> From: Dong Aisheng <aisheng.dong@xxxxxxx>
> Sent: Friday, March 5, 2021 9:18 PM
>
> Do not power off console domain in runtime pm.
>
> Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Sorry, Shawn, please ignore this one which was already included in
[PATCH v5 18/18] firmware: imx: scu-pd: do not power off console Domain
Regards
Aisheng
> ---
> drivers/firmware/imx/scu-pd.c | 27 ++++++++++++++++++++++++++-
> 1 file changed, 26 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c
> index 53b49ef20014..b3848080db75 100644
> --- a/drivers/firmware/imx/scu-pd.c
> +++ b/drivers/firmware/imx/scu-pd.c
> @@ -86,6 +86,7 @@ struct imx_sc_pd_soc {
> u8 num_ranges;
> };
>
> +int imx_con_rsrc;
> bool imx_scu_pd_initialized;
>
> /*
> @@ -209,6 +210,23 @@ to_imx_sc_pd(struct generic_pm_domain *genpd)
> return container_of(genpd, struct imx_sc_pm_domain, pd); }
>
> +static void imx_sc_pd_get_console_rsrc(void) {
> + struct of_phandle_args specs;
> + int ret;
> +
> + if (!of_stdout)
> + return;
> +
> + ret = of_parse_phandle_with_args(of_stdout, "power-domains",
> + "#power-domain-cells",
> + 0, &specs);
> + if (ret)
> + return;
> +
> + imx_con_rsrc = specs.args[0];
> +}
> +
> static int imx_sc_pd_power(struct generic_pm_domain *domain, bool
> power_on) {
> struct imx_sc_msg_req_set_resource_power_mode msg; @@ -269,6
> +287,7 @@ imx_scu_add_pm_domain(struct device *dev, int idx,
> const struct imx_sc_pd_range *pd_ranges) {
> struct imx_sc_pm_domain *sc_pd;
> + bool is_off = true;
> int ret;
>
> if (!imx_sc_rm_is_resource_owned(pm_ipc_handle, pd_ranges->rsrc + idx))
> @@ -290,6 +309,10 @@ imx_scu_add_pm_domain(struct device *dev, int idx,
> "%s", pd_ranges->name);
>
> sc_pd->pd.name = sc_pd->name;
> + if (imx_con_rsrc == sc_pd->rsrc) {
> + sc_pd->pd.flags = GENPD_FLAG_RPM_ALWAYS_ON;
> + is_off = false;
> + }
>
> if (sc_pd->rsrc >= IMX_SC_R_LAST) {
> dev_warn(dev, "invalid pd %s rsrc id %d found", @@ -299,7 +322,7
> @@ imx_scu_add_pm_domain(struct device *dev, int idx,
> return NULL;
> }
>
> - ret = pm_genpd_init(&sc_pd->pd, NULL, true);
> + ret = pm_genpd_init(&sc_pd->pd, NULL, is_off);
> if (ret) {
> dev_warn(dev, "failed to init pd %s rsrc id %d",
> sc_pd->name, sc_pd->rsrc);
> @@ -365,6 +388,8 @@ static int imx_sc_pd_probe(struct platform_device
> *pdev)
> if (!pd_soc)
> return -ENODEV;
>
> + imx_sc_pd_get_console_rsrc();
> +
> ret = imx_scu_init_pm_domains(&pdev->dev, pd_soc);
> if (!ret)
> imx_scu_pd_initialized = true;
> --
> 2.23.0
