From: Ville Syrjälä Date: Tue, 9 Dec 2014 19:28:29 +0000 (+0200) Subject: drm/i915: Fix CRC support for DP port D on CHV X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2be57922d46fdec4360ced2eb108832c5a90bc0e;p=linux-beck.git drm/i915: Fix CRC support for DP port D on CHV Add the missing CRC control register value for DP port D on CHV. Untested as I don't have a CHV machine with DP on port D. Signed-off-by: Ville Syrjälä [danvet: Add a check to only allow DP D on chv, not vlv.] Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index d74b62d0ec72..0779e7f33f42 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -3100,6 +3100,12 @@ static int vlv_pipe_crc_ctl_reg(struct drm_device *dev, *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV; need_stable_symbols = true; break; + case INTEL_PIPE_CRC_SOURCE_DP_D: + if (!IS_CHERRYVIEW(dev)) + return -EINVAL; + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV; + need_stable_symbols = true; + break; case INTEL_PIPE_CRC_SOURCE_NONE: *val = 0; break;