From: Bjorn Andersson Date: Wed, 11 Oct 2017 05:08:53 +0000 (-0700) Subject: of/platform: Generalize /reserved-memory handling X-Git-Tag: v4.15-rc1~74^2~10^2~3 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a50ff19d0658d8a09026158448894f06a4521f33;p=linux.git of/platform: Generalize /reserved-memory handling By iterating over all /reserved-memory child nodes and match each one to a list of compatibles that we want to treat specially, we can easily extend the list of compatibles to handle - without having to resort to of_platform_populate() that would create unnecessary platform_devices. Reviewed-by: Rob Herring Signed-off-by: Bjorn Andersson Signed-off-by: Andy Gross --- diff --git a/drivers/of/platform.c b/drivers/of/platform.c index ac15d0e3d27d..922b46646bcc 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -497,6 +497,11 @@ int of_platform_default_populate(struct device_node *root, EXPORT_SYMBOL_GPL(of_platform_default_populate); #ifndef CONFIG_PPC +static const struct of_device_id reserved_mem_matches[] = { + { .compatible = "ramoops" }, + {} +}; + static int __init of_platform_default_populate_init(void) { struct device_node *node; @@ -505,15 +510,12 @@ static int __init of_platform_default_populate_init(void) return -ENODEV; /* - * Handle ramoops explicitly, since it is inside /reserved-memory, - * which lacks a "compatible" property. + * Handle certain compatibles explicitly, since we don't want to create + * platform_devices for every node in /reserved-memory with a + * "compatible", */ - node = of_find_node_by_path("/reserved-memory"); - if (node) { - node = of_find_compatible_node(node, NULL, "ramoops"); - if (node) - of_platform_device_create(node, NULL, NULL); - } + for_each_matching_node(node, reserved_mem_matches) + of_platform_device_create(node, NULL, NULL); /* Populate everything else. */ of_platform_default_populate(NULL, NULL, NULL);