On Thu, 09 Jan 2020, Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx> wrote:
> On dsi cmd mode we do not receive vblanks instead
> we would get TE and these flags indicate TE is expected on
> which port.
>
> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/icl_dsi.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index 3ad8cedb5211..6f760ea316d8 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -1502,6 +1502,24 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,
> pipe_config->hw.adjusted_mode.private_flags &=
> ~I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE;
>
> + /*
> + * In case of TE GATE cmd mode, we
> + * receive TE from the slave if
> + * dual link is enabled
> + */
> + if (is_cmd_mode(intel_dsi)) {
> + if (intel_dsi->ports == (BIT(PORT_B) | BIT(PORT_A)))
> + pipe_config->hw.adjusted_mode.private_flags |=
> + I915_MODE_FLAG_DSI_USE_TE1 |
> + I915_MODE_FLAG_DSI_USE_TE0;
> + else if (intel_dsi->ports == BIT(PORT_B))
> + pipe_config->hw.adjusted_mode.private_flags |=
> + I915_MODE_FLAG_DSI_USE_TE1;
> + else
> + pipe_config->hw.adjusted_mode.private_flags |=
> + I915_MODE_FLAG_DSI_USE_TE0;
> + }
> +
> return 0;
> }
--
Jani Nikula, Intel Open Source Graphics Center
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