From: Javier Martinez Canillas <javierm@redhat.com>
To: "Noralf Trønnes" <noralf@tronnes.org>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 11/60] drm/gud: Add support for the nomodeset kernel parameter
Date: Wed, 15 Dec 2021 22:50:40 +0100 [thread overview]
Message-ID: <55881b86-6130-7737-b6f8-44e1853e419a@redhat.com> (raw)
In-Reply-To: <5b1d9578-1f74-a808-c4d4-6e8c38dd57fc@tronnes.org>
Hello Noralf,
On 12/15/21 22:37, Noralf Trønnes wrote:
>
>
> Den 15.12.2021 01.59, skrev Javier Martinez Canillas:
>> According to disable Documentation/admin-guide/kernel-parameters.txt, this
>> parameter can be used to disable kernel modesetting.
>>
>> DRM drivers will not perform display-mode changes or accelerated rendering
>> and only the systewm system framebuffer will be available if it was set-up.
>>
>> But only a few DRM drivers currently check for nomodeset, make this driver
>> to also support the command line parameter.
>>
>> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
>> ---
>>
>
> I don't understand why this is applicable to USB drivers, there's no way
> the firmware can setup a framebuffer and continue pushing pixels over
> USB when Linux has been given control over the USB bus?
>
> The same argument goes for the SPI drivers in drm/tiny/ as well.
>
That's a very good point. I included these mostly for consistency but if it's
OK for the KMS drivers to just ignore the "nomodeset" parameter, I could drop
all that are not for devices in the PCI or platform buses.
Best regards,
--
Javier Martinez Canillas
Linux Engineering
Red Hat
next prev parent reply other threads:[~2021-12-15 21:50 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-15 0:59 [PATCH 00/60] drm: Make all drivers to honour the nomodeset parameter Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 01/60] drm/komeda: Add support for the nomodeset kernel parameter Javier Martinez Canillas
2022-01-24 17:09 ` Carsten Haitzler
2021-12-15 0:59 ` [PATCH 02/60] drm/arm/hdlcd: " Javier Martinez Canillas
2022-01-24 17:09 ` Carsten Haitzler
2021-12-15 0:59 ` [PATCH 03/60] drm/malidp: " Javier Martinez Canillas
2022-01-24 17:09 ` Carsten Haitzler
2021-12-15 0:59 ` [PATCH 04/60] drm/armada: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 05/60] drm/aspeed: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 06/60] drm/atmel-hlcdc: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 07/60] drm/etnaviv: " Javier Martinez Canillas
2021-12-15 9:18 ` Lucas Stach
2021-12-15 9:39 ` Thomas Zimmermann
2021-12-15 9:45 ` Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 08/60] drm/exynos: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 09/60] drm/fsl-dcu: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 10/60] drm/gma500: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 11/60] drm/gud: " Javier Martinez Canillas
2021-12-15 21:37 ` Noralf Trønnes
2021-12-15 21:50 ` Javier Martinez Canillas [this message]
2021-12-16 8:20 ` Thomas Zimmermann
2021-12-16 15:47 ` Noralf Trønnes
2021-12-15 0:59 ` [PATCH 12/60] drm/hisilicon/hibmc: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 13/60] drm/hisilicon/kirin: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 14/60] drm/hyperv: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 15/60] drm/i810: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 16/60] drm/imx/dcss: " Javier Martinez Canillas
2021-12-15 9:20 ` Lucas Stach
2021-12-15 0:59 ` [PATCH 17/60] drm/imx: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 18/60] drm/ingenic: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 19/60] drm/kmb: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 20/60] drm/lima: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 21/60] drm/mcde: " Javier Martinez Canillas
2021-12-15 1:02 ` Linus Walleij
2021-12-15 0:59 ` [PATCH 22/60] drm/mediatek: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 23/60] drm/meson: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 24/60] drm/mga: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 25/60] drm/msm: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 26/60] drm: mxsfb: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 27/60] drm/omap: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 28/60] drm/panel: ilitek-ili9341: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 29/60] drm/panfrost: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 30/60] drm/pl111: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 31/60] drm/r128: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 32/60] drm: rcar-du: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 33/60] drm/rockchip: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 34/60] drm/savage: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 35/60] drm/shmobile: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 36/60] drm/sis: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 37/60] drm/sprd: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 38/60] drm/sti: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 39/60] drm/stm: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 40/60] drm/sun4i: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 41/60] drm/tdfx: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 42/60] drm/tegra: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 43/60] drm/tidss: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 44/60] drm/tilcdc: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 45/60] drm/arc: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 46/60] drm/gm12u320: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 47/60] drm/hx8357d: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 48/60] drm/ili9163: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 49/60] drm/ili9225: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 50/60] drm/ili9341: " Javier Martinez Canillas
2021-12-15 0:59 ` [PATCH 51/60] drm/ili9486: " Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 52/60] drm/mi0283qt: " Javier Martinez Canillas
2021-12-16 15:48 ` Noralf Trønnes
2021-12-15 1:00 ` [PATCH 53/60] drm/repaper: " Javier Martinez Canillas
2021-12-16 15:48 ` Noralf Trønnes
2021-12-15 1:00 ` [PATCH 54/60] drm/st7586: " Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 55/60] drm/st7735r: " Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 56/60] drm/tve200: " Javier Martinez Canillas
2021-12-15 1:03 ` Linus Walleij
2021-12-15 1:00 ` [PATCH 57/60] drm/udl: " Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 58/60] drm/via: " Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 59/60] drm/xen: " Javier Martinez Canillas
2021-12-15 5:58 ` Oleksandr Andrushchenko
2021-12-15 8:14 ` Javier Martinez Canillas
2021-12-15 1:00 ` [PATCH 60/60] drm/xlnx: " Javier Martinez Canillas
2021-12-15 8:31 ` [PATCH 00/60] drm: Make all drivers to honour the nomodeset parameter Thomas Zimmermann
2021-12-15 8:50 ` Javier Martinez Canillas
2021-12-15 9:10 ` Thomas Zimmermann
2021-12-15 23:26 ` Javier Martinez Canillas
2021-12-15 9:12 ` Thomas Zimmermann
2021-12-15 9:25 ` Javier Martinez Canillas
2021-12-15 23:35 ` Laurent Pinchart
2021-12-16 0:13 ` Javier Martinez Canillas
2021-12-16 0:24 ` Laurent Pinchart
2021-12-16 0:38 ` Javier Martinez Canillas
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