From b411d7f2288ce688fe67db8c157a7721b70bc20d Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Sat, 21 Jun 2008 21:27:00 -0400 Subject: cx18: Add I2C slave reset via GPIO upon initialization From: Andy Walls cx18: Add I2C slave reset via GPIO upon initialization. One user, Michael , has reported this allows his HVR-1600 EEPROM to be consistently recognized when using (long,) 100 msec delays. The delays in this commit are nominal (10 & 40 msec) and need testing/tuning on boards with I2C problems to find the right values. Signed-off-by: Andy Walls --- linux/drivers/media/video/cx18/cx18-cards.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'linux/drivers/media/video/cx18/cx18-cards.c') diff --git a/linux/drivers/media/video/cx18/cx18-cards.c b/linux/drivers/media/video/cx18/cx18-cards.c index c18865b0d..bbf23fa45 100644 --- a/linux/drivers/media/video/cx18/cx18-cards.c +++ b/linux/drivers/media/video/cx18/cx18-cards.c @@ -82,6 +82,11 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; @@ -122,6 +127,11 @@ static const struct cx18_card cx18_card_hvr1600_samsung = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; -- cgit v1.2.3