From: Bich HEMON <bich.hemon@st.com> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Maxime Coquelin <mcoquelin.stm32@gmail.com>, Alexandre TORGUE <alexandre.torgue@st.com>, "Jiri Slaby" <jslaby@suse.com>, "linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org> Cc: Bich HEMON <bich.hemon@st.com> Subject: [PATCH 12/20] serial: stm32: fix last_res value Date: Mon, 26 Jun 2017 12:49:13 +0000 [thread overview] Message-ID: <1498481318-1894-13-git-send-email-bich.hemon@st.com> (raw) In-Reply-To: <1498481318-1894-1-git-send-email-bich.hemon@st.com> From: Bich Hemon <bich.hemon@st.com> Set last_res value in each port Signed-off-by: Bich Hemon <bich.hemon@st.com> --- 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, &sr, &last_res, threaded)) { + while (stm32_pending_rx(port, &sr, &stm32_port->last_res, threaded)) { sr |= USART_SR_DUMMY_RX; - c = stm32_get_char(port, &sr, &last_res); + c = stm32_get_char(port, &sr, &stm32_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 &stm32_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
WARNING: multiple messages have this Message-ID (diff)
From: bich.hemon@st.com (Bich HEMON) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 12/20] serial: stm32: fix last_res value Date: Mon, 26 Jun 2017 12:49:13 +0000 [thread overview] Message-ID: <1498481318-1894-13-git-send-email-bich.hemon@st.com> (raw) In-Reply-To: <1498481318-1894-1-git-send-email-bich.hemon@st.com> From: Bich Hemon <bich.hemon@st.com> Set last_res value in each port Signed-off-by: Bich Hemon <bich.hemon@st.com> --- 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, &sr, &last_res, threaded)) { + while (stm32_pending_rx(port, &sr, &stm32_port->last_res, threaded)) { sr |= USART_SR_DUMMY_RX; - c = stm32_get_char(port, &sr, &last_res); + c = stm32_get_char(port, &sr, &stm32_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 &stm32_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
next prev parent reply other threads:[~2017-06-26 12:53 UTC|newest] Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-06-26 12:49 [PATCH 00/20] Update STM32 usart driver Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-28 18:06 ` Rob Herring 2017-06-28 18:06 ` Rob Herring 2017-06-28 18:06 ` Rob Herring 2017-06-26 12:49 ` [PATCH 01/20] serial: stm32: adding fifo support Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 03/20] serial: stm32: fix multi ports management Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 04/20] serial: stm32: make fifoen as property for each port Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 05/20] serial: stm32: add debugfs Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 06/20] serial: stm32: fix pio transmit timeout Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 07/20] serial: stm32: less messages on dma alloc error Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 08/20] serial: stm32: timeout interrupt using with dma Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 10/20] serial: stm32: fix dma receive Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 09/20] serial: stm32: fix end of transfer Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 11/20] serial: stm32: add RTS support Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON [this message] 2017-06-26 12:49 ` [PATCH 12/20] serial: stm32: fix last_res value Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 13/20] serial: stm32: fix error handling in probe Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-26 12:49 ` [PATCH 14/20] dt-bindings: serial: document option wake-up interrupt for STM32 USART Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-28 18:10 ` Rob Herring 2017-06-28 18:10 ` Rob Herring 2017-06-28 18:10 ` Rob Herring 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-26 12:49 ` [PATCH 15/20] serial: stm32: Add wakeup mechanism Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 18/20] serial: stm32: update dma buffers length Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 16/20] serial: stm32: fix fifo usage Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 17/20] dt-bindings: serial: stm32: add dma using note Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-28 22:26 ` Rob Herring 2017-06-28 22:26 ` Rob Herring 2017-06-28 22:26 ` Rob Herring 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-29 14:50 ` Greg Kroah-Hartman 2017-06-26 12:49 ` [PATCH 20/20] serial: stm32: fix rx interrupt handling in startup Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` [PATCH 19/20] serial: stm32: add dma rx callback Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-26 12:49 ` Bich HEMON 2017-06-29 15:09 ` [PATCH 00/20] Update STM32 usart driver Alexandre Torgue 2017-06-29 15:09 ` Alexandre Torgue 2017-06-29 15:09 ` Alexandre Torgue
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