Re: [PATCH] drm/panel-simple: Add Vivax TPC-9150 panel

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Thierry Reding

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Aug 17, 2021, 10:36:14 AM8/17/21
to Nikola Pavlica, dri-...@lists.freedesktop.org, s...@ravnborg.org, air...@linux.ie, dan...@ffwll.ch, linux-ar...@lists.infradead.org, linux...@googlegroups.com, linux...@lists.linux.dev, linux-...@vger.kernel.org
On Tue, Aug 17, 2021 at 10:32:01AM +0200, Nikola Pavlica wrote:
> The model and make of the LCD panel of the Vivax TPC-9150 is unknown,
> hence the panel settings that were retrieved with a FEX dump are named
> after the device NOT the actual panel.
>
> The LCD in question is a 50 pin MISO TFT LCD panel of the resolution
> 1024x600 used by the aforementioned device.
>
> Signed-off-by: Nikola Pavlica <pavlica...@gmail.com>
> ---
> drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 4e2dad314c79..97fc3c5740bb 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -4090,6 +4090,29 @@ static const struct panel_desc arm_rtsm = {
> .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> };
>
> +static const struct drm_display_mode vivax_tpc9150_panel_mode = {
> + .clock = 60000,
> + .hdisplay = 1024,
> + .hsync_start = 1024 + 160,
> + .hsync_end = 1024 + 160 + 100,
> + .htotal = 1024 + 160 + 100 + 60,
> + .vdisplay = 600,
> + .vsync_start = 600 + 12,
> + .vsync_end = 600 + 12 + 10,
> + .vtotal = 600 + 12 + 10 + 13,
> +};
> +
> +static const struct panel_desc vivax_tpc9150_panel = {
> + .modes = &vivax_tpc9150_panel_mode,
> + .num_modes = 1,
> + .size = {
> + .width = 223,
> + .height = 125,
> + },
> + .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> + .bus_flags = DRM_BUS_FLAG_DE_HIGH,
> +};
> +

These were originally supposed to be alphabetically ordered by
compatible string, though it looks like at least the data structures for
ARM RTSM weren't properly ordered.

Perhaps you can prepend a patch correcting that order and then make sure
your patch keeps the alphabetical ordering, too?

> static const struct of_device_id platform_of_match[] = {
> {
> .compatible = "ampire,am-1280800n3tzqw-t00h",
> @@ -4103,6 +4126,9 @@ static const struct of_device_id platform_of_match[] = {
> }, {
> .compatible = "arm,rtsm-display",
> .data = &arm_rtsm,
> + }, {
> + .compatible = "vivax,tpc9150-panel",
> + .data = &vivax_tpc9150_panel,

Also make sure to keep the alphabetical order here.

Thierry
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