Hi Boris,
Thank you for the patch.
On Thu, Aug 08, 2019 at 05:11:49PM +0200, Boris Brezillon wrote:
> Add a new entry for the Toshiba LTA089AC29000 panel.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
> ---
> .../display/panel/toshiba,lt089ac29000.txt | 5 ++-
> drivers/gpu/drm/panel/panel-simple.c | 36 +++++++++++++++++++
> 2 files changed, 40 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt b/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
> index 89826116628c..26ebfa098966 100644
> --- a/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
> +++ b/Documentation/devicetree/bindings/display/panel/toshiba,lt089ac29000.txt
> @@ -1,7 +1,10 @@
> Toshiba 8.9" WXGA (1280x768) TFT LCD panel
>
> Required properties:
> -- compatible: should be "toshiba,lt089ac29000"
> +- compatible: should be one of the following
> + "toshiba,lt089ac29000"
> + "toshiba,lta089ac29000"
> +
> - power-supply: as specified in the base binding
>
> This binding is compatible with the simple-panel binding, which is specified
While at it, any change to convert this binding to .yaml ? For panels
it's fairly easy.
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index bff7578f84dd..4c1deed44ce2 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -2857,6 +2857,39 @@ static const struct panel_desc toshiba_lt089ac29000 = {
> .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
> };
>
> +static const struct drm_display_mode toshiba_lta089ac29000_mode = {
> + .clock = 79500,
> + .hdisplay = 1280,
> + .hsync_start = 1280 + 192,
> + .hsync_end = 1280 + 192 + 128,
> + .htotal = 1280 + 192 + 128 + 64,
> + .vdisplay = 768,
> + .vsync_start = 768 + 20,
> + .vsync_end = 768 + 20 + 7,
> + .vtotal = 768 + 20 + 7 + 3,
> + .vrefresh = 60,
> +};
> +
> +static const struct panel_desc toshiba_lta089ac29000 = {
> + .modes = &toshiba_lta089ac29000_mode,
> + .num_modes = 1,
> + .size = {
> + .width = 194,
> + .height = 116,
> + },
> + /*
> + * FIXME:
> + * The panel supports 2 bus formats: jeida-24 and jeida-18. The
> + * mode is selected through the 8b6b_SEL pin. If anyone ever needs
> + * support for jeida-18 we should probably parse the 'data-mapping'
> + * property.
> + * In the unlikely event where 8b6b_SEL is connected to a GPIO, we'd
> + * need a new infra to allow bus format negotiation at the panel level.
I would also leave the GPIO case for later, but it would be nice to already
implement reading the data-mapping property, in order to validate the DT
(you should add the data-mapping property to the bindings by the way).
Bonus points if it can be done in a way that is also usable by other
panels.
> + */
> + .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
> + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
> +};
> +
> static const struct drm_display_mode tpk_f07a_0102_mode = {
> .clock = 33260,
> .hdisplay = 800,
> @@ -3305,6 +3338,9 @@ static const struct of_device_id platform_of_match[] = {
> }, {
> .compatible = "toshiba,lt089ac29000",
> .data = &toshiba_lt089ac29000,
> + }, {
> + .compatible = "toshiba,lta089ac29000",
> + .data = &toshiba_lta089ac29000,
> }, {
> .compatible = "tpk,f07a-0102",
> .data = &tpk_f07a_0102,
--
Regards,
Laurent Pinchart
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