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[76.183.134.35]) by smtp.gmail.com with ESMTPSA id m24-20020a4ae3d8000000b00425678b9c4bsm2599653oov.0.2022.08.16.14.04.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Aug 2022 14:04:48 -0700 (PDT) From: Chris Morgan To: linux-input@vger.kernel.org Cc: linux-iio@vger.kernel.org, dmitry.torokhov@gmail.com, contact@artur-rojek.eu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, heiko@sntech.de, jic23@kernel.org, paul@crapouillou.net, Chris Morgan , Maya Matuszczyk , Rob Herring Subject: [PATCH v13 1/3] dt-bindings: adc-joystick: add poll-interval Date: Tue, 16 Aug 2022 16:04:38 -0500 Message-Id: <20220816210440.14260-2-macroalpha82@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220816210440.14260-1-macroalpha82@gmail.com> References: <20220816210440.14260-1-macroalpha82@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Chris Morgan Add poll-interval support for the adc-joystick documentation. This is an optional value and if not provided the adc-joystick works as it does today (with buffers). If this value is provided, the adc-joystick driver is polled at the specified interval. The existing attribute of "poll-interval" was used instead of complying with property-units.yaml after discussion of the issue on the mailing list. Signed-off-by: Maya Matuszczyk Signed-off-by: Chris Morgan Reviewed-by: Rob Herring Acked-by: Artur Rojek --- Documentation/devicetree/bindings/input/adc-joystick.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/input/adc-joystick.yaml b/Documentation/devicetree/bindings/input/adc-joystick.yaml index 64d961458ac7..da0f8dfca8bf 100644 --- a/Documentation/devicetree/bindings/input/adc-joystick.yaml +++ b/Documentation/devicetree/bindings/input/adc-joystick.yaml @@ -14,6 +14,9 @@ description: > Bindings for joystick devices connected to ADC controllers supporting the Industrial I/O subsystem. +allOf: + - $ref: input.yaml# + properties: compatible: const: adc-joystick @@ -28,6 +31,8 @@ properties: https://github.com/devicetree-org/dt-schema/blob/master/schemas/iio/iio-consumer.yaml for details. + poll-interval: true + '#address-cells': const: 1 From patchwork Tue Aug 16 21:04:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 12945291 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 98555C32773 for ; Tue, 16 Aug 2022 21:04:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237410AbiHPVEy (ORCPT ); Tue, 16 Aug 2022 17:04:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237404AbiHPVEw (ORCPT ); Tue, 16 Aug 2022 17:04:52 -0400 Received: from mail-ot1-x333.google.com (mail-ot1-x333.google.com [IPv6:2607:f8b0:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0876B786EB; Tue, 16 Aug 2022 14:04:51 -0700 (PDT) Received: by mail-ot1-x333.google.com with SMTP id m21-20020a9d6ad5000000b00638df677850so406414otq.5; Tue, 16 Aug 2022 14:04:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=c13rZU/sHkVe3AVBpoXMuIMUwb2iadvrf9BWvXklTVQ=; b=EOI3It51llXIOXWbmV/a+WTR9xKGKAS+f1Amz+NeuQtcc+qqi21MP6PDV/CbvZG8M2 6dPR5TRjnhptExKusRb23B6RYGARee3GiJlueppCYIcUvS4kAdmjmIig0v+AveBkVlmG rhs3Dc7/a356A7MGj8uw+xkTUuqGcTUYILGzKQ/u/XH8P49Y9ogR2F7H0oDl9uT3n4VU n0AKeAFlqspEaVSR7gSlXeSV3Jde8mXzbTrAzCOjmPj4T3Jv+7uAh9d/B/qC3/smYDsI 4i47oNsTIyKwO8S6Abmt9BQVLwEhIz+663rqmaXu8wp+Rp8AVgdIgzIM26f8JeeE9AYh 4ArQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=c13rZU/sHkVe3AVBpoXMuIMUwb2iadvrf9BWvXklTVQ=; b=3iBzHdaOefVMc87GuNAzVIC7PEisufmzyeg9dn8TvbtXlvqvIZ85okBSMy7Bd4WRI8 /f4+YPZy5F7Pqy/S+c44Oow49RVw9XzhIh3yWBm88+lpcJihydZMZ/s6kO+M0XcelQ2N T9oTrJc8I8YoFmIhpDD4KA0jcIfCrjKkk78hW92boA/SsQGEkgmGuX4mzy4hPgjvS/Lj DoaHRbNlpz19ZT7lkoflJU0yRXah7WtKMhvrYUwHd9FtavDydJKfknori9PbHUaIUmAw RuSLNJHrWMhycnUnxvKuuwSUMPqo0LApbPRgxvRWJ/dg6L0nS98cimZY4Q8sOCQuAVtG b1Iw== X-Gm-Message-State: ACgBeo2TNsr0QDTfa9mm3A6J2SZS86B/Pw2517pqZwV583Y8+mSF20u8 nQTDCf4MR17YQL3t0Q+XzhcOscItuK0= X-Google-Smtp-Source: AA6agR7ces5zfR6bZNxlvTX+xAKAO8qag+axUScPiZIUv3iPsDRnOqPd0I6LfvCGZVA6IFWtRO2ljQ== X-Received: by 2002:a9d:2c3:0:b0:638:d57d:2250 with SMTP id 61-20020a9d02c3000000b00638d57d2250mr1227637otl.143.1660683890019; Tue, 16 Aug 2022 14:04:50 -0700 (PDT) Received: from wintermute.localdomain (cpe-76-183-134-35.tx.res.rr.com. [76.183.134.35]) by smtp.gmail.com with ESMTPSA id m24-20020a4ae3d8000000b00425678b9c4bsm2599653oov.0.2022.08.16.14.04.