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-rw-r--r--arch/arm/plat-omap/mux.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 6c798d2..75211f2 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -83,10 +83,21 @@ int __init_or_module omap_cfg_reg(const unsigned long index)
reg |= OMAP24XX_PULL_ENA;
if(cfg->pu_pd_val)
reg |= OMAP24XX_PULL_UP;
-#ifdef CONFIG_OMAP_MUX_DEBUG
- printk("Muxing %s (0x%08x): 0x%02x -> 0x%02x\n",
- cfg->name, OMAP24XX_L4_BASE + cfg->mux_reg,
- omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg), reg);
+#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
+ {
+ u8 orig = omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg);
+ u8 debug = 0;
+
+#ifdef CONFIG_OMAP_MUX_DEBUG
+ debug = cfg->debug;
+#endif
+ warn = (orig != reg);
+ if (debug || warn)
+ printk("MUX: setup %s (0x%08x): 0x%02x -> 0x%02x\n",
+ cfg->name,
+ OMAP24XX_L4_BASE + cfg->mux_reg,
+ orig, reg);
+ }
#endif
omap_writeb(reg, OMAP24XX_L4_BASE + cfg->mux_reg);
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