From eb69b0e59ac845666b7b284ca83a1fef17ebaa9f Mon Sep 17 00:00:00 2001 From: Chon Ming Lee Date: Wed, 9 Apr 2014 13:28:16 +0300 Subject: [PATCH] drm/i915/chv: Add vlv_pipe_to_channel 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 Reviewed-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_drv.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 9d5816d06b53..acfc5c853b38 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -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) { -- 2.20.1