From: Hugo Villeneuve <hugo@hugovil.com>
To: gregkh@linuxfoundation.org, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
jirislaby@kernel.org, jringle@gridpoint.com,
l.perczak@camlintechnologies.com, tomasz.mon@camlingroup.com
Cc: linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, hugo@hugovil.com,
linux-gpio@vger.kernel.org,
Hugo Villeneuve <hvilleneuve@dimonoff.com>
Subject: [PATCH v4 1/9] serial: sc16is7xx: mark IOCONTROL register as volatile
Date: Mon, 29 May 2023 10:07:03 -0400 [thread overview]
Message-ID: <20230529140711.896830-2-hugo@hugovil.com> (raw)
In-Reply-To: <20230529140711.896830-1-hugo@hugovil.com>
From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Bit SRESET (3) is cleared when a reset operation is completed. Having
the IOCONTROL register as non-volatile will always read SRESET as 1.
Therefore mark IOCONTROL register as a volatile register.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
---
drivers/tty/serial/sc16is7xx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index abad091baeea..fbaadec557d8 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -488,6 +488,7 @@ static bool sc16is7xx_regmap_volatile(struct device *dev, unsigned int reg)
case SC16IS7XX_TXLVL_REG:
case SC16IS7XX_RXLVL_REG:
case SC16IS7XX_IOSTATE_REG:
+ case SC16IS7XX_IOCONTROL_REG:
return true;
default:
break;
--
2.30.2
next prev parent reply other threads:[~2023-05-29 14:07 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-29 14:07 [PATCH v4 0/9] serial: sc16is7xx: fix GPIO regression and rs485 improvements Hugo Villeneuve
2023-05-29 14:07 ` Hugo Villeneuve [this message]
2023-05-29 14:07 ` [PATCH v4 2/9] serial: sc16is7xx: add post reset delay Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 3/9] serial: sc16is7xx: fix broken port 0 uart init Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 4/9] serial: sc16is7xx: fix bug when first setting GPIO direction Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 5/9] serial: sc16is7xx: refactor GPIO controller registration Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 6/9] dt-bindings: sc16is7xx: Add property to change GPIO function Hugo Villeneuve
2023-05-29 14:16 ` Conor Dooley
2023-05-29 14:26 ` Hugo Villeneuve
2023-05-29 18:09 ` Conor Dooley
2023-05-29 18:19 ` Conor Dooley
2023-05-29 18:33 ` Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 7/9] serial: sc16is7xx: fix regression with GPIO configuration Hugo Villeneuve
2023-05-29 16:10 ` Ilpo Järvinen
2023-05-29 22:38 ` andy.shevchenko
2023-05-30 15:36 ` Hugo Villeneuve
2023-05-30 21:56 ` Andy Shevchenko
2023-05-31 13:57 ` Hugo Villeneuve
2023-05-31 23:57 ` Hugo Villeneuve
2023-06-01 9:24 ` Andy Shevchenko
2023-05-30 10:25 ` Greg KH
2023-05-30 16:25 ` Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 8/9] serial: sc16is7xx: add call to get rs485 DT flags and properties Hugo Villeneuve
2023-05-29 14:07 ` [PATCH v4 9/9] serial: sc16is7xx: improve comments about variants Hugo Villeneuve
2023-05-29 22:31 ` [PATCH v4 0/9] serial: sc16is7xx: fix GPIO regression and rs485 improvements andy.shevchenko
2023-05-30 2:07 ` Hugo Villeneuve
2023-05-30 11:15 ` andy.shevchenko
2023-05-30 15:41 ` Hugo Villeneuve
2023-05-29 22:40 ` andy.shevchenko
2023-05-30 9:30 ` Lech Perczak
2023-05-30 13:08 ` Hugo Villeneuve
2023-05-31 10:43 ` Lech Perczak
2023-05-31 13:56 ` Hugo Villeneuve
2023-05-31 15:00 ` Hugo Villeneuve
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