linux-kernel - Re: [PATCH 2/2] drm: panel: simple: Add AM-1280800N3TZQW-T00H

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Date:   Fri, 28 Aug 2020 20:03:40 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-amarula@...rulasolutions.com
Subject: Re: [PATCH 2/2] drm: panel: simple: Add AM-1280800N3TZQW-T00H

Hi Jagan.

On Fri, Aug 28, 2020 at 09:29:38PM +0530, Jagan Teki wrote:
> Add Ampire, AM-1280800N3TZQW-T00H 10.1" TFT LCD panel timings.
> 
> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> ---
>  drivers/gpu/drm/panel/panel-simple.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index b6ecd1552132..c988fe8094f8 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -592,6 +592,31 @@ static void panel_simple_shutdown(struct device *dev)
>  	drm_panel_unprepare(&panel->base);
>  }
>  
> +static const struct drm_display_mode ampire_am_1280800n3tzqw_t00h_mode = {
> +	.clock = 71100,
> +	.hdisplay = 1280,
> +	.hsync_start = 1280 + 40,
> +	.hsync_end = 1280 + 40 + 80,
> +	.htotal = 1280 + 40 + 80 + 40,
> +	.vdisplay = 800,
> +	.vsync_start = 800 + 3,
> +	.vsync_end = 800 + 3 + 10,
> +	.vtotal = 800 + 3 + 10 + 10,
> +	.vrefresh = 60,
No longer preset - delete.

> +	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
> +};
> +
> +static const struct panel_desc ampire_am_1280800n3tzqw_t00h = {
> +	.modes = &ampire_am_1280800n3tzqw_t00h_mode,
> +	.num_modes = 1,
> +	.bpc = 6,
> +	.size = {
> +		.width = 217,
> +		.height = 136,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> +};
.connector_type is mandatory today.
And based on connector type you may need to specify .bus_flags.

	Sam

> +
>  static const struct drm_display_mode ampire_am_480272h3tmqw_t01h_mode = {
>  	.clock = 9000,
>  	.hdisplay = 480,
> @@ -3637,6 +3662,9 @@ static const struct panel_desc arm_rtsm = {
>  
>  static const struct of_device_id platform_of_match[] = {
>  	{
> +		.compatible = "ampire,am-1280800n3tzqw-t00h",
> +		.data = &ampire_am_1280800n3tzqw_t00h,
> +	}, {
>  		.compatible = "ampire,am-480272h3tmqw-t01h",
>  		.data = &ampire_am_480272h3tmqw_t01h,
>  	}, {
> -- 
> 2.25.1