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drm/i915: DFSM pipe disable is valid from gen9 onwards (v2) 

It's not just GEN9 platforms that allow for pipes to be disabled via
the DFSM register, but all later platforms as well.

v2: drop pointless parentheses (Ville)

Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181211192545.140081-1-bob.j.paauwe@intel.com
This commit is contained in:
Bob Paauwe 2018-12-11 11:25:45 -08:00 committed by Matt Roper
parent d8e8749802
commit bea68f4a5f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_device_info.c
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@ -811,7 +811,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
DRM_INFO("PipeC fused off\n");
info->num_pipes -= 1;
}
} else if (HAS_DISPLAY(dev_priv) && IS_GEN9(dev_priv)) {
} else if (HAS_DISPLAY(dev_priv) && INTEL_GEN(dev_priv) >= 9) {
u32 dfsm = I915_READ(SKL_DFSM);
u8 disabled_mask = 0;
bool invalid;