From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: [PATCH 12/79] serial:bfin_uart: Put TX IRQ in individual platform resource. Date: Wed, 26 Oct 2011 14:12:17 +0200 Message-ID: <1319631204-23262-12-git-send-email-gregkh@suse.de> References: <20111026114236.GA22180@kroah.com> <1319631204-23262-1-git-send-email-gregkh@suse.de> Return-path: Received: from cantor2.suse.de ([195.135.220.15]:60936 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932848Ab1JZMNd (ORCPT ); Wed, 26 Oct 2011 08:13:33 -0400 In-Reply-To: <1319631204-23262-1-git-send-email-gregkh@suse.de> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: linux-serial@vger.kernel.org Cc: Sonic Zhang , Greg Kroah-Hartman From: Sonic Zhang Serial TX IRQ is not RX IRQ plus 1 in some blackfin chips. Give individual platform resources to both TX and RX irqs. Signed-off-by: Sonic Zhang Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/bfin_uart.c | 36 ++++++++++++++++++++++-------------- 1 files changed, 22 insertions(+), 14 deletions(-) diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c index e08bc04..c7e592d 100644 --- a/drivers/tty/serial/bfin_uart.c +++ b/drivers/tty/serial/bfin_uart.c @@ -667,17 +667,17 @@ static int bfin_serial_startup(struct uart_port *port) kgdboc_break_enabled = 0; else { # endif - if (request_irq(uart->port.irq, bfin_serial_rx_int, IRQF_DISABLED, + if (request_irq(uart->rx_irq, bfin_serial_rx_int, IRQF_DISABLED, "BFIN_UART_RX", uart)) { printk(KERN_NOTICE "Unable to attach BlackFin UART RX interrupt\n"); return -EBUSY; } if (request_irq - (uart->port.irq+1, bfin_serial_tx_int, IRQF_DISABLED, + (uart->tx_irq, bfin_serial_tx_int, IRQF_DISABLED, "BFIN_UART_TX", uart)) { printk(KERN_NOTICE "Unable to attach BlackFin UART TX interrupt\n"); - free_irq(uart->port.irq, uart); + free_irq(uart->rx_irq, uart); return -EBUSY; } @@ -692,7 +692,7 @@ static int bfin_serial_startup(struct uart_port *port) */ unsigned uart_dma_ch_rx, uart_dma_ch_tx; - switch (uart->port.irq) { + switch (uart->rx_irq) { case IRQ_UART3_RX: uart_dma_ch_rx = CH_UART3_RX; uart_dma_ch_tx = CH_UART3_TX; @@ -709,16 +709,16 @@ static int bfin_serial_startup(struct uart_port *port) if (uart_dma_ch_rx && request_dma(uart_dma_ch_rx, "BFIN_UART_RX") < 0) { printk(KERN_NOTICE"Fail to attach UART interrupt\n"); - free_irq(uart->port.irq, uart); - free_irq(uart->port.irq + 1, uart); + free_irq(uart->rx_irq, uart); + free_irq(uart->tx_irq, uart); return -EBUSY; } if (uart_dma_ch_tx && request_dma(uart_dma_ch_tx, "BFIN_UART_TX") < 0) { printk(KERN_NOTICE "Fail to attach UART interrupt\n"); free_dma(uart_dma_ch_rx); - free_irq(uart->port.irq, uart); - free_irq(uart->port.irq + 1, uart); + free_irq(uart->rx_irq, uart); + free_irq(uart->tx_irq, uart); return -EBUSY; } } @@ -785,8 +785,8 @@ static void bfin_serial_shutdown(struct uart_port *port) break; }; #endif - free_irq(uart->port.irq, uart); - free_irq(uart->port.irq+1, uart); + free_irq(uart->rx_irq, uart); + free_irq(uart->tx_irq, uart); #endif #ifdef CONFIG_SERIAL_BFIN_CTSRTS @@ -1319,14 +1319,22 @@ static int bfin_serial_probe(struct platform_device *pdev) } uart->port.mapbase = res->start; - uart->port.irq = platform_get_irq(pdev, 0); - if (uart->port.irq < 0) { - dev_err(&pdev->dev, "No uart RX/TX IRQ specified\n"); + uart->tx_irq = platform_get_irq(pdev, 0); + if (uart->tx_irq < 0) { + dev_err(&pdev->dev, "No uart TX IRQ specified\n"); ret = -ENOENT; goto out_error_unmap; } - uart->status_irq = platform_get_irq(pdev, 1); + uart->rx_irq = platform_get_irq(pdev, 1); + if (uart->rx_irq < 0) { + dev_err(&pdev->dev, "No uart RX IRQ specified\n"); + ret = -ENOENT; + goto out_error_unmap; + } + uart->port.irq = uart->rx_irq; + + uart->status_irq = platform_get_irq(pdev, 2); if (uart->status_irq < 0) { dev_err(&pdev->dev, "No uart status IRQ specified\n"); ret = -ENOENT; -- 1.7.7