[Intel-gfx] [PATCH v8 04/38] drm/i915/icl: Power on DSI panel

Jani Nikula jani.nikula at intel.com
Wed Oct 31 09:42:34 UTC 2018


On Tue, 30 Oct 2018, Jani Nikula <jani.nikula at intel.com> wrote:
> From: Madhav Chauhan <madhav.chauhan at intel.com>
>
> This patch execute poweron, deassert reset, display on
> VBT sequences and send TURN_ON DSI command to panel for
> powering it up.
>
> Signed-off-by: Madhav Chauhan <madhav.chauhan at intel.com>
> Reviewed-by: Jani Nikula <jani.nikula at intel.com>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Pushed to dinq.

BR,
Jani.

> ---
>  drivers/gpu/drm/i915/icl_dsi.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
> index 9c424adc8b75..d9c91001f107 100644
> --- a/drivers/gpu/drm/i915/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/icl_dsi.c
> @@ -664,6 +664,13 @@ static void gen11_dsi_powerup_panel(struct intel_encoder *encoder)
>  		if (ret < 0)
>  			DRM_ERROR("error setting max return pkt size%d\n", tmp);
>  	}
> +
> +	/* panel power on related mipi dsi vbt sequences */
> +	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
> +	intel_dsi_msleep(intel_dsi, intel_dsi->panel_on_delay);
> +	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
> +	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_INIT_OTP);
> +	intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DISPLAY_ON);
>  }
>  
>  static void __attribute__((unused))

-- 
Jani Nikula, Intel Open Source Graphics Center


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