linux-kernel - [PATCH v3 0/4] DRM: Bridge: DW_HDMI: Add new features and bug fix

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Date:   Fri, 15 Apr 2022 10:42:46 +0800
From:   Sandor.yu@....com
To:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        andrzej.hajda@...el.com, narmstrong@...libre.com,
        robert.foss@...aro.org, Laurent.pinchart@...asonboard.com,
        jonas@...boo.se, jernej.skrabec@...il.com, hverkuil-cisco@...all.nl
Cc:     Sandor.yu@....com, shengjiu.wang@....com, cai.huoqing@...ux.dev,
        maxime@...no.tech, harry.wentland@....com
Subject: [PATCH v3 0/4] DRM: Bridge: DW_HDMI: Add new features and bug fix

From: Sandor Yu <Sandor.yu@....com>

This is new features and bug fix patch set for DW_HDMI DRM bridge driver
that has verified by NXP i.MX8MPlus.
Two new feature added:
1. Add GPA interface for DW_HDMI Audio.
3. New API for reset PHY Gen1.
Two bugs fixed:
1. Enable overflow workaround for all IP versions later than v1.30a.
2. Clear GCP_Auto bit for 24-bit color depth to pass CTS.

v1->v2:
1. Save CEC interrupt registers in struct dw_hdmi_cec
2. Restore CEC logical address register by cec->addresses.
3. Default enable overflow workaround for all versions later than v1.30a.
4. Add clear_gcp_auto flag to clear gcp_auto bit for all 24-bit color.
5. Remove i.MX8MPlus specific reference.

v2->v3:
1. Drop the patch of Add CEC Suspend/Resume to restore registers.
Because it is not a general feature for other SOCs, their CEC engine are
enabled in suspend for CEC wakeup.
2. More detail comments for patch GCP only for Deep Color.
3. Address coments for patch GPA driver and move enable_audio/disable_audio
from dw_hdmi_phy_ops to dw_hdmi_plat_data.

Sandor Yu (4):
  drm: bridge: dw_hdmi: default enable workaround to clear the overflow
  drm: bridge: dw_hdmi: Enable GCP only for Deep Color
  drm: bridge: dw_hdmi: add reset function for PHY GEN1
  drm: bridge: dw_hdmi: Audio: Add General Parallel Audio (GPA) driver

 drivers/gpu/drm/bridge/synopsys/Kconfig       |  10 +
 drivers/gpu/drm/bridge/synopsys/Makefile      |   1 +
 .../drm/bridge/synopsys/dw-hdmi-gp-audio.c    | 199 ++++++++++++++++++
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 186 ++++++++++++++--
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.h     |  16 +-
 drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c        |   2 +-
 include/drm/bridge/dw_hdmi.h                  |  11 +-
 7 files changed, 400 insertions(+), 25 deletions(-)
 create mode 100644 drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c

-- 
2.25.1