From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tomonori Sakita <tomonori.sakita@sord.co.jp>,
Atsushi Nemoto <atsushi.nemoto@sord.co.jp>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>,
linux-serial@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 15/27] serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
Date: Thu, 14 Feb 2019 21:14:12 -0500 [thread overview]
Message-ID: <20190215021424.178979-15-sashal@kernel.org> (raw)
In-Reply-To: <20190215021424.178979-1-sashal@kernel.org>
From: Tomonori Sakita <tomonori.sakita@sord.co.jp>
[ Upstream commit 815d835b7ba46685c316b000013367dacb2b461b ]
Using over-sampling ratio, lpuart can accept baud rate upto uartclk / 4.
Signed-off-by: Tomonori Sakita <tomonori.sakita@sord.co.jp>
Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/fsl_lpuart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index e2ec04904f54..0cf4fe6cb4d1 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1490,7 +1490,7 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
}
/* ask the core to calculate the divisor */
- baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 16);
+ baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 4);
spin_lock_irqsave(&sport->port.lock, flags);
--
2.19.1
next prev parent reply other threads:[~2019-02-15 2:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-15 2:13 [PATCH AUTOSEL 4.9 01/27] drm/msm: Unblock writer if reader closes file Sasha Levin
2019-02-15 2:13 ` [PATCH AUTOSEL 4.9 02/27] ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 03/27] ALSA: compress: prevent potential divide by zero bugs Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 04/27] thermal: int340x_thermal: Fix a NULL vs IS_ERR() check Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 05/27] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 06/27] usb: dwc3: gadget: Fix the uninitialized link_state when udc starts Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 07/27] usb: gadget: Potential NULL dereference on allocation error Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 08/27] ASoC: dapm: change snprintf to scnprintf for possible overflow Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 09/27] ASoC: imx-audmux: " Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 10/27] ARC: fix __ffs return value to avoid build warnings Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 11/27] drivers: thermal: int340x_thermal: Fix sysfs race condition Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 12/27] mac80211: fix miscounting of ttl-dropped frames Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 13/27] locking/rwsem: Fix (possible) missed wakeup Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 14/27] libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() Sasha Levin
2019-02-15 2:14 ` Sasha Levin [this message]
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 16/27] direct-io: allow direct writes to empty inodes Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 17/27] scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state() Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 18/27] net: altera_tse: fix connect_local_phy error path Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 19/27] sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 20/27] ax25: fix possible use-after-free Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 21/27] net: usb: asix: ax88772_bind return error when hw_reset fail Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 22/27] ibmveth: Do not process frames after calling napi_reschedule Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 23/27] mac80211: don't initiate TDLS connection if station is not associated to AP Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 24/27] mac80211: Add attribute aligned(2) to struct 'action' Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 25/27] cfg80211: extend range deviation for DMG Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 26/27] svm: Fix AVIC incomplete IPI emulation Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.9 27/27] KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1 Sasha Levin
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