From patchwork Fri Jul 15 11:16:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreeya Patel X-Patchwork-Id: 12919014 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 3527BC433EF for ; Fri, 15 Jul 2022 11:17:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229786AbiGOLRE (ORCPT ); Fri, 15 Jul 2022 07:17:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229671AbiGOLRD (ORCPT ); Fri, 15 Jul 2022 07:17:03 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8073787234; Fri, 15 Jul 2022 04:17:02 -0700 (PDT) Received: from localhost.localdomain (unknown [IPv6:2405:201:10:3153:7fbd:8a7b:29b6:89fb]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: shreeya) by madras.collabora.co.uk (Postfix) with ESMTPSA id 5AFB86601A54; Fri, 15 Jul 2022 12:16:57 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1657883821; bh=He0gPNfWNP135C8R2wJfjaqIpobFYUr12zyypMg6Ky4=; h=From:To:Cc:Subject:Date:From; b=dFnd51TqZWhF0LfzULh+HT3OHRhPztw9i5S1MCMyIVP4qXhyn7RtCxNsDhsVKPhOM mllh34ctq51bMZ979ZclSy6IutzabkLMBlXUIatf+YKu3vHKiS3lAlIkUqVNpvsEsq emmX03BGZ8id+SV3UvrwVOtZkyiBE/7hkmQqu73daArDSe9WezqVwGNce7Cf6UAv/3 wSpRC5WahiT57U+hTmmwQHceaM40TeDS2JBXloamYepKPeEMr2ZNeLXkQK1U3TPwcV LF1928VYu5enSNoxtMjqECrtLyZEdm++xxdZooBVh7d8k8ARKDojW0da+O+4kWv6/T Kc0BqstzVqkQg== From: Shreeya Patel To: jic23@kernel.org, lars@metafoo.de, robh+dt@kernel.org, dmitry.osipenko@collabora.com, Zhigang.Shi@liteon.com Cc: krisman@collabora.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com, alvaro.soliverez@collabora.com, andy.shevchenko@gmail.com, Shreeya Patel Subject: [PATCH v9 0/2] Add LTRF216A Driver Date: Fri, 15 Jul 2022 16:46:24 +0530 Message-Id: <20220715111626.1066513-1-shreeya.patel@collabora.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This patchset adds support for ltrf216a Ambient Light Sensor and documents the DT bindings for the same. Changes in v9 - Add LTRF216A_MAIN_STATUS register in volatile function. - Update the datasheet link. Changes in v8 - Add caching mechanism to restore register state after h/w resume. - Add callback functions and disable locking in regmap config. - Update mutex comment as per it's current scope in the driver. - Add Shreeya as author of the driver. - Make some minor cleanups. Changes in v7 - Add regmap support. - Fix runtime power management implementation. - Fix the ordering of devm and non-devm functions. - Use DEFINE_RUNTIME_DEV_PM_OPS macro - Fix the error reported by kernel test robot for bindings. Changes in v6 - Fix some errors reported by kernel test robot. - Add protocol details for the datasheet link. - Remove useless assignments. - Add unit details for read data delay macro. - Use pm_sleep_ptr(). Changes in v5 - Add power management support. - Add reset functionality. - Use readx_poll_timeout() to get data. - Cleanup some of the redundant code. - Update int_time_fac after I2C write is successful. - Rename mutex to lock. - Use Reverse Xmas tree pattern for all variable definitions. - Improve error handling messages and add error codes. - Add one more MODULE_AUTHOR. - Remove cleardata which was reading data for infrared light. - Remove patch for deprecated vendor prefix [PATCH v4 3/3]. - Remove deprecated string from DT binding document. Changes in v4 - Add more descriptive comment for mutex lock - Fix mutex locking in read_raw() - Use i2c_smbus_read_i2c_block_data() Changes in v3 - Use u16 instead of u8 for int_time_fac - Reorder headers in ltrf216a.c file - Remove int_time_mapping table and use int_time_available - Fix indentation in the bindings file. Changes in v2 - Add support for 25ms and 50ms integration time. - Rename some of the macros as per names given in datasheet - Add a comment for the mutex lock - Use read_avail callback instead of attributes and set the appropriate _available bit. - Use FIELD_PREP() at appropriate places. - Add a constant lookup table for integration time and reg val - Use BIT() macro for magic numbers. - Improve error handling at few places. - Use get_unaligned_le24() and div_u64() - Use probe_new() callback and devm functions - Return errors in probe using dev_err_probe() - Use DEFINE_SIMPLE_DEV_PM_OPS() - Correct the formula for lux to use 0.45 instead of 0.8 - Add interrupt and power supply property in DT bindings - Add vendor prefix name as per the alphabetical order. Shreeya Patel (2): dt-bindings: Document ltrf216a light sensor bindings iio: light: Add support for ltrf216a sensor .../bindings/iio/light/liteon,ltrf216a.yaml | 49 ++ drivers/iio/light/Kconfig | 11 + drivers/iio/light/Makefile | 1 + drivers/iio/light/ltrf216a.c | 523 ++++++++++++++++++ 4 files changed, 584 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml create mode 100644 drivers/iio/light/ltrf216a.c