diff options
Diffstat (limited to 'arch/arm/mach-omap2/i2c.c')
-rw-r--r-- | arch/arm/mach-omap2/i2c.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c new file mode 100644 index 00000000..79c478c4 --- /dev/null +++ b/arch/arm/mach-omap2/i2c.c @@ -0,0 +1,39 @@ +/* + * Helper module for board specific I2C bus registration + * + * Copyright (C) 2009 Nokia Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <plat/cpu.h> +#include <plat/i2c.h> + +#include "mux.h" + +void __init omap2_i2c_mux_pins(int bus_id) +{ + char mux_name[sizeof("i2c2_scl.i2c2_scl")]; + + /* First I2C bus is not muxable */ + if (bus_id == 1) + return; + + sprintf(mux_name, "i2c%i_scl.i2c%i_scl", bus_id, bus_id); + omap_mux_init_signal(mux_name, OMAP_PIN_INPUT); + sprintf(mux_name, "i2c%i_sda.i2c%i_sda", bus_id, bus_id); + omap_mux_init_signal(mux_name, OMAP_PIN_INPUT); +} |