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| author | Christian Eggers <[email protected]> | 2020-10-09 11:03:20 +0000 |
|---|---|---|
| committer | Wolfram Sang <[email protected]> | 2020-12-02 20:28:20 +0000 |
| commit | 61e6fe59ede155881a622f5901551b1cc8748f6a (patch) | |
| tree | 862c85c425fc9500c197b9b5b3f39fabead5aab5 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | i2c: imx: Check for I2SR_IAL after every byte (diff) | |
| download | kernel-61e6fe59ede155881a622f5901551b1cc8748f6a.tar.gz kernel-61e6fe59ede155881a622f5901551b1cc8748f6a.zip | |
i2c: imx: Don't generate STOP condition if arbitration has been lost
If arbitration is lost, the master automatically changes to slave mode.
I2SR_IBB may or may not be reset by hardware. Raising a STOP condition
by resetting I2CR_MSTA has no effect and will not clear I2SR_IBB.
So calling i2c_imx_bus_busy() is not required and would busy-wait until
timeout.
Signed-off-by: Christian Eggers <[email protected]>
Tested (not extensively) on Vybrid VF500 (Toradex VF50):
Tested-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Oleksij Rempel <[email protected]>
Cc: [email protected] # Requires trivial backporting, simple remove
# the 3rd argument from the calls to
# i2c_imx_bus_busy().
Signed-off-by: Wolfram Sang <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions