From: Hans de Goede <j.w.r.degoede@gmail.com>
To: "Jani Nikula" <jani.nikula@linux.intel.com>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Daniel Vetter" <daniel@ffwll.ch>
Cc: Hans de Goede <hdegoede@redhat.com>,
intel-gfx <intel-gfx@lists.freedesktop.org>,
dri-devel@lists.freedesktop.org
Subject: [PATCH 0/4] drm/i915/intel_dsi: Read back and use pclk set by the GOP
Date: Tue, 19 Jun 2018 22:18:23 +0200 [thread overview]
Message-ID: <20180619201827.4257-1-hdegoede@redhat.com> (raw)
Hi All,
This patch-set is the result of the work I've been doing recently to
give people a smooth "flickerfree" boot experience where the display
keeps displaying the logo put there by the firmware until it smoothly
fades into the Linux GUI (e.g. gdm).
While testing this on some BYT/CHT devices I noticed the screen going
black for 1 second or so, because the first modeset was not a fast
modeset despite passing i915.fastboot=1 on the kernel commandline.
This is caused by the GOP and the i915 code differing in what they
think the DSI pclk should be. This patch-set fixes this by reading
back the pclk set by the GOP and if it is reasonably close to the
clk calculated by the i915 code, using the GOP set pclk.
Regards,
Hans
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next reply other threads:[~2018-06-19 20:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 20:18 Hans de Goede [this message]
2018-06-19 20:18 ` [PATCH 1/4] drm/i915/intel_dsi: Allow calling intel_dsi_get_pclk with a NULL config Hans de Goede
2018-06-19 20:18 ` [PATCH 2/4] drm/i915/intel_dsi: Move initialization of encoder variables up a bit Hans de Goede
2018-06-19 20:18 ` [PATCH 3/4] drm/i915/intel_dsi: Make intel_connector_get_hw_state() non static Hans de Goede
2018-06-19 20:18 ` [PATCH 4/4] drm/i915/intel_dsi: Read back pclk set by GOP and use that as pclk Hans de Goede
2018-07-06 14:16 ` Ville Syrjälä
2018-07-07 6:32 ` Hans de Goede
2018-07-09 17:37 ` Rodrigo Vivi
2018-07-09 17:43 ` Hans de Goede
2018-07-09 18:14 ` Ville Syrjälä
2018-07-10 7:03 ` Hans de Goede
2018-06-19 20:38 ` ✓ Fi.CI.BAT: success for drm/i915/intel_dsi: Read back and use pclk set by the GOP Patchwork
2018-06-19 21:28 ` ✓ Fi.CI.IGT: " Patchwork
2018-06-29 11:35 ` [PATCH 0/4] " Hans de Goede
2018-07-06 13:14 ` Jani Nikula
2018-07-07 6:10 ` Hans de Goede
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