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Subject[PATCH 1/2] of/fdt: add of_fdt_device_is_available function
Date
Add an equivalent function to of_device_is_available for flattened DT, and
convert the one existing open coded occurrence.

Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
drivers/of/fdt.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)

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);
--
2.11.0
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