From e31c1e50ac8d85ede3f62c438034397ba54734d7 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 2 Apr 2012 13:19:01 +0000
Subject: tegra: i2c: Add function to find DVC bus

Add tegra_i2c_get_dvc_bus_num() to obtain the I2C bus number of DVC bus.
This allows us to talk to the PMU.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---
 drivers/i2c/tegra_i2c.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'drivers/i2c/tegra_i2c.c')

diff --git a/drivers/i2c/tegra_i2c.c b/drivers/i2c/tegra_i2c.c
index 21f6897..5b6ea0e 100644
--- a/drivers/i2c/tegra_i2c.c
+++ b/drivers/i2c/tegra_i2c.c
@@ -567,3 +567,17 @@ int i2c_set_bus_num(unsigned int bus)
 	return 0;
 }
 #endif
+
+int tegra_i2c_get_dvc_bus_num(void)
+{
+	int i;
+
+	for (i = 0; i < CONFIG_SYS_MAX_I2C_BUS; i++) {
+		struct i2c_bus *bus = &i2c_controllers[i];
+
+		if (bus->inited && bus->is_dvc)
+			return i;
+	}
+
+	return -1;
+}
-- 
cgit v1.1