[Intel-gfx] [PATCH 03/14] drm/i915/dsi: Always do panel power up delay on icl+

[Jani Nikula]

On Tue, 25 Apr 2023, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Windows doesn't try any tricks to optimize out the DSI panel power
> delays. Let's follow suit since anything else is entirely untested
> behaviour. Why would the VBT even specify a power on delay if we're
> not supposed to use it?
>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Redundant after c8c2969bfcba ("drm/i915/dsi: Use unconditional msleep()
instead of intel_dsi_msleep()").

> ---
>  drivers/gpu/drm/i915/display/icl_dsi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index 97b889f2b0e2..b35b69227e6f 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -1152,7 +1152,7 @@ static void gen11_dsi_pre_pll_enable(struct intel_atomic_state *state,
>  	struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
>  
>  	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
> -	intel_dsi_msleep(intel_dsi, intel_dsi->panel_on_delay);
> +	msleep(intel_dsi->panel_on_delay);
>  	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
>  
>  	/* step2: enable IO power */

-- 
Jani Nikula, Intel Open Source Graphics Center