linux-kernel - [PATCH 0/6] drm/display: hdmi: add drm_hdmi_connector_mode

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Message-Id: <20241018-hdmi-mode-valid-v1-0-6e49ae4801f7@linaro.org>
Date: Fri, 18 Oct 2024 23:34:18 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>, 
 Dave Stevenson <dave.stevenson@...pberrypi.com>, 
 Maíra Canal <mcanal@...lia.com>, 
 Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>, 
 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>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Subject: [PATCH 0/6] drm/display: hdmi: add drm_hdmi_connector_mode_valid()

Several HDMI drivers have common code pice in the .mode_valid function
that validates RGB / 8bpc rate using the TMDS char rate callbacks.

Move this code piece to the common helper and remove the need to perform
this check manually. In case of DRM_BRIDGE_OP_HDMI bridges the check can
be dropped in favour of performing it in drm_bridge_connector.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
Dmitry Baryshkov (6):
      drm/display: hdmi: add generic mode_valid helper
      drm/sun4i: use drm_hdmi_connector_mode_valid()
      drm/vc4: use drm_hdmi_connector_mode_valid()
      drm/display: bridge_connector: use drm_bridge_connector_mode_valid()
      drm/bridge: lontium-lt9611: drop TMDS char rate check in mode_valid
      drm/bridge: dw-hdmi-qp: replace mode_valid with tmds_char_rate

 drivers/gpu/drm/bridge/lontium-lt9611.c        |  4 +---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c   | 12 +++++-------
 drivers/gpu/drm/display/drm_bridge_connector.c | 16 +++++++++++++++-
 drivers/gpu/drm/display/drm_hdmi_helper.c      | 25 +++++++++++++++++++++++++
 drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c         | 12 +-----------
 drivers/gpu/drm/vc4/vc4_hdmi.c                 |  4 +---
 include/drm/display/drm_hdmi_helper.h          |  4 ++++
 7 files changed, 52 insertions(+), 25 deletions(-)
---
base-commit: af44b5b5776cc6ac1891393a37b1424509f07b35
change-id: 20241018-hdmi-mode-valid-aaec4428501c

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>