From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F56AC433FF for ; Wed, 31 Jul 2019 17:32:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57BE020679 for ; Wed, 31 Jul 2019 17:32:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="a1XRmqP1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726846AbfGaRch (ORCPT ); Wed, 31 Jul 2019 13:32:37 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:44174 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729110AbfGaRcZ (ORCPT ); Wed, 31 Jul 2019 13:32:25 -0400 Received: by mail-pg1-f193.google.com with SMTP id i18so32384870pgl.11; Wed, 31 Jul 2019 10:32:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=lP+gb0a7nXAkde0kTkIdwLRyN5Uij5gCsaOagxWeRf8=; b=a1XRmqP103eYkSMVwGRWnIy/45+s9a3RYL2IX+WIHXeGE3psrz/St/3Y0u0kGnsuBv kWcH9Q/mCWsiEFCENPtNXMv/Ncer8C9HeACP05bjRE174FxBVZpCcCOoSkPxQLkihq2D 4itxekCgbqo/tPZEQGkUUfbHMCld2DUDlNagjbo/QybbOIR0RMuBlzloWKs1dBE+mesC i5iSxycYmaQ3GXkCntFCQbk3uGtA63RV7N06Nk5pN0N+b/YhDy4PPXKUiNLWIpxGG3HD uRIROehT0+0dQOmiyqGG7/Fp5NS9mVxrJuCQxe7DHTR8ttyHf2OOX0IYfLQ8saqy35XQ 5Oig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=lP+gb0a7nXAkde0kTkIdwLRyN5Uij5gCsaOagxWeRf8=; b=ZzyQ236pMZnG/uEppD72X+3rCO8/2c2mI/URLQV5XwRWVsVquJnLDmR4sE1TBCK+h+ zfxXPqdE9SBWkz4ugKfOOs+3J23zgMYewLb3rpBQrG8dXe8P5hcg16Zn0aEyCc9CjKLt HCPnwlXCek9lwFR2TyxIVzM7VlVeYT+5XqQlWnkhvVkxWh7+PS8znVelEWa+iHo2wRZ1 B3+8oJKjaz0LmilAEDYNkzZYgKpDtMXyDfjg0aEG5i4a3dcJuki00B54xbRnrxVIoQoa Z7b3ZIfn54PMwczjfBrLy6GpdU5L/gpMi6u27+njFamQq1/MIuHQRReu9ljNSYqF/Xme zbqA== X-Gm-Message-State: APjAAAV898HdG6dYBBsCiwd4Rfh91OwnDfEzbuNiIlSGuwkdcDdqQ428 Ne31SnTmerO71L9dYzdmmu07TUCOrec= X-Google-Smtp-Source: APXvYqwddI2afXrM8alwQb7OlWZg6irEgRgnn7CUaubxvSyLNnvrA35PEo2toD16kQRvykdyRVVKaA== X-Received: by 2002:a63:c50f:: with SMTP id f15mr15220177pgd.372.1564594343651; Wed, 31 Jul 2019 10:32:23 -0700 (PDT) Received: from localhost.localdomain ([2607:fb90:4ad:5a0b:2aff:6e0f:8973:5a26]) by smtp.gmail.com with ESMTPSA id bo20sm2089617pjb.23.2019.07.31.10.31.56 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 31 Jul 2019 10:32:23 -0700 (PDT) From: Andrey Smirnov To: linux-serial@vger.kernel.org Cc: Andrey Smirnov , Stefan Agner , Chris Healy , Cory Tusar , Lucas Stach , Greg Kroah-Hartman , Jiri Slaby , linux-imx@nxp.com, linux-kernel@vger.kernel.org Subject: [PATCH v2 21/23] tty: serial: fsl_lpuart: Introduce lpuart*_setup_watermark_enable() Date: Wed, 31 Jul 2019 10:30:43 -0700 Message-Id: <20190731173045.11718-22-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190731173045.11718-1-andrew.smirnov@gmail.com> References: <20190731173045.11718-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Most users of lpuart*_setup_watermark() enable identical set of flags right after the call, so combine those two action into a subroutine and make use of it. Signed-off-by: Andrey Smirnov Cc: Stefan Agner Cc: Chris Healy Cc: Cory Tusar Cc: Lucas Stach Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: