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of/flattree: Add of_flat_dt_match() helper function

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This patch adds of_flat_dt_match() which tests a node for
compatibility with a list of values and converts the relevant powerpc
platform code to use it.  This approach simplifies the board support
code a bit.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
This commit is contained in:
Grant Likely
2010-10-30 11:49:09 -04:00
parent 73930a85cf
commit a4f740cf33
11 changed files with 89 additions and 78 deletions
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16
arch/powerpc/platforms/52xx/lite5200.c
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@@ -172,20 +172,18 @@ static void __init lite5200_setup_arch(void)
mpc52xx_setup_pci();
}
static const char *board[] __initdata = {
"fsl,lite5200",
"fsl,lite5200b",
NULL,
};
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
static int __init lite5200_probe(void)
{
unsigned long node = of_get_flat_dt_root();
const char *model = of_get_flat_dt_prop(node, "model", NULL);
if (!of_flat_dt_is_compatible(node, "fsl,lite5200") &&
!of_flat_dt_is_compatible(node, "fsl,lite5200b"))
return 0;
pr_debug("%s board found\n", model ? model : "unknown");
return 1;
return of_flat_dt_match(of_get_flat_dt_root(), board);
}
define_machine(lite5200) {