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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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13
arch/powerpc/platforms/52xx/media5200.c
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@@ -239,7 +239,7 @@ static void __init media5200_setup_arch(void)
}
/* list of the supported boards */
static char *board[] __initdata = {
static const char *board[] __initdata = {
"fsl,media5200",
NULL
};
@@ -249,16 +249,7 @@ static char *board[] __initdata = {
*/
static int __init media5200_probe(void)
{
unsigned long node = of_get_flat_dt_root();
int i = 0;
while (board[i]) {
if (of_flat_dt_is_compatible(node, board[i]))
break;
i++;
}
return (board[i] != NULL);
return of_flat_dt_match(of_get_flat_dt_root(), board);
}
define_machine(media5200_platform) {