From: Douglas Anderson <dianders@chromium.org> To: Andrzej Hajda <a.hajda@samsung.com>, Neil Armstrong <narmstrong@baylibre.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@siol.net>, Sam Ravnborg <sam@ravnborg.org>, Wolfram Sang <wsa@kernel.org> Cc: Stephen Boyd <swboyd@chromium.org>, robdclark@chromium.org, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>, Steev Klimaszewski <steev@kali.org>, Bjorn Andersson <bjorn.andersson@linaro.org>, linux-arm-msm@vger.kernel.org, Linus W <linus.walleij@linaro.org>, Douglas Anderson <dianders@chromium.org>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Boris Brezillon <boris.brezillon@collabora.com>, Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 01/27] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Date: Fri, 16 Apr 2021 15:39:24 -0700 [thread overview] Message-ID: <20210416153909.v4.1.If62a003f76a2bc4ccc6c53565becc05d2aad4430@changeid> (raw) In-Reply-To: <20210416223950.3586967-1-dianders@chromium.org> The drm_bridge_chain_pre_enable() is not the proper opposite of drm_bridge_chain_post_disable(). It continues along the chain to _before_ the starting bridge. Let's fix that. Fixes: 05193dc38197 ("drm/bridge: Make the bridge chain a double-linked list") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- (no changes since v1) drivers/gpu/drm/drm_bridge.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 64f0effb52ac..044acd07c153 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -522,6 +522,9 @@ void drm_bridge_chain_pre_enable(struct drm_bridge *bridge) list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) { if (iter->funcs->pre_enable) iter->funcs->pre_enable(iter); + + if (iter == bridge) + break; } } EXPORT_SYMBOL(drm_bridge_chain_pre_enable); -- 2.31.1.368.gbe11c130af-goog
WARNING: multiple messages have this Message-ID (diff)
From: Douglas Anderson <dianders@chromium.org> To: Andrzej Hajda <a.hajda@samsung.com>, Neil Armstrong <narmstrong@baylibre.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@siol.net>, Sam Ravnborg <sam@ravnborg.org>, Wolfram Sang <wsa@kernel.org> Cc: robdclark@chromium.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@linux.ie>, linux-arm-msm@vger.kernel.org, Douglas Anderson <dianders@chromium.org>, Steev Klimaszewski <steev@kali.org>, Bjorn Andersson <bjorn.andersson@linaro.org>, Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>, Boris Brezillon <boris.brezillon@collabora.com>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Stephen Boyd <swboyd@chromium.org>, linux-kernel@vger.kernel.org Subject: [PATCH v4 01/27] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Date: Fri, 16 Apr 2021 15:39:24 -0700 [thread overview] Message-ID: <20210416153909.v4.1.If62a003f76a2bc4ccc6c53565becc05d2aad4430@changeid> (raw) In-Reply-To: <20210416223950.3586967-1-dianders@chromium.org> The drm_bridge_chain_pre_enable() is not the proper opposite of drm_bridge_chain_post_disable(). It continues along the chain to _before_ the starting bridge. Let's fix that. Fixes: 05193dc38197 ("drm/bridge: Make the bridge chain a double-linked list") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- (no changes since v1) drivers/gpu/drm/drm_bridge.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 64f0effb52ac..044acd07c153 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -522,6 +522,9 @@ void drm_bridge_chain_pre_enable(struct drm_bridge *bridge) list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) { if (iter->funcs->pre_enable) iter->funcs->pre_enable(iter); + + if (iter == bridge) + break; } } EXPORT_SYMBOL(drm_bridge_chain_pre_enable); -- 2.31.1.368.gbe11c130af-goog _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2021-04-16 22:40 UTC|newest] Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-16 22:39 [PATCH v4 00/27] drm: Fix EDID reading on ti-sn65dsi86; solve some chicken-and-egg problems Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson [this message] 2021-04-16 22:39 ` [PATCH v4 01/27] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 02/27] drm/bridge: ti-sn65dsi86: Simplify refclk handling Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 03/27] drm/bridge: ti-sn65dsi86: Remove incorrectly tagged kerneldoc comment Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 04/27] drm/bridge: ti-sn65dsi86: Reorder remove() Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 05/27] drm/bridge: ti-sn65dsi86: Move drm_panel_unprepare() to post_disable() Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 06/27] drm/bridge: ti-sn65dsi86: Get rid of the useless detect() function Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 07/27] drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-16 