From patchwork Thu Dec 29 15:50:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 637799 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5AEAC53210 for ; Thu, 29 Dec 2022 15:50:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233187AbiL2Puk (ORCPT ); Thu, 29 Dec 2022 10:50:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40278 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233497AbiL2Pui (ORCPT ); Thu, 29 Dec 2022 10:50:38 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7630D13F97 for ; Thu, 29 Dec 2022 07:50:37 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id bg13-20020a05600c3c8d00b003d9712b29d2so10974416wmb.2 for ; Thu, 29 Dec 2022 07:50:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=l16P3Tz2y+nugpkt7mRQCRUw70VUrSOE7TcjuQJSFbU=; b=NQvEW5kBBBA5F9hm0a4wpWiGJoW/JaGcLszVI+f3sgRIHfdTlkRR4NirlyL/VuYQ4r 3TwLxLAd8zfJJmUYNkCybr2eht0dLGdviZ5tUmJ6Y9MDy+U5m/0e9Fzp5lg1sO7eZjkq VHSNB4wiwpkd+bC83jGDzzQsHwoQn/kqQSTVGAq5jaO7yX7eOBcvNsyDtFoa7ArFUdg5 Bcw4jO33phTGIOHszk/Bj+8kUVzE280fS6Las+pHIrwGOLG7/xXmwa94Nesvsqh8q6uE RdEpGBWIknQOPx0ZPQeIbX7fS5BaQofYelWGZF7if5dRiuRx5pwr9C3bd7dTpKa9Y/Iy 5k7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=l16P3Tz2y+nugpkt7mRQCRUw70VUrSOE7TcjuQJSFbU=; b=VHZHJDccPXR3gZYwuMnfOxJbtQg/5jdDfjZfEdwYK00ENvW4YldO4iDcmqUv1uLtO8 smqxtCf3ROeF11WsIXrDuIofi0qYuEbDJCxco/jhVMX1g2X7RsVEzQZMy6k8gkmu+nV7 Iovlaxbt7XgaIoSaCMOicNwhCzweDUqPWdrvmI2m57sMvAIPQLfXeRRpD17XqIcQi0n0 BCBBKC8cEloqGT4Fsrcenb4NQqHjyYKQWje7YRu5M0bnZtpImjPS7ryfKOgiBD+7dCvV qWlb52aoZWl/lQ0b0XN5QixiabrR7ngnB4ndO+5CLfRcLNxUlBbbEyZFLO5sVLPyH54F 9SmQ== X-Gm-Message-State: AFqh2krjyVpmCmQVloLRU3TBQXIqlcDijHqgADlGlaKQG9uwcjprIA9J 2c7aVFONHP67Z2MI9YUWOpClyA== X-Google-Smtp-Source: AMrXdXv49hd8c4QJSOvJlzqfJl3/lA/m89biejJYnkqhYdy+1YkfHjxbMWkkYJaHQ6TxAwIHcZGdaQ== X-Received: by 2002:a05:600c:254:b0:3d2:2c86:d2b2 with SMTP id 20-20020a05600c025400b003d22c86d2b2mr26204124wmj.24.1672329036024; Thu, 29 Dec 2022 07:50:36 -0800 (PST) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:8f7a:98d8:9d8d:ced8]) by smtp.gmail.com with ESMTPSA id bh12-20020a05600c3d0c00b003cfa81e2eb4sm25251647wmb.38.2022.12.29.07.50.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Dec 2022 07:50:35 -0800 (PST) From: Bartosz Golaszewski To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Greg Kroah-Hartman , Jiri Slaby , Srinivas Kandagatla , Vinod Koul , Alex Elder , =?utf-8?q?Ilp?= =?utf-8?q?o_J=C3=A4rvinen?= , Krzysztof Kozlowski Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, Bartosz Golaszewski , Konrad Dybcio Subject: [PATCH v6 02/14] tty: serial: qcom-geni-serial: drop unneeded forward definitions Date: Thu, 29 Dec 2022 16:50:18 +0100 Message-Id: <20221229155030.418800-3-brgl@bgdev.pl> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221229155030.418800-1-brgl@bgdev.pl> References: <20221229155030.418800-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org From: Bartosz Golaszewski If we shuffle the code a bit, we can drop all forward definitions of various static functions. Signed-off-by: Bartosz Golaszewski Reviewed-by: Konrad Dybcio --- drivers/tty/serial/qcom_geni_serial.c | 79 +++++++++++++-------------- 1 file changed, 37 insertions(+), 42 deletions(-) diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 4f4c12f3c433..31e0faf702a3 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -147,11 +147,6 @@ static const struct uart_ops qcom_geni_console_pops; static const struct uart_ops qcom_geni_uart_pops; static struct uart_driver qcom_geni_console_driver; static struct uart_driver qcom_geni_uart_driver; -static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop); -static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop); -static unsigned int qcom_geni_serial_tx_empty(struct uart_port *port); -static void qcom_geni_serial_stop_rx(struct uart_port *uport); -static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop); #define to_dev_port(ptr, member) \ container_of(ptr, struct qcom_geni_serial_port, member) @@ -590,6 +585,11 @@ static int handle_rx_uart(struct uart_port *uport, u32 bytes, bool drop) return ret; } +static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport) +{ + return !readl(uport->membase + SE_GENI_TX_FIFO_STATUS); +} + static void qcom_geni_serial_start_tx(struct uart_port *uport) { u32 irq_en; @@ -635,25 +635,29 @@ static void qcom_geni_serial_stop_tx(struct uart_port *uport) writel(M_CMD_CANCEL_EN, uport->membase + SE_GENI_M_IRQ_CLEAR); } -static void qcom_geni_serial_start_rx(struct uart_port *uport) +static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop) { - u32 irq_en; u32 status; + u32 word_cnt; + u32 last_word_byte_cnt; + u32 last_word_partial; + u32 total_bytes; struct qcom_geni_serial_port *port = to_dev_port(uport, uport); - status = readl(uport->membase + SE_GENI_STATUS); - if (status & S_GENI_CMD_ACTIVE) - qcom_geni_serial_stop_rx(uport); - - geni_se_setup_s_cmd(&port->se, UART_START_READ, 0); - - irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN); - irq_en |= S_RX_FIFO_WATERMARK_EN | S_RX_FIFO_LAST_EN; - writel(irq_en, uport->membase + SE_GENI_S_IRQ_EN); + status = readl(uport->membase + SE_GENI_RX_FIFO_STATUS); + word_cnt = status & RX_FIFO_WC_MSK; + last_word_partial = status & RX_LAST; + last_word_byte_cnt = (status & RX_LAST_BYTE_VALID_MSK) >> + RX_LAST_BYTE_VALID_SHFT; - irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN); - irq_en |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN; - writel(irq_en, uport->membase + SE_GENI_M_IRQ_EN); + if (!word_cnt) + return; + total_bytes = BYTES_PER_FIFO_WORD * (word_cnt - 1); + if (last_word_partial && last_word_byte_cnt) + total_bytes += last_word_byte_cnt; + else + total_bytes += BYTES_PER_FIFO_WORD; + port->handle_rx(uport, total_bytes, drop); } static void qcom_geni_serial_stop_rx(struct uart_port *uport) @@ -694,29 +698,25 @@ static void qcom_geni_serial_stop_rx(struct uart_port *uport) qcom_geni_serial_abort_rx(uport); } -static void qcom_geni_serial_handle_rx(struct uart_port *uport, bool drop) +static void qcom_geni_serial_start_rx(struct uart_port *uport) { + u32 irq_en; u32 status; - u32 word_cnt; - u32 last_word_byte_cnt; - u32 last_word_partial; - u32 total_bytes; struct qcom_geni_serial_port *port = to_dev_port(uport, uport); - status = readl(uport->membase + SE_GENI_RX_FIFO_STATUS); - word_cnt = status & RX_FIFO_WC_MSK; - last_word_partial = status & RX_LAST; - last_word_byte_cnt = (status & RX_LAST_BYTE_VALID_MSK) >> - RX_LAST_BYTE_VALID_SHFT; + status = readl(uport->membase + SE_GENI_STATUS); + if (status & S_GENI_CMD_ACTIVE) + qcom_geni_serial_stop_rx(uport); - if (!word_cnt) - return; - total_bytes = BYTES_PER_FIFO_WORD * (word_cnt - 1); - if (last_word_partial && last_word_byte_cnt) - total_bytes += last_word_byte_cnt; - else - total_bytes += BYTES_PER_FIFO_WORD; - port->handle_rx(uport, total_bytes, drop); + geni_se_setup_s_cmd(&port->se, UART_START_READ, 0); + + irq_en = readl(uport->membase + SE_GENI_S_IRQ_EN); + irq_en |= S_RX_FIFO_WATERMARK_EN | S_RX_FIFO_LAST_EN; + writel(irq_en, uport->membase + SE_GENI_S_IRQ_EN); + + irq_en = readl(uport->membase + SE_GENI_M_IRQ_EN); + irq_en |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN; + writel(irq_en, uport->membase + SE_GENI_M_IRQ_EN); } static void qcom_geni_serial_handle_tx(struct uart_port *uport, bool done, @@ -1125,11 +1125,6 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport, qcom_geni_serial_start_rx(uport); } -static unsigned int qcom_geni_serial_tx_empty(struct uart_port *uport) -{ - return !readl(uport->membase + SE_GENI_TX_FIFO_STATUS); -} - #ifdef CONFIG_SERIAL_QCOM_GENI_CONSOLE static int qcom_geni_console_setup(struct console *co, char *options) {