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From: Miao Wang <shankerwangmiao@gmail.com>
To: Binbin Zhou <zhoubinbin@loongson.cn>,
	 Chong Qiao <qiaochong@loongson.cn>, Lee Jones <lee@kernel.org>,
	 Huacai Chen <chenhuacai@kernel.org>,
	Corey Minyard <corey@minyard.net>,
	 Linus Walleij <linusw@kernel.org>,
	Bartosz Golaszewski <brgl@kernel.org>
Cc: Xi Ruoyao <xry111@xry111.site>, WANG Xuerui <kernel@xen0n.name>,
	 Yinbo Zhu <zhuyinbo@loongson.cn>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	 mfd@lists.linux.dev, linux-kernel@vger.kernel.org,
	 linux-gpio@vger.kernel.org,
	openipmi-developer@lists.sourceforge.net,
	 Miao Wang <shankerwangmiao@gmail.com>
Subject: [PATCH RFC v6 3/7] mfd: ls2kbmc: Redraw using exported functions
Date: Wed, 05 Aug 2026 03:14:21 +0800	[thread overview]
Message-ID: <20260805-ls2kbmc-mod-v6-3-16ccde412d86@gmail.com> (raw)
In-Reply-To: <20260805-ls2kbmc-mod-v6-0-16ccde412d86@gmail.com>

Use update_screen, i.e. redraw_screen() to trigger the redraw of the
current vt.

Fixes: d952bba3fbb5 ("mfd: ls2kbmc: Add Loongson-2K BMC reset function support")
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
---
 drivers/mfd/ls2k-bmc-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/ls2k-bmc-core.c b/drivers/mfd/ls2k-bmc-core.c
index a9a30611dde9e31cd86ff67b1d6e02bf67b34755..e12f2ca2fbef360ceda14ee6fc64f500e4944120 100644
--- a/drivers/mfd/ls2k-bmc-core.c
+++ b/drivers/mfd/ls2k-bmc-core.c
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <linux/stop_machine.h>
 #include <linux/vt_kern.h>
+#include <linux/console.h>
 
 /* LS2K BMC resources */
 #define LS2K_DISPLAY_RES_START		(SZ_16M + SZ_2M)
@@ -310,7 +311,9 @@ static void ls2k_bmc_events_fn(struct work_struct *work)
 
 	if (IS_ENABLED(CONFIG_VT)) {
 		/* Re-push the display due to previous PCI-E loss. */
-		set_console(vt_move_to_console(MAX_NR_CONSOLES - 1, 1));
+		console_lock();
+		update_screen(vc_cons[fg_console].d);
+		console_unlock();
 	}
 }
 

-- 
2.49.0


WARNING: multiple messages have this Message-ID (diff)
From: Miao Wang via B4 Relay <devnull+shankerwangmiao.gmail.com@kernel.org>
To: Binbin Zhou <zhoubinbin@loongson.cn>,
	 Chong Qiao <qiaochong@loongson.cn>, Lee Jones <lee@kernel.org>,
	 Huacai Chen <chenhuacai@kernel.org>,
	Corey Minyard <corey@minyard.net>,
	 Linus Walleij <linusw@kernel.org>,
	Bartosz Golaszewski <brgl@kernel.org>
Cc: Xi Ruoyao <xry111@xry111.site>, WANG Xuerui <kernel@xen0n.name>,
	 Yinbo Zhu <zhuyinbo@loongson.cn>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	 mfd@lists.linux.dev, linux-kernel@vger.kernel.org,
	 linux-gpio@vger.kernel.org,
	openipmi-developer@lists.sourceforge.net,
	 Miao Wang <shankerwangmiao@gmail.com>
Subject: [PATCH RFC v6 3/7] mfd: ls2kbmc: Redraw using exported functions
Date: Wed, 05 Aug 2026 03:14:21 +0800	[thread overview]
Message-ID: <20260805-ls2kbmc-mod-v6-3-16ccde412d86@gmail.com> (raw)
In-Reply-To: <20260805-ls2kbmc-mod-v6-0-16ccde412d86@gmail.com>

From: Miao Wang <shankerwangmiao@gmail.com>

Use update_screen, i.e. redraw_screen() to trigger the redraw of the
current vt.

Fixes: d952bba3fbb5 ("mfd: ls2kbmc: Add Loongson-2K BMC reset function support")
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
---
 drivers/mfd/ls2k-bmc-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/ls2k-bmc-core.c b/drivers/mfd/ls2k-bmc-core.c
index a9a30611dde9e31cd86ff67b1d6e02bf67b34755..e12f2ca2fbef360ceda14ee6fc64f500e4944120 100644
--- a/drivers/mfd/ls2k-bmc-core.c
+++ b/drivers/mfd/ls2k-bmc-core.c
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <linux/stop_machine.h>
 #include <linux/vt_kern.h>
+#include <linux/console.h>
 
 /* LS2K BMC resources */
 #define LS2K_DISPLAY_RES_START		(SZ_16M + SZ_2M)
@@ -310,7 +311,9 @@ static void ls2k_bmc_events_fn(struct work_struct *work)
 
 	if (IS_ENABLED(CONFIG_VT)) {
 		/* Re-push the display due to previous PCI-E loss. */
-		set_console(vt_move_to_console(MAX_NR_CONSOLES - 1, 1));
+		console_lock();
+		update_screen(vc_cons[fg_console].d);
+		console_unlock();
 	}
 }
 

-- 
2.49.0



  parent reply	other threads:[~2026-08-04 19:14 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-04 19:14 [PATCH RFC v6 0/7] mfd: ls2kbmc: multiple fixes for this driver Miao Wang
2026-08-04 19:14 ` Miao Wang via B4 Relay
2026-08-04 19:14 ` [PATCH RFC v6 1/7] mfd: ls2kbmc: Make a copy when parsing mode string Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-04 19:14 ` [PATCH RFC v6 2/7] mfd: ls2kbmc: Sanity check for the connected pci port Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-04 19:14 ` Miao Wang [this message]
2026-08-04 19:14   ` [PATCH RFC v6 3/7] mfd: ls2kbmc: Redraw using exported functions Miao Wang via B4 Relay
2026-08-04 19:14 ` [PATCH RFC v6 4/7] mfd: ls2kbmc: Cancel the work queue on removal Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-04 19:14 ` [PATCH RFC v6 5/7] ipmi: ls2k: adjust dependency to its mfd driver Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-04 19:34   ` Corey Minyard
2026-08-04 19:14 ` [PATCH RFC v6 6/7] mfd: ls2kbmc: Able to be compiled as a module Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-04 19:14 ` [PATCH RFC v6 7/7] mfd: ls2kbmc: Capture the reset event of BMC through GPIO Miao Wang
2026-08-04 19:14   ` Miao Wang via B4 Relay
2026-08-10 10:14   ` Bartosz Golaszewski
2026-08-10 11:28     ` Miao Wang
2026-08-10 11:30       ` Bartosz Golaszewski

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