On Thu, Sep 28, 2017 at 3:45 AM, Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> Since "/firmware" does not have its own "compatible" property as it's
> just collection of nodes representing firmware interface, it's sub-nodes
> are not populated during system initialization.
>
> Currently different firmware drivers search the /firmware/ node and
> populate the sub-node devices selectively. Instead we can populate
> the /firmware/ node during init to avoid more drivers continuing to
> populate the devices selectively.
>
> To generalize the solution this patch populates the /firmware/ node
> explicitly from of_platform_default_populate_init().
>
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
Acked-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Tested-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> ---
Andy, as you picked patch 2/4 into your v4.16 -next branch we no
longer probe the qcom_scm device, causing various breakage. Can you
please pick this patch as well (it has Rob's ack).
Regards,
Bjorn
> drivers/of/platform.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/of/platform.c b/drivers/of/platform.c
> index ac15d0e3d27d..3a213a6aee89 100644
> --- a/drivers/of/platform.c
> +++ b/drivers/of/platform.c
> @@ -515,6 +515,10 @@ static int __init of_platform_default_populate_init(void)
> of_platform_device_create(node, NULL, NULL);
> }
>
> + node = of_find_node_by_path("/firmware");
> + if (node)
> + of_platform_populate(node, NULL, NULL, NULL);
> +
> /* Populate everything else. */
> of_platform_default_populate(NULL, NULL, NULL);
>
> --
> 2.7.4
>
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