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authorTony Lindgren <tony@atomide.com>2009-12-11 16:16:32 -0800
committerTony Lindgren <tony@atomide.com>2009-12-11 16:16:32 -0800
commit15ac7afe515631ec36966b1cf632a87276536f57 (patch)
tree68fae5c0154ccf441468569c0d763b32c3b90f21 /arch/arm/plat-omap/mux.c
parent92c9f5018997dbc5f5e91eae2400d78ada2760b0 (diff)
omap: mux: Add new style pin multiplexing code for omap3
Initially only for 34xx. This code allows us to: - Make the code more generic as the omap internal signal names can stay the same across omap generations for some devices - Map mux registers to GPIO registers that is needed for dynamic muxing of pins during off-idle - Override bootloader mux values via kernel cmdline using omap_mux=some.signa1=0x1234,some.signal2=0x1234 - View and set the mux registers via debugfs if CONFIG_DEBUG_FS is enabled Cc: Mike Rapoport <mike@compulab.co.il> Cc: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/mux.c')
-rw-r--r--arch/arm/plat-omap/mux.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 05aebcad215b..06703635ace1 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -54,8 +54,12 @@ int __init_or_module omap_cfg_reg(const unsigned long index)
{
struct pin_config *reg;
- if (cpu_is_omap44xx())
- return 0;
+ if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+ printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
+ index);
+ WARN_ON(1);
+ return -EINVAL;
+ }
if (mux_cfg == NULL) {
printk(KERN_ERR "Pin mux table not initialized\n");