From: Linus Walleij <linus.walleij@linaro.org>
To: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>,
"open list:DRM PANEL DRIVERS" <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 00/12] drm: Put drm_display_mode on diet
Date: Fri, 21 Feb 2020 16:09:52 +0100 [thread overview]
Message-ID: <CACRpkdZRTo+TzSeuADeeq_DWFvZD+Y_iNMWiZOTqtTJ1vqXv9Q@mail.gmail.com> (raw)
In-Reply-To: <20200219203544.31013-1-ville.syrjala@linux.intel.com>
On Wed, Feb 19, 2020 at 9:35 PM Ville Syrjala
<ville.syrjala@linux.intel.com> wrote:
> drm/exynos: Use mode->clock instead of reverse calculating it from the vrefresh
> drm: Nuke mode->vrefresh
I'm sure this is fine.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
We need one: either clock or refresh settings, so it does make sense
to calculate one from the other.
So is the reasoning such that we mostly know the clock and the
resolutions and then calculate vrefresh? (It makes sense to me in
a way.)
What I am worried about here is that some of these (especially panels)
are probably already out of sync so we need to ascertain that the clock
is correct-ish everywhere, so let's be prepared for some regressions.
For command-mode DSI panels the vrefresh can become quite
weird I think, the vrefresh is different from what you can reverse
calculate (I know this from experiments) but I doubt we care
much.
Yours,
Linus Walleij
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prev parent reply other threads:[~2020-02-21 15:10 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 20:35 [PATCH 00/12] drm: Put drm_display_mode on diet Ville Syrjala
2020-02-19 20:35 ` [PATCH 01/12] drm: Nuke mode->hsync Ville Syrjala
2020-02-20 10:55 ` [Intel-gfx] " Emil Velikov
2020-02-21 16:04 ` Ville Syrjälä
2020-02-21 16:55 ` Emil Velikov
2020-02-19 20:35 ` [PATCH 02/12] drm/exynos: Use mode->clock instead of reverse calculating it from the vrefresh Ville Syrjala
2020-02-20 10:56 ` Emil Velikov
2020-02-25 0:49 ` Inki Dae
2020-02-19 20:35 ` [PATCH 03/12] drm/i915: Introduce some local intel_dp variables Ville Syrjala
2020-02-20 11:13 ` [Intel-gfx] " Emil Velikov
2020-02-19 20:35 ` [PATCH 04/12] drm: Nuke mode->vrefresh Ville Syrjala
2020-02-20 12:00 ` Emil Velikov
2020-02-22 12:32 ` Sam Ravnborg
2020-02-24 13:14 ` Ville Syrjälä
2020-02-24 14:14 ` Andrzej Hajda
2020-02-25 11:21 ` Ville Syrjälä
2020-02-25 15:19 ` Andrzej Hajda
2020-02-25 15:45 ` Ville Syrjälä
2020-02-25 19:27 ` Ville Syrjälä
2020-02-25 21:52 ` Linus Walleij
2020-02-19 20:35 ` [PATCH 05/12] drm/msm/dpu: Stop copying around mode->private_flags Ville Syrjala
2020-02-20 11:24 ` Emil Velikov
2020-02-20 15:33 ` Ville Syrjälä
2020-02-20 18:14 ` Daniel Vetter
2020-02-19 20:35 ` [PATCH 06/12] drm: Shrink {width,height}_mm to u16 Ville Syrjala
2020-02-20 12:48 ` [Intel-gfx] " Emil Velikov
2020-02-19 20:35 ` [PATCH 07/12] drm: Shrink mode->type to u8 Ville Syrjala
2020-02-20 18:17 ` [Intel-gfx] " Daniel Vetter
2020-02-19 20:35 ` [PATCH 08/12] drm: Make mode->flags u32 Ville Syrjala
2020-02-19 20:35 ` [PATCH 09/12] drm: Shrink drm_display_mode timings Ville Syrjala
2020-02-20 18:19 ` [Intel-gfx] " Daniel Vetter
2020-02-20 18:47 ` Ville Syrjälä
2020-02-21 16:13 ` Sam Ravnborg
2020-02-21 17:27 ` Sam Ravnborg
2020-02-24 13:06 ` Ville Syrjälä
2020-02-19 20:35 ` [PATCH 10/12] drm: Flatten drm_mode_vrefresh() Ville Syrjala
2020-02-19 20:35 ` [PATCH 11/12] drm: Shrink mode->private_flags Ville Syrjala
2020-02-21 16:15 ` Sam Ravnborg
2020-02-24 13:23 ` Ville Syrjälä
2020-02-19 20:35 ` [PATCH 12/12] drm: pahole struct drm_display_mode Ville Syrjala
2020-02-20 12:53 ` Emil Velikov
2020-02-19 21:18 ` [PATCH 00/12] drm: Put drm_display_mode on diet Ville Syrjälä
2020-02-20 13:21 ` Emil Velikov
2020-02-20 14:27 ` Ville Syrjälä
2020-02-20 15:34 ` [Intel-gfx] " Ville Syrjälä
2020-02-21 11:32 ` Jani Nikula
2020-02-21 11:43 ` Ville Syrjälä
2020-02-21 14:42 ` Daniel Vetter
2020-02-21 15:40 ` Ville Syrjälä
2020-02-21 16:09 ` Ville Syrjälä
2020-02-21 17:16 ` Daniel Vetter
2020-02-21 17:49 ` Ville Syrjälä
2020-02-20 17:01 ` Emil Velikov
2020-02-21 15:09 ` Linus Walleij [this message]
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