From 1e8b251ebcbbfc6bfa826bca4d91a8e1bcad2e5f Mon Sep 17 00:00:00 2001 From: Dhinakaran Pandiyan Date: Fri, 11 May 2018 12:51:43 -0700 Subject: [PATCH] drm/i915/psr: Avoid unnecessary DPCD read of DP_PSR_CAPS intel_dp->psr_dpcd already has the required values. Cc: Jose Roberto de Souza Reviewed-by: Tarun Vyas Reviewed-by: Vathsala Nagaraju Signed-off-by: Dhinakaran Pandiyan Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20180511195145.3829-4-dhinakaran.pandiyan@intel.com --- drivers/gpu/drm/i915/intel_psr.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 26dbb6097981..4f34abcacacf 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -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 "); -- 2.39.5