[PATCH RESEND v3 1/2] drm: introduce bus_flags in drm_display_info

[Daniel Vetter]

On Wed, May 04, 2016 at 10:08:59PM -0700, Stefan Agner wrote:
> Introduce bus_flags to specify display bus properties like signal
> polarities. This is useful for parallel display buses, e.g. to
> specify the pixel clock or data enable polarity.
> 
> Suggested-by: Thierry Reding <thierry.reding at gmail.com>
> Acked-by: Philipp Zabel <p.zabel at pengutronix.de>
> Acked-by: Manfred Schlaegl <manfred.schlaegl at gmx.at>
> Acked-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> Signed-off-by: Stefan Agner <stefan at agner.ch>

In case this wasn't clear: That ack is good enough to just smash this
patch into your fsl-dcu tree and send a pull request to Dave for it. No
need to resend the patches. Just mention in the pull that you have stuff
included outside of your driver, and that it's all acked.
-Daniel

> ---
>  drivers/gpu/drm/panel/panel-simple.c | 2 ++
>  include/drm/drm_crtc.h               | 9 +++++++++
>  2 files changed, 11 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index ceb2048..77ae07f 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -72,6 +72,7 @@ struct panel_desc {
>  	} delay;
>  
>  	u32 bus_format;
> +	u32 bus_flags;
>  };
>  
>  struct panel_simple {
> @@ -144,6 +145,7 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
>  	if (panel->desc->bus_format)
>  		drm_display_info_set_bus_formats(&connector->display_info,
>  						 &panel->desc->bus_format, 1);
> +	connector->display_info.bus_flags = panel->desc->bus_flags;
>  
>  	return num;
>  }
> diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
> index 4acdaf5..d1559cd 100644
> --- a/include/drm/drm_crtc.h
> +++ b/include/drm/drm_crtc.h
> @@ -118,6 +118,14 @@ enum subpixel_order {
>  #define DRM_COLOR_FORMAT_RGB444		(1<<0)
>  #define DRM_COLOR_FORMAT_YCRCB444	(1<<1)
>  #define DRM_COLOR_FORMAT_YCRCB422	(1<<2)
> +
> +#define DRM_BUS_FLAG_DE_LOW		(1<<0)
> +#define DRM_BUS_FLAG_DE_HIGH		(1<<1)
> +/* drive data on pos. edge */
> +#define DRM_BUS_FLAG_PIXDATA_POSEDGE	(1<<2)
> +/* drive data on neg. edge */
> +#define DRM_BUS_FLAG_PIXDATA_NEGEDGE	(1<<3)
> +
>  /*
>   * Describes a given display (e.g. CRT or flat panel) and its limitations.
>   */
> @@ -139,6 +147,7 @@ struct drm_display_info {
>  
>  	const u32 *bus_formats;
>  	unsigned int num_bus_formats;
> +	u32 bus_flags;
>  
>  	/* Mask of supported hdmi deep color modes */
>  	u8 edid_hdmi_dc_modes;
> -- 
> 2.8.2
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch