diff options
| author | Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> | 2015-10-23 13:01:45 +0300 |
|---|---|---|
| committer | Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> | 2015-11-05 15:14:55 +0200 |
| commit | e9c176d511983d53092dffedc43fd5c176c5ae0f (patch) | |
| tree | 49906e5c2e3033fd0fccbf09503e45006051a4e5 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | f4eb692e8edc600d1b02ad2f1320ee7cae454711 (diff) | |
| download | linux-e9c176d511983d53092dffedc43fd5c176c5ae0f.tar.bz2 | |
drm/i915: Split write of pattern to DP reg from intel_dp_set_link_train
Split the register write with the new link training pattern out of
intel_dp_set_link_train(), so that the i915 specific code is in a
separate function.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445594525-7174-3-git-send-email-ander.conselvan.de.oliveira@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6917dd1d161e..3b695c12606a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3594,20 +3594,28 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp) intel_dp->DP = (intel_dp->DP & ~mask) | signal_levels; } -static bool -intel_dp_set_link_train(struct intel_dp *intel_dp, - uint8_t dp_train_pat) +static void +intel_dp_program_link_training_pattern(struct intel_dp *intel_dp, + uint8_t dp_train_pat) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev); - uint8_t buf[sizeof(intel_dp->train_set) + 1]; - int ret, len; _intel_dp_set_link_train(intel_dp, &intel_dp->DP, dp_train_pat); I915_WRITE(intel_dp->output_reg, intel_dp->DP); POSTING_READ(intel_dp->output_reg); +} + +static bool +intel_dp_set_link_train(struct intel_dp *intel_dp, + uint8_t dp_train_pat) +{ + uint8_t buf[sizeof(intel_dp->train_set) + 1]; + int ret, len; + + intel_dp_program_link_training_pattern(intel_dp, dp_train_pat); buf[0] = dp_train_pat; if ((dp_train_pat & DP_TRAINING_PATTERN_MASK) == |