On Tue, 19 Nov 2019, Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx> wrote:
> As per the Bspec, port mapping is fixed for mipi dsi.
>
> v2: Reuse the existing function (Jani)
>
> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
Pushed, thanks for the patch.
BR,
Jani.
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 17 +++++++++++------
> 1 file changed, 11 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 23f00a651738..dccb94b24d14 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -10577,16 +10577,21 @@ static void haswell_get_ddi_port_state(struct intel_crtc *crtc,
> struct intel_crtc_state *pipe_config)
> {
> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> + enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
> struct intel_shared_dpll *pll;
> enum port port;
> u32 tmp;
>
> - tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
> -
> - if (INTEL_GEN(dev_priv) >= 12)
> - port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
> - else
> - port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
> + if (transcoder_is_dsi(cpu_transcoder)) {
> + port = (cpu_transcoder == TRANSCODER_DSI_A) ?
> + PORT_A : PORT_B;
> + } else {
> + tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
> + if (INTEL_GEN(dev_priv) >= 12)
> + port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
> + else
> + port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
> + }
>
> if (INTEL_GEN(dev_priv) >= 11)
> icelake_get_ddi_pll(dev_priv, port, pipe_config);
--
Jani Nikula, Intel Open Source Graphics Center
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