> @@ -289,6 +289,10 @@ static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = {
> MSTOP(BUS_MCPU2, BIT(14))),
> DEF_MOD("tsu_pclk", R9A08G045_TSU_PCLK, R9A08G045_CLK_TSU, 0x5ac, 0,
> MSTOP(BUS_MCPU2, BIT(15))),
> + DEF_MOD("pci_aclk", R9A08G045_PCI_ACLK, R9A08G045_CLK_M0, 0x608, 0,
> + MSTOP(BUS_PERI_COM, BIT(10))),
> + DEF_MOD("pci_clk1pm", R9A08G045_PCI_CLKL1PM, R9A08G045_CLK_ZT, 0x608, 1,

pci_clkl1pm

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

Gr{oetje,eeting}s,

Geert

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

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