tegra124: set MOT bit for I2C-over-AUX

Hardware / Coreboot - Ken Chang [nvidia.com] - 15 December 2014 13:18 UTC

According to DP version 1.2a, The MOT (Middle-of-Transaction) bit must be set when the I2C transaction does not stop with the current AUX transaction. Thus the correct steps for an I2C read shall be: 1. I2C command write with MOT set to 1 2. I2C command read to the same address with MOT set to 0

BUG=chrome-os-partner:27679 TEST=EDID data read from LP140WH8 panel is correct while it's a repeated pattern of the first 16 bytes without this CL BRANCH=none

Original-Change-Id: I0526beffb8852fbbe0eb5bb80e370261617a59b8

2d43a48 tegra124: set MOT bit for I2C-over-AUX
src/soc/nvidia/tegra124/dp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Upstream: review.coreboot.org

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