From: Thierry Reding <tred...@nvidia.com> This is useful to retrieve the U-Boot bus number of an I2C controller given a device tree node.
Signed-off-by: Thierry Reding <tred...@nvidia.com> --- drivers/i2c/tegra_i2c.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/i2c/tegra_i2c.c b/drivers/i2c/tegra_i2c.c index 257b72f0f7cd..94453765369d 100644 --- a/drivers/i2c/tegra_i2c.c +++ b/drivers/i2c/tegra_i2c.c @@ -21,6 +21,7 @@ DECLARE_GLOBAL_DATA_PTR; /* Information about i2c controller */ struct i2c_bus { + int node; int id; enum periph_id periph_id; int speed; @@ -400,6 +401,7 @@ static int process_nodes(const void *blob, int node_list[], int count, continue; i2c_bus = &i2c_controllers[i]; + i2c_bus->node = node; i2c_bus->id = i; if (i2c_get_config(blob, node, i2c_bus)) { @@ -624,6 +626,17 @@ int tegra_i2c_get_dvc_bus_num(void) return -1; } +int i2c_get_bus_num_fdt(int node) +{ + unsigned int i; + + for (i = 0; i < TEGRA_I2C_NUM_CONTROLLERS; i++) + if (node == i2c_controllers[i].node) + return i; + + return -1; +} + /* * Register soft i2c adapters */ -- 2.0.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot