diff options
| author | Dhinakaran Pandiyan | 2018-03-13 04:46:45 +0100 |
|---|---|---|
| committer | Rodrigo Vivi | 2018-03-21 21:23:11 +0100 |
| commit | b90eed08d8d0f07f9f08074645d4470e121ff6f5 (patch) | |
| tree | c92264e6f8477f5e66047d5befd4f4baa61482a3 /drivers/gpu/drm/i915/intel_psr.c | |
| parent | drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt (diff) | |
| download | kernel-qcow2-linux-b90eed08d8d0f07f9f08074645d4470e121ff6f5.tar.gz kernel-qcow2-linux-b90eed08d8d0f07f9f08074645d4470e121ff6f5.tar.xz kernel-qcow2-linux-b90eed08d8d0f07f9f08074645d4470e121ff6f5.zip | |
drm/i915/psr: Move PSR aux setup to it's own function.
Non-functional change useful for the following patch.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180313034646.3721-1-dhinakaran.pandiyan@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 317cb4a12693..2c001f4fba3e 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -246,7 +246,7 @@ static i915_reg_t psr_aux_data_reg(struct drm_i915_private *dev_priv, return EDP_PSR_AUX_DATA(index); } -static void hsw_psr_enable_sink(struct intel_dp *intel_dp) +static void hsw_psr_setup_aux(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = dig_port->base.base.dev; @@ -267,6 +267,24 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) BUILD_BUG_ON(sizeof(aux_msg) > 20); aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, 0); + aux_ctl_reg = psr_aux_ctl_reg(dev_priv, port); + + /* Setup AUX registers */ + for (i = 0; i < sizeof(aux_msg); i += 4) + I915_WRITE(psr_aux_data_reg(dev_priv, port, i >> 2), + intel_dp_pack_aux(&aux_msg[i], sizeof(aux_msg) - i)); + + 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 hsw_psr_enable_sink(struct intel_dp *intel_dp) +{ + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = dig_port->base.base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + /* Enable AUX frame sync at sink */ if (dev_priv->psr.aux_frame_sync) @@ -285,16 +303,7 @@ static void hsw_psr_enable_sink(struct intel_dp *intel_dp) drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, DP_PSR_ENABLE); - aux_ctl_reg = psr_aux_ctl_reg(dev_priv, port); - - /* Setup AUX registers */ - for (i = 0; i < sizeof(aux_msg); i += 4) - I915_WRITE(psr_aux_data_reg(dev_priv, port, i >> 2), - intel_dp_pack_aux(&aux_msg[i], sizeof(aux_msg) - i)); - - aux_ctl = intel_dp->get_aux_send_ctl(intel_dp, 0, sizeof(aux_msg), - aux_clock_divider); - I915_WRITE(aux_ctl_reg, aux_ctl); + hsw_psr_setup_aux(intel_dp); } static void vlv_psr_enable_source(struct intel_dp *intel_dp, |