From patchwork Tue Nov 29 10:59:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 629582 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 8BEE6C46467 for ; Tue, 29 Nov 2022 11:00:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232463AbiK2LAV (ORCPT ); Tue, 29 Nov 2022 06:00:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43092 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232401AbiK2LAU (ORCPT ); Tue, 29 Nov 2022 06:00:20 -0500 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1428A60E90 for ; Tue, 29 Nov 2022 03:00:19 -0800 (PST) Received: by mail-wm1-x330.google.com with SMTP id ja4-20020a05600c556400b003cf6e77f89cso789177wmb.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:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=d+09qXh0NhML0ghMdZ0DgbukyltRXuBwI2pHrmUWaEg=; b=aSquoMEBUfqqZNx/uEVzgl071VU0ZOwyQWPRpbeEXU96Y3avMpBFlRUq1Rpid5Yxao fMT0/rjff15nWSXDg9YySgo1iaxKkNGGGhV3q6ObZIT+5ijZmN/oc//F9Mv6tfemKakN rh8+q5gmIZkHaIV73wUOu9gVQnCHElEn0+Mkxr1UzbDKB6/bcnFa7TGDG5u52tuVX/sP ND9tVSfB3ITk729cxtnq7ix5GV/zGY7c2HzZSmI+re3SFMkQtMpywYpkyA2l3IrfxC5w Tc+Vt7PDAAxHyTNmqAINR8mjJw/+qL7RMofvBVc70HtePpeKoAOKcDr2tDBJwON6jyIK Lmvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=d+09qXh0NhML0ghMdZ0DgbukyltRXuBwI2pHrmUWaEg=; b=Qu1tMP8PHp8t6VSV7HPSVQMTP/95aNOyI8wyePIXFNvTPPYuoT7jeooEWHzN3it2x6 QybEoyxOX2sxC7WktM+RqT7NJT3bcf+sXWE3fDRJocka6WafXe/eBAP6ZxhW/J7YXR2K ueySRmado1+/qIGWWZsKkEkQwHibGfThh69qcdieL7250ZE68wmtVEvCGQ00dvZ0KdrJ FbdpnuXF/dafbIreoY5lNmvS4GdSOt8bwcRbykwZ6vsgV8kcMEmdCn05IxXrf2W8enrQ jRTAVVwCIIZa1w0p67TVbbcuwi2kUi7RrywjrTPCi9EdXm5lzE3xbaQ1XwOwNgc0aHQc TnBw== X-Gm-Message-State: ANoB5pnog3rDFtuD3muYzQ8VdtbJMPiiGZx+W4PgSMPTHo1zY3fmVpSJ EEqpkYDkjP4P50tcBkh/HYdvcQ== X-Google-Smtp-Source: AA0mqf7AmoGP2gkcGOaBgu5TQ1VPz68+jGVyk5jZ7736C57Co5tY9pi6tibJNnULTszACJAzbfqSuA== X-Received: by 2002:a05:600c:22c4:b0:3cf:71b7:7a41 with SMTP id 4-20020a05600c22c400b003cf71b77a41mr42246508wmg.31.1669719617513; Tue, 29 Nov 2022 03:00:17 -0800 (PST) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:6b19:1d8e:fbca:fd02]) by smtp.gmail.com with ESMTPSA id q19-20020a1cf313000000b003a3170a7af9sm1617658wmq.4.2022.11.29.03.00.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Nov 2022 03:00:17 -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 Subject: [PATCH v4 00/13] serial: qcom-geni-serial: implement support for SE DMA Date: Tue, 29 Nov 2022 11:59:59 +0100 Message-Id: <20221129110012.224685-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bartosz Golaszewski The goal of this series is to update the qcom-geni-serial driver to use the DMA mode of the QUPv3 serial engine. This is accomplished by the last patch in the series. The previous ones contain either various tweaks, reworks and refactoring or prepare the driver for adding DMA support. More work will follow on the serial engine in order to reduce code redundancy among its users and add support for SE DMA to the qcom GENI SPI driver. v3 -> v4: - don't assign NULL (even cast) to variables of type dma_addr_t - refactor checking the SE_GENI_STATUS into two inline functions - drop min_t() in favor of regular min() after adding some consistency to types - check if the abort command was successful and emit a message if not when stopping TX in DMA mode v2 -> v3: - drop devres patches from the series v1 -> v2: - turn to_dev_uport() macro into a static inline function - use CIRC_CNT_TO_END() and uart_xmit_advance() where applicable and don't handle xmit->tail directly - drop sizeof() where BYTES_PER_FIFO_WORD can be used - further refactor qcom_geni_serial_handle_tx_fifo() - collect review tags Bartosz Golaszewski (13): tty: serial: qcom-geni-serial: drop unneeded forward definitions tty: serial: qcom-geni-serial: remove unused symbols tty: serial: qcom-geni-serial: align #define values tty: serial: qcom-geni-serial: improve the to_dev_port() macro tty: serial: qcom-geni-serial: remove stray newlines tty: serial: qcom-geni-serial: refactor qcom_geni_serial_isr() tty: serial: qcom-geni-serial: remove unneeded tabs tty: serial: qcom-geni-serial: refactor qcom_geni_serial_handle_tx() tty: serial: qcom-geni-serial: drop the return value from handle_rx tty: serial: qcom-geni-serial: use of_device_id data tty: serial: qcom-geni-serial: stop operations in progress at shutdown soc: qcom-geni-se: add more symbol definitions tty: serial: qcom-geni-serial: add support for serial engine DMA drivers/tty/serial/qcom_geni_serial.c | 628 +++++++++++++++++--------- include/linux/qcom-geni-se.h | 3 + 2 files changed, 415 insertions(+), 216 deletions(-)