Re: [RFC v2 PATCH v3 10/14] drm/panel: add S6E3FA0 driver

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Hi YoungJun,

Thank you for the patch.

On Monday 21 April 2014 21:28:37 YoungJun Cho wrote:
> This patch adds MIPI-DSI command mode based S6E3FA0 AMOLED LCD Panel driver.
> 
> Changelog v2:
> - Declares delay, size properties in probe routine instead of DT
> Changelog v3:
> - Moves CPU timings relevant properties from FIMD DT
>   (commented by Laurent Pinchart, Andrzej Hajda)
> 
> Signed-off-by: YoungJun Cho <yj44.cho@xxxxxxxxxxx>
> Acked-by: Inki Dae <inki.dae@xxxxxxxxxxx>
> Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
>  drivers/gpu/drm/panel/Kconfig         |    7 +
>  drivers/gpu/drm/panel/Makefile        |    1 +
>  drivers/gpu/drm/panel/panel-s6e3fa0.c |  569 ++++++++++++++++++++++++++++++
>  3 files changed, 577 insertions(+)
>  create mode 100644 drivers/gpu/drm/panel/panel-s6e3fa0.c

[snip]

> diff --git a/drivers/gpu/drm/panel/panel-s6e3fa0.c
> b/drivers/gpu/drm/panel/panel-s6e3fa0.c new file mode 100644
> index 0000000..1282678
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-s6e3fa0.c
> @@ -0,0 +1,569 @@

[snip]

> +static int s6e3fa0_get_modes(struct drm_panel *panel)
> +{
> +	struct drm_connector *connector = panel->connector;
> +	struct s6e3fa0 *ctx = panel_to_s6e3fa0(panel);
> +	struct drm_display_mode *mode;
> +
> +	mode = drm_mode_create(connector->dev);
> +	if (!mode) {
> +		DRM_ERROR("failed to create a new display mode\n");
> +		return 0;
> +	}
> +
> +	drm_display_mode_from_videomode(&ctx->vm, mode);
> +	mode->width_mm = ctx->width_mm;
> +	mode->height_mm = ctx->height_mm;
> +	connector->display_info.width_mm = mode->width_mm;
> +	connector->display_info.height_mm = mode->height_mm;
> +
> +	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> +	mode->private = (void *)&ctx->cpu_timings;

Wouldn't it make sense to create a new get_interface_params (or similar) 
operation for drm_panel to query interface configuration parameters instead of 
shoving it in the mode private field ?

> +	drm_mode_probed_add(connector, mode);
> +
> +	return 1;
> +}

[snip]

-- 
Regards,

Laurent Pinchart

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