diff options
| author | Imre Deak <[email protected]> | 2018-12-20 17:52:11 +0200 |
|---|---|---|
| committer | Imre Deak <[email protected]> | 2019-01-31 16:31:22 +0200 |
| commit | 2b34e562361f6e440524272187432c551b57481e (patch) | |
| tree | c2dc72e72dd362d4954e074ead55e0099cca7ef3 | |
| parent | 828ccb31cf410a1a01e2bdc2a3cf0dd5aabb755d (diff) | |
drm/i915/icl: Work around broken VBTs for port F detection
VBT may include incorrect information about the presence of port F. Work
around this on SKUs where we know the port is not present.
v2:
- Fix IS_ICL_WITH_PORT_F, so it's useable from any context.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108915
Cc: Mika Kahola <[email protected]>
Cc: Jani Nikula <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Reviewed-by: Dhinakaran Pandiyan <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 22da9df1f0a7..f11c66d172d3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2353,6 +2353,8 @@ static inline unsigned int i915_sg_segment_size(void) INTEL_INFO(dev_priv)->gt == 3) #define IS_CNL_WITH_PORT_F(dev_priv) (IS_CANNONLAKE(dev_priv) && \ (INTEL_DEVID(dev_priv) & 0x0004) == 0x0004) +#define IS_ICL_WITH_PORT_F(dev_priv) (IS_ICELAKE(dev_priv) && \ + INTEL_DEVID(dev_priv) != 0x8A51) #define IS_ALPHA_SUPPORT(intel_info) ((intel_info)->is_alpha_support) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b0bb8adcf26f..4424b4c90578 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -14376,8 +14376,10 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv) /* * On some ICL SKUs port F is not present. No strap bits for * this, so rely on VBT. + * Work around broken VBTs on SKUs known to have no port F. */ - if (intel_bios_is_port_present(dev_priv, PORT_F)) + if (IS_ICL_WITH_PORT_F(dev_priv) && + intel_bios_is_port_present(dev_priv, PORT_F)) intel_ddi_init(dev_priv, PORT_F); icl_dsi_init(dev_priv); |