From patchwork Wed Aug 4 20:21:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12419753 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5E3A2C4320A for ; Wed, 4 Aug 2021 20:25:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 316B960C3F for ; Wed, 4 Aug 2021 20:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239753AbhHDUZX (ORCPT ); Wed, 4 Aug 2021 16:25:23 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:13749 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237196AbhHDUZX (ORCPT ); Wed, 4 Aug 2021 16:25:23 -0400 X-IronPort-AV: E=Sophos;i="5.84,295,1620658800"; d="scan'208";a="89824500" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 05 Aug 2021 05:25:08 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id A5A7940E2584; Thu, 5 Aug 2021 05:25:05 +0900 (JST) From: Lad Prabhakar To: Jonathan Cameron , Geert Uytterhoeven , Rob Herring , Lars-Peter Clausen , Magnus Damm , Philipp Zabel , Alexandru Ardelean , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH v4 0/3] Renesas RZ/G2L ADC driver support Date: Wed, 4 Aug 2021 21:21:15 +0100 Message-Id: <20210804202118.25745-1-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Hi All, This patch series adds ADC support for Renesas RZ/G2L family. Patches apply on top of v5.14-rc2. Cheers, Prabhakar Changes for v4: * Fixed registering action to assert resets on failure/remove as reported by Philip. * Fixed review comments suggested by Jonathan. * Included RB tag from Rob for patch 1/3 * Note DTS patch applies on top of https://git.kernel.org/pub/scm/ linux/kernel/git/geert/renesas-devel.git/log/ ?h=renesas-arm-dt-for-v5.15 Changes for v3 (as requested by Jonathan): * Made use of FIELD_PREP() * Renamed _CLEAR to _MASK and inverted inline as required * Moved |= pair's on same lines * Made use of sysfs_emit() while reading the labels * Used for_each_bit_set() in rzg2l_adc_isr() * Renamed rzg2l_adc_parse_of() -> rzg2l_adc_parse_properties() * Used devm_add_action_or_reset() for asserting the reset signals and disabling pm_runtime and eventually removing remove() callback * Added comments in isr handler for channel select interrupt * Moved enabling/disabling of pclk during hw init in rzg2l_adc_hw_init() * Dropped clock patch 3/4 (https://lore.kernel.org/patchwork/patch/1462152/) from previous series as its queued up in renesas-clk-for-v5.15 Changes for v2: * Update binding doc, dropped gpios/renesas-rzg2l,adc-trigger-mode properties included channel property to represent each wired channel. * Fixed review comments pointed by Alexandru, implemented pm runtime support, dropped mlock usage * Fixed review comments pointed by Jonathan, renamed the macros, simplified the code. * Included clock and DT patches v1: https://patchwork.kernel.org/project/linux-renesas-soc/cover/ 20210629220328.13366-1-prabhakar.mahadev-lad.rj@bp.renesas.com/ Lad Prabhakar (3): dt-bindings: iio: adc: Add binding documentation for Renesas RZ/G2L A/D converter iio: adc: Add driver for Renesas RZ/G2L A/D converter arm64: dts: renesas: r9a07g044: Add ADC node .../bindings/iio/adc/renesas,rzg2l-adc.yaml | 134 ++++ MAINTAINERS | 8 + arch/arm64/boot/dts/renesas/r9a07g044.dtsi | 42 ++ drivers/iio/adc/Kconfig | 10 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/rzg2l_adc.c | 600 ++++++++++++++++++ 6 files changed, 795 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml create mode 100644 drivers/iio/adc/rzg2l_adc.c