From patchwork Thu Aug 25 15:02:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Schneider-Pargmann X-Patchwork-Id: 12954982 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 3C14DC28D13 for ; Thu, 25 Aug 2022 15:02:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242720AbiHYPCs (ORCPT ); Thu, 25 Aug 2022 11:02:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238804AbiHYPCi (ORCPT ); Thu, 25 Aug 2022 11:02:38 -0400 Received: from mail-ej1-x629.google.com (mail-ej1-x629.google.com [IPv6:2a00:1450:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C53A6A2606 for ; Thu, 25 Aug 2022 08:02:36 -0700 (PDT) Received: by mail-ej1-x629.google.com with SMTP id u15so31429567ejt.6 for ; Thu, 25 Aug 2022 08:02:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=JDSsnMBb5bGyEIsqOFE4oogNFTJPK6bYb53NB3jHEAk=; b=Be2BaRurQZvcr8gg5hG1lcFg1H3YnBNusHA/x/vbqUI7kZqP4fpq3AGooHrdULWgQo JzCEsl3P/1a2sU9LFPxFMRkjLUIlbbrAXJ+lzL6xlUz4bIJ+28zGWXGnHLcKav+kTO+U eV6X9YmpUBEjswhLT4C4qM7FOWnM8ACCa2ZeZX4cBXEXfzeJWEwjCwr69OoqcGMbdd9P pM6p0WaoSTpoqSuzipckFHDXD2Lx1p1pkcVH1qFtqjw1d0cs0zcqD2GvndO8SdIfB3L1 fdws4x0yohO1EuY3TyKmD99A5NPtkbhAvsSWNzYFdIKwf6qxRTXAVnlD8X5+YovPoeN8 kdiQ== 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=JDSsnMBb5bGyEIsqOFE4oogNFTJPK6bYb53NB3jHEAk=; b=RRQXZ3dCTkuwgWo8GTcew3I16QdmDXiQZjxI/l6CdbgibFlYXFN0v9XrN5zbxZM4lU N+tE5VLHXX9ysiy+zQHrUKQPwgiAd7Eo4S9I6UuUtsprsvpUCH22+xtz9qWScmZaiXdA tlnYcCrDWsMqtuQgHqbkrIbjX/vFYsBrQArpIzJNYX1ClHJcvrtKhSCm3ewZyhPbnWXX 8qxe4n3ycM3niRQvEIP3xLw4mjm07j0xUjiU4Z+GXUHfzktdKh99vzRUVWE3Uipm241a 3Zwsji94seFXIg+OvUlz9f6u6tQFsO+xzqmMb1S5HnzDlDVJ9ULh7oGnxhU0PJjH1jRZ xq6Q== X-Gm-Message-State: ACgBeo1cSOG7+yAgWXeG1hIfe/GcfzNBZk12RVsLi7ekzCIlk9nzTSqA oVQap2ulVB7TJ5F5wjLcdpiQXg== X-Google-Smtp-Source: AA6agR5w8EYyZM+LT9oNmJZ9c3AZmHgf221DS7nuO8bFYNFll050twW2UHRsMe/GbysTYYIFar4uEA== X-Received: by 2002:a17:907:75c9:b0:73d:c6b2:538c with SMTP id jl9-20020a17090775c900b0073dc6b2538cmr2750586ejc.432.1661439756325; Thu, 25 Aug 2022 08:02:36 -0700 (PDT) Received: from blmsp.fritz.box ([2001:4090:a245:8020:2658:1f7c:362:3e99]) by smtp.gmail.com with ESMTPSA id r10-20020a17090609ca00b00732e3d94f4fsm2548771eje.124.2022.08.25.08.02.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Aug 2022 08:02:35 -0700 (PDT) From: Markus Schneider-Pargmann To: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Catalin Marinas , Will Deacon , Dmitry Torokhov , Lee Jones , Tony Lindgren , nm@ti.com, kristo@kernel.org Cc: Jerome Neanne , khilman@baylibre.com, narmstrong@baylibre.com, j-keerthy@ti.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org, linux-omap@vger.kernel.org, Markus Schneider-Pargmann Subject: [PATCH v4 5/6] Input: Add tps65219 interrupt driven powerbutton Date: Thu, 25 Aug 2022 17:02:23 +0200 Message-Id: <20220825150224.826258-6-msp@baylibre.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220825150224.826258-1-msp@baylibre.com> References: <20220825150224.826258-1-msp@baylibre.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org TPS65219 has different interrupts compared to other TPS6521* chips. TPS65219 defines two interrupts for the powerbutton one for push and one for release. This driver is very simple in that it maps the push interrupt to a key input and the release interrupt to a key release. Signed-off-by: Markus Schneider-Pargmann Signed-off-by: Jerome Neanne --- drivers/input/misc/Kconfig | 10 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/tps65219-pwrbutton.c | 149 ++++++++++++++++++++++++ 3 files changed, 160 insertions(+) create mode 100644 drivers/input/misc/tps65219-pwrbutton.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index a18ab7358d8f..18d4a321e7ff 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -468,6 +468,16 @@ config INPUT_TPS65218_PWRBUTTON To compile this driver as a module, choose M here. The module will be called tps65218-pwrbutton. +config INPUT_TPS65219_PWRBUTTON + tristate "TPS65219 Power button driver" + depends on MFD_TPS65219 + help + Say Y here if you want to enable power button reporting for + TPS65219 Power Management IC devices. + + To compile this driver as a module, choose M here. The module will + be called tps65219-pwrbutton. + config INPUT_AXP20X_PEK tristate "X-Powers