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drm/i915/chv: Add vlv_pipe_to_channel

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Cherryview has 3 pipes.  Some of the pll dpio offset calculation is
based on pipe number.  Need to use vlv_pipe_to_channel to calculate the
correct phy channel to use for the pipe.

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chon Ming Lee 2014-04-09 13:28:16 +03:00 committed by Daniel Vetter
parent 00fc31b72e
commit eb69b0e59a
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/i915/intel_drv.h
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@ -570,6 +570,20 @@ vlv_dport_to_channel(struct intel_digital_port *dport)
}
}
static inline int
vlv_pipe_to_channel(enum pipe pipe)
{
switch (pipe) {
case PIPE_A:
case PIPE_C:
return DPIO_CH0;
case PIPE_B:
return DPIO_CH1;
default:
BUG();
}
}
static inline struct drm_crtc *
intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
{