diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/alchemy/board-gpr.c | 4 | ||||
| -rw-r--r-- | arch/mips/ath79/mach-pb44.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c index daebc36e5ecb..328d697e72b4 100644 --- a/arch/mips/alchemy/board-gpr.c +++ b/arch/mips/alchemy/board-gpr.c @@ -235,6 +235,10 @@ static struct gpiod_lookup_table gpr_i2c_gpiod_table = { }; static struct i2c_gpio_platform_data gpr_i2c_data = { + /* + * The open drain mode is hardwired somewhere or an electrical + * property of the alchemy GPIO controller. + */ .sda_is_open_drain = 1, .scl_is_open_drain = 1, .udelay = 2, /* ~100 kHz */ diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c index a95409063847..6b2c6f3baefa 100644 --- a/arch/mips/ath79/mach-pb44.c +++ b/arch/mips/ath79/mach-pb44.c @@ -37,9 +37,9 @@ static struct gpiod_lookup_table pb44_i2c_gpiod_table = { .dev_id = "i2c-gpio", .table = { GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SDA, - NULL, 0, GPIO_ACTIVE_HIGH), + NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SCL, - NULL, 1, GPIO_ACTIVE_HIGH), + NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), }, }; |