drm/nouveau: Put back the old 2-messages I2C slave test.

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I was hoping we could detect I2C devices at a given address without
actually writing data into them, but apparently some DDC slaves get
confused with 0-bytes transactions. Put the good old test back.

Reported-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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Francisco Jerez 2010-07-23 23:17:57 +02:00 • committed by Ben Skeggs

parent e04d8e829d

commit f1feda70b5

1 changed files with 15 additions and 4 deletions

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drivers/gpu/drm/nouveau/nouveau_i2c.c

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