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 4.4 12/20] serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling
Date: Thu, 14 Feb 2019 21:15:03 -0500 [thread overview]
Message-ID: <20190215021511.179333-12-sashal@kernel.org> (raw)
In-Reply-To: <20190215021511.179333-1-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 01e2274b23f2..ceb0829384df 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1405,7 +1405,7 @@ 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: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-15 2:14 [PATCH AUTOSEL 4.4 01/20] drm/msm: Unblock writer if reader closes file Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 02/20] ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 03/20] ALSA: compress: prevent potential divide by zero bugs Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 04/20] thermal: int340x_thermal: Fix a NULL vs IS_ERR() check Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 05/20] usb: dwc3: gadget: Fix the uninitialized link_state when udc starts Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 06/20] usb: gadget: Potential NULL dereference on allocation error Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 07/20] ASoC: dapm: change snprintf to scnprintf for possible overflow Sasha Levin
2019-02-15 2:14 ` [PATCH AUTOSEL 4.4 08/20] ASoC: imx-audmux: " Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 09/20] ARC: fix __ffs return value to avoid build warnings Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 10/20] mac80211: fix miscounting of ttl-dropped frames Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 11/20] libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() Sasha Levin
2019-02-15 2:15 ` Sasha Levin [this message]
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 13/20] scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state() Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 14/20] net: altera_tse: fix connect_local_phy error path Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 15/20] sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 16/20] ax25: fix possible use-after-free Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 17/20] ibmveth: Do not process frames after calling napi_reschedule Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 18/20] mac80211: don't initiate TDLS connection if station is not associated to AP Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 19/20] cfg80211: extend range deviation for DMG Sasha Levin
2019-02-15 2:15 ` [PATCH AUTOSEL 4.4 20/20] KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1 Sasha Levin
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