On Tue Jun 3, 2025 at 9:39 PM CEST, Chris Morgan wrote:
> From: Chris Morgan <macromor...@hotmail.com>
>
> Add support for the Huiling hl055fhav028c panel as used on the
> Gameforce Ace handheld gaming console. This panel uses a Himax HX8399C
> display controller and requires a sparsely documented vendor provided
> init sequence. The display resolution is 1080x1920 and is 70mm by 127mm
> as stated in the manufacturer's documentation.
>
> Signed-off-by: Chris Morgan <macromor...@hotmail.com>
> ---
> drivers/gpu/drm/panel/panel-himax-hx8394.c | 142 +++++++++++++++++++++
> 1 file changed, 142 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-himax-hx8394.c
> b/drivers/gpu/drm/panel/panel-himax-hx8394.c
> index ff994bf0e3cc..16e450b156b7 100644
> --- a/drivers/gpu/drm/panel/panel-himax-hx8394.c
> +++ b/drivers/gpu/drm/panel/panel-himax-hx8394.c
> @@ -477,6 +477,147 @@ static const struct hx8394_panel_desc
> mchp_ac40t08a_desc = {
> .init_sequence = mchp_ac40t08a_init_sequence,
> };
> <snip>
> +
> +static const struct drm_display_mode hl055fhav028c_mode = {
> + .hdisplay = 1080,
> + .hsync_start = 1080 + 32,
> + .hsync_end = 1080 + 32 + 8,
> + .htotal = 1080 + 32 + 8 + 32,
> + .vdisplay = 1920,
> + .vsync_start = 1920 + 16,
> + .vsync_end = 1920 + 16 + 2,
> + .vtotal = 1920 + 16 + 2 + 14,
Shouldn't this be 's/14/16/' ?
Cheers,
Diederik
> + .clock = 134920,
> + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> + .width_mm = 70,
> + .height_mm = 127,
> +};
> +
> +static const struct hx8394_panel_desc hl055fhav028c_desc = {
> + .mode = &hl055fhav028c_mode,
> + .lanes = 4,
> + .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST,
> + .format = MIPI_DSI_FMT_RGB888,
> + .init_sequence = hl055fhav028c_init_sequence,
> +};
> +
> static int hx8394_enable(struct drm_panel *panel)
> {
> struct hx8394 *ctx = panel_to_hx8394(panel);
> @@ -683,6 +824,7 @@ static void hx8394_remove(struct mipi_dsi_device *dsi)
>
> static const struct of_device_id hx8394_of_match[] = {
> { .compatible = "hannstar,hsd060bhw4", .data = &hsd060bhw4_desc },
> + { .compatible = "huiling,hl055fhav028c", .data = &hl055fhav028c_desc },
> { .compatible = "powkiddy,x55-panel", .data = &powkiddy_x55_desc },
> { .compatible = "microchip,ac40t08a-mipi-panel", .data =
> &mchp_ac40t08a_desc },
> { /* sentinel */ }
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