Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755717Ab2HUJWI (ORCPT ); Tue, 21 Aug 2012 05:22:08 -0400 Received: from na3sys009aog131.obsmtp.com ([74.125.149.247]:33046 "EHLO na3sys009aog131.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755369Ab2HUJUZ (ORCPT ); Tue, 21 Aug 2012 05:20:25 -0400 From: Felipe Balbi To: alan@linux.intel.com Cc: Tony Lindgren , Kevin Hilman , Linux OMAP Mailing List , Linux ARM Kernel Mailing List , linux-serial@vger.kernel.org, Linux Kernel Mailing List , Santosh Shilimkar , Shubhrajyoti Datta , Felipe Balbi Subject: [RFC/PATCH 09/13] serial: omap: move THRE check to transmit_chars() Date: Tue, 21 Aug 2012 12:15:51 +0300 Message-Id: <1345540555-24359-10-git-send-email-balbi@ti.com> X-Mailer: git-send-email 1.7.12.rc3 In-Reply-To: <1345540555-24359-1-git-send-email-balbi@ti.com> References: <1345540555-24359-1-git-send-email-balbi@ti.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1600 Lines: 50 since all other IRQ types now do all necessary checks inside their handlers, transmit_chars() was the only one left expecting serial_omap_irq() to check THRE for it. We can move THRE check to transmit_chars() in order to make serial_omap_irq() more uniform. Signed-off-by: Felipe Balbi --- drivers/tty/serial/omap-serial.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 74a4f0a..6ea24c5 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -195,11 +195,14 @@ static void serial_omap_stop_rx(struct uart_port *port) pm_runtime_put_autosuspend(up->dev); } -static void transmit_chars(struct uart_omap_port *up) +static void transmit_chars(struct uart_omap_port *up, unsigned int lsr) { struct circ_buf *xmit = &up->port.state->xmit; int count; + if (!(lsr & UART_LSR_THRE)) + return; + if (up->port.x_char) { serial_out(up, UART_TX, up->port.x_char); up->port.icount.tx++; @@ -367,8 +370,7 @@ static inline irqreturn_t serial_omap_irq(int irq, void *dev_id) check_modem_status(up); break; case UART_IIR_THRI: - if (lsr & UART_LSR_THRE) - transmit_chars(up); + transmit_chars(up, lsr); break; case UART_IIR_RX_TIMEOUT: /* FALLTHROUGH */ -- 1.7.12.rc3 -- 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/