Add a comment to the pipe and transcoder enum definitions about our assumption in the code that pipe==transcoder for PIPE_A-C / TRANSCODER_A-C. This means we have to keep the values for these pipe/transcoder enums fixed.
Cc: Ville Syrjälä <[email protected]> Cc: Lucas De Marchi <[email protected]> Cc: Mika Kahola <[email protected]> Signed-off-by: Imre Deak <[email protected]> --- drivers/gpu/drm/i915/intel_display.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.h b/drivers/gpu/drm/i915/intel_display.h index 43eb4ebbcc35..cbb5d79d6a4c 100644 --- a/drivers/gpu/drm/i915/intel_display.h +++ b/drivers/gpu/drm/i915/intel_display.h @@ -43,6 +43,10 @@ enum i915_gpio { GPIOM, }; +/* + * Keep the PIPE_A-C values fixed, we assume that pipe==transcoder for + * these pipes. + */ enum pipe { INVALID_PIPE = -1, @@ -56,6 +60,10 @@ enum pipe { #define pipe_name(p) ((p) + 'A') +/* + * Keep the TRANSCODER_A-C values fixed, we assume that pipe==transcoder for + * these transcoders. + */ enum transcoder { TRANSCODER_A = 0, TRANSCODER_B, -- 2.13.2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
