diff options
| author | Damien Lespiau <damien.lespiau@intel.com> | 2012-12-11 18:48:29 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-02-20 00:21:45 +0100 |
| commit | 3e68320ef84528604d971afc3cadfbe208bef001 (patch) | |
| tree | 8218fb517cca5f9b64dbd6bbef9eccf0aba084a2 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | fdfa175d0a9cfa2082ce24e67e284e5acbba452a (diff) | |
drm/i915: Preserve the FDI line reversal override bit on CPT
The FDI link has supported link reversal to make the PCB layout
engineer's life easier for quite a while and we have always presered
this bit as we programmed FDI_RX_CTL with a read/modify/write sequence.
We're trying to take a bit more control over what the BIOS leaves in
various register and with the introduction of DDI, started to program
FDI_RX_CTL fully.
There's a fused bit to indicate DMI link reversal and FDI defaults to
mirroring that configuration. We have a bit to override that behaviour
that we need to preserve from the BIOS.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index d7542cd4abf..64919eee248 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3911,7 +3911,7 @@ #define FDI_10BPC (1<<16) #define FDI_6BPC (2<<16) #define FDI_12BPC (3<<16) -#define FDI_LINK_REVERSE_OVERWRITE (1<<15) +#define FDI_RX_LINK_REVERSAL_OVERRIDE (1<<15) #define FDI_DMI_LINK_REVERSE_MASK (1<<14) #define FDI_RX_PLL_ENABLE (1<<13) #define FDI_FS_ERR_CORRECT_ENABLE (1<<11) |