i2c-pxa: Add polling transfer

Add polling I2C transfer implementation for PXA I2C. This is needed
for cases where I2C transactions have to occur at times interrups are
disabled.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/asm-arm/arch-pxa/i2c.h b/include/asm-arm/arch-pxa/i2c.h
index e404b233d8a8..80596b013443 100644
--- a/include/asm-arm/arch-pxa/i2c.h
+++ b/include/asm-arm/arch-pxa/i2c.h
@@ -65,7 +65,13 @@ struct i2c_pxa_platform_data {
         unsigned int            slave_addr;
         struct i2c_slave_client *slave;
         unsigned int            class;
+        int                     use_pio;
 };
 
 extern void pxa_set_i2c_info(struct i2c_pxa_platform_data *info);
+
+#ifdef CONFIG_PXA27x
+extern void pxa_set_i2c_power_info(struct i2c_pxa_platform_data *info);
+#endif
+
 #endif