Quoting Peng Fan (OSS) (2022-10-27 03:11:58)
> From: Jacky Bai <ping.bai@xxxxxxx>
>
> During Linux System suspend/resume stress test after System Sleep
> enabled, system will stuck sometimes. It is because NICMIX is powered
> down, which HSIOMIX(always on) is not powered down. When NICMIX
> powering down, HSIOMIX will get a hardware handshake, without HSIO ROOT
> clk, the handshake will lose. Then after NICMIX power on when system
> resume, the access to HSIOMIX through NICMIX would be broken. So keep HSIO
> ROOT always on.
>
> Reviewed-by: Peng Fan <peng.fan@xxxxxxx>
> Signed-off-by: Jacky Bai <ping.bai@xxxxxxx>
> [Peng Fan] rewrite commit message
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
> drivers/clk/imx/clk-imx93.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c
> index 422ad3c89845..74e8d810db7f 100644
> --- a/drivers/clk/imx/clk-imx93.c
> +++ b/drivers/clk/imx/clk-imx93.c
> @@ -109,7 +109,7 @@ static const struct imx93_clk_root {
> { IMX93_CLK_CCM_CKO2, "ccm_cko2_root", 0x1d00, CKO2_SEL, },
> { IMX93_CLK_CCM_CKO3, "ccm_cko3_root", 0x1d80, CKO1_SEL, },
> { IMX93_CLK_CCM_CKO4, "ccm_cko4_root", 0x1e00, CKO2_SEL, },
> - { IMX93_CLK_HSIO, "hsio_root", 0x1e80, LOW_SPEED_IO_SEL, },
> + { IMX93_CLK_HSIO, "hsio_root", 0x1e80, LOW_SPEED_IO_SEL, CLK_IS_CRITICAL},
Similarly add a comment for critical flag please.
