drm/amd/display: add i2c_hw_Status check to make sure as HW I2c in use

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1. Add i2c_hw_Status check to make sure when HW i2c is in use.
2. Don't reset HW engine in is_hw_busy() and instead do this in
process_transaction() because SW i2c does not check if hw i2c is in use

Signed-off-by: Derek Lai <Derek.Lai@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Derek Lai 2019-05-22 14:49:23 +08:00 • committed by Alex Deucher

parent 0bfb01ce90

commit f092200418

2 changed files with 43 additions and 27 deletions

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65

drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c

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5

drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.h

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