From patchwork Tue Aug 6 08:48:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Utsav Agarwal via B4 Relay X-Patchwork-Id: 817205 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6D5F31BD016; Tue, 6 Aug 2024 08:49:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722934168; cv=none; b=nD/fsQOS8Lt0wu51D7S+DkeozDKu9oy69KswfeReQhtl2IpcPJF2hhTofjYD7dqPPTzfUu9k0Mh+BcY7anqeoJeVo9ww/CND7yDyIb3itfwtuzxRvdVXH4kdS5jyFZss+f1LP3rD2zLAZttN+/fw4HqZU/Hyu9lnydiynnJ7NL8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722934168; c=relaxed/simple; bh=z6BNIWQvDIFzDFRaPnzzCuPXrZTJJc4qFGwxFyDJgYc=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=grPz8YnEcj12N2wsa4mbmZBsE93Ecw2wOSOXOSvULOInJMPYysWGLeogYkvsbifGZZLyhZEbstTjjZmWUxY/8wTPtVS1LCDpcs4FAEzO8kBYqCC72ounXxzVRjIGDtOhQ2PABUl7XJo70ad53lTB8wWBu6u7W9ZAr+XLiOt8bNw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tt+hbk+A; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tt+hbk+A" Received: by smtp.kernel.org (Postfix) with ESMTPS id F18D1C32786; Tue, 6 Aug 2024 08:49:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722934168; bh=z6BNIWQvDIFzDFRaPnzzCuPXrZTJJc4qFGwxFyDJgYc=; h=From:Subject:Date:To:Cc:Reply-To:From; b=tt+hbk+APODZ+79aGebmSb3xZ0eE5TmPG/RGh/EO4X71g4plRbuSAZ6mGf81pbfF3 1gYEZ1VPfitrsVi1E/tz5kJ7oJeG3fzUmD4jkhXqGuaNPoad9cgwu84BiKt/WsekyK qdFvskMwW0oZvVAH+1BRW66f/Zp+dUv3fuiIdN0OQ+Vx0++mKVbc84buMi3gJsZ52U bT4oXax/TwPzrOdIykjzcSdIP0CQNBQVuHfYwzF4Xsa4bfbfKDVvV6nRpAuBW2BNet IgUvEVIiad6wiP6Hfh6nYWMB6F1NHriu1VTw6JCoj7izvY4GnwZxH0Dr3ZSsJUJk/v tWH4JbSg/N8+Q== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5A48C3DA64; Tue, 6 Aug 2024 08:49:27 +0000 (UTC) From: Utsav Agarwal via B4 Relay Subject: [PATCH v9 0/3] adp5588-keys: Support for dedicated gpio operation Date: Tue, 06 Aug 2024 09:48:01 +0100 Message-Id: <20240806-adp5588_gpio_support-v9-0-4d6118b6d653@analog.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAEHjsWYC/43NTWrDMBCG4asErasiyzOSnFXvUUrQz9gRtJaQU tMSfPfKWaWkoVm+H8wzZ1apRKpsvzuzQkusMc0thqcd80c7T8RjaM2kkCC06LgNGdGYw5RjOtT PnFM5cYXBSRdkZ4eRtdNcaIxfF/b1rfUx1lMq35cvC2zrP+ACXHAA56wAQBrEi53te5qeffpgm 7jgtdLfUXBThtGTDSL0fyjqWoE7imqKdwqxg6A7cDeKfkTRTaEeyGlyFu2tYh5RTFOkMH7EAF4 G9UtZ1/UH6IBqtdEBAAA= To: Utsav Agarwal , Michael Hennerich , Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Nuno_S=C3=A1?= Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Arturs Artamonovs , Vasileios Bimpikas , Oliver Gaskell X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1722934106; l=3577; i=utsav.agarwal@analog.com; s=20240701; h=from:subject:message-id; bh=z6BNIWQvDIFzDFRaPnzzCuPXrZTJJc4qFGwxFyDJgYc=; b=/ifpxzrm/VKkH30SmFcTiMGHhueyyNmb9b62CQ2n+z0olhvOUiEGaDbJr/BVye4sUGEvdFQzi CUX9tX4Rbz1C838FBv1DHk2FsQMTeZcRNm8ehjxf1pgLXjBwLMM886o X-Developer-Key: i=utsav.agarwal@analog.com; a=ed25519; pk=mIG5Dmd3TO5rcICwTsixl2MoUcf/i2u+jYqifd7+fmI= X-Endpoint-Received: by B4 Relay for utsav.agarwal@analog.com/20240701 with auth_id=178 X-Original-From: Utsav Agarwal Reply-To: utsav.agarwal@analog.com Current state of the driver for the ADP5588/87 only allows partial I/O to be used as GPIO. This support was previously present as a separate