diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-05-14 20:24:19 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-05-17 19:29:49 +0300 |
| commit | 6102a8ee8ad60c51b5194e425c3cc8ce43aca384 (patch) | |
| tree | d0637d64dea7323643b9c8d0c45e8ec973a34a11 /drivers/gpu/drm/i915/intel_crt.c | |
| parent | 3f6e9822308127104a7bb007ca569f2c57d03b67 (diff) | |
| download | linux-6102a8ee8ad60c51b5194e425c3cc8ce43aca384.tar.xz | |
drm/i915: Clean up ADPA pipe select bits
Clean up the ADPA pipe select bits. To make the whole situation a bit
less ugly we'll start to share the same code between .get_hw_state()
and the port state asserts.
v2: Order the defines shift,mask,value (Jani)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180514172423.9302-1-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index de0e22322c76..211d601cd1b1 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -63,33 +63,35 @@ static struct intel_crt *intel_attached_crt(struct drm_connector *connector) return intel_encoder_to_crt(intel_attached_encoder(connector)); } +bool intel_crt_port_enabled(struct drm_i915_private *dev_priv, + i915_reg_t adpa_reg, enum pipe *pipe) +{ + u32 val; + + val = I915_READ(adpa_reg); + + /* asserts want to know the pipe even if the port is disabled */ + if (HAS_PCH_CPT(dev_priv)) + *pipe = (val & ADPA_PIPE_SEL_MASK_CPT) >> ADPA_PIPE_SEL_SHIFT_CPT; + else + *pipe = (val & ADPA_PIPE_SEL_MASK) >> ADPA_PIPE_SEL_SHIFT; + + return val & ADPA_DAC_ENABLE; +} + static bool intel_crt_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe) { - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_crt *crt = intel_encoder_to_crt(encoder); - u32 tmp; bool ret; if (!intel_display_power_get_if_enabled(dev_priv, encoder->power_domain)) return false; - ret = false; - - tmp = I915_READ(crt->adpa_reg); - - if (!(tmp & ADPA_DAC_ENABLE)) - goto out; + ret = intel_crt_port_enabled(dev_priv, crt->adpa_reg, pipe); - if (HAS_PCH_CPT(dev_priv)) - *pipe = PORT_TO_PIPE_CPT(tmp); - else - *pipe = PORT_TO_PIPE(tmp); - - ret = true; -out: intel_display_power_put(dev_priv, encoder->power_domain); return ret; @@ -168,11 +170,9 @@ static void intel_crt_set_dpms(struct intel_encoder *encoder, if (HAS_PCH_LPT(dev_priv)) ; /* Those bits don't exist here */ else if (HAS_PCH_CPT(dev_priv)) - adpa |= PORT_TRANS_SEL_CPT(crtc->pipe); - else if (crtc->pipe == 0) - adpa |= ADPA_PIPE_A_SELECT; + adpa |= ADPA_PIPE_SEL_CPT(crtc->pipe); else - adpa |= ADPA_PIPE_B_SELECT; + adpa |= ADPA_PIPE_SEL(crtc->pipe); if (!HAS_PCH_SPLIT(dev_priv)) I915_WRITE(BCLRPAT(crtc->pipe), 0); |