diff options
author | Alex Deucher <alexdeucher@gmail.com> | 2009-12-23 03:23:21 -0500 |
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committer | Dave Airlie <airlied@redhat.com> | 2010-02-09 09:31:10 +1000 |
commit | 40bacf1631a3e8654b1128aa9b72e73ca801c9e4 (patch) | |
tree | 9d4dc63b4dfb124203335dd4e541c657417960ce /drivers/gpu/drm/radeon/radeon_device.c | |
parent | 5a6f98f5bff7f975c61d56b5c756b5a96c4db167 (diff) | |
download | lwn-40bacf1631a3e8654b1128aa9b72e73ca801c9e4.tar.gz lwn-40bacf1631a3e8654b1128aa9b72e73ca801c9e4.zip |
drm/radeon/kms: add support for hw i2c on r1xx-r5xx
wire hw i2c support into radeon i2c algo.
fixes merged:
- handle bus probing correctly
- use meaningful error numbers
- abort if transaction fails
- The line mapping is different depending on the asic.
- protect hw i2c engine with a mutex
- rs300 doesn't have a pin select bit
- r200 has a different pin select setup
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 768b1509fa03..18ac29c505cf 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -638,6 +638,7 @@ int radeon_device_init(struct radeon_device *rdev, mutex_init(&rdev->cs_mutex); mutex_init(&rdev->ib_pool.mutex); mutex_init(&rdev->cp.mutex); + mutex_init(&rdev->dc_hw_i2c_mutex); if (rdev->family >= CHIP_R600) spin_lock_init(&rdev->ih.lock); mutex_init(&rdev->gem.mutex); |