RE: [PATCH] clk: renesas: r9a07g044: Add WDT2 clocks to critical list

From: Biju Das
Date: Mon Sep 19 2022 - 09:35:41 EST


Hi Prabhakar,

> Subject: [PATCH] clk: renesas: r9a07g044: Add WDT2 clocks to critical
> list
>
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Add the WDT2 clocks to r9a07g044_crit_mod_clks[] list as WDT CH2 is
> specifically to check the operation of Cortex-M33 CPU on the RZ/{G2L,
> G2LC, V2L} SoCs and we dont want to turn off the clocks of
> WDT2 if it isn't enabled by Cortex-A55.
>
> This patch is in preparation to disable WDT CH2 from the RZ/G2L (alike
> SoCs) DTS/I by default.
>
> Reported-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
> drivers/clk/renesas/r9a07g044-cpg.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/clk/renesas/r9a07g044-cpg.c
> b/drivers/clk/renesas/r9a07g044-cpg.c
> index 02a4fc41bb6e..cf9b1bd73792 100644
> --- a/drivers/clk/renesas/r9a07g044-cpg.c
> +++ b/drivers/clk/renesas/r9a07g044-cpg.c
> @@ -412,6 +412,8 @@ static const unsigned int
> r9a07g044_crit_mod_clks[] __initconst = {
> MOD_CLK_BASE + R9A07G044_GIC600_GICCLK,
> MOD_CLK_BASE + R9A07G044_IA55_CLK,
> MOD_CLK_BASE + R9A07G044_DMAC_ACLK,
> + MOD_CLK_BASE + R9A07G044_WDT2_PCLK,
> + MOD_CLK_BASE + R9A07G044_WDT2_CLK,

Do we need to turn on this clock unnecessarily?

Cheers,
Biju