From 6b61a83b31744d143b0e7bc92f463d831319eabc Mon Sep 17 00:00:00 2001 From: vikram pandita Date: Sun, 22 Nov 2009 10:11:31 -0800 Subject: omap3: zoom: Drop i2c-1 speed to 2400 The I2C-1 bus frequency on zoom2/zoom3/sdp3630 should be 2.4 MHz. The speed is limited by TWL5030/GAIA; a higher speed could lead to errors on the interface. The maximum I2C speed depends on the system clock for GAIA: 2.2 MHz (sys-clk = 19.2 MHz) 2.4 MHz (sys-clk = 26 MHz) 2.9 MHz (sys-clk = 38.4 MHz) For Zoom2/Zoom3/SDP3630 the system clock is 26Mhz and hence choose 2.4Mhz for I2C1 bus speed Signed-off-by: Vikram Pandita Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-zoom-peripherals.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) mode change 100644 => 100755 arch/arm/mach-omap2/board-zoom-peripherals.c (limited to 'arch') diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c old mode 100644 new mode 100755 index 3535b7a73af..f14baa39276 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -243,7 +243,7 @@ static struct twl4030_platform_data zoom_twldata = { static struct i2c_board_info __initdata zoom_i2c_boardinfo[] = { { - I2C_BOARD_INFO("twl4030", 0x48), + I2C_BOARD_INFO("twl5030", 0x48), .flags = I2C_CLIENT_WAKE, .irq = INT_34XX_SYS_NIRQ, .platform_data = &zoom_twldata, @@ -252,7 +252,7 @@ static struct i2c_board_info __initdata zoom_i2c_boardinfo[] = { static int __init omap_i2c_init(void) { - omap_register_i2c_bus(1, 2600, zoom_i2c_boardinfo, + omap_register_i2c_bus(1, 2400, zoom_i2c_boardinfo, ARRAY_SIZE(zoom_i2c_boardinfo)); omap_register_i2c_bus(2, 400, NULL, 0); omap_register_i2c_bus(3, 400, NULL, 0); -- cgit v1.2.3