diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2018-03-06 13:41:55 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2018-03-16 15:35:26 +0300 |
| commit | 84d4ebdb6c72988a1acddb1856b12427a287149d (patch) | |
| tree | b89849bb16bfc28905d6ae72263883a3fa70c9a6 /drivers/gpu/drm/i915 | |
| parent | 963976cfe9c54d4d9e725e61c90c47a4af6b5ea2 (diff) | |
| download | linux-84d4ebdb6c72988a1acddb1856b12427a287149d.tar.xz | |
drm/i915/icl: do not save DDI A/E sharing bit for ICL
We don't want to preserve the DDI A 4 lane bit on ICL.
Fixes: 3d2011cfa41f ("drm/i915/icl: remove port A/E lane sharing limitation.")
Cc: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
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/20180306104155.3526-1-jani.nikula@intel.com
(cherry picked from commit 1e6aa7e55c28ecd842b8b4599e4273c2429ee061)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index ac8fc2a44ac6..dbcf1a0586f9 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -3080,9 +3080,12 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); intel_encoder->cloneable = 0; - intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & - (DDI_BUF_PORT_REVERSAL | - DDI_A_4_LANES); + if (INTEL_GEN(dev_priv) >= 11) + intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & + DDI_BUF_PORT_REVERSAL; + else + intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & + (DDI_BUF_PORT_REVERSAL | DDI_A_4_LANES); intel_dig_port->dp.output_reg = INVALID_MMIO_REG; intel_dig_port->max_lanes = intel_ddi_max_lanes(intel_dig_port); |