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drivers/serial: Fix offset calculation in 16550

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Signed-off-by: Huang Qi <no1wudi@qq.com>
This commit is contained in:
Huang Qi 2021-12-05 17:51:54 +08:00 • committed by Xiang Xiao
parent e71b66c792
commit a24005b70b
1 changed files with 2 additions and 2 deletions
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4
drivers/serial/uart_16550.c
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@ -513,7 +513,7 @@ static inline uart_datawidth_t u16550_serialin(FAR struct u16550_s *priv,
int offset)
{
#ifdef CONFIG_SERIAL_UART_ARCH_MMIO
return *((FAR volatile uart_addrwidth_t *)priv->uartbase + offset);
return *((FAR volatile uart_datawidth_t *)priv->uartbase + offset);
#else
return uart_getreg(priv->uartbase, offset);
#endif
@ -527,7 +527,7 @@ static inline void u16550_serialout(FAR struct u16550_s *priv, int offset,
uart_datawidth_t value)
{
#ifdef CONFIG_SERIAL_UART_ARCH_MMIO
*((FAR volatile uart_addrwidth_t *)priv->uartbase + offset) = value;
*((FAR volatile uart_datawidth_t *)priv->uartbase + offset) = value;
#else
uart_putreg(priv->uartbase, offset, value);
#endif