Mikita Lipski 1e7e7a541e drm/amd/display: Check if clock source in use before disabling
commit ad8960a6cb06c446d0a391ce095f6f28edf36aff upstream.

[why]
We are disabling clock source while other pipes are still using
it, because we don't verify the number of pipes that share it.

[how]
- Adding a function in resources to return the number of pipes
sharing the clock source.
- Checking that no one is sharing the clock source before disabling

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-15 09:46:59 +02:00
2018-04-15 17:21:30 -07:00
2017-11-17 17:45:29 -08:00
2018-09-09 10:32:43 +02:00

Linux kernel
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