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Wed, 08 Apr 2020 23:26:38 -0700 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1jMQeV-0004bN-4n; Wed, 08 Apr 2020 23:27:03 -0700 Received: from xsj-pvapsmtp01 (mailman.xilinx.com [149.199.38.66]) by xsj-smtp-dlp2.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id 0396QqC8027519; Wed, 8 Apr 2020 23:26:52 -0700 Received: from [10.140.6.6] (helo=xhdappanad40.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1jMQeK-00046h-91; Wed, 08 Apr 2020 23:26:52 -0700 From: Raviteja Narayanam To: linux-serial@vger.kernel.org Subject: [PATCH v2 2/2] serial: uartps: Use cdns_uart_tx_empty in console_write Date: Thu, 9 Apr 2020 11:56:03 +0530 Message-Id: <1586413563-29125-3-git-send-email-raviteja.narayanam@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1586413563-29125-1-git-send-email-raviteja.narayanam@xilinx.com> References: <1586413563-29125-1-git-send-email-raviteja.narayanam@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; 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X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.69.72 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.69.72 listed in wl.mailspike.net] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Raviteja Narayanam , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, michal.simek@xilinx.com, git@xilinx.com, jslaby@suse.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Instead of accessing the registers and checking for tx_empty, use cdns_uart_tx_empty in cdns_uart_console_write function. Signed-off-by: Raviteja Narayanam --- drivers/tty/serial/xilinx_uartps.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 0bf946b..042aa6f 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -1233,9 +1233,7 @@ static void cdns_uart_console_write(struct console *co, const char *s, writel(ctrl, port->membase + CDNS_UART_CR); uart_console_write(port, s, count, cdns_uart_console_putchar); - while ((readl(port->membase + CDNS_UART_SR) & - (CDNS_UART_SR_TXEMPTY | CDNS_UART_SR_TACTIVE)) != - CDNS_UART_SR_TXEMPTY) + while (cdns_uart_tx_empty(port) != TIOCSER_TEMT) cpu_relax(); /* restore interrupt state */