From e31c1e50ac8d85ede3f62c438034397ba54734d7 Mon Sep 17 00:00:00 2001 From: Simon Glass 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 Signed-off-by: Tom Warren --- arch/arm/include/asm/arch-tegra2/tegra_i2c.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/include/asm/arch-tegra2') diff --git a/arch/arm/include/asm/arch-tegra2/tegra_i2c.h b/arch/arm/include/asm/arch-tegra2/tegra_i2c.h index 0a7d99c..cfb136c 100644 --- a/arch/arm/include/asm/arch-tegra2/tegra_i2c.h +++ b/arch/arm/include/asm/arch-tegra2/tegra_i2c.h @@ -154,4 +154,11 @@ struct i2c_ctlr { #define I2C_INT_ARBITRATION_LOST_SHIFT 2 #define I2C_INT_ARBITRATION_LOST_MASK (1 << I2C_INT_ARBITRATION_LOST_SHIFT) +/** + * Returns the bus number of the DVC controller + * + * @return number of bus, or -1 if there is no DVC active + */ +int tegra_i2c_get_dvc_bus_num(void); + #endif -- cgit v1.1