Re: [PATCH v5 2/2] drm/panel: Add Feiyang FY07024DI26A30-D MIPI-DSI LCD panel

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Hi Jagan.

Looks good, only very few nits left.

On Sat, Jan 26, 2019 at 12:52:33AM +0530, Jagan Teki wrote:
> Feiyang FY07024DI26A30-D is 1024x600, 4-lane MIPI-DSI LCD panel.
> 
> Add panel driver for it.
> 
> Tested-by: Bhushan Shah <bshah@xxxxxxx>
> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>

If you consider my inputs (I know you will) then you can add my:
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>


> +	msleep(20);
> +
> +	gpiod_set_value(ctx->reset, 0);
> +	/* T5 + T6 (avdd rise + video & logic signal rise)
> +	 * T5 >= 10ms, 0 < T6 <= 10ms
> +	 */
> +	msleep(20);

Please use kernel coding style comment, and maybe an empty
line between gpiod...() and the comment:

	gpiod_set_value(ctx->reset, 0);
	/*
	 * T5 + T6 (avdd rise + video & logic signal rise)
	 * T5 >= 10ms, 0 < T6 <= 10ms
	 */
	msleep(20);


> +static int feiyang_get_modes(struct drm_panel *panel)
> +{
> +	struct drm_connector *connector = panel->connector;
> +	struct feiyang *ctx = panel_to_feiyang(panel);
> +	struct drm_display_mode *mode;
> +
> +	mode = drm_mode_duplicate(panel->drm, &feiyang_default_mode);
> +	if (!mode) {
> +		DRM_DEV_ERROR(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n",
> +			      feiyang_default_mode.hdisplay,
> +			      feiyang_default_mode.vdisplay,
> +			      feiyang_default_mode.vrefresh);
Please consider to use DRM_MODE_FMT and DRM_MODE_ARG for printing.


> +static const struct of_device_id feiyang_of_match[] = {
> +	{ .compatible = "feiyang,fy07024di26a30d", },
> +	{ }
Maybe use { /* sentinel */ },
?
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