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| author | Andy Walls <awalls@radix.net> | 2008-06-21 21:27:00 -0400 |
|---|---|---|
| committer | Andy Walls <awalls@radix.net> | 2008-06-21 21:27:00 -0400 |
| commit | b411d7f2288ce688fe67db8c157a7721b70bc20d (patch) | |
| tree | 613fdf0c2d0d9e8a51ce7b671b5a1110876ebf17 /linux/drivers/media/video/cx18/cx18-cards.c | |
| parent | 5a55e327df413ef74d0e96632acc04ca47944641 (diff) | |
| download | mediapointer-dvb-s2-b411d7f2288ce688fe67db8c157a7721b70bc20d.tar.gz mediapointer-dvb-s2-b411d7f2288ce688fe67db8c157a7721b70bc20d.tar.bz2 | |
cx18: Add I2C slave reset via GPIO upon initialization
From: Andy Walls <awalls@radix.net>
cx18: Add I2C slave reset via GPIO upon initialization. One user,
Michael <msd4824@yahoo.com>, 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 <awalls@radix.net>
Diffstat (limited to 'linux/drivers/media/video/cx18/cx18-cards.c')
| -rw-r--r-- | linux/drivers/media/video/cx18/cx18-cards.c | 10 |
1 files changed, 10 insertions, 0 deletions
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, }; |