From: Kaustabh Chakraborty <kauschluss@disroot.org>
To: Inki Dae <inki.dae@samsung.com>,
Jagan Teki <jagan@amarulasolutions.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Kaustabh Chakraborty <kauschluss@disroot.org>,
stable@vger.kernel.org
Subject: [PATCH RESEND v2 0/2] Fixes and enhancements for Exynos (7870) DSIM bridge driver
Date: Sun, 22 Mar 2026 22:32:05 +0530 [thread overview]
Message-ID: <20260322-exynos-dsim-fixes-v2-0-0069c9e1d9bf@disroot.org> (raw)
Since v6.17, there is a regression for the Exynos 7870 DSIM driver. The
display occasionally had random aberration when the panel was turned on.
The first patch addresses that.
The second patch replaces an implicit loop for waiting for PLL
stabilization with an interrupt-based solution, which should be more
reliable. This solution was suggested by Inki Dae in a discussion of an
earlier patch series sent by me. For further details, refer to its
commit description.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
---
Changes in v2:
- drop now-not-required [v1 1/3] (Marek Szyprowski)
- Link to v1: https://lore.kernel.org/r/20260124-exynos-dsim-fixes-v1-0-122d047a23d1@disroot.org
---
Kaustabh Chakraborty (2):
drm/bridge: samsung-dsim: enable MFLUSH_VS for Exynos 7870 DSIM
drm/bridge: samsung-dsim: use DSIM interrupt to wait for PLL stability
drivers/gpu/drm/bridge/samsung-dsim.c | 48 +++++++++++++++++++++++++----------
include/drm/bridge/samsung-dsim.h | 1 +
2 files changed, 35 insertions(+), 14 deletions(-)
---
base-commit: 9845cf73f7db6094c0d8419d6adb848028f4a921
change-id: 20260124-exynos-dsim-fixes-5383d6a6f073
Best regards,
--
Kaustabh Chakraborty <kauschluss@disroot.org>
next reply other threads:[~2026-03-22 17:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-22 17:02 Kaustabh Chakraborty [this message]
2026-03-22 17:02 ` [PATCH RESEND v2 1/2] drm/bridge: samsung-dsim: enable MFLUSH_VS for Exynos 7870 DSIM Kaustabh Chakraborty
2026-03-24 22:14 ` Claude review: " Claude Code Review Bot
2026-03-22 17:02 ` [PATCH RESEND v2 2/2] drm/bridge: samsung-dsim: use DSIM interrupt to wait for PLL stability Kaustabh Chakraborty
2026-03-24 22:14 ` Claude review: " Claude Code Review Bot
2026-03-24 22:14 ` Claude review: Fixes and enhancements for Exynos (7870) DSIM bridge driver Claude Code Review Bot
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