Linux Serial subsystem development
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From: Thomas Zimmermann <tzimmermann@suse.de>
To: gregkh@linuxfoundation.org, jirislaby@kernel.org, deller@gmx.de,
	James.Bottomley@HansenPartnership.com, simona@ffwll.ch
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
	linux-fbdev@vger.kernel.org, linux-parisc@vger.kernel.org,
	sashiko-reviews@lists.linux.dev,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH v2 2/7] dummycon: Implement struct consw.con_unblank
Date: Fri, 16 Oct 2026 11:11:52 +0200	[thread overview]
Message-ID: <20261016093357.33294-3-tzimmermann@suse.de> (raw)
In-Reply-To: <20261016093357.33294-1-tzimmermann@suse.de>

Implement con_unblank from struct consw as a duplicate of con_blank.
As dummycon does not do anything, the implementation only returns
true or false to trigger a redraw (or not).

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/video/console/dummycon.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 7d02470f19b9..ea34a7e84472 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -86,6 +86,11 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
 	return true;
 }
 
+static bool dummycon_unblank(struct vc_data *vc)
+{
+	return true;
+}
+
 static bool dummycon_switch(struct vc_data *vc)
 {
 	/*
@@ -104,6 +109,12 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
 {
 	return false;
 }
+
+static bool dummycon_unblank(struct vc_data *vc)
+{
+	return false;
+}
+
 static bool dummycon_switch(struct vc_data *vc)
 {
 	return false;
@@ -155,5 +166,6 @@ const struct consw dummy_con = {
 	.con_scroll =	dummycon_scroll,
 	.con_switch =	dummycon_switch,
 	.con_blank =	dummycon_blank,
+	.con_unblank =	dummycon_unblank,
 };
 EXPORT_SYMBOL_GPL(dummy_con);
-- 
2.55.0


  parent reply	other threads:[~2026-10-16  9:34 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-16  9:11 [PATCH v2 0/7] vt: Simplify console-blanking interface Thomas Zimmermann
2026-10-16  9:11 ` [PATCH v2 1/7] vt: Add con_unblank callback to struct consw Thomas Zimmermann
2026-10-16  9:44   ` sashiko-bot
2026-10-16  9:11 ` Thomas Zimmermann [this message]
2026-10-16  9:46   ` [PATCH v2 2/7] dummycon: Implement struct consw.con_unblank sashiko-bot
2026-10-16  9:11 ` [PATCH v2 3/7] fbcon: " Thomas Zimmermann
2026-10-16 10:01   ` sashiko-bot
2026-10-16  9:11 ` [PATCH v2 4/7] newport_con: " Thomas Zimmermann
2026-10-16 10:07   ` sashiko-bot
2026-10-16  9:11 ` [PATCH v2 5/7] sticon: " Thomas Zimmermann
2026-10-16 10:13   ` sashiko-bot
2026-10-16  9:11 ` [PATCH v2 6/7] vgacon: " Thomas Zimmermann
2026-10-16 10:26   ` sashiko-bot
2026-10-16  9:11 ` [PATCH v2 7/7] vt: Remove old-style con_blank Thomas Zimmermann
2026-10-16 10:38   ` sashiko-bot

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