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authorTony Lindgren <tony@atomide.com>2008-01-25 00:42:48 -0800
committerTony Lindgren <tony@atomide.com>2008-04-14 09:57:11 -0700
commit7d7f665d5dac8d19f2fcb56baea09c59a3f861be (patch)
tree2fdfd5e07f0a258b64bb5921b982dbc8b1025444 /arch/arm/plat-omap
parent672e302e3c04e40e7c236cb09159f593f24f5def (diff)
downloadop-kernel-dev-7d7f665d5dac8d19f2fcb56baea09c59a3f861be.zip
op-kernel-dev-7d7f665d5dac8d19f2fcb56baea09c59a3f861be.tar.gz
ARM: OMAP: Allow registering pin mux function
This patch changes pin multiplexing init to allow registering custom function. The omap_cfg_reg() func will be split into omap processor specific functions in later patch. This is done to make adding omap3 pin multiplexing easier. Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/mux.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 75211f2..d881379 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -36,17 +36,17 @@
#define OMAP24XX_PULL_ENA (1 << 3)
#define OMAP24XX_PULL_UP (1 << 4)
-static struct pin_config * pin_table;
-static unsigned long pin_table_sz;
+static struct omap_mux_cfg *mux_cfg;
-extern struct pin_config * omap730_pins;
-extern struct pin_config * omap1xxx_pins;
-extern struct pin_config * omap24xx_pins;
-
-int __init omap_mux_register(struct pin_config * pins, unsigned long size)
+int __init omap_mux_register(struct omap_mux_cfg *arch_mux_cfg)
{
- pin_table = pins;
- pin_table_sz = size;
+ if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0
+ || !arch_mux_cfg->cfg_reg) {
+ printk(KERN_ERR "Invalid pin table\n");
+ return -EINVAL;
+ }
+
+ mux_cfg = arch_mux_cfg;
return 0;
}
@@ -64,17 +64,19 @@ int __init_or_module omap_cfg_reg(const unsigned long index)
pull_orig = 0, pull = 0;
unsigned int mask, warn = 0;
- if (!pin_table)
- BUG();
+ if (mux_cfg == NULL) {
+ printk(KERN_ERR "Pin mux table not initialized\n");
+ return -ENODEV;
+ }
- if (index >= pin_table_sz) {
+ if (index >= mux_cfg->size) {
printk(KERN_ERR "Invalid pin mux index: %lu (%lu)\n",
- index, pin_table_sz);
+ index, mux_cfg->size);
dump_stack();
return -ENODEV;
}
- cfg = (struct pin_config *)&pin_table[index];
+ cfg = (struct pin_config *)&mux_cfg->pins[index];
if (cpu_is_omap24xx()) {
u8 reg = 0;
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