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From: Thomas Zimmermann <tzimmermann@suse.de>
To: Javier Martinez Canillas <javierm@redhat.com>,
	airlied@linux.ie, daniel@ffwll.ch, deller@gmx.de,
	maxime@cerno.tech, sam@ravnborg.org, msuchanek@suse.de,
	mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
	geert@linux-m68k.org, mark.cave-ayland@ilande.co.uk
Cc: linux-fbdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 02/10] drm/simpledrm: Inline device-init helpers
Date: Wed, 27 Jul 2022 09:50:58 +0200	[thread overview]
Message-ID: <314820f8-3609-9182-97eb-ee30e240d114@suse.de> (raw)
In-Reply-To: <be24a47c-c41a-411a-da63-c699b53cb459@redhat.com>


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Hi

Am 25.07.22 um 17:01 schrieb Javier Martinez Canillas:
> Hello Thomas,
> 
> On 7/20/22 16:27, Thomas Zimmermann wrote:
>> Inline the helpers for initializing the hardware FB, the memory
>> management and the modesetting into the device-creation function.
>> No functional changes.
>>
> 
> Could you please elaborate in the commit message why this change is
> desirable?  Without this additional context, this feels like going
> backwards, since you are dropping few helpers that have quite self
> contained code and making simpledrm_device_create() much larger.

To clarify: I want to make the init code more easy to follow. These old 
init functions still had to be called in the right order as each 
possibly depends on settings from the others. It also feels like it's 
easier to extract common code for ofdrm. And the pipeline is static, so 
it doesn't require complex chains of helper calls. Having everything in 
one helper seems beneficial. (It's a trade-off, I know.)

Best regards
Thomas

> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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  reply	other threads:[~2022-07-27  7:51 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-20 14:27 [PATCH v2 00/10] drm: Add driver for PowerPC OF displays Thomas Zimmermann
2022-07-20 14:27 ` [PATCH v2 01/10] drm/simpledrm: Remove mem field from device structure Thomas Zimmermann
2022-07-25 14:48   ` Javier Martinez Canillas
2022-07-20 14:27 ` [PATCH v2 02/10] drm/simpledrm: Inline device-init helpers Thomas Zimmermann
2022-07-25 15:01   ` Javier Martinez Canillas
2022-07-27  7:50     ` Thomas Zimmermann [this message]
2022-07-27  9:30       ` Javier Martinez Canillas
2022-07-20 14:27 ` [PATCH v2 03/10] drm/simpledrm: Remove pdev field from device structure Thomas Zimmermann
2022-07-25 15:02   ` Javier Martinez Canillas
2022-07-20 14:27 ` [PATCH v2 04/10] drm/simpledrm: Compute framebuffer stride if not set Thomas Zimmermann
2022-07-21 14:46   ` Geert Uytterhoeven
2022-07-25 15:13     ` Javier Martinez Canillas
2022-07-27  7:53       ` Thomas Zimmermann
2022-08-11 17:23         ` Daniel Vetter
2022-08-11 18:26           ` Thomas Zimmermann
2022-08-11 18:27             ` Thomas Zimmermann
2022-09-06 19:16               ` Daniel Vetter
2022-07-20 14:27 ` [PATCH v2 05/10] drm/simpledrm: Convert to atomic helpers Thomas Zimmermann
2022-07-25 15:46   ` Javier Martinez Canillas
2022-07-27  7:58     ` Thomas Zimmermann
2022-07-20 14:27 ` [PATCH v2 06/10] drm/simpledrm: Move some functionality into fwfb helper library Thomas Zimmermann
2022-07-25 16:23   ` Javier Martinez Canillas
2022-07-27  8:24     ` Thomas Zimmermann
2022-07-27  9:39       ` Javier Martinez Canillas
2022-07-20 14:27 ` [PATCH v2 07/10] drm/ofdrm: Add ofdrm for Open Firmware framebuffers Thomas Zimmermann
2022-07-26 13:17   ` Javier Martinez Canillas
2022-09-21 11:41     ` Thomas Zimmermann
2022-07-20 14:27 ` [PATCH v2 08/10] drm/ofdrm: Add CRTC state Thomas Zimmermann
2022-07-26 13:36   ` Javier Martinez Canillas
2022-09-21 11:45     ` Thomas Zimmermann
2022-07-20 14:27 ` [PATCH v2 09/10] drm/ofdrm: Add per-model device function Thomas Zimmermann
2022-07-26 13:38   ` Javier Martinez Canillas
2022-07-26 14:40     ` Michal Suchánek
2022-07-26 19:22       ` Javier Martinez Canillas
2022-07-27  8:33         ` Thomas Zimmermann
2022-08-05  0:22       ` Benjamin Herrenschmidt
2022-09-21 12:37         ` Thomas Zimmermann
2022-07-20 14:27 ` [PATCH v2 10/10] drm/ofdrm: Support color management Thomas Zimmermann
2022-07-26 13:49   ` Javier Martinez Canillas
2022-07-27  8:41     ` Thomas Zimmermann
2022-07-27  9:45       ` Javier Martinez Canillas
2022-08-05  0:29       ` Benjamin Herrenschmidt
2022-08-05  0:19   ` Benjamin Herrenschmidt
2022-09-21 12:55     ` Thomas Zimmermann
2022-09-21 16:48       ` Geert Uytterhoeven
2022-09-22  6:42         ` Thomas Zimmermann
2022-09-22  7:28           ` Maxime Ripard
2022-09-22  8:06             ` Thomas Zimmermann
2022-07-28 11:13 ` [PATCH v2 00/10] drm: Add driver for PowerPC OF displays Michael Ellerman
2022-07-28 11:31   ` Michal Suchánek

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