linux-imx@nxp.com Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/tty/serial/fsl_lpuart.c | 50 ++++++++++++++++++--------------- 1 file changed, 28 insertions(+), 22 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 5a6516f4bc93..8ab5f9939597 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1403,6 +1403,17 @@ static void lpuart_setup_watermark(struct lpuart_port *sport) writeb(cr2_saved, sport->port.membase + UARTCR2); } +static void lpuart_setup_watermark_enable(struct lpuart_port *sport) +{ + unsigned char cr2; + + lpuart_setup_watermark(sport); + + cr2 = readb(sport->port.membase + UARTCR2); + cr2 |= UARTCR2_RIE | UARTCR2_TIE | UARTCR2_RE | UARTCR2_TE; + writeb(cr2, sport->port.membase + UARTCR2); +} + static void lpuart32_setup_watermark(struct lpuart_port *sport) { unsigned long val, ctrl; @@ -1428,6 +1439,17 @@ static void lpuart32_setup_watermark(struct lpuart_port *sport) lpuart32_write(&sport->port, ctrl_saved, UARTCTRL); } +static void lpuart32_setup_watermark_enable(struct lpuart_port *sport) +{ + u32 temp; + + lpuart32_setup_watermark(sport); + + temp = lpuart32_read(&sport->port, UARTCTRL); + temp |= UARTCTRL_RE | UARTCTRL_TE | UARTCTRL_ILIE; + lpuart32_write(&sport->port, temp, UARTCTRL); +} + static void rx_dma_timer_init(struct lpuart_port *sport) { timer_setup(&sport->lpuart_timer, lpuart_timer_func, 0); @@ -1488,11 +1510,7 @@ static int lpuart_startup(struct uart_port *port) spin_lock_irqsave(&sport->port.lock, flags); - lpuart_setup_watermark(sport); - - temp = readb(sport->port.membase + UARTCR2); - temp |= UARTCR2_RIE | UARTCR2_TIE | UARTCR2_RE | UARTCR2_TE; - writeb(temp, sport->port.membase + UARTCR2); + lpuart_setup_watermark_enable(sport); lpuart_rx_dma_startup(sport); lpuart_tx_dma_startup(sport); @@ -1538,11 +1556,7 @@ static int lpuart32_startup(struct uart_port *port) spin_lock_irqsave(&sport->port.lock, flags); - lpuart32_setup_watermark(sport); - - temp = lpuart32_read(&sport->port, UARTCTRL); - temp |= UARTCTRL_RE | UARTCTRL_TE | UARTCTRL_ILIE; - lpuart32_write(&sport->port, temp, UARTCTRL); + lpuart32_setup_watermark_enable(sport); lpuart_rx_dma_startup(sport); @@ -2560,22 +2574,14 @@ static int lpuart_resume(struct device *dev) { struct lpuart_port *sport = dev_get_drvdata(dev); bool irq_wake = irqd_is_wakeup_set(irq_get_irq_data(sport->port.irq)); - unsigned long temp; if (sport->port.suspended && !irq_wake) lpuart_enable_clks(sport); - if (lpuart_is_32(sport)) { - lpuart32_setup_watermark(sport); - temp = lpuart32_read(&sport->port, UARTCTRL); - temp |= UARTCTRL_RE | UARTCTRL_TE | UARTCTRL_ILIE; - lpuart32_write(&sport->port, temp, UARTCTRL); - } else { - lpuart_setup_watermark(sport); - temp = readb(sport->port.membase + UARTCR2); - temp |= UARTCR2_RIE | UARTCR2_TIE | UARTCR2_RE | UARTCR2_TE; - writeb(temp, sport->port.membase + UARTCR2); - } + if (lpuart_is_32(sport)) + lpuart32_setup_watermark_enable(sport); + else + lpuart_setup_watermark_enable(sport); if (sport->lpuart_dma_rx_use) { if (irq_wake) { -- 2.21.0