diff options
| author | Simon Glass <sjg@chromium.org> | 2012-04-02 13:19:01 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:39 +0200 |
| commit | e31c1e50ac8d85ede3f62c438034397ba54734d7 (patch) | |
| tree | a79cb7e9ffb14902c2b8a017949598384da807bc /arch | |
| parent | 1f47efa87a00dd98d61937c7040c8d2590d8b16f (diff) | |
| download | blackbird-obmc-uboot-e31c1e50ac8d85ede3f62c438034397ba54734d7.tar.gz blackbird-obmc-uboot-e31c1e50ac8d85ede3f62c438034397ba54734d7.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra2/tegra_i2c.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra2/tegra_i2c.h b/arch/arm/include/asm/arch-tegra2/tegra_i2c.h index 0a7d99c585..cfb136c466 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 |
