Re: [PATCH v2 2/2] drivers: gpu: drm: panel: Add BOE TD4320

[Neil Armstrong <neil.armstrong@linaro.org>]

On 29/04/2025 23:33, Barnabás Czémán wrote:
> Add driver for BOE TD4320 DSI panel, used in Xiaomi Redmi Note 7
> mobile phone.
> 
> Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
> ---
>   drivers/gpu/drm/panel/Kconfig            |   9 ++
>   drivers/gpu/drm/panel/Makefile           |   1 +
>   drivers/gpu/drm/panel/panel-boe-td4320.c | 247 +++++++++++++++++++++++++++++++
>   3 files changed, 257 insertions(+)

<snip>

> +
> +	ctx->dsi = dsi;
> +	mipi_dsi_set_drvdata(dsi, ctx);
> +
> +	dsi->lanes = 4;
> +	dsi->format = MIPI_DSI_FMT_RGB888;
> +	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
> +
> +	drm_panel_init(&ctx->panel, dev, &boe_td4320_panel_funcs,
> +		       DRM_MODE_CONNECTOR_DSI);

Please switch to devm_drm_panel_alloc()

> +	ctx->panel.prepare_prev_first = true;
> +
> +	ret = drm_panel_of_backlight(&ctx->panel);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Failed to get backlight\n");
> +
> +	drm_panel_add(&ctx->panel);
> +
> +	ret = mipi_dsi_attach(dsi);
> +	if (ret < 0) {
> +		drm_panel_remove(&ctx->panel);
> +		return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
> +	}
> +
> +	return 0;
> +}
> +
> +static void boe_td4320_remove(struct mipi_dsi_device *dsi)
> +{
> +	struct boe_td4320 *ctx = mipi_dsi_get_drvdata(dsi);
> +	int ret;
> +
> +	ret = mipi_dsi_detach(dsi);
> +	if (ret < 0)
> +		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
> +
> +	drm_panel_remove(&ctx->panel);
> +}
> +
> +static const struct of_device_id boe_td4320_of_match[] = {
> +	{ .compatible = "boe,td4320" },
> +	{ /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, boe_td4320_of_match);
> +
> +static struct mipi_dsi_driver boe_td4320_driver = {
> +	.probe = boe_td4320_probe,
> +	.remove = boe_td4320_remove,
> +	.driver = {
> +		.name = "panel-boe-td4320",
> +		.of_match_table = boe_td4320_of_match,
> +	},
> +};
> +module_mipi_dsi_driver(boe_td4320_driver);
> +
> +MODULE_AUTHOR("Barnabas Czeman <barnabas.czeman@mainlining.org>");
> +MODULE_DESCRIPTION("DRM driver for boe td4320 fhdplus video mode dsi panel");
> +MODULE_LICENSE("GPL");
> 

Otherwise it looks fine.

Thanks,
Neil