[PATCH 12/20] serial: stm32: fix last_res value

[Bich HEMON]

From: Bich Hemon 

Set last_res value in each port

Signed-off-by: Bich Hemon 
---
 drivers/tty/serial/stm32-usart.c | 6 +++---
 drivers/tty/serial/stm32-usart.h | 1 +
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index a7401b0..c54b89d 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -155,14 +155,13 @@ static void stm32_receive_chars(struct uart_port *port, 
bool threaded)
unsigned long c;
u32 sr;
char flag;
-   static int last_res = RX_BUF_L;
 
if (port->irq_wake)
pm_wakeup_event(tport->tty->dev, 0);
 
-   while (stm32_pending_rx(port, , _res, threaded)) {
+   while (stm32_pending_rx(port, , _port->last_res, threaded)) {
sr |= USART_SR_DUMMY_RX;
-   c = stm32_get_char(port, , _res);
+   c = stm32_get_char(port, , _port->last_res);
flag = TTY_NORMAL;
port->icount.rx++;
 
@@ -808,6 +807,7 @@ static struct stm32_port *stm32_of_get_stm32_port(struct 
platform_device *pdev)
stm32_ports[id].port.line = id;
stm32_ports[id].fifoen = true;
stm32_ports[id].rx_irq = USART_CR1_RXNEIE;
+   stm32_ports[id].last_res = RX_BUF_L;
return _ports[id];
 }
 
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index f9fe15b..056a837 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -226,6 +226,7 @@ struct stm32_port {
dma_addr_t tx_dma_buf;   /* dma tx buffer bus address */
unsigned char *tx_buf;   /* dma tx buffer cpu address */
u32 rx_irq;  /* USART_CR1_RXNEIE or RTOIE */
+   int last_res;
bool tx_dma_busy;/* dma tx busy   */
bool hw_flow_control;
bool fifoen;
-- 
1.9.1

[PATCH 12/20] serial: stm32: fix last_res value

[Bich HEMON]

From: Bich Hemon 

Set last_res value in each port

Signed-off-by: Bich Hemon 
---
 drivers/tty/serial/stm32-usart.c | 6 +++---
 drivers/tty/serial/stm32-usart.h | 1 +
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index a7401b0..c54b89d 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -155,14 +155,13 @@ static void stm32_receive_chars(struct uart_port *port, 
bool threaded)
unsigned long c;
u32 sr;
char flag;
-   static int last_res = RX_BUF_L;
 
if (port->irq_wake)
pm_wakeup_event(tport->tty->dev, 0);
 
-   while (stm32_pending_rx(port, , _res, threaded)) {
+   while (stm32_pending_rx(port, , _port->last_res, threaded)) {
sr |= USART_SR_DUMMY_RX;
-   c = stm32_get_char(port, , _res);
+   c = stm32_get_char(port, , _port->last_res);
flag = TTY_NORMAL;
port->icount.rx++;
 
@@ -808,6 +807,7 @@ static struct stm32_port *stm32_of_get_stm32_port(struct 
platform_device *pdev)
stm32_ports[id].port.line = id;
stm32_ports[id].fifoen = true;
stm32_ports[id].rx_irq = USART_CR1_RXNEIE;
+   stm32_ports[id].last_res = RX_BUF_L;
return _ports[id];
 }
 
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index f9fe15b..056a837 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -226,6 +226,7 @@ struct stm32_port {
dma_addr_t tx_dma_buf;   /* dma tx buffer bus address */
unsigned char *tx_buf;   /* dma tx buffer cpu address */
u32 rx_irq;  /* USART_CR1_RXNEIE or RTOIE */
+   int last_res;
bool tx_dma_busy;/* dma tx busy   */
bool hw_flow_control;
bool fifoen;
-- 
1.9.1