omap: RX-51: Drop I2C-1 speed to 2200
Aaro Koskinen [Wed, 14 Oct 2009 16:56:34 +0000 (09:56 -0700)]
The I2C-1 bus frequency on RX-51 should be 2.2 MHz. The speed is limited
by TWL5030/GAIA; a higher speed could lead to errors on the interface. The
maximum speed depends on the system clock for GAIA: 2.2 MHz (if 19.2 MHz),
2.4 MHz (26 MHz) or 2.9 MHz (38.4 MHz).

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-rx51-peripherals.c

index c1af532..2b0eb1b 100644 (file)
@@ -444,7 +444,7 @@ static int __init rx51_i2c_init(void)
                rx51_twldata.vaux3 = &rx51_vaux3_cam;
                rx51_twldata.vmmc2 = &rx51_vmmc2;
        }
-       omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
+       omap_register_i2c_bus(1, 2200, rx51_peripherals_i2c_board_info_1,
                        ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
        omap_register_i2c_bus(2, 100, NULL, 0);
        omap_register_i2c_bus(3, 400, NULL, 0);