From: Daniel Vetter Date: Wed, 14 Nov 2012 16:47:39 +0000 (+0100) Subject: drm/i915: drop buggy write to FDI_RX_CHICKEN register X-Git-Tag: v3.8-rc1~82^2~14^2~29 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=607a6f7a6621f65706ff536b2615ee65b5c2f575;p=pandora-kernel.git drm/i915: drop buggy write to FDI_RX_CHICKEN register Jani Nikula noticed that the parentheses are wrong and we & the bit with the register address instead of the read-back value. He sent a patch to correct that. On second look, we write the same register in the previous line, and the w/a seems to be to set FDI_RX_PHASE_SYNC_POINTER_OVR to enable the logic, then keep always set FDI_RX_PHASE_SYNC_POINTER_OVR and toggle FDI_RX_PHASE_SYNC_POINTER_EN before/after enabling the pc transcoder. So the right things seems to be to simply kill the 2nd write. Cc: Jani Nikula Reviewed-by: Chris Wilson [danvet: Dropped a bogus ~ from the commit message that somehow crept in.] Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed