From: Jani Nikula Date: Thu, 28 Sep 2017 08:21:57 +0000 (+0300) Subject: drm/i915/bios: parse DDI ports also for CHV for HDMI DDC pin and DP AUX channel X-Git-Tag: v4.15-rc1~90^2~30^2~41 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=348e4058ebf53904e817eec7a1b25327143c2ed2;p=linux.git drm/i915/bios: parse DDI ports also for CHV for HDMI DDC pin and DP AUX channel 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 Cc: stable@vger.kernel.org Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/d0815082cb98487618429b62414854137049b888.1506586821.git.jani.nikula@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index b881ce8596ee..0a1159761ffd 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -1240,7 +1240,7 @@ static void parse_ddi_ports(struct drm_i915_private *dev_priv, { enum port port; - if (!HAS_DDI(dev_priv)) + if (!HAS_DDI(dev_priv) && !IS_CHERRYVIEW(dev_priv)) return; if (!dev_priv->vbt.child_dev_num)