22:39 ` [PATCH v4 08/27] drm/bridge: ti-sn65dsi86: Rename the main driver data structure Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:28 ` Bjorn Andersson 2021-04-23 14:28 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 09/27] drm/bridge: ti-sn65dsi86: More renames in prep for sub-devices Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:30 ` Bjorn Andersson 2021-04-23 14:30 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 10/27] drm/bridge: ti-sn65dsi86: Clean debugfs code Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:35 ` Bjorn Andersson 2021-04-23 14:35 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 11/27] drm/bridge: ti-sn65dsi86: Add local var for "dev" to simplify probe Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:38 ` Bjorn Andersson 2021-04-23 14:38 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 12/27] drm/bridge: ti-sn65dsi86: Cleanup managing of drvdata Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:38 ` Bjorn Andersson 2021-04-23 14:38 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 13/27] drm/bridge: ti-sn65dsi86: Use devm to do our runtime_disable Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:39 ` Bjorn Andersson 2021-04-23 14:39 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 14/27] drm/bridge: ti-sn65dsi86: Move all the chip-related init to the start Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:41 ` Bjorn Andersson 2021-04-23 14:41 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 15/27] drm/bridge: ti-sn65dsi86: Break GPIO and MIPI-to-eDP bridge into sub-drivers Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-17 2:31 ` kernel test robot 2021-04-17 2:31 ` kernel test robot 2021-04-19 15:43 ` Doug Anderson 2021-04-19 15:43 ` Doug Anderson 2021-04-23 14:49 ` Bjorn Andersson 2021-04-23 14:49 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 16/27] drm/panel: panel-simple: Get rid of hacky HPD chicken-and-egg code Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:50 ` Bjorn Andersson 2021-04-23 14:50 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 17/27] drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:51 ` Bjorn Andersson 2021-04-23 14:51 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 18/27] drm/bridge: ti-sn65dsi86: Code motion of refclk management functions Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:51 ` Bjorn Andersson 2021-04-23 14:51 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 19/27] drm/bridge: ti-sn65dsi86: If refclk, DP AUX can happen w/out pre-enable Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:56 ` Bjorn Andersson 2021-04-23 14:56 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 20/27] drm/bridge: ti-sn65dsi86: Promote the AUX channel to its own sub-dev Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 14:59 ` Bjorn Andersson 2021-04-23 14:59 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 21/27] i2c: i2c-core-of: Fix corner case of finding adapter by node Douglas Anderson 2021-04-23 15:12 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 22/27] drm/panel: panel-simple: Remove extra call: drm_connector_update_edid_property() Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 15:15 ` Bjorn Andersson 2021-04-23 15:15 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 23/27] drm/panel: panel-simple: Power the panel when reading the EDID Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 15:16 ` Bjorn Andersson 2021-04-23 15:16 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 24/27] drm/panel: panel-simple: Cache the EDID as long as we retain power Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 16:12 ` Bjorn Andersson 2021-04-23 16:12 ` Bjorn Andersson 2021-04-23 16:30 ` Doug Anderson 2021-04-23 16:30 ` Doug Anderson 2021-04-16 22:39 ` [PATCH v4 25/27] drm/bridge: ti-sn65dsi86: Don't read EDID blob over DDC Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 16:13 ` Bjorn Andersson 2021-04-23 16:13 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 26/27] arm64: dts: qcom: Link the panel to the bridge's DDC bus Douglas Anderson 2021-04-23 16:16 ` Bjorn Andersson 2021-04-16 22:39 ` [PATCH v4 27/27] drm/panel: panel-simple: Prepare/unprepare are refcounted, not forced Douglas Anderson 2021-04-16 22:39 ` Douglas Anderson 2021-04-23 16:16 ` Bjorn Andersson 2021-04-23 16:16 ` Bjorn Andersson 2021-04-23 16:46 ` Doug Anderson 2021-04-23 16:46 ` Doug Anderson 2021-04-20 16:42 ` [PATCH v4 00/27] drm: Fix EDID reading on ti-sn65dsi86; solve some chicken-and-egg problems Doug Anderson 2021-04-20 16:42 ` Doug Anderson
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