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drm/i915/psr: Avoid unnecessary DPCD read of DP_PSR_CAPS

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intel_dp->psr_dpcd already has the required values.

Cc: Jose Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Tarun Vyas <tarun.vyas@intel.com>
Reviewed-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180511195145.3829-4-dhinakaran.pandiyan@intel.com
This commit is contained in:
Dhinakaran Pandiyan
2018-05-11 12:51:43 -07:00
committed by Jani Nikula
parent 84bb2916a6
commit 1e8b251ebc
1 changed files with 1 additions and 10 deletions
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11
drivers/gpu/drm/i915/intel_psr.c
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@@ -197,15 +197,6 @@ void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir)
}
}
static bool intel_dp_get_y_coord_required(struct intel_dp *intel_dp)
{
uint8_t psr_caps = 0;
if (drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_CAPS, &psr_caps) != 1)
return false;
return psr_caps & DP_PSR2_SU_Y_COORDINATE_REQUIRED;
}
static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp)
{
uint8_t dprx = 0;
@@ -271,7 +262,7 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
* GTC first.
*/
dev_priv->psr.sink_psr2_support =
intel_dp_get_y_coord_required(intel_dp);
intel_dp->psr_dpcd[1] & DP_PSR2_SU_Y_COORDINATE_REQUIRED;
DRM_DEBUG_KMS("PSR2 %ssupported\n",
dev_priv->psr.sink_psr2_support ? "" : "not ");