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ARM: omap2+: mux: Allow board mux settings to be NULL

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OMAP4 has two mux instances, and the board may not have settings
for one of them.  Allow the board file to pass NULL for an
instance's mux settings, which will initialize the mux instance
but skip writing board settings.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Colin Cross 2011-05-31 12:00:09 -07:00 committed by Tony Lindgren
parent 1499f2dbaf
commit d4ff6121b4
1 changed files with 3 additions and 0 deletions
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3
arch/arm/mach-omap2/mux.c
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@ -83,6 +83,9 @@ void omap_mux_write(struct omap_mux_partition *partition, u16 val,
void omap_mux_write_array(struct omap_mux_partition *partition, void omap_mux_write_array(struct omap_mux_partition *partition,
struct omap_board_mux *board_mux) struct omap_board_mux *board_mux)
{ {
if (!board_mux)
return;
while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) { while (board_mux->reg_offset != OMAP_MUX_TERMINATOR) {
omap_mux_write(partition, board_mux->value, omap_mux_write(partition, board_mux->value,
board_mux->reg_offset); board_mux->reg_offset);