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Aug 2022 14:04:49 -0700 (PDT) From: Chris Morgan To: linux-input@vger.kernel.org Cc: linux-iio@vger.kernel.org, dmitry.torokhov@gmail.com, contact@artur-rojek.eu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, heiko@sntech.de, jic23@kernel.org, paul@crapouillou.net, Chris Morgan , Maya Matuszczyk Subject: [PATCH v13 2/3] input: adc-joystick - Add polled input device support Date: Tue, 16 Aug 2022 16:04:39 -0500 Message-Id: <20220816210440.14260-3-macroalpha82@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220816210440.14260-1-macroalpha82@gmail.com> References: <20220816210440.14260-1-macroalpha82@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Chris Morgan Add polled input device support to the adc-joystick driver. This is useful for devices which do not have hardware capable triggers on their SARADC. Code modified from adc-joystick.c changes made by Maya Matuszczyk. Signed-off-by: Maya Matuszczyk Signed-off-by: Chris Morgan --- drivers/input/joystick/adc-joystick.c | 48 +++++++++++++++++++++++++-- 1 file changed, 45 insertions(+), 3 deletions(-) diff --git a/drivers/input/joystick/adc-joystick.c b/drivers/input/joystick/adc-joystick.c index e0cfdc84763f..3942574e8ecf 100644 --- a/drivers/input/joystick/adc-joystick.c +++ b/drivers/input/joystick/adc-joystick.c @@ -26,8 +26,23 @@ struct adc_joystick { struct adc_joystick_axis *axes; struct iio_channel *chans; int num_chans; + bool polled; }; +static void adc_joystick_poll(struct input_dev *input) +{ + struct adc_joystick *joy = input_get_drvdata(input); + int i, val, ret; + + for (i = 0; i < joy->num_chans; i++) { + ret = iio_read_channel_raw(&joy->chans[i], &val); + if (ret < 0) + return; + input_report_abs(input, joy->axes[i].code, val); + } + input_sync(input); +} + static int adc_joystick_handle(const void *data, void *private) { struct adc_joystick *joy = private; @@ -179,6 +194,7 @@ static int adc_joystick_probe(struct platform_device *pdev) int error; int bits; int i; + unsigned int poll_interval; joy = devm_kzalloc(dev, sizeof(*joy), GFP_KERNEL); if (!joy) @@ -192,8 +208,25 @@ static int adc_joystick_probe(struct platform_device *pdev) return error; } - /* Count how many channels we got. NULL terminated. */ + error = device_property_read_u32(dev, "poll-interval", &poll_interval); + if (error) { + /* -EINVAL means the property is absent. */ + if (error != -EINVAL) + return error; + } else if (poll_interval == 0) { + dev_err(dev, "Unable to get poll-interval\n"); + return -EINVAL; + } else { + joy->polled = true; + } + + /* + * Count how many channels we got. NULL terminated. + * Do not check the storage size if using polling. + */ for (i = 0; joy->chans[i].indio_dev; i++) { + if (joy->polled) + continue; bits = joy->chans[i].channel->scan_type.storagebits; if (!bits || bits > 16) { dev_err(dev, "Unsupported channel storage size\n"); @@ -215,13 +248,20 @@ static int adc_joystick_probe(struct platform_device *pdev) joy->input = input; input->name = pdev->name; input->id.bustype = BUS_HOST; - input->open = adc_joystick_open; - input->close = adc_joystick_close; error = adc_joystick_set_axes(dev, joy); if (error) return error; + if (joy->polled) { + input_setup_polling(input, adc_joystick_poll); + input_set_poll_interval(input, poll_interval); + goto register_joystick; + } else { + input->open = adc_joystick_open; + input->close = adc_joystick_close; + } + joy->buffer = iio_channel_get_all_cb(dev, adc_joystick_handle, joy); if (IS_ERR(joy->buffer)) { dev_err(dev, "Unable to allocate callback buffer\n"); @@ -234,6 +274,8 @@ static int adc_joystick_probe(struct platform_device *pdev) return error; } +register_joystick: + input_set_drvdata(input, joy); error = input_register_device(input); From patchwork Tue Aug 16 21:04:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Morgan X-Patchwork-Id: 12945290 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 A2916C32792 for ; Tue, 16 Aug 2022 21:04:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237214AbiHPVEz (ORCPT ); Tue, 16 Aug 2022 17:04:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237412AbiHPVEy (ORCPT ); Tue, 16 Aug 2022 17:04:54 -0400 Received: from mail-oi1-x234.google.com (mail-oi1-x234.google.com [IPv6:2607:f8b0:4864:20::234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A06FA78BFE; Tue, 16 Aug 2022 14:04:52 -0700 (PDT) Received: by mail-oi1-x234.google.com with SMTP id w197so13401462oie.5; Tue, 16 Aug 2022 14:04:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=yrhBL50UTTJaHzMh461WNNj8NIR2DIRZ1vY8GGWYUG8=; b=iSTH85RRCQPb0TqUxqm6gRr2OPfhosNC5566I58X1fgNmFpQ/cMeA9K7KseOdeyQuN DobAxA7q5v8Ku5gtFjWldU92c7KFMzcvRL0VMKCSNHvrRg8NBa/cgVj7rPaGPHi2eXOf tkO4eXTDf5qkFj0/Ea9EJ41fm4nloRVARZdaEo7hlykS3QT5iHu415qOjF0dHPHMsweN zwKIO0VOviXK5iNRiP4bVzN3V1R5fpjkkEaljFw66387Kn4oFRrnDi3+P2NiqQO0h5pI 7lAC8z6QwpzGgvLSkOP8lLJDyY1OxxPnJdLNcCKRyk1DD4n4Cmo/8AjgX4pr8QZ/aSCM 6Oig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=yrhBL50UTTJaHzMh461WNNj8NIR2DIRZ1vY8GGWYUG8=; b=11pIwJhUSuvI55PLYtNCJUaqLmQg5Q3Pv5rJ+vK7hwKpeeR3DhVurPWRBoBFLe+jVZ YjyrkKK9WeNFU6z6dD4w1Xg0d+P1sPS+rkqxScYEm/S8pQbd62+qt8tanDkcMbI9AgXT Ncxz4LZ5vLksD+aBiqeEJtaxPlCO94CKik4IO93bG6L7v/ZbKJuzfi92XWwYGhbXf28T +sapUr6zy6ALCHfvmLE1KfdIHovklro0a8iMKMoxJcsxtEV4vzQQkU3l6BCg+4HLiP/O JRZGJElELRL3PqzixeXWo7cOj5DKZyqdFVdd3vZYOLf19AsC1fqdDL8RHDfPHVtDUxHx hfYQ== X-Gm-Message-State: ACgBeo3ftzvyfBpXSN7GI/+RRZ/3HZyZrZiOFLH8R+7+OT0I1DSRj/oG iS+6w4Lru0/3bvDeoZtQNm3geGViKiE= X-Google-Smtp-Source: AA6agR6Wg+5A18uPszIxrKEMO49o3cZj9pspbXmrojqlTHGC/FnTbgaFVMMmwi0InDU1rTDIzd7PDA== X-Received: by 2002:a05:6808:d1:b0:343:221a:c35a with SMTP id t17-20020a05680800d100b00343221ac35amr175136oic.95.1660683891262; Tue, 16 Aug 2022 14:04:51 -0700 (PDT) Received: from wintermute.localdomain (cpe-76-183-134-35.tx.res.rr.com. [76.183.134.35]) by smtp.gmail.com with ESMTPSA id m24-20020a4ae3d8000000b00425678b9c4bsm2599653oov.0.2022.08.16.14.04.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Aug 2022 14:04:50 -0700 (PDT) From: Chris Morgan To: linux-input@vger.kernel.org Cc: linux-iio@vger.kernel.org, dmitry.torokhov@gmail.com, contact@artur-rojek.eu, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, heiko@sntech.de, jic23@kernel.org, paul@crapouillou.net, Chris Morgan , Maya Matuszczyk Subject: [PATCH v13 3/3] arm64: dts: rockchip: Update joystick to polled for OG2 Date: Tue, 16 Aug 2022 16:04:40 -0500 Message-Id: <20220816210440.14260-4-macroalpha82@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220816210440.14260-1-macroalpha82@gmail.com> References: <20220816210440.14260-1-macroalpha82@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Chris Morgan Update the Odroid Go Advance to use "poll-interval" from the adc-joystick driver. Signed-off-by: Chris Morgan Signed-off-by: Maya Matuszczyk --- arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts index 415aa9ff8bd4..3389755dbdc8 100644 --- a/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts +++ b/arch/arm64/boot/dts/rockchip/rk3326-odroid-go2.dts @@ -26,6 +26,7 @@ adc-joystick { compatible = "adc-joystick"; io-channels = <&saradc 1>, <&saradc 2>; + poll-interval = <60>; #address-cells = <1>; #size-cells = <0>;