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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 308ABC07E9D for ; Mon, 26 Sep 2022 16:39:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229655AbiIZQjo (ORCPT ); Mon, 26 Sep 2022 12:39:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229674AbiIZQjV (ORCPT ); Mon, 26 Sep 2022 12:39:21 -0400 Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10D31137E6D for ; Mon, 26 Sep 2022 08:26:33 -0700 (PDT) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed50:d95b:5c9b:4085:7c0d]) by michel.telenet-ops.be with bizsmtp id QfST280083Qogd106fSTnm; Mon, 26 Sep 2022 17:26:27 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1ocq03-006Jqw-0m; Mon, 26 Sep 2022 17:26:27 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1ocq02-00DOPq-GG; Mon, 26 Sep 2022 17:26:26 +0200 From: Geert Uytterhoeven To: Magnus Damm Cc: Wolfram Sang , linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Geert Uytterhoeven Subject: [PATCH 0/2] arm64: dts: renesas: r8a779g0: Add DMA and MSIOF support Date: Mon, 26 Sep 2022 17:26:22 +0200 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hi all, This patch series adds support for DMA on the R-Car V4H SoC, to be used (for now) by: - I2C, - the HSCIF0 serial port, - the newly-added MSIOF SPI support. HSCIF0 DMA was tested on the White Hawk development board by removing the uart_console() check from sci_request_dma(). MSIOF1 and MSIOF2 were tested on the MSIOF Pin Headers on the White Hawk development board using a logic analyzer, and internal and external loopback with the spi-loopback-test module, cfr. the DT overlays at [1]. Unfortunately I don't know how to test I2C DMA: all transfers used by the AT24 EEPROM driver seem to be either too small, or unsafe for DMA. Anyone who knows a good test client? I plan to queue these in renesas-devel-for-v6.2. Thanks! [1] https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=topic/renesas-overlays&id=88f65e516d426aaa105416557f8157a38147cb21 Geert Uytterhoeven (2): arm64: dts: renesas: r8a779g0: Add DMA support arm64: dts: renesas: r8a779g0: Add MSIOF nodes arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 187 ++++++++++++++++++++++ 1 file changed, 187 insertions(+) -- 2.25.1 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds