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From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Daniel Stone <daniel@fooishbar.org>,
	Linus Walleij <linus.walleij@linaro.org>
Cc: "Alexandre Belloni" <alexandre.belloni@bootlin.com>,
	"Neil Armstrong" <narmstrong@baylibre.com>,
	"Maxime Ripard" <maxime.ripard@bootlin.com>,
	"Guido Günther" <agx@sigxcpu.org>,
	"open list:DRM PANEL DRIVERS" <dri-devel@lists.freedesktop.org>,
	"Nicolas Ferre" <nicolas.ferre@microchip.com>,
	"Paul Cercueil" <paul@crapouillou.net>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
	"Sam Ravnborg" <sam@ravnborg.org>,
	"Stefan Mavrodiev" <stefan@olimex.com>,
	"Vincent Abriou" <vincent.abriou@st.com>,
	"Ludovic Desroches" <ludovic.desroches@microchip.com>,
	"Jagan Teki" <jagan@amarulasolutions.com>,
	"Robert Chiras" <robert.chiras@nxp.com>,
	"Jonas Karlman" <jonas@kwiboo.se>, "Jyri Sarha" <jsarha@ti.com>,
	"Sean Paul" <sean@poorly.run>,
	"Jernej Skrabec" <jernej.skrabec@siol.net>,
	"Purism Kernel Team" <kernel@puri.sm>,
	"Boris Brezillon" <bbrezillon@kernel.or>
Subject: Re: DRM_MODE_CONNECTOR_PANEL? [Was: drm/panel: Add and fill drm_panel type field]
Date: Fri, 27 Sep 2019 17:28:03 +0300	[thread overview]
Message-ID: <45dd0859-b5e7-534f-48ab-6dd4a16f38af@ti.com> (raw)
In-Reply-To: <CAPj87rN3Dh1ANz=rZD=EMOfRXce7cc7v3M6TR2P0VJhyrT4-yw@mail.gmail.com>

On 27/09/2019 15:44, Daniel Stone wrote:
> Hi Linus,
> 
> On Fri, 27 Sep 2019 at 13:37, Linus Walleij <linus.walleij@linaro.org> wrote:
>> Also the ILI9322 can actually set up gamma correction which is
>> very nice for professional applications. I haven't seen any way for
>> DRM to do gamma correction properly or any framework for it
>> to adjust and propagate gamma to/from userspace (seems like
>> another enormous task), but I am pretty sure it will be there one
>> of these days so I put in some comments and placeholders.
> 
> Gamma correction has been supported since approximately the dawn of
> time with a 3x8-bit LUT.

But, afaik, only in the display controller side. I don't think we have 
means to have any properties for the panels or bridges.

  Tomi

-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
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  reply	other threads:[~2019-09-27 14:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23 19:32 [PATCH v2 0/4] drm/panel: Extend panels to report their types Laurent Pinchart
2019-08-23 19:32 ` [PATCH v2 1/4] drm/panel: Add missing drm_panel_init() in panel drivers Laurent Pinchart
2019-08-24  8:48   ` Sam Ravnborg
2019-08-23 19:32 ` [PATCH v2 2/4] drm/panel: Initialise panel dev and funcs through drm_panel_init() Laurent Pinchart
2019-08-24  8:50   ` Sam Ravnborg
2019-08-23 19:32 ` [PATCH v2 3/4] drm/panel: Add and fill drm_panel type field Laurent Pinchart
2019-08-24  9:54   ` DRM_MODE_CONNECTOR_PANEL? [Was: drm/panel: Add and fill drm_panel type field] Sam Ravnborg
2019-08-24 14:02     ` Laurent Pinchart
2019-09-04 13:13       ` Laurent Pinchart
2019-09-27 12:37     ` Linus Walleij
2019-09-27 12:44       ` Daniel Stone
2019-09-27 14:28         ` Tomi Valkeinen [this message]
2019-10-08  8:42           ` Daniel Vetter
2019-08-26  7:46   ` [PATCH v2 3/4] drm/panel: Add and fill drm_panel type field Boris Brezillon
2019-08-23 19:32 ` [PATCH v2 4/4] drm/bridge: panel: Infer connector type from panel by default Laurent Pinchart
2019-08-26  7:47   ` Boris Brezillon

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