Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754666AbbKLOgo (ORCPT ); Thu, 12 Nov 2015 09:36:44 -0500 Received: from mail-lb0-f178.google.com ([209.85.217.178]:35008 "EHLO mail-lb0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752152AbbKLOf3 (ORCPT ); Thu, 12 Nov 2015 09:35:29 -0500 From: "Matwey V. Kornilov" To: gregkh@linuxfoundation.org, jslaby@suse.com, peter@hurleysoftware.com Cc: "Matwey V. Kornilov" , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: [PATCH v3 1/5] tty: Introduce UART_CAP_HW485 Date: Thu, 12 Nov 2015 17:33:52 +0300 Message-Id: <1447338836-8785-2-git-send-email-matwey@sai.msu.ru> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1447338836-8785-1-git-send-email-matwey@sai.msu.ru> References: <1447338836-8785-1-git-send-email-matwey@sai.msu.ru> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2768 Lines: 67 Introduce new capability UART_CAP_HW485 to mark 8250 UARTs which have hardware support of line direction control. Signed-off-by: Matwey V. Kornilov --- drivers/tty/serial/8250/8250.h | 1 + drivers/tty/serial/8250/8250_fintek.c | 1 + drivers/tty/serial/8250/8250_lpc18xx.c | 1 + drivers/tty/serial/8250/8250_pci.c | 1 + 4 files changed, 4 insertions(+) diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index d54dcd8..92a4f47 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -69,6 +69,7 @@ struct serial8250_config { unsigned int flags; }; +#define UART_CAP_HW485 (1 << 7) /* UART has hardware direction control for RS485 */ #define UART_CAP_FIFO (1 << 8) /* UART has FIFO */ #define UART_CAP_EFR (1 << 9) /* UART has EFR */ #define UART_CAP_SLEEP (1 << 10) /* UART has IER sleep */ diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c index 8947439..f2831a8 100644 --- a/drivers/tty/serial/8250/8250_fintek.c +++ b/drivers/tty/serial/8250/8250_fintek.c @@ -208,6 +208,7 @@ fintek_8250_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) uart.port.iobase = pnp_port_start(dev, 0); uart.port.iotype = UPIO_PORT; uart.port.rs485_config = fintek_8250_rs485_config; + uart.capabilities = UART_CAP_HW485; uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE) diff --git a/drivers/tty/serial/8250/8250_lpc18xx.c b/drivers/tty/serial/8250/8250_lpc18xx.c index 99cd478..9d30276 100644 --- a/drivers/tty/serial/8250/8250_lpc18xx.c +++ b/drivers/tty/serial/8250/8250_lpc18xx.c @@ -175,6 +175,7 @@ static int lpc18xx_serial_probe(struct platform_device *pdev) uart.port.private_data = data; uart.port.rs485_config = lpc18xx_rs485_config; uart.port.serial_out = lpc18xx_uart_serial_out; + uart.capabilities = UART_CAP_HW485; uart.dma = &data->dma; uart.dma->rxconf.src_maxburst = 1; diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 4097f3f..c7c0ae9 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1599,6 +1599,7 @@ static int pci_fintek_setup(struct serial_private *priv, port->port.iotype = UPIO_PORT; port->port.iobase = iobase; port->port.rs485_config = pci_fintek_rs485_config; + port->capabilities = UART_CAP_HW485; data = devm_kzalloc(&pdev->dev, sizeof(u8), GFP_KERNEL); if (!data) -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/