[U-Boot] [PATCH v2 3/5] pmic_fsl: Introduce CONFIG_SYS_FSL_PMIC_I2C_LENGTH

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Introduce CONFIG_SYS_FSL_PMIC_I2C_LENGTH to configure the number of bytes
that are used to communicate with the PMIC via I2C.

Instead of hardcoding the value, pass the number via a config option.

This will be useful for adding support for PMIC MC34704 from Freescale, which 
uses only one byte in its I2C protocol.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v2:
- No changes. Newly introduced in this series

 drivers/misc/pmic_fsl.c    |    2 +-
 include/configs/mx35pdk.h  |    1 +
 include/configs/mx53evk.h  |    1 +
 include/configs/mx53loco.h |    1 +
 4 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/pmic_fsl.c b/drivers/misc/pmic_fsl.c
index 0ff75ed..40c448b 100644
--- a/drivers/misc/pmic_fsl.c
+++ b/drivers/misc/pmic_fsl.c
@@ -53,7 +53,7 @@ int pmic_init(void)
 #elif defined(CONFIG_PMIC_I2C)
 	p->interface = PMIC_I2C;
 	p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR;
-	p->hw.i2c.tx_num = 3;
+	p->hw.i2c.tx_num = CONFIG_SYS_FSL_PMIC_I2C_LENGTH;
 	p->bus = I2C_PMIC;
 #else
 #error "You must select CONFIG_PMIC_SPI or CONFIG_PMIC_I2C"
diff --git a/include/configs/mx35pdk.h b/include/configs/mx35pdk.h
index 69bd654..3998d76 100644
--- a/include/configs/mx35pdk.h
+++ b/include/configs/mx35pdk.h
@@ -69,6 +69,7 @@
 #define CONFIG_PMIC_I2C
 #define CONFIG_PMIC_FSL
 #define CONFIG_SYS_FSL_PMIC_I2C_ADDR	0x08
+#define CONFIG_SYS_FSL_PMIC_I2C_LENGTH	3
 #define CONFIG_RTC_MC13XXX
 
 /*
diff --git a/include/configs/mx53evk.h b/include/configs/mx53evk.h
index 832050e..f7b11c0 100644
--- a/include/configs/mx53evk.h
+++ b/include/configs/mx53evk.h
@@ -59,6 +59,7 @@
 #define CONFIG_PMIC_I2C
 #define CONFIG_PMIC_FSL
 #define CONFIG_SYS_FSL_PMIC_I2C_ADDR    8
+#define CONFIG_SYS_FSL_PMIC_I2C_LENGTH	3
 #define CONFIG_RTC_MC13XXX
 
 /* MMC Configs */
diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 6a6aaa1..fd454d5 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -96,6 +96,7 @@
 #define CONFIG_PMIC_FSL
 #define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR	0x48
 #define CONFIG_SYS_FSL_PMIC_I2C_ADDR	0x8
+#define CONFIG_SYS_FSL_PMIC_I2C_LENGTH	3
 
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
-- 
1.7.9.5