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| author | Vandana Kannan <vandana.kannan@intel.com> | 2014-08-19 12:05:01 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-04-14 13:55:24 +0200 |
| commit | c776eb2edfce88f0a44156b417cac3da11d1f944 (patch) | |
| tree | f902a5a193e1918dc0bf0a203960929de820efbc /drivers/gpu/drm/i915 | |
| parent | e3a290553f3b09b657962e0a952fcf9b117bc08b (diff) | |
| download | lwn-c776eb2edfce88f0a44156b417cac3da11d1f944.tar.gz lwn-c776eb2edfce88f0a44156b417cac3da11d1f944.zip | |
drm/i915/bxt: don't use unsupported port detection
The port detection register flags in SFUSE_STRAP and DDI_BUF_CTL_A are
not defined for BXT, so don't use them.
Suggested by Satheesh.
v2:
- DDI_BUF_CTL_A bit 0 is not useful on BXT. Making changes to use this
bit when simulator or BXT is not applicable. Code re-arranged as per
Damien's suggestion.
v3:
- clarify commit message, add code comment (imre)
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> (v2)
Cc: M, Satheeshakrishna <satheeshakrishna.m@intel.com>
Cc: Lespiau, Damien <damien.lespiau@intel.com>
Cc: Shankar, Uma <uma.shankar@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 75955fee6d24..d35f40649247 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13011,7 +13011,16 @@ static void intel_setup_outputs(struct drm_device *dev) if (intel_crt_present(dev)) intel_crt_init(dev); - if (HAS_DDI(dev)) { + if (IS_BROXTON(dev)) { + /* + * FIXME: Broxton doesn't support port detection via the + * DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to + * detect the ports. + */ + intel_ddi_init(dev, PORT_A); + intel_ddi_init(dev, PORT_B); + intel_ddi_init(dev, PORT_C); + } else if (HAS_DDI(dev)) { int found; /* |