From: "Noralf Trønnes" <noralf@tronnes.org> To: dri-devel@lists.freedesktop.org Cc: linux-usb@vger.kernel.org, sam@ravnborg.org, peter@stuge.se, lkundrak@v3.sk, markus@raatikainen.cc, pontus.fuchs@gmail.com, hudson@trmm.net, th020394@gmail.com, "Noralf Trønnes" <noralf@tronnes.org>, "Daniel Vetter" <daniel.vetter@ffwll.ch> Subject: [PATCH v5 2/3] drm/probe-helper: Check epoch counter in output_poll_execute() Date: Fri, 12 Feb 2021 18:46:08 +0100 [thread overview] Message-ID: <20210212174609.58977-3-noralf@tronnes.org> (raw) In-Reply-To: <20210212174609.58977-1-noralf@tronnes.org> drm_helper_hpd_irq_event() checks the epoch counter to determine connector status change. This was introduced in commit 5186421cbfe2 ("drm: Introduce epoch counter to drm_connector"). Do the same for output_poll_execute() so it can detect other changes beside connection status value changes. v2: - Add Fixes tag (Daniel) Fixes: 5186421cbfe2 ("drm: Introduce epoch counter to drm_connector") Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> --- drivers/gpu/drm/drm_probe_helper.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index d6017726cc2a..e5432dcf6999 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -623,6 +623,7 @@ static void output_poll_execute(struct work_struct *work) struct drm_connector_list_iter conn_iter; enum drm_connector_status old_status; bool repoll = false, changed; + u64 old_epoch_counter; if (!dev->mode_config.poll_enabled) return; @@ -659,8 +660,9 @@ static void output_poll_execute(struct work_struct *work) repoll = true; + old_epoch_counter = connector->epoch_counter; connector->status = drm_helper_probe_detect(connector, NULL, false); - if (old_status != connector->status) { + if (old_epoch_counter != connector->epoch_counter) { const char *old, *new; /* @@ -689,6 +691,9 @@ static void output_poll_execute(struct work_struct *work) connector->base.id, connector->name, old, new); + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", + connector->base.id, connector->name, + old_epoch_counter, connector->epoch_counter); changed = true; } -- 2.23.0
WARNING: multiple messages have this Message-ID (diff)
From: "Noralf Trønnes" <noralf@tronnes.org> To: dri-devel@lists.freedesktop.org Cc: hudson@trmm.net, markus@raatikainen.cc, sam@ravnborg.org, linux-usb@vger.kernel.org, th020394@gmail.com, lkundrak@v3.sk, pontus.fuchs@gmail.com, Daniel Vetter <daniel.vetter@ffwll.ch>, peter@stuge.se Subject: [PATCH v5 2/3] drm/probe-helper: Check epoch counter in output_poll_execute() Date: Fri, 12 Feb 2021 18:46:08 +0100 [thread overview] Message-ID: <20210212174609.58977-3-noralf@tronnes.org> (raw) In-Reply-To: <20210212174609.58977-1-noralf@tronnes.org> drm_helper_hpd_irq_event() checks the epoch counter to determine connector status change. This was introduced in commit 5186421cbfe2 ("drm: Introduce epoch counter to drm_connector"). Do the same for output_poll_execute() so it can detect other changes beside connection status value changes. v2: - Add Fixes tag (Daniel) Fixes: 5186421cbfe2 ("drm: Introduce epoch counter to drm_connector") Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> --- drivers/gpu/drm/drm_probe_helper.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index d6017726cc2a..e5432dcf6999 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -623,6 +623,7 @@ static void output_poll_execute(struct work_struct *work) struct drm_connector_list_iter conn_iter; enum drm_connector_status old_status; bool repoll = false, changed; + u64 old_epoch_counter; if (!dev->mode_config.poll_enabled) return; @@ -659,8 +660,9 @@ static void output_poll_execute(struct work_struct *work) repoll = true; + old_epoch_counter = connector->epoch_counter; connector->status = drm_helper_probe_detect(connector, NULL, false); - if (old_status != connector->status) { + if (old_epoch_counter != connector->epoch_counter) { const char *old, *new; /* @@ -689,6 +691,9 @@ static void output_poll_execute(struct work_struct *work) connector->base.id, connector->name, old, new); + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", + connector->base.id, connector->name, + old_epoch_counter, connector->epoch_counter); changed = true; } -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2021-02-12 17:47 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-12 17:46 [PATCH v5 0/3] GUD USB Display driver Noralf Trønnes 2021-02-12 17:46 ` Noralf Trønnes 2021-02-12 17:46 ` [PATCH v5 1/3] drm/uapi: Add USB connector type Noralf Trønnes 2021-02-12 17:46 ` Noralf Trønnes 2021-02-12 17:46 ` Noralf Trønnes [this message] 2021-02-12 17:46 ` [PATCH v5 2/3] drm/probe-helper: Check epoch counter in output_poll_execute() Noralf Trønnes 2021-02-12 17:46 ` [PATCH v5 3/3] drm: Add Generic USB Display driver Noralf Trønnes 2021-02-12 17:46 ` Noralf Trønnes 2021-02-15 11:58 ` Peter Stuge 2021-02-15 11:58 ` Peter Stuge 2021-02-16 13:19 ` Noralf Trønnes 2021-02-16 13:19 ` Noralf Trønnes 2021-02-16 13:36 ` Oliver Neukum 2021-02-16 13:36 ` Oliver Neukum 2021-02-16 16:40 ` Noralf Trønnes 2021-02-16 16:40 ` Noralf Trønnes 2021-02-16 16:43 ` Noralf Trønnes 2021-02-16 16:43 ` Noralf Trønnes
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