The clock controller device on r9a06g032 takes all the memory range that is described as being a system controller. This range contains many different (unrelated?) registers besides the ones belonging to the clock controller, that can necessitate to be accessed from other peripherals. For instance, the dmamux registers are there. The dmamux "device" will be described as a child node of the clock/system controller node, which means we need the top device driver (the clock controller driver in this case) to populate its children manually. Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> Acked-by: Stephen Boyd <sboyd@xxxxxxxxxx> --- drivers/clk/renesas/r9a06g032-clocks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c index 052d99059981..1df56d7ab3e1 100644 --- a/drivers/clk/renesas/r9a06g032-clocks.c +++ b/drivers/clk/renesas/r9a06g032-clocks.c @@ -16,6 +16,7 @@ #include <linux/math64.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_clock.h> #include <linux/pm_domain.h> @@ -996,7 +997,7 @@ static int __init r9a06g032_clocks_probe(struct platform_device *pdev) sysctrl_priv = clocks; - return 0; + return of_platform_populate(np, NULL, NULL, dev); } static const struct of_device_id r9a06g032_match[] = { -- 2.27.0