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[ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio

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The AT91 I2C driver is currently marked as "broken" due to hardware
issues.  This patch enables AT91-based platforms to also use the
bitbanged GPIO for I2C.

This updates platform setup logic (setting up an i2c-gpio device
using the same pins as the i2c-at91 device, unless only the BROKEN
driver is enabled).

Also make use of the new-style initialization of I2C devices using
i2c_register_board_info().

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
2007-11-19 13:47:20 +01:00
committed by Russell King
parent a95c729b74
commit f230d3f53d
19 changed files with 233 additions and 36 deletions
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2
arch/arm/mach-at91/board-picotux200.c
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@@ -139,7 +139,7 @@ static void __init picotux200_board_init(void)
// at91_add_device_udc(&picotux200_udc_data);
// at91_set_multi_drive(picotux200_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */
/* I2C */
at91_add_device_i2c();
at91_add_device_i2c(NULL, 0);
/* SPI */
// at91_add_device_spi(picotux200_spi_devices, ARRAY_SIZE(picotux200_spi_devices));
#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD