[PATCH 2/3] ARM: i.MX: IIM: Add function to enable permanent write

[Sascha Hauer]

This adds a function to enable/disable permanent write for the IIM
module so that C users no longer have to fiddle with device parameters.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-imx/iim.c              | 10 ++++++++++
 arch/arm/mach-imx/include/mach/iim.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 3aba02f..2e25f69 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -122,6 +122,16 @@ int imx_iim_write_field(uint32_t field, unsigned value)
 	return regmap_write(imx_iim->bank[bank]->map, byte, value);
 }
 
+int imx_iim_permanent_write(int enable)
+{
+	if (!imx_iim)
+		return -ENODEV;
+
+	imx_iim->write_enable = enable;
+
+	return 0;
+}
+
 static int imx_iim_fuse_sense(struct iim_bank *bank, unsigned int row)
 {
 	struct iim_priv *iim = bank->iim;
diff --git a/arch/arm/mach-imx/include/mach/iim.h b/arch/arm/mach-imx/include/mach/iim.h
index f63712e..2161809 100644
--- a/arch/arm/mach-imx/include/mach/iim.h
+++ b/arch/arm/mach-imx/include/mach/iim.h
@@ -99,5 +99,6 @@ static inline int imx25_iim_register_fec_ethaddr(void)
 
 int imx_iim_read_field(uint32_t field, unsigned *value);
 int imx_iim_write_field(uint32_t field, unsigned value);
+int imx_iim_permanent_write(int enable);
 
 #endif /* __MACH_IMX_IIM_H */
-- 
2.8.0.rc3