gpio driver, which was dropped with the commit 5ddc896088b0 ("gpio: gpio-adp5588: drop the driver") since the functionality was deemed to have been merged with adp5588-keys. This series of patches re-enables this support by allowing the driver to relax the requirement for registering a keymap and enable pure GPIO operation. Changelog ========== V2: - Changed gpio_only from a local variable to a member of struct adp5588_kpad - Removed condition from adp5588_probe() to skip adp5588_fw_parse() if gpio-only specified. adp558_fw_parse() now handles and returns 0 if gpio-only has been specified. - Added a check in adp5588_fw_parse() to make sure keypad properties(keypad,num-columns and keypad,num-rows) were not defined when gpio-only specified V3: - Moved device_property_present() for reading "gpio-only" into adp558_fw_parse() - Added print statements in case of error V4: - Added dt-bindings patch Signed-off-by: Utsav Agarwal --- V5: - Removed extra property "gpio-only", now pure gpio mode is detected via the adbsence of keypad specific properties. - Added dependencies for keypad properties to preserve the original requirements in case a pure gpio mode is not being used. - Added additional description for why the "interrupts" property was made optional - Rebased current work based on https://lore.kernel.org/linux-input/ZoLt_qBCQS-tG8Ar@google.com/ - Link to v4: https://lore.kernel.org/r/20240701-adp5588_gpio_support-v4-0-44bba0445e90@analog.com --- Changes in v9: - Added dt-binding dependency for interrupt-controller. Now if interrupt-controller is specified, interrupts must be provided. - Link to v8: https://lore.kernel.org/r/20240704-adp5588_gpio_support-v8-0-208cf5d4c2d6@analog.com Changes in v8: - Fixed indentation in document example (removed extra spaces) - Link to v7: https://lore.kernel.org/r/20240704-adp5588_gpio_support-v7-0-e34eb7eba5ab@analog.com Changes in v7: - Fixed commit subject for transported patch - Driver now does not setup gpio_irq_chip if interrupt has not been provided - Fixed indentation for dtbinding example - Link to v6: https://lore.kernel.org/r/20240704-adp5588_gpio_support-v6-0-cb65514d714b@analog.com Changes in v6: - Restored functionality to register interrupts in GPIO mode(i.e, these are optional but not exclusive to keypad mode since even in pure gpio mode, they can be used as inputs via gpio-keys) - Updated dt-bindings such that each keypad property depends on the others. Interrupts, although optional are now required by keypad mode but are not limited to it. - Link to v5: https://lore.kernel.org/r/20240703-adp5588_gpio_support-v5-0-49fcead0d390@analog.com --- Dmitry Torokhov (1): Input: adp5588-keys - use guard notation when acquiring mutexes Utsav Agarwal (2): Input: adp5588-keys - add support for pure gpio dt-bindings: input: Update dtbinding for adp5588 .../devicetree/bindings/input/adi,adp5588.yaml | 51 +++++++++++-- drivers/input/keyboard/adp5588-keys.c | 86 +++++++++++++--------- 2 files changed, 95 insertions(+), 42 deletions(-) --- base-commit: 1c52cf5e79d30ac996f34b64284f2c317004d641 change-id: 20240701-adp5588_gpio_support-65db2bd21a9f Best regards,