From 40bacf1631a3e8654b1128aa9b72e73ca801c9e4 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 23 Dec 2009 03:23:21 -0500 Subject: 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 Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/radeon/radeon_device.c') 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); -- cgit v1.2.3