[U-Boot] [PATCH 6/9 v6] TMU: Add TMU support in dtt command

[Akshay Saraswat]

Add generic TMU support alongwith i2c sensors in dtt command
to enable temperature reading in cases where TMU is present
instead of i2c sensors.

Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
---
Changes since v5:
	- Changed 'pirntf' to 'puts'.
	- Added 'return -1' in case of erroneous tmu_state.

 common/cmd_dtt.c |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/common/cmd_dtt.c b/common/cmd_dtt.c
index cd94423..493f643 100644
--- a/common/cmd_dtt.c
+++ b/common/cmd_dtt.c
@@ -28,6 +28,23 @@
 #include <dtt.h>
 #include <i2c.h>
 
+#if defined CONFIG_TMU_CMD_DTT
+#include <tmu.h>
+
+int dtt_get_temp(void)
+{
+	int cur_temp;
+
+	if (tmu_monitor(&cur_temp) == TMU_STATUS_INIT) {
+		puts("TMU is in unknown state, temperature is invalid\n");
+		return -1;
+	} else {
+		printf("Current temperature: %u degrees Celsius\n", cur_temp);
+		return 0;
+	}
+}
+
+#else
 static unsigned long sensor_initialized;
 
 static void _initialize_dtt(void)
@@ -59,9 +76,13 @@ void dtt_init(void)
 	/* switch back to original I2C bus */
 	I2C_SET_BUS(old_bus);
 }
+#endif
 
 int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
+#if defined CONFIG_TMU_CMD_DTT
+	return dtt_get_temp();
+#else
 	int i;
 	unsigned char sensors[] = CONFIG_DTT_SENSORS;
 	int old_bus;
@@ -85,6 +106,7 @@ int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	I2C_SET_BUS(old_bus);
 
 	return 0;
+#endif
 }	/* do_dtt() */
 
 /***************************************************/
-- 
1.7.9.5