From 2dfc564bda4a31bc4439315448bd4da5182cb397 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 28 Jan 2021 09:28:47 +0100 Subject: [PATCH] soc: renesas: rcar-sysc: Mark device node OF_POPULATED after init The R-Car System Controller (SYSC) driver registers PM domains from an early_initcall(). It does not use a platform driver, as secondary CPU startup on R-Car H1 needs to control the CPU power domains, before initialization of the driver framework. As fw_devlink only considers devices, it does not know that the System Controller is ready. Hence probing of on-chip devices that are part of the SYSC PM domain fails if fw_devlink is enabled: probe deferral - supplier e6180000.system-controller not ready Fix this by setting the OF_POPULATED flag for the SYSC device node after successful initialization. This will make of_link_to_phandle() ignore the SYSC device node as a dependency, and consumer devices will be probed again. Signed-off-by: Geert Uytterhoeven Reviewed-by: Saravana Kannan Link: https://lore.kernel.org/r/20210128082847.2205950-1-geert+renesas@glider.be --- drivers/soc/renesas/rcar-sysc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index d51ddc7d5232..53387a72ca00 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -434,6 +434,8 @@ static int __init rcar_sysc_pd_init(void) } error = of_genpd_add_provider_onecell(np, &domains->onecell_data); + if (!error) + of_node_set_flag(np, OF_POPULATED); out_put: of_node_put(np);