[PATCH] ARM i.MX: add debug for iomux-v3

[Sascha Hauer]

iomux setup often is the source of great fun. Add some debug printf
for it.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-imx/iomux-v3.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-imx/iomux-v3.c b/arch/arm/mach-imx/iomux-v3.c
index 680d260..5d7a244 100644
--- a/arch/arm/mach-imx/iomux-v3.c
+++ b/arch/arm/mach-imx/iomux-v3.c
@@ -37,6 +37,10 @@ int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
 	u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
 	u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
 
+	debug("%s: mux 0x%08x -> 0x%04x pad: 0x%08x -> 0x%04x sel_inp: 0x%08x -> 0x%04x\n",
+			__func__, mux_mode, mux_ctrl_ofs, pad_ctrl, pad_ctrl_ofs, sel_input,
+			sel_input_ofs);
+
 	if (mux_ctrl_ofs)
 		__raw_writel(mux_mode, base + mux_ctrl_ofs);
 
-- 
1.7.10.4