AXP20X power button driver" depends on MFD_AXP20X diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 28dfc444f0a9..fe8f47402d12 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -78,6 +78,7 @@ obj-$(CONFIG_INPUT_SOC_BUTTON_ARRAY) += soc_button_array.o obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o obj-$(CONFIG_INPUT_STPMIC1_ONKEY) += stpmic1_onkey.o obj-$(CONFIG_INPUT_TPS65218_PWRBUTTON) += tps65218-pwrbutton.o +obj-$(CONFIG_INPUT_TPS65219_PWRBUTTON) += tps65219-pwrbutton.o obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o obj-$(CONFIG_INPUT_TWL6040_VIBRA) += twl6040-vibra.o diff --git a/drivers/input/misc/tps65219-pwrbutton.c b/drivers/input/misc/tps65219-pwrbutton.c new file mode 100644 index 000000000000..163b545d5a54 --- /dev/null +++ b/drivers/input/misc/tps65219-pwrbutton.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Driver for TPS65219 Push Button +// +// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct tps65219_pwrbutton { + struct device *dev; + struct input_dev *idev; + char phys[32]; +}; + +static irqreturn_t tps65219_pb_push_irq(int irq, void *_pwr) +{ + struct tps65219_pwrbutton *pwr = _pwr; + + input_report_key(pwr->idev, KEY_POWER, 1); + pm_wakeup_event(pwr->dev, 0); + input_sync(pwr->idev); + + return IRQ_HANDLED; +} + +static irqreturn_t tps65219_pb_release_irq(int irq, void *_pwr) +{ + struct tps65219_pwrbutton *pwr = _pwr; + + input_report_key(pwr->idev, KEY_POWER, 0); + input_sync(pwr->idev); + + return IRQ_HANDLED; +} + +static int tps65219_pb_probe(struct platform_device *pdev) +{ + struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent); + struct device *dev = &pdev->dev; + struct tps65219_pwrbutton *pwr; + struct input_dev *idev; + int error; + int push_irq; + int release_irq; + + pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL); + if (!pwr) + return -ENOMEM; + + idev = devm_input_allocate_device(dev); + if (!idev) + return -ENOMEM; + + idev->name = pdev->name; + snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0", + pdev->name); + idev->phys = pwr->phys; + idev->dev.parent = dev; + idev->id.bustype = BUS_I2C; + + input_set_capability(idev, EV_KEY, KEY_POWER); + + pwr->dev = dev; + pwr->idev = idev; + device_init_wakeup(dev, true); + + push_irq = platform_get_irq(pdev, 0); + if (push_irq < 0) + return -EINVAL; + + release_irq = platform_get_irq(pdev, 1); + if (release_irq < 0) + return -EINVAL; + + error = devm_request_threaded_irq(dev, push_irq, NULL, + tps65219_pb_push_irq, + IRQF_ONESHOT, + dev->init_name, pwr); + if (error) { + dev_err(dev, "failed to request push IRQ #%d: %d\n", push_irq, + error); + return error; + } + + error = devm_request_threaded_irq(dev, release_irq, NULL, + tps65219_pb_release_irq, + IRQF_ONESHOT, + dev->init_name, pwr); + if (error) { + dev_err(dev, "failed to request release IRQ #%d: %d\n", + release_irq, error); + return error; + } + + error = input_register_device(idev); + if (error) { + dev_err(dev, "Can't register power button: %d\n", error); + return error; + } + + /* Enable interrupts for the pushbutton */ + regmap_clear_bits(tps->regmap, TPS65219_REG_MASK_CONFIG, + TPS65219_REG_MASK_INT_FOR_PB_MASK); + + /* Set PB/EN/VSENSE pin to be a pushbutton */ + regmap_update_bits(tps->regmap, TPS65219_REG_MFP_2_CONFIG, + TPS65219_MFP_2_EN_PB_VSENSE_MASK, TPS65219_MFP_2_PB); + + return 0; +} + +static int tps65219_pb_remove(struct platform_device *pdev) +{ + struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent); + + /* Disable interrupt for the pushbutton */ + return regmap_update_bits(tps->regmap, TPS65219_REG_MASK_CONFIG, + TPS65219_REG_MASK_INT_FOR_PB_MASK, + TPS65219_REG_MASK_INT_FOR_PB_MASK); +} + +static const struct platform_device_id tps65219_pwrbtn_id_table[] = { + { "tps65219-pwrbutton", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps65219_pwrbtn_id_table); + +static struct platform_driver tps65219_pb_driver = { + .probe = tps65219_pb_probe, + .remove = tps65219_pb_remove, + .driver = { + .name = "tps65219_pwrbutton", + }, + .id_table = tps65219_pwrbtn_id_table, +}; +module_platform_driver(tps65219_pb_driver); + +MODULE_DESCRIPTION("TPS65219 Power Button"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Markus Schneider-Pargmann