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From: Vincent ABRIOU <vincent.abriou@st.com>
To: Takashi Iwai <tiwai@suse.de>,
	Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH] drm/sti: Remove select of CONFIG_FW_LOADER_USER_HELPER_FALLBACK
Date: Thu, 29 Oct 2015 15:21:35 +0100	[thread overview]
Message-ID: <56322B6F.5080101@st.com> (raw)
In-Reply-To: <1445235370-6717-1-git-send-email-tiwai@suse.de>

Hi Takashi,

Removing FW_LOADER_USER_HELPER_FALLBACK leads to a failure in our HQVDP 
firmware execution.
Indeed, our firmware is not built-in. It is a proprietary firmware 
uploaded into the file system that's why we need the 
USER_HELPER_FALLBACK to be able to load it once file system is available.

BR
Vincent

On 10/19/2015 08:16 AM, Takashi Iwai wrote:
> The commit [4fdbc678fe4d: drm: sti: add HQVDP plane] added the select
> of CONFIG_FW_LOADER_USER_HELPER_FALLBACK by some unwritten reason.
> But this config is known to be harmful, and is present only for
> compatibility reason for an old exotic system that mandates udev
> interaction which isn't supposed to be selected by a driver.
> Let's remove it.
>
> Fixes: 4fdbc678fe4d ('drm: sti: add HQVDP plane')
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>   drivers/gpu/drm/sti/Kconfig | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/sti/Kconfig b/drivers/gpu/drm/sti/Kconfig
> index fbccc105819b..a18159074b76 100644
> --- a/drivers/gpu/drm/sti/Kconfig
> +++ b/drivers/gpu/drm/sti/Kconfig
> @@ -6,7 +6,6 @@ config DRM_STI
>   	select DRM_GEM_CMA_HELPER
>   	select DRM_KMS_CMA_HELPER
>   	select DRM_PANEL
> -	select FW_LOADER_USER_HELPER_FALLBACK
>   	help
>   	  Choose this option to enable DRM on STM stiH41x chipset
>
>
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WARNING: multiple messages have this Message-ID (diff)
From: Vincent ABRIOU <vincent.abriou@st.com>
To: Takashi Iwai <tiwai@suse.de>,
	Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: David Airlie <airlied@linux.ie>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] drm/sti: Remove select of CONFIG_FW_LOADER_USER_HELPER_FALLBACK
Date: Thu, 29 Oct 2015 15:21:35 +0100	[thread overview]
Message-ID: <56322B6F.5080101@st.com> (raw)
In-Reply-To: <1445235370-6717-1-git-send-email-tiwai@suse.de>

Hi Takashi,

Removing FW_LOADER_USER_HELPER_FALLBACK leads to a failure in our HQVDP 
firmware execution.
Indeed, our firmware is not built-in. It is a proprietary firmware 
uploaded into the file system that's why we need the 
USER_HELPER_FALLBACK to be able to load it once file system is available.

BR
Vincent

On 10/19/2015 08:16 AM, Takashi Iwai wrote:
> The commit [4fdbc678fe4d: drm: sti: add HQVDP plane] added the select
> of CONFIG_FW_LOADER_USER_HELPER_FALLBACK by some unwritten reason.
> But this config is known to be harmful, and is present only for
> compatibility reason for an old exotic system that mandates udev
> interaction which isn't supposed to be selected by a driver.
> Let's remove it.
>
> Fixes: 4fdbc678fe4d ('drm: sti: add HQVDP plane')
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>   drivers/gpu/drm/sti/Kconfig | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/sti/Kconfig b/drivers/gpu/drm/sti/Kconfig
> index fbccc105819b..a18159074b76 100644
> --- a/drivers/gpu/drm/sti/Kconfig
> +++ b/drivers/gpu/drm/sti/Kconfig
> @@ -6,7 +6,6 @@ config DRM_STI
>   	select DRM_GEM_CMA_HELPER
>   	select DRM_KMS_CMA_HELPER
>   	select DRM_PANEL
> -	select FW_LOADER_USER_HELPER_FALLBACK
>   	help
>   	  Choose this option to enable DRM on STM stiH41x chipset
>
>

  reply	other threads:[~2015-10-29 14:21 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-19  6:16 [PATCH] drm/sti: Remove select of CONFIG_FW_LOADER_USER_HELPER_FALLBACK Takashi Iwai
2015-10-19  6:16 ` Takashi Iwai
2015-10-29 14:21 ` Vincent ABRIOU [this message]
2015-10-29 14:21   ` Vincent ABRIOU
2015-10-29 14:36   ` Takashi Iwai
2015-10-29 14:36     ` Takashi Iwai
2015-10-29 14:37   ` Emil Velikov
2015-10-29 14:37     ` Emil Velikov
2015-10-29 14:53     ` Takashi Iwai
2015-10-29 14:53       ` Takashi Iwai
2015-11-02  9:10       ` Vincent ABRIOU
2015-11-02  9:10         ` Vincent ABRIOU

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