openwrt/target/linux/bcm27xx/patches-6.1/950-0791-serial-sc16is7xx-Read-modem-line-state-at-startup.patch
John Audia 2c363a070e kernel: bump 6.1 to 6.1.75
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.75

Removed upstreamed:
	generic/hack-6.1/321-powerpc_crtsavres_prereq.patch[1]
	generic/pending-6.1/540-ksmbd-only-v2-leases-handle-the-directory.patch[2]

Rebased:
	bcm27xx/patches-6.1/950-0670-fbdev-Don-t-cancel-deferred-work-if-pagelist-empty.patch[3]

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.75&id=16b88e68b85d5520c28498bb847358ff6300cb90
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/fs/smb?h=v6.1.75&id=c866866c795296d3637ab0d48a3d8a3ef5d6f4a3
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.75&id=81f444f22816a82ada2cc787a2845cffc8c584a6

Build system: x86/64
Build-tested: x86/64/AMD Cezanne
Run-tested: x86/64/AMD Cezanne

Signed-off-by: John Audia <therealgraysky@proton.me>
2024-02-01 21:34:05 +01:00

29 lines
990 B
Diff

From 52039b6ffb6e78c2f77319b167dceab9aa51d13f Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Tue, 13 Jun 2023 16:12:54 +0100
Subject: [PATCH] serial: sc16is7xx: Read modem line state at startup
This patch sets the driver modem line state to the actual line state
at driver startup.
See: https://github.com/raspberrypi/linux/issues/5501
Signed-off-by: Earl Schmidt <schmidt.earl.f@gmail.com>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/tty/serial/sc16is7xx.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1222,6 +1222,9 @@ static int sc16is7xx_startup(struct uart
SC16IS7XX_IER_MSI_BIT;
sc16is7xx_port_write(port, SC16IS7XX_IER_REG, val);
+ /* Initialize the Modem Control signals to current status */
+ one->old_mctrl = sc16is7xx_get_hwmctrl(port);
+
/* Enable modem status polling */
spin_lock_irqsave(&port->lock, flags);
sc16is7xx_enable_ms(port);