[Intel-gfx] [PATCH 04/14] drm: Add DSI panel power on/off sequence programming

[Jani Nikula]

On Mon, 09 Jan 2017, Vidya Srinivas <vidya.srinivas at intel.com> wrote:
> Panel Power On/Off sequences are part of Panel spec.
> Enabling the support of same in DRM layer for fine grained
> panel control.

http://lkml.kernel.org/r/20160302152549.GA21035@ulmo.nvidia.com

>
> Signed-off-by: Uma Shankar <uma.shankar at intel.com>
> ---
>  include/drm/drm_panel.h | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
> index 220d1e2b..515595b 100644
> --- a/include/drm/drm_panel.h
> +++ b/include/drm/drm_panel.h
> @@ -69,6 +69,8 @@ struct drm_panel_funcs {
>  	int (*disable)(struct drm_panel *panel);
>  	int (*unprepare)(struct drm_panel *panel);
>  	int (*prepare)(struct drm_panel *panel);
> +	int (*power_on)(struct drm_panel *panel);
> +	int (*power_off)(struct drm_panel *panel);
>  	int (*enable)(struct drm_panel *panel);
>  	int (*get_modes)(struct drm_panel *panel);
>  	int (*get_timings)(struct drm_panel *panel, unsigned int num_timings,
> @@ -166,6 +168,22 @@ static inline int drm_panel_enable(struct drm_panel *panel)
>  	return panel ? -ENOSYS : -EINVAL;
>  }
>  
> +static inline int drm_panel_power_on(struct drm_panel *panel)
> +{
> +	if (panel && panel->funcs && panel->funcs->power_on)
> +		return panel->funcs->power_on(panel);
> +
> +	return panel ? -ENOSYS : -EINVAL;
> +}
> +
> +static inline int drm_panel_power_off(struct drm_panel *panel)
> +{
> +	if (panel && panel->funcs && panel->funcs->power_off)
> +		return panel->funcs->power_off(panel);
> +
> +	return panel ? -ENOSYS : -EINVAL;
> +}
> +
>  /**
>   * drm_panel_get_modes - probe the available display modes of a panel
>   * @panel: DRM panel

-- 
Jani Nikula, Intel Open Source Technology Center