lkml.org 
[lkml]   [2012]   [Apr]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Date
    Subject[PATCH v10 4/4] G45 TWI: remove open drain setting for twi function gpios
    The G45 datasheets explicitly states that setting the open drain property
    on peripheral function gpios is not allowed. (How about other A91 chips?)

    Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
    ---
    arch/arm/mach-at91/at91sam9g45_devices.c | 6 ------
    1 files changed, 0 insertions(+), 6 deletions(-)

    diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
    index adda9a9..90ed482 100644
    --- a/arch/arm/mach-at91/at91sam9g45_devices.c
    +++ b/arch/arm/mach-at91/at91sam9g45_devices.c
    @@ -688,18 +688,12 @@ void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, in
    /* pins used for TWI interface */
    if (i2c_id == 0) {
    at91_set_A_periph(AT91_PIN_PA20, 0); /* TWD */
    - at91_set_multi_drive(AT91_PIN_PA20, 1);
    -
    at91_set_A_periph(AT91_PIN_PA21, 0); /* TWCK */
    - at91_set_multi_drive(AT91_PIN_PA21, 1);

    platform_device_register(&at91sam9g45_twi0_device);
    } else {
    at91_set_A_periph(AT91_PIN_PB10, 0); /* TWD */
    - at91_set_multi_drive(AT91_PIN_PB10, 1);
    -
    at91_set_A_periph(AT91_PIN_PB11, 0); /* TWCK */
    - at91_set_multi_drive(AT91_PIN_PB11, 1);

    platform_device_register(&at91sam9g45_twi1_device);
    }
    --
    1.7.5.4


    \
     
     \ /
      Last update: 2012-04-20 12:21    [W:0.024 / U:151.644 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site