[PATCH 0/1] drm: rockchip: Turn off VT switching on suspend

[PATCH 0/1] drm: rockchip: Turn off VT switching on suspend

[Caesar Wang]

drm/rockchip already has support for disabling all displays on suspend
and enabling them on resume.

Disable automatic VT switching on suspend by the pm console tracking
layer.

Tested on veyron, used `echo mem > sys/power/state`
  => verified no VT switch.



Caesar Wang (1):
  drm: rockchip: Turn off VT switching on suspend

 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
1.9.1

[PATCH] drm: rockchip: Turn off VT switching on suspend

[Caesar Wang]

drm/rockchip already has support for disabling all displays on suspend
and enabling them on resume.

Disable automatic VT switching on suspend by the pm console tracking
layer.

Tested on veyron, used `echo mem > sys/power/state`
  => verified no VT switch

Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
---

 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
index a5d889a..eb4e0db 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
@@ -119,6 +119,9 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
 	DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%d\n",
 		      fb->width, fb->height, fb->depth, rk_obj->kvaddr,
 		      offset, size);
+
+	fbi->skip_vt_switch = true;
+
 	return 0;
 
 err_drm_framebuffer_unref:
-- 
1.9.1

Re: [PATCH] drm: rockchip: Turn off VT switching on suspend

[Caesar Wang]

Hi Mark,

Can you apply it into your drm branch if it's indeed uesful for u?

在 2015年03月31日 18:22, Caesar Wang 写道:
> drm/rockchip already has support for disabling all displays on suspend
> and enabling them on resume.
>
> Disable automatic VT switching on suspend by the pm console tracking
> layer.
>
> Tested on veyron, used `echo mem > sys/power/state`
>    => verified no VT switch
>
> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
> ---
>
>   drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
> index a5d889a..eb4e0db 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
> @@ -119,6 +119,9 @@ static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
>   	DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%d\n",
>   		      fb->width, fb->height, fb->depth, rk_obj->kvaddr,
>   		      offset, size);
> +
> +	fbi->skip_vt_switch = true;
> +
>   	return 0;
>   
>   err_drm_framebuffer_unref:

-- 
**************************************************************************************
王晓腾    Caesar Wang
Product R&D Dept.III
Fuzhou Rockchip Electronics Co.Ltd
Addr：  NO.18 Building, A District, Fuzhou Software Park,Gulou District,Fuzhou, Fujian,China(Fuzhou Headquarters)
               21F,Malata Building,Kejizhongyi Avenue,Nanshan District,Shenzhen  (Shenzhen Office)
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E-mail : wxt@rock-chips.com
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