From patchwork Tue Nov 29 11:00:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 13058464 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 6E67EC4167B for ; Tue, 29 Nov 2022 11:00:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232401AbiK2LAW (ORCPT ); Tue, 29 Nov 2022 06:00:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232411AbiK2LAV (ORCPT ); Tue, 29 Nov 2022 06:00:21 -0500 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 094E360E91 for ; Tue, 29 Nov 2022 03:00:20 -0800 (PST) Received: by mail-wm1-x331.google.com with SMTP id ja4-20020a05600c556400b003cf6e77f89cso789212wmb.0 for ; Tue, 29 Nov 2022 03:00:19 -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=x1c6aXOWkMzrvJWb4ybDXSFS8VHGCMiU8NIu3wtX2eo=; b=LE4lImcCvgy8Mnv5sG8chr9lZy8IL6afckFLBepGWaFzTyhQJnx0dro3oM7ZDDwJPN xtsPWwgPfDfV+YjCw0cj2tufSquJ/D0Ov6thn9bAjLkVuCGQR63tZWoqfu/dKkMqwLkA cGr1uAOJTnicfz6xz2DzejKvjmG42RmM4TlZqUa5uJdlRI247195yFPH4Cmg+q3EYwV+ F2CtEvMzavXmc29m168nXMBrOU9v+Q/nTtLqzTQXmM3WrWAZY5KmtB7/MT9gET+wt8me /MH6R8v4F3LwL+C5Wtjqo555NxE3sRLqhxlSRLtD3jBb6SxWxulPIz9/3NbcTJPYQx44 gwNg== 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=x1c6aXOWkMzrvJWb4ybDXSFS8VHGCMiU8NIu3wtX2eo=; b=LPyO+a/HWXwgmy+uMwAr/bg4fM/iOzBWQJb5YGrZtsLlfAdMZAqcZwCRvZMRTeuJ4X Boac6JY9dbK6hd2OlT9QnaNYGFXf9MwEuQkM/dL+gzlCxC8wYu3yzaZB/umqvDxWzNq2 N6p9oeinNRhKY0BAEN1XcPBfeezIxWUL8rVoT22x8fUN17uLn8E7iZgl2IyhHvv9DvAB Z1vCNE2pH+cb9R8m4f6/xBocMISwBeR/2aSMPDhEvn5OHkzgNV5jvdAqOhxamUu2NGxa IzNBU/ZVizkje278KOnoPt7I9qvAlvCPmh9XhVR5hCeAxuQygb52KrBy6B4D2Oht7oGk 4atA== X-Gm-Message-State: ANoB5pn4tJdGNdrcZDGMb0IymqAy1HpXDB4uFkJdCzXvsuNfEoLxw/Fx yNEJ2nlK8+w41CsI/N1pYOETvA== X-Google-Smtp-Source: AA0mqf6VqTIbFbM/3GZZ3WwiNs6TWtIxM3kHFikzFJYjrp8lUz1IztoBGICJg68rP05ZLgHwHsPsMw== X-Received: by 2002:a05:600c:41c7:b0:3cf:a0f4:7879 with SMTP id t7-20020a05600c41c700b003cfa0f47879mr27082424wmh.152.1669719618514; Tue, 29 Nov 2022 03:00:18 -0800 (PST) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:6b19:1d8e:fbca:fd02]) by smtp.gmail.com with ESMTPSA id q19-20020a1cf313000000b003a3170a7af9sm1617658wmq.4.2022.11.29.03.00.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Nov 2022 03:00:18 -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?= Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-serial@vger.kernel.org, Bartosz Golaszewski , Konrad Dybcio Subject: [PATCH v4 01/13] tty: serial: qcom-geni-serial: drop unneeded forward definitions Date: Tue, 29 Nov 2022 12:00:00 +0100 Message-Id: <20221129110012.224685-2-brgl@bgdev.pl> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221129110012.224685-1-brgl@bgdev.pl> References: <20221129110012.224685-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 83b66b73303a..9f2212e7b5ec 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, @@ -1122,11 +1122,6 @@ 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) {