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authorNikolaus Voss <n.voss@weinmann.de>2011-11-08 12:11:03 +0100
committerWolfram Sang <w.sang@pengutronix.de>2012-09-12 14:49:13 +0200
commit774c8018d2566207c92f47b6421dad7d88bbfd49 (patch)
treebe022382705834ed86595fc90045863a9cc82118
parentfac368a040484293006bb488e67972aafcf88ec7 (diff)
arm: at91: 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> Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com> Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c6
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 ac1b0f8c3b3..0fcd8718770 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -686,18 +686,12 @@ 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);
}