linux-kernel - Re: [PATCH v2] drm/panel: visionox-vtdr6130: Set prepare_prev

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Date: Fri, 2 Feb 2024 22:25:33 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Jessica Zhang <quic_jesszhan@...cinc.com>, quic_abhinavk@...cinc.com
Cc: Sam Ravnborg <sam@...nborg.org>, David Airlie <airlied@...il.com>,
 Daniel Vetter <daniel@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 quic_parellan@...cinc.com, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] drm/panel: visionox-vtdr6130: Set prepare_prev_first
 flag

On 02/02/2024 01:10, Jessica Zhang wrote:
> The DSI host must be enabled for the panel to be initialized in
> prepare(). Set the prepare_prev_first flag to guarantee this.
> 
> Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
> ---
> To: Neil Armstrong <neil.armstrong@...aro.org>
> To: Sam Ravnborg <sam@...nborg.org>
> To: David Airlie <airlied@...il.com>
> To: Daniel Vetter <daniel@...ll.ch>
> To: Jessica Zhang <quic_jesszhan@...cinc.com>
> To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> To: Maxime Ripard <mripard@...nel.org>
> To: Thomas Zimmermann <tzimmermann@...e.de>
> Cc: quic_abhinavk@...cinc.com
> Cc: quic_parellan@...cinc.com
> Cc: dri-devel@...ts.freedesktop.org
> Cc: linux-kernel@...r.kernel.org
> 
> Changes in v2:
> - Corrected commit message to mention that DCS on commands are sent during
>    prepare() instead of probe()
> - Dropped Fixes tag
> - Rebased onto tip of linux-next
> - Link to v1: https://lore.kernel.org/r/20230725-visionox-vtdr-prev-first-v1-1-3bc44cec7dc6@quicinc.com
> ---
>   drivers/gpu/drm/panel/panel-visionox-vtdr6130.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
> index a23407b9f6fb6..540099253e1bd 100644
> --- a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
> +++ b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
> @@ -287,6 +287,7 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
>   	dsi->format = MIPI_DSI_FMT_RGB888;
>   	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |
>   			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
> +	ctx->panel.prepare_prev_first = true;
>   
>   	drm_panel_init(&ctx->panel, dev, &visionox_vtdr6130_panel_funcs,
>   		       DRM_MODE_CONNECTOR_DSI);
> 
> ---
> base-commit: 51b70ff55ed88edd19b080a524063446bcc34b62
> change-id: 20230717-visionox-vtdr-prev-first-e00ae02eec9f
> 
> Best regards,

Thx for resending, it's time to merge those.

Acked-by: Neil Armstrong <neil.armstrong@...aro.org>