| From | Hugo Villeneuve <> | Date | Thu, 25 May 2023 00:03:16 -0400 | Subject | [PATCH v3 03/11] serial: sc16is7xx: mark IOCONTROL register as volatile |
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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.
Fixes: dfeae619d781 ("serial: sc16is7xx") 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 00054bb49780..a7c4da3cfd2b 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
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