linux-kernel - [PATCH v3 00/10] drm/bridge: dw-hdmi: implement bus-format negotiation and YUV420 support

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Message-Id: <20191218154637.17509-1-narmstrong@baylibre.com>
Date:   Wed, 18 Dec 2019 16:46:27 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     a.hajda@...sung.com, Laurent.pinchart@...asonboard.com,
        jonas@...boo.se, jernej.skrabec@...l.net,
        boris.brezillon@...labora.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 00/10] drm/bridge: dw-hdmi: implement bus-format negotiation and YUV420 support

This patchset is based on Boris's v4 "drm: Add support for bus-format negotiation" at [1]
patchset to implement full bus-format negotiation for DW-HDMI, including YUV420 support and
10/12/16bit YUV444, YUV422 and RGB. The Color Space Converter support is already implemented.

And the counterpart implementation in the Amlogic Meson VPU dw-hdmi glue :
- basic bus-format negotiation to select YUV444 bus-format as DW-HDMI input
- YUV420 support when HDMI2.0 YUV420 modeset

This is a follow-up from the previous attempts :
- "drm/meson: Add support for HDMI2.0 YUV420 4k60" at [2]
- "drm/meson: Add support for HDMI2.0 4k60" at [3]

Changes since RFC v2 at [5]:
- Added fixes from Jonas, who tested and integrated it for Rockchip SoCs
- Added support for 10/12/16bit tmds clock calculation
- Added support for max_bcp connector property
- Adapted to Boris's v4 patchset
- Fixed typos reported by boris

Changes since RFC v1 at [4]:
- Rewrote negociation using the v2 patchset, including full DW-HDMI fmt negociation

[1] https://patchwork.freedesktop.org/patch/msgid/20191203141515.3597631-1-boris.brezillon@collabora.com
[2] https://patchwork.freedesktop.org/patch/msgid/20190520133753.23871-1-narmstrong@baylibre.com
[3] https://patchwork.freedesktop.org/patch/msgid/1549022873-40549-1-git-send-email-narmstrong@baylibre.com
[4] https://patchwork.freedesktop.org/patch/msgid/20190820084109.24616-1-narmstrong@baylibre.com
[5] https://patchwork.freedesktop.org/patch/msgid/ 20190827081425.15011-1-narmstrong@...libre.com

Jonas Karlman (2):
  drm/bridge: dw-hdmi: set mtmdsclock for deep color
  drm/bridge: dw-hdmi: add max bpc connector property

Neil Armstrong (8):
  drm/bridge: synopsys: dw-hdmi: add bus format negociation
  drm/bridge: synopsys: dw-hdmi: allow ycbcr420 modes for >= 0x200a
  drm/meson: venc: make drm_display_mode const
  drm/meson: meson_dw_hdmi: add bridge and switch to drm_bridge_funcs
  drm/meson: dw-hdmi: stop enforcing input_bus_format
  drm/meson: venc: add support for YUV420 setup
  drm/meson: vclk: add support for YUV420 setup
  drm/meson: Add YUV420 output support

 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 299 +++++++++++++++++++++-
 drivers/gpu/drm/meson/meson_dw_hdmi.c     | 193 +++++++++++---
 drivers/gpu/drm/meson/meson_vclk.c        |  93 +++++--
 drivers/gpu/drm/meson/meson_vclk.h        |   7 +-
 drivers/gpu/drm/meson/meson_venc.c        |  10 +-
 drivers/gpu/drm/meson/meson_venc.h        |   4 +-
 drivers/gpu/drm/meson/meson_venc_cvbs.c   |   3 +-
 include/drm/bridge/dw_hdmi.h              |   1 +
 8 files changed, 538 insertions(+), 72 deletions(-)

-- 
2.22.0