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From: Sam Ravnborg <sam@ravnborg.org>
To: Paul Cercueil <paul@crapouillou.net>
Cc: stable@vger.kernel.org, Thierry Reding <thierry.reding@gmail.com>,
	od@zcrc.me, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 1/2] drm/panel-simple: Fix inverted V/H SYNC for Frida FRD350H54004 panel
Date: Thu, 16 Jul 2020 19:50:32 +0200	[thread overview]
Message-ID: <20200716175032.GD2235355@ravnborg.org> (raw)
In-Reply-To: <20200716125647.10964-1-paul@crapouillou.net>

On Thu, Jul 16, 2020 at 02:56:46PM +0200, Paul Cercueil wrote:
> The FRD350H54004 panel was marked as having active-high VSYNC and HSYNC
> signals, which sorts-of worked, but resulted in the picture fading out
> under certain circumstances.
> 
> Fix this issue by marking VSYNC and HSYNC signals active-low.
> 
> v2: Rebase on drm-misc-next
> 
> Fixes: 7b6bd8433609 ("drm/panel: simple: Add support for the Frida FRD350H54004 panel")
> Cc: stable@vger.kernel.org # v5.5
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>

Thanks for the re-submit. Applied both patches to drm-misc-next.

	Sam

> ---
>  drivers/gpu/drm/panel/panel-simple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index f42249b72548..8b0bab9dd075 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1763,7 +1763,7 @@ static const struct drm_display_mode frida_frd350h54004_mode = {
>  	.vsync_start = 240 + 2,
>  	.vsync_end = 240 + 2 + 6,
>  	.vtotal = 240 + 2 + 6 + 2,
> -	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
> +	.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
>  };
>  
>  static const struct panel_desc frida_frd350h54004 = {
> -- 
> 2.27.0
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WARNING: multiple messages have this Message-ID (diff)
From: Sam Ravnborg <sam@ravnborg.org>
To: Paul Cercueil <paul@crapouillou.net>
Cc: Thierry Reding <thierry.reding@gmail.com>,
	od@zcrc.me, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v2 1/2] drm/panel-simple: Fix inverted V/H SYNC for Frida FRD350H54004 panel
Date: Thu, 16 Jul 2020 19:50:32 +0200	[thread overview]
Message-ID: <20200716175032.GD2235355@ravnborg.org> (raw)
In-Reply-To: <20200716125647.10964-1-paul@crapouillou.net>

On Thu, Jul 16, 2020 at 02:56:46PM +0200, Paul Cercueil wrote:
> The FRD350H54004 panel was marked as having active-high VSYNC and HSYNC
> signals, which sorts-of worked, but resulted in the picture fading out
> under certain circumstances.
> 
> Fix this issue by marking VSYNC and HSYNC signals active-low.
> 
> v2: Rebase on drm-misc-next
> 
> Fixes: 7b6bd8433609 ("drm/panel: simple: Add support for the Frida FRD350H54004 panel")
> Cc: stable@vger.kernel.org # v5.5
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>

Thanks for the re-submit. Applied both patches to drm-misc-next.

	Sam

> ---
>  drivers/gpu/drm/panel/panel-simple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index f42249b72548..8b0bab9dd075 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1763,7 +1763,7 @@ static const struct drm_display_mode frida_frd350h54004_mode = {
>  	.vsync_start = 240 + 2,
>  	.vsync_end = 240 + 2 + 6,
>  	.vtotal = 240 + 2 + 6 + 2,
> -	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
> +	.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
>  };
>  
>  static const struct panel_desc frida_frd350h54004 = {
> -- 
> 2.27.0

  parent reply	other threads:[~2020-07-16 17:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-16 12:56 [PATCH v2 1/2] drm/panel-simple: Fix inverted V/H SYNC for Frida FRD350H54004 panel Paul Cercueil
2020-07-16 12:56 ` Paul Cercueil
2020-07-16 12:56 ` [PATCH v2 2/2] drm/panel-simple: Add 50 Hz mode to the " Paul Cercueil
2020-07-16 12:56   ` Paul Cercueil
2020-07-16 17:50 ` Sam Ravnborg [this message]
2020-07-16 17:50   ` [PATCH v2 1/2] drm/panel-simple: Fix inverted V/H SYNC for " Sam Ravnborg

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