tree 171c0c841e6ba743084fade941c0bffc1c9e798c
parent fec46b5eff854df5647a9f4724e45dd33933855a
author Damien Lespiau <damien.lespiau@intel.com> 1364224574 +0000
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1364235660 +0100

drm/i915: Warn if a pipe is enabled with a bogus port

If TRANS_DDI_FUNC_CTL has been wrongly programmed with an incorrect
port, we are currently trying to read PORT_CLK_SEL(port) with an
uninitialized value.

Handle that case by returning PORT_CLK_SEL_NONE and warning about it.

v2: Move the warning inside intel_ddi_get_crtc_pll (Paulo Zanoni)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>