From ecc8a96e251dc43d13841bac44fbfa34ec20fc52 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 28 Sep 2017 19:20:32 -0500 Subject: of/fdt: add of_fdt_device_is_available function Add an equivalent function to of_device_is_available for flattened DT, and convert the one existing open coded occurrence. Tested-by: Nicolas Pitre Reviewed-by: Frank Rowand Signed-off-by: Rob Herring --- drivers/of/fdt.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers/of') diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 27c535af0be8..f8c39705418b 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -132,6 +132,19 @@ bool of_fdt_is_big_endian(const void *blob, unsigned long node) return false; } +static bool of_fdt_device_is_available(const void *blob, unsigned long node) +{ + const char *status = fdt_getprop(blob, node, "status", NULL); + + if (!status) + return true; + + if (!strcmp(status, "ok") || !strcmp(status, "okay")) + return true; + + return false; +} + /** * of_fdt_match - Return true if node matches a list of compatible values */ @@ -605,7 +618,6 @@ static int __init __fdt_scan_reserved_mem(unsigned long node, const char *uname, int depth, void *data) { static int found; - const char *status; int err; if (!found && depth == 1 && strcmp(uname, "reserved-memory") == 0) { @@ -625,8 +637,7 @@ static int __init __fdt_scan_reserved_mem(unsigned long node, const char *uname, return 1; } - status = of_get_flat_dt_prop(node, "status", NULL); - if (status && strcmp(status, "okay") != 0 && strcmp(status, "ok") != 0) + if (!of_fdt_device_is_available(initial_boot_params, node)) return 0; err = __reserved_mem_reserve_reg(node, uname); -- cgit v1.2.3