linux-kernel - [PATCH v4 00/12] drm/bridge: tc358768: Fixes and timings improvements

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Message-Id: <20230906-tc358768-v4-0-31725f008a50@ideasonboard.com>
Date:   Wed, 06 Sep 2023 09:50:47 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Péter Ujfalusi <peter.ujfalusi@...il.com>,
        Maxim Schwalm <maxim.schwalm@...il.com>,
        Francesco Dolcini <francesco@...cini.it>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Aradhya Bhatia <a-bhatia1@...com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Thierry Reding <treding@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>
Subject: [PATCH v4 00/12] drm/bridge: tc358768: Fixes and timings
 improvements

This series contains various fixes and cleanups for TC358768. The target
of this work is to get TC358768 working on Toradex's AM62 based board,
which has the following display pipeline:

AM62 DPI -> TC358768 -> LT8912B -> HDMI connector

The main thing the series does is to improve the DSI HSW, HFP and VSDly
calculations.

 Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
Changes in v4:
- Add Tested-by tags
- Fix a typo in a comment 
- Link to v3: https://lore.kernel.org/r/20230822-tc358768-v3-0-c82405dac0c1@ideasonboard.com

Changes in v3:
- Add Peter's reviewed-bys
- Move "Default to positive h/v syncs" earlier in the series to avoid
  regression in the middle of the series
- Link to v2: https://lore.kernel.org/r/20230816-tc358768-v2-0-242b9d5f703a@ideasonboard.com

Changes in v2:
- Add "drm/tegra: rgb: Parameterize V- and H-sync polarities" so that
  Tegra can configure the polarities correctly.
- Add "drm/bridge: tc358768: Default to positive h/v syncs" as we don't
  (necessarily) have the polarities set in the mode.
- Drop "drm/bridge: tc358768: Add DRM_BRIDGE_ATTACH_NO_CONNECTOR
  support" as it's not needed for DRM_BRIDGE_ATTACH_NO_CONNECTOR
  support.
- Link to v1: https://lore.kernel.org/r/20230804-tc358768-v1-0-1afd44b7826b@ideasonboard.com

---
Thierry Reding (1):
      drm/tegra: rgb: Parameterize V- and H-sync polarities

Tomi Valkeinen (11):
      drm/bridge: tc358768: Fix use of uninitialized variable
      drm/bridge: tc358768: Default to positive h/v syncs
      drm/bridge: tc358768: Fix bit updates
      drm/bridge: tc358768: Cleanup PLL calculations
      drm/bridge: tc358768: Use struct videomode
      drm/bridge: tc358768: Print logical values, not raw register values
      drm/bridge: tc358768: Use dev for dbg prints, not priv->dev
      drm/bridge: tc358768: Rename dsibclk to hsbyteclk
      drm/bridge: tc358768: Clean up clock period code
      drm/bridge: tc358768: Fix tc358768_ns_to_cnt()
      drm/bridge: tc358768: Attempt to fix DSI horizontal timings

 drivers/gpu/drm/bridge/tc358768.c | 381 ++++++++++++++++++++++++++++----------
 drivers/gpu/drm/tegra/rgb.c       |  16 +-
 2 files changed, 295 insertions(+), 102 deletions(-)
---
base-commit: f45acf7acf75921c0409d452f0165f51a19a74fd
change-id: 20230804-tc358768-1b6949ef2e3d

Best regards,
-- 
Tomi Valkeinen <tomi.valkeinen@...asonboard.com>