Hello Dirk,
Am 28.10.2015 um 11:46 schrieb dirk.eibach@gdsys.cc:
From: Dirk Eibach dirk.eibach@gdsys.cc
With Club 3D dual link adapter there are AUX-channel timeouts when EDID is read. Increasing retry interval time to max (400us) fixes this.
Signed-off-by: Dirk Eibach dirk.eibach@gdsys.cc
board/gdsys/common/dp501.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Heiko Schocher hs@denx.de
except the same comment as patch before ... this file uses a lot of magic values ... maybe this should be fixed?
Hmm... and converting the hole board support to DM would be nice ;-)
bye, Heiko
diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c index baace38..0389fd1 100644 --- a/board/gdsys/common/dp501.c +++ b/board/gdsys/common/dp501.c @@ -88,7 +88,8 @@ void dp501_powerup(u8 addr) dp501_setbits(addr, 0x78, 0x03); /* clear all interrupt */ i2c_reg_write(addr, 0x75, 0xf8); /* aux channel reset */ i2c_reg_write(addr, 0x75, 0x00); /* clear aux channel reset */
- i2c_reg_write(addr, 0x87, 0x70); /* set retry counter as 7 */
i2c_reg_write(addr, 0x87, 0x7f); /* set retry counter as 7
retry interval 400us */if (dp501_detect_cable_adapter(addr)) { printf("DVI/HDMI cable adapter detected\n");