On Mon, Mar 12, 2018 at 08:46:45PM -0700, Dhinakaran Pandiyan wrote:
> Non-functional change useful for the following patch.
>
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_psr.c | 31 ++++++++++++++++++++-----------
> 1 file changed, 20 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> index 975ebb51c7af..86d6c19c9ae6 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,
> --
> 2.14.1
>
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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