3.16.54-rc1 review patch. If anyone has any objections, please let me know.
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From: Jani Nikula jani.nikula@intel.com
commit 348e4058ebf53904e817eec7a1b25327143c2ed2 upstream.
While technically CHV isn't DDI, we do look at the VBT based DDI port info for HDMI DDC pin and DP AUX channel. (We call these "alternate", but they're really just something that aren't platform defaults.)
In commit e4ab73a13291 ("drm/i915: Respect alternate_ddc_pin for all DDI ports") Ville writes, "IIRC there may be CHV system that might actually need this."
I'm not sure why there couldn't be even more platforms that need this, but start conservative, and parse the info for CHV in addition to DDI.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100553 Reported-by: Marek Wilczewski mw@3cte.pl Reviewed-by: Ville Syrjälä ville.syrjala@linux.intel.com Signed-off-by: Jani Nikula jani.nikula@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/d0815082cb98487618429b62414854... [bwh: Backported to 3.16: IS_CHERRYVIEW() takes a drm_device pointer] Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/gpu/drm/i915/intel_bios.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -1007,7 +1007,7 @@ static void parse_ddi_ports(struct drm_i struct drm_device *dev = dev_priv->dev; enum port port;
- if (!HAS_DDI(dev)) + if (!HAS_DDI(dev) && !IS_CHERRYVIEW(dev)) return;
if (!dev_priv->vbt.child_dev_num)