linux-kernel - Re: [PATCH 1/3] drm/panel: ltk050h3146w: add mipi_dsi_device.mode_flags to of_match

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Message-ID: <7091bd70-d7d1-8e88-d0d9-22ec944ff9df@theobroma-systems.com>
Date:   Tue, 3 May 2022 17:23:21 +0200
From:   Quentin Schulz <quentin.schulz@...obroma-systems.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     thierry.reding@...il.com, sam@...nborg.org, airlied@...ux.ie,
        daniel@...ll.ch, robh+dt@...nel.org,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Quentin Schulz <foss+kernel@...il.net>
Subject: Re: [PATCH 1/3] drm/panel: ltk050h3146w: add
 mipi_dsi_device.mode_flags to of_match_data

Hi all,

Seems I'm not the only one who forgot about this patch series, so, 
kindly pinging :)

Thanks!
Quentin

On 1/31/22 17:47, quentin.schulz@...obroma-systems.com wrote:
> From: Quentin Schulz <quentin.schulz@...obroma-systems.com>
> 
> To prepare for a new display to be supported by this driver which has a
> slightly different set of DSI mode related flags, let's move the
> currently hardcoded mode flags to the .data field of of_device_id
> structure.
> 
> Cc: Quentin Schulz <foss+kernel@...il.net>
> Signed-off-by: Quentin Schulz <quentin.schulz@...obroma-systems.com>
> ---
>   drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> index a5a414920430..67eb474e28c6 100644
> --- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
> @@ -25,6 +25,7 @@ struct ltk050h3146w_cmd {
>   
>   struct ltk050h3146w;
>   struct ltk050h3146w_desc {
> +	const unsigned long mode_flags;
>   	const struct drm_display_mode *mode;
>   	int (*init)(struct ltk050h3146w *ctx);
>   };
> @@ -339,6 +340,8 @@ static const struct drm_display_mode ltk050h3146w_mode = {
>   static const struct ltk050h3146w_desc ltk050h3146w_data = {
>   	.mode = &ltk050h3146w_mode,
>   	.init = ltk050h3146w_init_sequence,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
>   };
>   
>   static int ltk050h3146w_a2_select_page(struct ltk050h3146w *ctx, int page)
> @@ -433,6 +436,8 @@ static const struct drm_display_mode ltk050h3146w_a2_mode = {
>   static const struct ltk050h3146w_desc ltk050h3146w_a2_data = {
>   	.mode = &ltk050h3146w_a2_mode,
>   	.init = ltk050h3146w_a2_init_sequence,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
>   };
>   
>   static int ltk050h3146w_unprepare(struct drm_panel *panel)
> @@ -592,8 +597,7 @@ static int ltk050h3146w_probe(struct mipi_dsi_device *dsi)
>   
>   	dsi->lanes = 4;
>   	dsi->format = MIPI_DSI_FMT_RGB888;
> -	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> -			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
> +	dsi->mode_flags = ctx->panel_desc->mode_flags;
>   
>   	drm_panel_init(&ctx->panel, &dsi->dev, &ltk050h3146w_funcs,
>   		       DRM_MODE_CONNECTOR_DSI);