diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-18 18:47:15 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-20 09:53:52 +0200 |
| commit | d4dcbdceabe4d447d292457bdbd877a0a9532d45 (patch) | |
| tree | 0cb380c517fd86cd5c9339d3a30dfdca7e70a6f6 /drivers/gpu/drm/i915/intel_psr.c | |
| parent | 6f32ea7e81d32dda9ec5c81cf37aad75eb7b8495 (diff) | |
drm/i915/psr: Use ->get_aux_send_ctl functions
I just wanted to get rid of the rmw cycle for gen9, but this also
fixes some bugs we haven't carried over, like using recommended
precharge and timeout values.
Also I noticed that we don't set the fastwake sync length on skl, and
that's used by PSR2 selective updates. Fix that.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Sonika Jindal <sonika.jindal@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: "Pandiyan, Dhinakaran" <dhinakaran.pandiyan@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463590036-17824-6-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index e08751cf9586..29a09bf6bd18 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -176,7 +176,6 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; uint32_t aux_clock_divider; i915_reg_t aux_ctl_reg; - int precharge = 0x3; static const uint8_t aux_msg[] = { [0] = DP_AUX_NATIVE_WRITE << 4, [1] = DP_SET_POWER >> 8, @@ -185,6 +184,7 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) [4] = DP_SET_POWER_D0, }; enum port port = dig_port->port; + u32 aux_ctl; int i; BUILD_BUG_ON(sizeof(aux_msg) > 20); @@ -211,26 +211,9 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) I915_WRITE(psr_aux_data_reg(dev_priv, port, i >> 2), intel_dp_pack_aux(&aux_msg[i], sizeof(aux_msg) - i)); - if (INTEL_INFO(dev)->gen >= 9) { - uint32_t val; - - val = I915_READ(aux_ctl_reg); - val &= ~DP_AUX_CH_CTL_TIME_OUT_MASK; - val |= DP_AUX_CH_CTL_TIME_OUT_1600us; - val &= ~DP_AUX_CH_CTL_MESSAGE_SIZE_MASK; - val |= (sizeof(aux_msg) << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT); - /* Use hardcoded data values for PSR, frame sync and GTC */ - val &= ~DP_AUX_CH_CTL_PSR_DATA_AUX_REG_SKL; - val &= ~DP_AUX_CH_CTL_FS_DATA_AUX_REG_SKL; - val &= ~DP_AUX_CH_CTL_GTC_DATA_AUX_REG_SKL; - I915_WRITE(aux_ctl_reg, val); - } else { - I915_WRITE(aux_ctl_reg, - DP_AUX_CH_CTL_TIME_OUT_400us | - (sizeof(aux_msg) << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | - (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) | - (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT)); - } + aux_ctl = intel_dp->get_aux_send_ctl(intel_dp, 0, sizeof(aux_msg), + aux_clock_divider); + I915_WRITE(aux_ctl_reg, aux_ctl); } static void vlv_psr_enable_source(struct intel_dp *intel_dp) |