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author | 2009-10-15 08:44:42 +0200 | |
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committer | 2009-10-15 08:44:44 +0200 | |
commit | b226f744d40b052ac126c4cb16c76f66e5185128 (patch) | |
tree | e86f5c059dde241472689cbe2d55429cd15b2d56 /arch/arm/mach-ep93xx/core.c | |
parent | perf tools: Move threads & last_match to threads.c (diff) | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 (diff) | |
download | linux-dev-b226f744d40b052ac126c4cb16c76f66e5185128.tar.xz linux-dev-b226f744d40b052ac126c4cb16c76f66e5185128.zip |
Merge branch 'linus' into perf/core
Merge reason: pick up tools/perf/ changes from upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-ep93xx/core.c')
-rw-r--r-- | arch/arm/mach-ep93xx/core.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index f7ebed942f66..f95dc160c34b 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -550,13 +550,11 @@ void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr) platform_device_register(&ep93xx_eth_device); } -static struct i2c_gpio_platform_data ep93xx_i2c_data = { - .sda_pin = EP93XX_GPIO_LINE_EEDAT, - .sda_is_open_drain = 0, - .scl_pin = EP93XX_GPIO_LINE_EECLK, - .scl_is_open_drain = 0, - .udelay = 2, -}; + +/************************************************************************* + * EP93xx i2c peripheral handling + *************************************************************************/ +static struct i2c_gpio_platform_data ep93xx_i2c_data; static struct platform_device ep93xx_i2c_device = { .name = "i2c-gpio", @@ -564,8 +562,25 @@ static struct platform_device ep93xx_i2c_device = { .dev.platform_data = &ep93xx_i2c_data, }; -void __init ep93xx_register_i2c(struct i2c_board_info *devices, int num) +void __init ep93xx_register_i2c(struct i2c_gpio_platform_data *data, + struct i2c_board_info *devices, int num) { + /* + * Set the EEPROM interface pin drive type control. + * Defines the driver type for the EECLK and EEDAT pins as either + * open drain, which will require an external pull-up, or a normal + * CMOS driver. + */ + if (data->sda_is_open_drain && data->sda_pin != EP93XX_GPIO_LINE_EEDAT) + pr_warning("ep93xx: sda != EEDAT, open drain has no effect\n"); + if (data->scl_is_open_drain && data->scl_pin != EP93XX_GPIO_LINE_EECLK) + pr_warning("ep93xx: scl != EECLK, open drain has no effect\n"); + + __raw_writel((data->sda_is_open_drain << 1) | + (data->scl_is_open_drain << 0), + EP93XX_GPIO_EEDRIVE); + + ep93xx_i2c_data = *data; i2c_register_board_info(0, devices, num); platform_device_register(&ep93xx_i2c_device); } |