From 15ac7afe515631ec36966b1cf632a87276536f57 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 11 Dec 2009 16:16:32 -0800 Subject: 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 Cc: Benoit Cousson Signed-off-by: Paul Walmsley Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/mux.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/arm/plat-omap/mux.c') 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"); -- cgit v1.2.3