[Intel-gfx] [PATCH 2/2] drm/i915/mtl: Copy c10 phy pll sw state from master to slave for bigjoiner

[Kalvala, Haridhar]

On 4/21/2023 3:42 AM, Radhakrishna Sripada wrote:
> From: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
>
> We try to verify pll registers in sw state for slave crtc with the hw state.
> However in case of bigjoiner we don't calculate those at all, so this verification
> will then always fail.
> So we should either skip the verification for Bigjoiner slave crtc or copy sw state
> from master crtc.
>
> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
Acked-by: Haridhar Kalvala <haridhar.kalvala at intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_display.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index bf391a6cd8d6..83c98791fea3 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -4556,6 +4556,7 @@ copy_bigjoiner_crtc_state_modeset(struct intel_atomic_state *state,
>   	drm_mode_copy(&slave_crtc_state->hw.adjusted_mode,
>   		      &master_crtc_state->hw.adjusted_mode);
>   	slave_crtc_state->hw.scaling_filter = master_crtc_state->hw.scaling_filter;
> +	slave_crtc_state->cx0pll_state = master_crtc_state->cx0pll_state;
>   
>   	copy_bigjoiner_crtc_state_nomodeset(state, slave_crtc);
>   

-- 
Regards,
Haridhar Kalvala