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Message-Id: <20240715-drm-bridge-connector-fix-hdmi-reset-v4-1-61e6417cfd99@linaro.org> Date: Mon, 15 Jul 2024 09:33:01 +0300 From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org> 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>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, Dave Stevenson <dave.stevenson@...pberrypi.com>, Laurentiu Palcu <laurentiu.palcu@....nxp.com>, Lucas Stach <l.stach@...gutronix.de>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, Paul Cercueil <paul@...pouillou.net>, Anitha Chrisanthus <anitha.chrisanthus@...el.com>, Edmund Dea <edmund.j.dea@...el.com>, Chun-Kuang Hu <chunkuang.hu@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>, Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, Martin Blumenstingl <martin.blumenstingl@...glemail.com>, Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, Kieran Bingham <kieran.bingham+renesas@...asonboard.com>, Biju Das <biju.das.jz@...renesas.com>, Geert Uytterhoeven <geert+renesas@...der.be>, Sandy Huang <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, Andy Yan <andy.yan@...k-chips.com>, Thierry Reding <thierry.reding@...il.com>, Mikko Perttunen <mperttunen@...dia.com>, Jonathan Hunter <jonathanh@...dia.com>, Jyri Sarha <jyri.sarha@....fi>, Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> Cc: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, dri-devel@...ts.freedesktop.org, igt-dev@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org, linux-mediatek@...ts.infradead.org, linux-amlogic@...ts.infradead.org, linux-arm-msm@...r.kernel.org, linux-renesas-soc@...r.kernel.org, linux-rockchip@...ts.infradead.org, linux-tegra@...r.kernel.org Subject: [PATCH v4 1/5] drm/display: stop depending on DRM_DISPLAY_HELPER Kconfig symbols should not declare dependency on DRM_DISPLAY_HELPER. Move all parts of DRM_DISPLAY_HELPER to an if DRM_DISPLAY_HELPER block. It is not possible to make those symbols select DRM_DISPLAY_HELPER because of the link issues when a part of the helper is selected to be built-in, while other part is selected to be as module. In such a case the modular part doesn't get built at all, leading to undefined symbols. The only viable alternative is to split drm_display_helper.ko into several small modules, each of them having their own dependencies. Suggested-by: Maxime Ripard <mripard@...nel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org> --- drivers/gpu/drm/display/Kconfig | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index a2e42014ffe0..9c2da1e48b75 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -1,19 +1,20 @@ # SPDX-License-Identifier: MIT +config DRM_DISPLAY_DP_AUX_BUS + tristate + depends on DRM + depends on OF || COMPILE_TEST + config DRM_DISPLAY_HELPER tristate depends on DRM help DRM helpers for display adapters. -config DRM_DISPLAY_DP_AUX_BUS - tristate - depends on DRM - depends on OF || COMPILE_TEST +if DRM_DISPLAY_HELPER config DRM_DISPLAY_DP_AUX_CEC bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" - depends on DRM && DRM_DISPLAY_HELPER select DRM_DISPLAY_DP_HELPER select CEC_CORE help @@ -25,7 +26,6 @@ config DRM_DISPLAY_DP_AUX_CEC config DRM_DISPLAY_DP_AUX_CHARDEV bool "DRM DP AUX Interface" - depends on DRM && DRM_DISPLAY_HELPER select DRM_DISPLAY_DP_HELPER help Choose this option to enable a /dev/drm_dp_auxN node that allows to @@ -34,7 +34,6 @@ config DRM_DISPLAY_DP_AUX_CHARDEV config DRM_DISPLAY_DP_HELPER bool - depends on DRM_DISPLAY_HELPER help DRM display helpers for DisplayPort. @@ -61,25 +60,23 @@ config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG config DRM_DISPLAY_DSC_HELPER bool - depends on DRM_DISPLAY_HELPER help DRM display helpers for VESA DSC (used by DSI and DisplayPort). config DRM_DISPLAY_HDCP_HELPER bool - depends on DRM_DISPLAY_HELPER help DRM display helpers for HDCP. config DRM_DISPLAY_HDMI_HELPER bool - depends on DRM_DISPLAY_HELPER help DRM display helpers for HDMI. config DRM_DISPLAY_HDMI_STATE_HELPER bool - depends on DRM_DISPLAY_HELPER select DRM_DISPLAY_HDMI_HELPER help DRM KMS state helpers for HDMI. + +endif # DRM_DISPLAY_HELPER -- 2.39.2
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